A natural gas station ice block processing method, device, system and storage medium

Abstract

The application provides a natural gas station ice block processing method, device, system and storage medium, and belongs to the technical field of natural gas pipeline processing, and the method comprises the steps of: importing natural gas station pipeline data and natural gas station pressure regulating valve data; performing ice block analysis on the natural gas station pipeline data to obtain pipeline ice block analysis results; performing ice block analysis on the natural gas station pressure regulating valve data to obtain pressure regulating valve ice block analysis results; and controlling the natural gas station equipment to be opened according to the pipeline ice block analysis results and the pressure regulating valve ice block analysis results. The application realizes pre-warning and pre-preventive working condition adjustment of the ice block condition, does not require manual intervention throughout the process, realizes logical research and early warning of the ice block, greatly improves the automation degree and reliability of the natural gas distribution pressure regulating system, and solves the problems of traditional ice block judgment, such as relying on personnel experience, post-disposal, less pre-warning and ice block disposal relying on on-site personnel experience.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the technical field of natural gas pipeline processing, and particularly relates to a natural gas station ice block processing method, device, system and storage medium. BACKGROUND

[0002] When a natural gas station distributes natural gas to downstream users, high-pressure natural gas needs to be reduced in pressure by a pressure regulating system and then transported. Due to factors such as the cleanliness of natural gas, natural climate conditions, pipeline working conditions, the cleanliness of long-distance pipelines / station pipelines and water dew point, solid hydrates are easily precipitated in the pressure regulating system or other equipment, causing gas path blockage, which has a great impact on downstream distribution.

[0003] A typical natural gas station distribution device is composed of a safety cut-off valve, a monitoring valve and a working pressure regulating valve, which are connected in series from upstream to downstream. When working normally, the safety cut-off valve and the monitoring valve are kept fully open, and the working pressure regulating valve is used to adjust and control the distribution pressure of the downstream. Due to the throttling effect, ice block usually occurs in the working pressure regulating valve, which causes the pressure difference before and after the working pressure regulating valve to become larger and the opening to become larger, while the flow passing through is reduced to 0, causing poor distribution or even interruption, resulting in distribution interruption accidents.

[0004] The conventional ice block processing mode is as follows: (1) it is basically an emergency treatment after ice block occurs, which is a post-response and consumes more manpower and resources; (2) the judgment of ice block of each device on site depends on the experience of on-site personnel in actual application, is greatly affected by the skill and experience level of personnel, and has great uncertainty; (3) the use of ice block removal equipment needs personnel to operate manually, and there is a timeliness problem in response for unmanned or less manned stations; (4) if the downstream natural gas users cannot stop transportation due to special reasons, such as power plants, ceramic / glass manufacturing plants and high-pressure large-flow pipelines without pipe storage, the distribution interruption caused by ice block will cause great economic losses to downstream users and distribution enterprises. SUMMARY

[0005] The present application mainly relates to the technical field of natural gas pipeline processing, and particularly relates to a natural gas station ice block processing method, device, system and storage medium.

[0006] The technical solution of the present application to solve the above technical problems is as follows: a natural gas station ice block processing method, comprising the following steps:

[0007] Importing natural gas station pipeline data and natural gas station pressure regulating valve data;

[0008] Performing ice block analysis on the pipeline of the natural gas station pipeline data to obtain a pipeline ice block analysis result;

[0009] The natural gas station pressure regulating valve data is subjected to ice blocking analysis of the pressure regulating valve, and ice blocking analysis results of the pressure regulating valve are obtained.

[0010] The natural gas station equipment is controlled to be opened according to the pipe ice blocking analysis results and the pressure regulating valve ice blocking analysis results.

[0011] Another technical solution for solving the above technical problem is as follows: a natural gas station ice blocking processing device, comprising:

[0012] An import module is configured to import natural gas station pipe data and natural gas station pressure regulating valve data.

[0013] A pipe ice blocking analysis module is configured to perform ice blocking analysis of the natural gas station pipe data, and obtain pipe ice blocking analysis results.

[0014] A pressure regulating valve ice blocking analysis module is configured to perform ice blocking analysis of the natural gas station pressure regulating valve data, and obtain pressure regulating valve ice blocking analysis results.

[0015] An ice blocking processing module is configured to control the natural gas station equipment to be opened according to the pipe ice blocking analysis results and the pressure regulating valve ice blocking analysis results.

[0016] Based on the above natural gas station ice blocking processing method, the present application further provides a natural gas station ice blocking processing system.

[0017] Another technical solution for solving the above technical problem is as follows: a natural gas station ice blocking processing system, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, when the processor executes the computer program, the natural gas station ice blocking processing method as described above is realized.

[0018] Based on the above natural gas station ice blocking processing method, the present application further provides a computer readable storage medium.

[0019] Another technical solution for solving the above technical problem is as follows: a computer readable storage medium, the computer readable storage medium stores a computer program, when the computer program is executed by a processor, the natural gas station ice blocking processing method as described above is realized.

[0020] The beneficial effects of the present application are: by importing the natural gas station pipeline data and the natural gas station pressure regulating valve data, the pipeline ice block analysis result of the natural gas station pipeline data is obtained through pipeline ice block analysis of the natural gas station pipeline data, the pressure regulating valve ice block analysis result of the natural gas station pressure regulating valve data is obtained through pressure regulating valve ice block analysis of the natural gas station pressure regulating valve data, and the natural gas station equipment is opened according to the pipeline ice block analysis result and the pressure regulating valve ice block analysis result, so that the pre-warning and pre-preventive condition adjustment of the ice block condition are realized, manual intervention is not required throughout the process, the logical research and early warning of the ice block are realized, the automation degree and reliability of the natural gas distribution pressure regulating system are greatly improved, and the problems of the traditional ice block judgment depending on personnel experience, the post-disposal, the little pre-warning, and the ice block disposal depending on the experience of on-site personnel are solved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 One of flowcharts of a natural gas station ice block processing method provided by an embodiment of the present application;

[0022] Figure 2 A module block diagram of a natural gas station ice block processing device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0023] The principles and characteristics of the present application are described below in combination with the drawings, and the examples are only used to explain the present application, and are not used to limit the scope of the present application.

