CN111289595A - Natural gas pipeline monitoring system and method - Google Patents
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- CN111289595A CN111289595A CN202010166777.0A CN202010166777A CN111289595A CN 111289595 A CN111289595 A CN 111289595A CN 202010166777 A CN202010166777 A CN 202010166777A CN 111289595 A CN111289595 A CN 111289595A
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 238000012544 monitoring process Methods 0.000 title claims abstract description 94
- 239000003345 natural gas Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000012546 transfer Methods 0.000 claims abstract description 42
- 238000005260 corrosion Methods 0.000 claims description 10
- 230000007797 corrosion Effects 0.000 claims description 10
- 238000005265 energy consumption Methods 0.000 claims description 9
- 238000004210 cathodic protection Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 abstract description 5
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
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- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
- C23F13/22—Monitoring arrangements therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
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Abstract
The invention provides a natural gas pipeline monitoring system and a method, and belongs to the technical field of pipeline engineering monitoring. The system comprises: a monitoring platform, a cathode protection pile and a constant potential rectifier; the cathode protection pile is arranged on the side of the natural gas output pipeline, and the constant potential rectifier is arranged at the natural gas transfer station; the monitoring platform is used for receiving pipeline potential data sent by the cathode protection pile and transfer station potential data sent by the potentiostat; according to the pipeline potential data, the potential data of the transfer station and a preset algorithm, analyzing and acquiring the monitoring data of the natural gas pipeline, wherein the monitoring data comprises: current status data of the natural gas pipeline, and usage prediction data. The invention can realize real-time monitoring of pipelines at each position, complete the whole process of monitoring, analyzing, predicting and evaluating and increase the integrity of pipeline monitoring.
Description
Technical Field
The invention relates to the technical field of pipeline engineering monitoring, in particular to a natural gas pipeline monitoring system and a natural gas pipeline monitoring method.
Background
Currently, with the rapid development of the pipeline engineering industry, various data of the pipeline needs to be monitored, analyzed, predicted and evaluated.
In the prior art, maintenance personnel usually need to perform manual detection regularly. However, the prior art cannot monitor in real time, and cannot timely find and process the generated potential safety hazard problem; moreover, the manual detection needs to consume a large amount of manpower and material resources, and the cost is high. The unified analysis processing can not be carried out in time after the information of the pipeline is obtained, so that the unified and rapid monitoring, analysis, prediction and evaluation flow is not existed in the whole monitoring process of the pipeline.
Disclosure of Invention
The invention aims to provide a natural gas pipeline monitoring system and a natural gas pipeline monitoring method, which can realize real-time monitoring of pipelines at various positions, complete the overall process of monitoring, analysis, prediction and evaluation and increase the integrity of pipeline monitoring.
The embodiment of the invention is realized by the following steps:
in one aspect of the embodiments of the present invention, a natural gas pipeline monitoring system is provided, which includes: a monitoring platform, a cathode protection pile and a constant potential rectifier; the cathodic protection pile is arranged on the side of the natural gas output pipeline, and the constant potential rectifier is arranged in the natural gas transfer station.
The monitoring platform is used for receiving pipeline potential data sent by the cathode protection pile and transfer station potential data sent by the potentiostat; according to the pipeline potential data, the potential data of the transfer station and a preset algorithm, analyzing and acquiring the monitoring data of the natural gas pipeline, wherein the monitoring data comprises: current status data of the natural gas pipeline, and usage prediction data.
Optionally, the monitoring platform is further configured to determine whether the pipeline potential data and the transfer station potential data meet a preset condition according to the pipeline potential data, the transfer station potential data and the preset condition;
if at least one of the pipeline potential data and the transfer station potential data does not accord with the preset condition, alarm information is generated and displayed, and the alarm information comprises data which do not accord with the preset condition.
Optionally, the monitoring platform is further configured to receive an alarm information completion indication input by a user, where the alarm information completion indication includes: identification of alarm information;
and marking the corresponding alarm information as a completion state according to the alarm information completion indication.
Optionally, the usage prediction data comprises one or more of: the service life prediction information, the corrosion rate information and the potentiostat energy consumption data of the natural gas pipeline.
Optionally, the monitoring platform is further configured to receive a query instruction, where the query instruction includes: the information of the pipeline to be inquired; and acquiring monitoring data corresponding to the to-be-inquired pipeline information according to the inquiry instruction.
Optionally, in another aspect of the embodiments of the present invention, a natural gas pipeline monitoring method is provided, including:
receiving pipeline potential data sent by the cathode protection pile and transfer station potential data sent by the potentiostat;
according to the pipeline potential data, the potential data of the transfer station and a preset algorithm, analyzing and acquiring the monitoring data of the natural gas pipeline, wherein the monitoring data comprises: current status data of the natural gas pipeline, and usage prediction data.
Optionally, the method further comprises:
judging whether the pipeline potential data and the transfer station potential data meet preset conditions or not according to the pipeline potential data, the transfer station potential data and the preset conditions;
if at least one of the pipeline potential data and the transfer station potential data does not accord with the preset condition, alarm information is generated and displayed, and the alarm information comprises data which do not accord with the preset condition.
Optionally, if at least one of the pipeline potential data and the transit station potential data does not meet the preset condition, after the alarm information is generated and displayed, the method further includes:
receiving an alarm information completion indication input by a user, wherein the alarm information completion indication comprises: identification of alarm information;
and marking the corresponding alarm information as a completion state according to the alarm information completion indication.
Optionally, the usage prediction data comprises one or more of: the service life prediction information, the corrosion rate information and the potentiostat energy consumption data of the natural gas pipeline.
Optionally, the method further comprises:
receiving a query instruction, wherein the query instruction comprises: the information of the pipeline to be inquired;
and acquiring monitoring data corresponding to the to-be-inquired pipeline information according to the inquiry instruction.
The embodiment of the invention has the beneficial effects that:
according to the natural gas pipeline monitoring system and method provided by the embodiment of the invention, the pipeline potential data sent by the cathode protection pile and the transfer station potential data sent by the potentiostat can be received by the monitoring platform, and then the potential data are monitored, analyzed, predicted and evaluated, so that the real-time monitoring of the pipeline can be realized, the integrity of the pipeline monitoring is increased, the cost can be saved and the consumption can be reduced compared with manual detection.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a natural gas pipeline monitoring system