[0024] Figure 1 A flowchart of a natural gas station ice block processing method provided by an embodiment of the present application.

[0025] As shown in Figure 1 A natural gas station ice block processing method includes the following steps:

[0026] Importing natural gas station pipeline data and natural gas station pressure regulating valve data;

[0027] Performing ice block analysis on the pipeline of the natural gas station pipeline data to obtain a pipeline ice block analysis result;

[0028] Performing ice block analysis on the pressure regulating valve of the natural gas station pressure regulating valve data to obtain a pressure regulating valve ice block analysis result;

[0029] Opening the natural gas station equipment according to the pipeline ice block analysis result and the pressure regulating valve ice block analysis result.

[0030] It should be understood that the imported natural gas station pipeline data and natural gas station pressure regulating valve data can be obtained from a SCADA data acquisition and monitoring control system.

[0031] It should be understood that the SCADA system refers to a SCADA (Supervisory Control and Data Acquisition) system, that is, a data acquisition and monitoring control system. The SCADA system is a computer-based DCS and power automation monitoring system; it has a wide range of applications and can be applied to data acquisition and monitoring control and process control in many fields such as power, metallurgy, petroleum, chemical industry, gas, railway and the like.

[0032] In the above embodiment, by importing the natural gas station pipeline data and the natural gas station pressure regulating valve data, the pipeline ice block analysis of the natural gas station pipeline data obtains the pipeline ice block analysis result, the pressure regulating valve ice block analysis of the natural gas station pressure regulating valve data obtains the pressure regulating valve ice block analysis result, and the natural gas station equipment is controlled to be opened according to the pipeline ice block analysis result and the pressure regulating valve ice block analysis result, realizing the pre-warning and pre-preventive condition adjustment of the ice block condition, without manual intervention throughout the process, realizing the logical research and warning of the ice block, and greatly improving the automation and reliability of the natural gas distribution pressure regulating system, solving the problems of traditional ice block judgment depending on personnel experience, post-disposal, less pre-warning, and ice block disposal depending on on-site personnel experience.

[0033] Optionally, as an embodiment of the present application, the natural gas station pipeline data includes pipeline water dew point temperature and pipeline natural gas temperature,

[0034] The process of performing the ice block analysis of the pipeline on the natural gas station pipeline data to obtain the pipeline ice block analysis result includes:

[0035] The pipeline water dew point temperature and the pipeline natural gas temperature are subtracted to obtain a pipeline temperature difference;

[0036] If the pipeline temperature difference is less than a preset temperature difference, a pipeline ice block warning information is generated, and the pipeline ice block warning information is taken as the pipeline ice block analysis result.

[0037] Preferably, the preset temperature difference can be 5.

[0038] It should be understood that the pipeline water dew point temperature t1 and the pipeline natural gas temperature t2 are collected, and when t2-t1<5℃, an ice block warning Alarm1 (that is, the pipeline ice block warning information) is triggered.

[0039] In the above embodiment, the ice block analysis of the pipeline on the natural gas station pipeline data obtains the pipeline ice block analysis result, solving the problems of traditional ice block judgment depending on personnel experience, post-disposal, less pre-warning, and ice block disposal depending on on-site personnel experience.

[0040] Optionally, as an embodiment of the present application, the natural gas station pressure regulating valve data comprises a plurality of working pressure regulating valve pressure differences in a current time interval, a plurality of working pressure regulating valve opening differences in the current time interval, a plurality of distribution flow rates in the current time interval, a plurality of monitoring pressure regulating valve pressure differences in the current time interval, a plurality of working pressure regulating valve pressure differences in a next time interval, a plurality of working pressure regulating valve opening differences in the next time interval, a plurality of distribution flow rates in the next time interval, and a plurality of monitoring pressure regulating valve pressure differences in the next time interval,

[0041] The process of performing ice blockage analysis on the natural gas station pressure regulating valve data to obtain pressure regulating valve ice blockage analysis results comprises:

[0042] The average working pressure regulating valve pressure difference in the current time interval and the average working pressure regulating valve pressure difference in the next time interval are obtained by performing average value calculation on the plurality of working pressure regulating valve pressure differences in the current time interval and the plurality of working pressure regulating valve pressure differences in the next time interval respectively through a first formula, and the first formula is:

[0043]

[0044] wherein Δp n is the average working pressure regulating valve pressure difference, n is the number of working pressure regulating valve pressure differences, Δp i is the i-th working pressure regulating valve pressure difference;

[0045] The average working pressure regulating valve opening difference in the current time interval and the average working pressure regulating valve opening difference in the next time interval are obtained by performing average value calculation on the plurality of working pressure regulating valve opening differences in the current time interval and the plurality of working pressure regulating valve opening differences in the next time interval respectively through a second formula, and the second formula is:

[0046]

[0047] wherein Δz m is the average working pressure regulating valve opening difference, m is the number of working pressure regulating valve opening differences, Δz j is the j-th working pressure regulating valve pressure difference;

[0048] The average distribution flow rate in the current time interval and the average distribution flow rate in the next time interval are obtained by performing average value calculation on the plurality of distribution flow rates in the current time interval and the plurality of distribution flow rates in the next time interval respectively through a third formula, and the third formula is:

[0049]

[0050] wherein ΔQ a is the average distribution flow rate, a is the number of distribution flow rates, ΔQ k is the k-th distribution flow rate;

[0051] if any two of the first judgment condition, the second judgment condition and the third judgment condition are satisfied, the working pressure regulating valve ice block early warning information is obtained, wherein the first judgment condition is that the difference between the average working pressure regulating valve pressure difference of the current time interval and the average working pressure regulating valve pressure difference of the next time interval is less than 0, the second judgment condition is that the difference between the average working pressure regulating valve opening difference of the current time interval and the average working pressure regulating valve opening difference of the next time interval is less than 0, and the third judgment condition is that the difference between the average distribution flow of the current time interval and the average distribution flow of the next time interval is greater than 0;

[0052] if the first judgment condition, the second judgment condition and the third judgment condition are simultaneously satisfied, the working pressure regulating valve ice block alarm information is obtained, and the working pressure regulating valve ice block alarm information is taken as the pressure regulating valve ice block analysis result;

[0053] the average value of the plurality of monitoring pressure regulating valve pressure differences of the current time interval and the next time interval is calculated by the fourth formula, to obtain the average monitoring pressure regulating valve pressure difference of the current time interval and the average monitoring pressure regulating valve pressure difference of the next time interval, and the fourth formula is:

[0054]

[0055] wherein Δz′ b is the average monitoring pressure regulating valve pressure difference, b is the number of monitoring pressure regulating valve pressure differences, and Δz′ u is the u-th monitoring pressure regulating valve pressure difference;

[0056] if any two of the second judgment condition, the third judgment condition and the fourth judgment condition are satisfied, the monitoring pressure regulating valve ice block early warning information is obtained, wherein the fourth judgment condition is that the difference between the average monitoring pressure regulating valve pressure difference of the current time interval and the average monitoring pressure regulating valve pressure difference of the next time interval is less than 0;

[0057] if the second judgment condition, the third judgment condition and the fourth judgment condition are simultaneously satisfied, the monitoring pressure regulating valve ice block alarm information is obtained, and the monitoring pressure regulating valve ice block alarm information is taken as the pressure regulating valve ice block analysis result.

[0058] Preferably, the current time interval and the next time interval are the same time interval.

[0059] It should be understood that the working pressure regulating valve ice block early warning information, the working pressure regulating valve ice block alarm information, the monitoring pressure regulating valve ice block early warning information and the monitoring pressure regulating valve ice block alarm information can be sent to the SCADA data acquisition and monitoring control system.

[0060] It should be understood that if any one of the first, second, third, or fourth judgment conditions is met, the natural gas station pipeline data and natural gas station pressure regulating valve data will be re-imported.

[0061] It should be understood that the differential pressure Δp across the pressure regulating valve is collected within a fixed time interval Δt. i (i.e., pressure difference of the working pressure regulating valve), opening difference of the working regulating valve Δz i (i.e., the difference in opening degree of the working pressure regulating valve), and the distribution flow rate ΔQ i To eliminate the influence of abnormal operating conditions, individual sensor failures, or valve body failures on the judgment logic, Δp is taken as n consecutive fixed time intervals Δt. n Δz n and ΔQ n (The values ​​of Δt and n can be set according to the actual site conditions), working pressure regulating valve Δp n The calculation formula is as follows:

[0062]

[0063] Where: Δpn——the calculated average pressure difference after taking n consecutive values ​​(i.e., the average working pressure regulating valve pressure difference);

[0064] Δpi — the differential pressure value at the i-th time, i = 1, 2, 3...

[0065] Δz n and ΔQ n The calculation method is the same as Δp n .

[0066] Specifically, the early warning for ice blockage in the working regulating valve: ①Δp n Increase (i.e., the first judgment condition); ② ΔZ n Increase (i.e., the second judgment condition); ③ ΔQ n The condition is reduced (i.e., the third judgment condition); when any two of the fluctuation trends ①, ②, and ③ are monitored, an ice blockage warning prompt is triggered for the working regulating valve (i.e., the ice blockage warning information for the working pressure regulating valve); when all three conditions ①, ②, and ③ are met, an ice blockage warning Alarm2 is generated (i.e., the ice blockage alarm information for the working pressure regulating valve), and at the same time, the SCADA system alarm is triggered to remind the on-duty personnel to pay attention to the distribution operation.

[0067] It should be understood that the differential pressure ΔZ across the pressure regulating valve is collected within a fixed time interval Δt. i (i.e., monitoring the pressure difference of the pressure regulating valve), and the opening difference Δz of the working regulating valve. i (i.e., the difference in opening degree of the working pressure regulating valve), and the distribution flow rate ΔQ i To eliminate the influence of abnormal operating conditions, individual sensor failures, or monitoring valve body failures on the judgment logic, ΔZ is taken as n consecutive fixed time intervals Δt.n , Δz n , and ΔQ n (Δt and n can be set according to actual conditions on site), working pressure regulating valve ΔZ n The calculation formula of ΔZ

[0068]

[0069] In the formula, ΔZ n is the calculation average pressure difference after continuous n times (i.e., average monitoring pressure regulating valve pressure difference);

[0070] ΔZ i is the i-th differential pressure value, i = 1, 2, 3...

[0071] Δz n and ΔQ n are calculated in the same way as ΔZ n .

[0072] Specifically, the ice blocking working condition early warning of the monitoring valve: ① ΔZ n increases (i.e., the fourth judgment condition); ② ΔZ n increases (i.e., the second judgment condition); ③ ΔQ n decreases (i.e., the third judgment condition); when any two of ①, ②, and ③ fluctuation trends are monitored, the ice blocking early warning of the monitoring regulating valve is triggered (i.e., the ice blocking early warning information of the monitoring pressure regulating valve); when all of ①, ②, and ③ are consistent, the ice blocking early warning Alarm 3 (i.e., the ice blocking alarm information of the monitoring pressure regulating valve) is generated, and the SCADA system alarm is triggered to prompt the on-duty personnel to pay attention to the sub-transmission working condition.

[0073] In the above embodiment, the ice blocking analysis of the pressure regulating valve is performed on the data of the natural gas station pressure regulating valve to obtain the pressure regulating valve ice blocking analysis result, the pre-warning and pre-preventive working condition adjustment of the ice blocking working condition are realized, no manual intervention is required throughout the process, the logical research and early warning of the ice blocking are realized, and the automation degree and reliability of the natural gas sub-transmission pressure regulating system are greatly improved.

[0074] Optionally, as an embodiment of the present application, the natural gas station equipment includes a natural gas heating equipment and a natural gas pressure regulating branch,

[0075] The process of controlling the natural gas station equipment to be turned on according to the pipeline ice blocking analysis result and the pressure regulating valve ice blocking analysis result includes:

[0076] If any one of the following conditions is met: the pipeline ice blocking analysis result is the pipeline ice blocking early warning information, the pressure regulating valve ice blocking analysis result is the working pressure regulating valve ice blocking alarm information, and the pressure regulating valve ice blocking analysis result is the monitoring pressure regulating valve ice blocking alarm information, the natural gas heating equipment is controlled to be turned on;

[0077] If the pressure regulating valve icing analysis result is a working pressure regulating valve icing alarm information or the pressure regulating valve icing analysis result is a monitoring pressure regulating valve icing alarm information, then the working pressure regulating valve distribution set pressure is imported;

[0078] If the working pressure regulating valve distribution set pressure is greater than the preset pressure regulating system pressure, then the natural gas pressure regulating branch is started; if not, then the working pressure regulating valve distribution set pressure and the preset pressure regulating pressure are added to obtain an updated working pressure regulating valve distribution set pressure, and the natural gas station pipeline data and the natural gas station pressure regulating valve data are imported again.

[0079] It should be understood that the working pressure regulating valve distribution set pressure can be obtained from the SCADA data acquisition and monitoring control system.

[0080] It should be understood that the updated working pressure regulating valve distribution set pressure can be sent to the SCADA data acquisition and monitoring control system.

[0081] It should be understood that the natural gas heating equipment is equipment for heating natural gas to meet different process requirements. Common types of natural gas heating equipment include:

[0082] 1. Water jacket furnace: a traditional heating equipment that heats natural gas through a water jacket.

[0083] 2. Vacuum furnace: uses vacuum technology to improve heating efficiency.

[0084] 3. Heat medium furnace: uses heat medium to exchange heat and indirectly heats natural gas.

[0085] 4. Electric heater: converts electrical energy into heat energy to heat natural gas.

[0086] 5. Catalytic infrared heating furnace: a new type of heating equipment that generates infrared radiation through the oxidation-reduction reaction of natural gas and oxygen to directly heat the pipeline.

[0087] The selection of these equipment depends on various factors such as heat load size, environmental conditions, economic efficiency, and environmental protection requirements. For example, for a heat load less than 50 kW, an electric heater is recommended. For a heat load in the range of 50-600 kW, if the land is limited or the carbon emissions of the heating furnace do not meet environmental protection requirements, an electric heater is also recommended. In addition, the new catalytic infrared heating furnace is gradually introduced into the long-distance pipeline industry due to its high efficiency and energy saving characteristics.

[0088] Specifically, the natural gas pressure regulating branch refers to a separate path in a natural gas distribution station or pressure regulating station that branches off from the main transmission pipeline to deliver natural gas to different users or in different directions. Each pressure regulating branch is equipped with its own pressure regulating equipment to ensure that the pressure of the natural gas meets the needs of users or complies with specific delivery standards before being delivered to users. The number of pressure regulating branches depends on the design of the distribution station and the demand of downstream users. Generally speaking, the number of pressure regulating branches is determined according to the following factors:

[0089] 1. User demand: The number of users served by the distribution station and their respective gas demand.

[0090] 2. Delivery capacity: The total delivery capacity of the distribution station and the design delivery capacity of each branch.

[0091] 3. Safety redundancy: Additional backup branches may be required to respond to emergency situations or maintenance work.

[0092] 4. Economy: Increasing the number of pressure regulating branches will increase initial investment and operating costs, which requires economic evaluation.

[0093] 5. Geographic layout: The geographical location of the distribution station and the distribution of users also affect the design of the pressure regulating branch.

[0094] In practical applications, the number of pressure regulating branches can range from a few to a dozen or more, depending on the comprehensive consideration of the above factors. For example, a small distribution station may have only 2-3 pressure regulating branches, while a large regional distribution station may need up to 10 or more pressure regulating branches to meet the delivery needs of different directions and scales.

[0095] Each pressure regulating branch usually includes the following components:

[0096] 1. Pressure regulator: Equipment for regulating the pressure of natural gas.

[0097] 2. Valve: Used to control the flow of natural gas and perform emergency shutdown.

[0098] 3. Flow meter: Used to measure the flow of natural gas through the branch.

[0099] 4. Safety device: Such as safety valve, for overpressure protection.

[0100] 5. Monitoring system: Used to monitor and control the operating status of the pressure regulating branch in real time.

[0101] The design and configuration of the pressure regulating branch need to consider technical, economic and safety factors to ensure the safe, reliable and efficient delivery of natural gas.

[0102] Specifically, when any one of Alarm 1 (i.e., the pipeline ice block analysis result is pipeline ice block early warning information), Alarm 2 (i.e., the pressure regulating valve ice block analysis result is working pressure regulating valve ice block alarm information) and Alarm 3 (i.e., the pressure regulating valve ice block analysis result is monitoring pressure regulating valve ice block alarm information) is triggered, the station heating system (i.e., the natural gas heating device) is automatically started.

[0103] Specifically, when Alarm 2 (i.e., the pressure regulating valve ice block analysis result is working pressure regulating valve ice block alarm information) or Alarm 3 (i.e., the pressure regulating valve ice block analysis result is monitoring pressure regulating valve ice block alarm information) is triggered, under the premise that the pressure regulating system set pressure (i.e., the working pressure regulating valve distribution set pressure) is not over limited, the working pressure regulating valve distribution set pressure is gradiently increased to reduce the ice block formation by reducing the pressure difference before and after pressure regulation; if the ice block early warning still exists after the gradiently adjusted set pressure, the pressure regulating system branch (i.e., the natural gas pressure regulating branch) switching process is automatically started.

[0104] In the above embodiment, the natural gas station device is controlled according to the pipeline ice block analysis result and the pressure regulating valve ice block analysis result, without manual intervention throughout the process, the ice block logical analysis and early warning are realized, and the automation degree and reliability of the natural gas distribution pressure regulating system are greatly improved.

[0105] Alternatively, as another embodiment of the present application, the present application can prewarn the ice block working condition of the pressure regulating system by detecting the fluctuation of the relevant process parameters on site, automatically adjust the operation parameters of the pressure regulating system through the pre-warning information linkage, and pre-remedy the possible ice block working condition to solve the problems that the traditional ice block judgment relies on personnel experience, the ice block treatment relies on on-site personnel experience, and the like. Through the present application, the pre-warning and pre-preventive working condition adjustment of the ice block working condition can be realized, without manual intervention throughout the process, the ice block logical analysis and early warning can be completed only by relying on the existing equipment on site, and the automation degree and reliability of the natural gas distribution pressure regulating system are greatly improved.

[0106] Alternatively, as another embodiment of the present application, the general idea of the present application is as follows: the process parameters of different devices are detected and calculated by the SCADA system, the operation working condition of the distribution station pressure regulating device is analyzed, when the ice block tendency is judged, the on-site SCADA system is timely pre-warned to remind the on-site operator to analyze and timely dispose the operation working condition; at the same time, the working parameters or process adjustment of the pressure regulating system are automatically optimized to slow down or inhibit the ice block generation, provide a certain reaction time for subsequent manual on-site intervention, inhibit the ice block in the formation stage as much as possible, and reduce the influence on the non-distributable interruption pressure regulating branch.

[0107] Optionally, as another embodiment of the present application, the present application can be applied to the ice blocking process monitoring of natural gas pipeline transportation stations. The present application is suitable for different types of stations and working conditions, can change the ice blocking treatment from post-treatment to pre-warning and pre-treatment, significantly improves the treatment efficiency, and can be applied in the whole industry.

[0108] Figure 2 A module block diagram of a natural gas station ice blocking treatment device provided for an embodiment of the present application.

[0109] Optionally, as another embodiment of the present application, as shown in Figure 2 A natural gas station ice blocking treatment device includes:

[0110] An import module is configured to import natural gas station pipeline data and natural gas station pressure regulating valve data.

[0111] A pipeline ice blocking analysis module is configured to perform pipeline ice blocking analysis on the natural gas station pipeline data to obtain pipeline ice blocking analysis results.

[0112] A pressure regulating valve ice blocking analysis module is configured to perform pressure regulating valve ice blocking analysis on the natural gas station pressure regulating valve data to obtain pressure regulating valve ice blocking analysis results.

[0113] An ice blocking treatment module is configured to control natural gas station equipment to be turned on according to the pipeline ice blocking analysis results and the pressure regulating valve ice blocking analysis results.

[0114] Optionally, as an embodiment of the present application, the natural gas station pipeline data includes pipeline water dew point temperature and pipeline natural gas temperature,

[0115] The pipeline ice blocking analysis module is specifically configured to:

[0116] The pipeline water dew point temperature is subtracted from the pipeline natural gas temperature to obtain a pipeline temperature difference.

[0117] If the pipeline temperature difference is less than a preset temperature difference, pipeline ice blocking warning information is generated, and the pipeline ice blocking warning information is taken as the pipeline ice blocking analysis results.

[0118] Optionally, as an embodiment of the present application, the natural gas station pressure regulating valve data includes a plurality of working pressure regulating valve pressure differences in a current time interval, a plurality of working pressure regulating valve opening differences in the current time interval, a plurality of distribution flow rates in the current time interval, a plurality of monitored pressure regulating valve pressure differences in the current time interval, a plurality of working pressure regulating valve pressure differences in a next time interval, a plurality of working pressure regulating valve opening differences in the next time interval, a plurality of distribution flow rates in the next time interval, and a plurality of monitored pressure regulating valve pressure differences in the next time interval,

[0119] The pressure regulating valve ice blocking analysis module is specifically configured to:

[0120] The average working pressure regulating valve pressure difference of the current time interval and the average working pressure regulating valve pressure difference of the next time interval are obtained by performing average value calculation on the plurality of working pressure regulating valve pressure differences of the current time interval and the plurality of working pressure regulating valve pressure differences of the next time interval respectively through a first formula, and the first formula is:

[0121]

[0122] wherein, Δp n is the average working pressure regulating valve pressure difference, n is the number of working pressure regulating valve pressure differences, Δp i is the i th working pressure regulating valve pressure difference;

[0123] The average working pressure regulating valve opening difference of the current time interval and the average working pressure regulating valve opening difference of the next time interval are obtained by performing average value calculation on the plurality of working pressure regulating valve opening differences of the current time interval and the plurality of working pressure regulating valve opening differences of the next time interval respectively through a second formula, and the second formula is:

[0124]

[0125] wherein, Δz m is the average working pressure regulating valve opening difference, m is the number of working pressure regulating valve opening differences, Δz j is the j th working pressure regulating valve pressure difference;

[0126] The average distribution flow of the current time interval and the average distribution flow of the next time interval are obtained by performing average value calculation on the plurality of distribution flows of the current time interval and the plurality of distribution flows of the next time interval respectively through a third formula, and the third formula is:

[0127]

[0128] wherein, ΔQ a is the average distribution flow, a is the number of distribution flows, ΔQ k is the k th distribution flow;

[0129] If any two of the first judgment condition, the second judgment condition and the third judgment condition are satisfied, the working pressure regulating valve ice blocking early warning information is obtained, wherein the first judgment condition is that the difference between the average working pressure regulating valve pressure difference of the current time interval and the average working pressure regulating valve pressure difference of the next time interval is less than 0, the second judgment condition is that the difference between the average working pressure regulating valve opening difference of the current time interval and the average working pressure regulating valve opening difference of the next time interval is less than 0, and the third judgment condition is that the difference between the average distribution flow of the current time interval and the average distribution flow of the next time interval is greater than 0;

[0130] If the first judgment condition, the second judgment condition and the third judgment condition are satisfied simultaneously, working pressure regulating valve ice block alarm information is obtained, and the working pressure regulating valve ice block alarm information is taken as the pressure regulating valve ice block analysis result;

[0131] The average monitoring pressure regulating valve pressure difference of the current time interval and the average monitoring pressure regulating valve pressure difference of the next time interval are obtained by performing average value calculation on the plurality of monitoring pressure regulating valve pressure differences of the current time interval and the plurality of monitoring pressure regulating valve pressure differences of the next time interval respectively through a fourth formula, the fourth formula being:

[0132]

[0133] wherein Δz′ b is the average monitoring pressure regulating valve pressure difference, b is the number of monitoring pressure regulating valve pressure differences, Δz′ u is the u-th monitoring pressure regulating valve pressure difference;

[0134] If any two of the second judgment condition, the third judgment condition and the fourth judgment condition are satisfied, monitoring pressure regulating valve ice block early warning information is obtained, wherein the fourth judgment condition is that the difference between the average monitoring pressure regulating valve pressure difference of the current time interval and the average monitoring pressure regulating valve pressure difference of the next time interval is less than 0;

[0135] If the second judgment condition, the third judgment condition and the fourth judgment condition are satisfied simultaneously, monitoring pressure regulating valve ice block alarm information is obtained, and the monitoring pressure regulating valve ice block alarm information is taken as the pressure regulating valve ice block analysis result.

[0136] Optionally, as an embodiment of the present application, the natural gas station device comprises a natural gas heating device and a natural gas pressure regulating branch,

[0137] The ice block processing module is specifically used for:

[0138] If any one of the following conditions is satisfied: the pipeline ice block analysis result is pipeline ice block early warning information, the pressure regulating valve ice block analysis result is working pressure regulating valve ice block alarm information, and the pressure regulating valve ice block analysis result is monitoring pressure regulating valve ice block alarm information, the natural gas heating device is controlled to be turned on.

[0139] If the pressure regulating valve ice block analysis result is working pressure regulating valve ice block alarm information or the pressure regulating valve ice block analysis result is monitoring pressure regulating valve ice block alarm information, the working pressure regulating valve branch distribution set pressure is introduced.

[0140] If the working pressure regulating valve branch distribution set pressure is greater than the preset pressure regulating system pressure, the natural gas pressure regulating branch is started; if not, the working pressure regulating valve branch distribution set pressure and the preset pressure regulating pressure are added to obtain an updated working pressure regulating valve branch distribution set pressure, and the natural gas station pipeline data and the natural gas station pressure regulating valve data are introduced again.

[0141] Optionally, another embodiment of the present application provides a natural gas station ice block processing system, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, when the processor executes the computer program, the natural gas station ice block processing method as described above is realized. The system can be a computer system.

[0142] Optionally, another embodiment of the present application provides a computer readable storage medium, the computer readable storage medium stores a computer program, when the computer program is executed by a processor, the natural gas station ice block processing method as described above is realized.

[0143] It should be noted that, in this paper, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0144] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be described here.

[0145] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0146] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or they can be distributed on a plurality of network units. According to actual needs, part or all of the units can be selected to achieve the purpose of the embodiment of the present application.

[0147] In addition, each function unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software function unit.

[0148] If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application, essentially or in the form of a contribution to the prior art, or all or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods in each embodiment of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

[0149] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method of ice block treatment at a natural gas station, characterized in that, The method comprises the following steps: Importing natural gas station pipeline data and natural gas station pressure regulating valve data; Performing ice blockage analysis on the natural gas station pipeline data to obtain pipeline ice blockage analysis results; Performing ice blockage analysis on the natural gas station pressure regulating valve data to obtain pressure regulating valve ice blockage analysis results; Controlling natural gas station equipment to start according to the pipeline ice blockage analysis results and the pressure regulating valve ice blockage analysis results; The natural gas station pressure regulating valve data comprises a plurality of working pressure regulating valve pressure differences in a current time interval, a plurality of working pressure regulating valve opening differences in the current time interval, a plurality of distribution flow rates in the current time interval, a plurality of monitoring pressure regulating valve pressure differences in the current time interval, a plurality of working pressure regulating valve pressure differences in a next time interval, a plurality of working pressure regulating valve opening differences in the next time interval, a plurality of distribution flow rates in the next time interval, and a plurality of monitoring pressure regulating valve pressure differences in the next time interval, The process of performing ice blockage analysis on the natural gas station pressure regulating valve data to obtain pressure regulating valve ice blockage analysis results comprises: Performing average value calculation on the plurality of working pressure regulating valve pressure differences in the current time interval and the plurality of working pressure regulating valve pressure differences in the next time interval respectively by a first formula to obtain an average working pressure regulating valve pressure difference in the current time interval and an average working pressure regulating valve pressure difference in the next time interval, wherein the first formula is: ， wherein, is the average working pressure regulating valve pressure difference, is the number of working pressure regulating valve pressure differences, is the first working pressure regulating valve pressure difference; Performing average value calculation on the plurality of working pressure regulating valve opening differences in the current time interval and the plurality of working pressure regulating valve opening differences in the next time interval respectively by a second formula to obtain an average working pressure regulating valve opening difference in the current time interval and an average working pressure regulating valve opening difference in the next time interval, wherein the second formula is: ， wherein, is the average working pressure regulating valve opening difference, is the number of working pressure regulating valve opening differences, is the first working pressure regulating valve pressure difference; Performing average value calculation on the plurality of distribution flow rates in the current time interval and the plurality of distribution flow rates in the next time interval respectively by a third formula to obtain an average distribution flow rate in the current time interval and an average distribution flow rate in the next time interval, wherein the third formula is: ， wherein, is the average split flow rate, is the number of split flow rates, is the i-th split flow rate, th split flow rate; If any two of a first judgment condition, a second judgment condition and a third judgment condition are satisfied, working pressure regulating valve ice blockage early warning information is obtained, wherein the first judgment condition is that a difference between the average working pressure regulating valve pressure difference in the current time interval and the average working pressure regulating valve pressure difference in the next time interval is less than 0, the second judgment condition is that a difference between the average working pressure regulating valve opening difference in the current time interval and the average working pressure regulating valve opening difference in the next time interval is less than 0, and the third judgment condition is that a difference between the average distribution flow rate in the current time interval and the average distribution flow rate in the next time interval is greater than 0; If the first judgment condition, the second judgment condition and the third judgment condition are simultaneously satisfied, working pressure regulating valve ice blockage alarm information is obtained, and the working pressure regulating valve ice blockage alarm information is taken as the pressure regulating valve ice blockage analysis results; Performing average value calculation on the plurality of monitoring pressure regulating valve pressure differences in the current time interval and the plurality of monitoring pressure regulating valve pressure differences in the next time interval respectively by a fourth formula to obtain an average monitoring pressure regulating valve pressure difference in the current time interval and an average monitoring pressure regulating valve pressure difference in the next time interval, wherein the fourth formula is: ， wherein, is the average monitored pressure differential of the pressure regulating valve, is the number of monitored pressure differentials of the pressure regulating valve, is the first monitored pressure differential of the pressure regulating valve; If any two of the second judgment condition, the third judgment condition and the fourth judgment condition are met, ice blocking early warning information of the monitoring pressure regulating valve is obtained, wherein the fourth judgment condition is that the difference between the average pressure difference of the monitoring pressure regulating valve in the current time interval and the average pressure difference of the monitoring pressure regulating valve in the next time interval is less than 0; If the second judgment condition, the third judgment condition and the fourth judgment condition are met at the same time, ice blocking alarm information of the monitoring pressure regulating valve is obtained, and the ice blocking alarm information of the monitoring pressure regulating valve is taken as the ice blocking analysis result of the pressure regulating valve.

2. The natural gas station ice block treatment method of claim 1, wherein, The pipeline data of the natural gas station comprises a pipeline water dew point temperature and a pipeline natural gas temperature, The process of performing ice blocking analysis on the pipeline data of the natural gas station to obtain a pipeline ice blocking analysis result comprises: The pipeline water dew point temperature is subtracted from the pipeline natural gas temperature to obtain a pipeline temperature difference; If the pipeline temperature difference is less than a preset temperature difference, pipeline ice blocking early warning information is generated, and the pipeline ice blocking early warning information is taken as the pipeline ice blocking analysis result.

3. The natural gas station ice block treatment method of claim 2, wherein, The equipment of the natural gas station comprises a natural gas heating device and a natural gas pressure regulating branch, The process of controlling the natural gas station equipment to be turned on according to the pipeline ice blocking analysis result and the pressure regulating valve ice blocking analysis result comprises: If any one of the following conditions is met, the natural gas heating device is controlled to be turned on: the pipeline ice blocking analysis result is pipeline ice blocking early warning information, the pressure regulating valve ice blocking analysis result is working pressure regulating valve ice blocking alarm information, and the pressure regulating valve ice blocking analysis result is monitoring pressure regulating valve ice blocking alarm information; If the pressure regulating valve ice blocking analysis result is working pressure regulating valve ice blocking alarm information or the pressure regulating valve ice blocking analysis result is monitoring pressure regulating valve ice blocking alarm information, a working pressure regulating valve distribution set pressure is introduced; If the working pressure regulating valve distribution set pressure is greater than a preset pressure regulating system pressure, the natural gas pressure regulating branch is controlled to be started; otherwise, the working pressure regulating valve distribution set pressure is added to a preset regulating pressure to obtain an updated working pressure regulating valve distribution set pressure, and the pipeline data of the natural gas station and the pressure regulating valve data of the natural gas station are introduced again.

4. A natural gas station ice block treatment apparatus, characterized by, It comprises: An introduction module for introducing pipeline data of a natural gas station and pressure regulating valve data of the natural gas station; A pipeline ice blocking analysis module for performing ice blocking analysis on the pipeline data of the natural gas station to obtain a pipeline ice blocking analysis result; A pressure regulating valve ice blocking analysis module for performing ice blocking analysis on the pressure regulating valve data of the natural gas station to obtain a pressure regulating valve ice blocking analysis result; An ice blocking processing module for controlling natural gas station equipment to be turned on according to the pipeline ice blocking analysis result and the pressure regulating valve ice blocking analysis result; The pressure regulating valve data of the natural gas station comprises a plurality of working pressure regulating valve pressure differences in a current time interval, a plurality of working pressure regulating valve opening differences in the current time interval, a plurality of distribution flow rates in the current time interval, a plurality of monitoring pressure regulating valve pressure differences in the current time interval, a plurality of working pressure regulating valve pressure differences in a next time interval, a plurality of working pressure regulating valve opening differences in the next time interval, a plurality of distribution flow rates in the next time interval and a plurality of monitoring pressure regulating valve pressure differences in the next time interval, The pressure regulating valve ice blocking analysis module is specifically used for: The first formula is: ， wherein, is the average working pressure regulating valve pressure difference, is the number of working pressure regulating valve pressure differences, is the first working pressure regulating valve pressure difference; The second formula is: ， wherein, is the average working pressure regulating valve opening difference, is the number of working pressure regulating valve opening differences, is the first working pressure regulating valve pressure difference; The third formula is: ， in, To distribute the average flow rate, The amount of transmission traffic, For the first Individual transmission flow; If any two of the first judgment condition, the second judgment condition and the third judgment condition are met, working pressure regulating valve ice blocking early warning information is obtained, wherein the first judgment condition is that the difference between the average working pressure regulating valve pressure difference of the current time interval and the average working pressure regulating valve pressure difference of the next time interval is less than 0, the second judgment condition is that the difference between the average working pressure regulating valve opening difference of the current time interval and the average working pressure regulating valve opening difference of the next time interval is less than 0, and the third judgment condition is that the difference between the average distribution flow of the current time interval and the average distribution flow of the next time interval is greater than 0; If the first judgment condition, the second judgment condition and the third judgment condition are all met, working pressure regulating valve ice blocking alarm information is obtained, and the working pressure regulating valve ice blocking alarm information is taken as the pressure regulating valve ice blocking analysis result. The fourth formula is: ， wherein, is the average monitored pressure differential of the pressure regulating valve, is the number of monitored pressure differentials of the pressure regulating valve, is the first monitored pressure differential of the pressure regulating valve; If any two of the second judgment condition, the third judgment condition and the fourth judgment condition are met, monitoring pressure regulating valve ice blocking early warning information is obtained, wherein the fourth judgment condition is that the difference between the average monitoring pressure regulating valve pressure difference of the current time interval and the average monitoring pressure regulating valve pressure difference of the next time interval is less than 0. If the second judgment condition, the third judgment condition and the fourth judgment condition are all met, monitoring pressure regulating valve ice blocking alarm information is obtained, and the monitoring pressure regulating valve ice blocking alarm information is taken as the pressure regulating valve ice blocking analysis result.

5. The natural gas station ice block treatment apparatus according to claim 4, characterized by The natural gas station pipeline data includes pipeline water dew point temperature and pipeline natural gas temperature, The pipeline ice blocking analysis module is specifically used for: The pipeline water dew point temperature and the pipeline natural gas temperature are subjected to difference calculation to obtain a pipeline temperature difference value. If the pipeline temperature difference value is less than a preset temperature difference value, pipeline ice blocking early warning information is generated, and the pipeline ice blocking early warning information is taken as a pipeline ice blocking analysis result.

6. The natural gas station ice block treatment apparatus according to claim 5, wherein The natural gas station equipment includes a natural gas heating device and a natural gas pressure regulating branch, The ice blockage processing module is specifically used for: If any one of the following conditions is met: the pipeline ice blockage analysis result is pipeline ice blockage early warning information, the pressure regulating valve ice blockage analysis result is working pressure regulating valve ice blockage alarm information, and the pressure regulating valve ice blockage analysis result is monitoring pressure regulating valve ice blockage alarm information, the natural gas heating device is controlled to be turned on; If the pressure regulating valve ice blockage analysis result is working pressure regulating valve ice blockage alarm information or the pressure regulating valve ice blockage analysis result is monitoring pressure regulating valve ice blockage alarm information, the working pressure regulating valve distribution set pressure is imported; It is judged whether the working pressure regulating valve distribution set pressure is greater than a preset pressure regulating system pressure, if yes, the natural gas pressure regulating branch is controlled to be started; If not, the working pressure regulating valve distribution set pressure and the preset pressure regulating pressure are added to obtain an updated working pressure regulating valve distribution set pressure, and the natural gas station pipeline data and the natural gas station pressure regulating valve data are imported again.

7. A natural gas station ice block treatment system comprising a memory, a processor, and a computer program stored in the memory and operable on the processor, wherein, When the computer program is executed by the processor, the natural gas station ice blockage processing method of any one of claims 1 to 3 is implemented.

8. A computer-readable storage medium storing a computer program, the computer-readable storage medium comprising: When the computer program is executed by the processor, the natural gas station ice blockage processing method of any one of claims 1 to 3 is implemented.

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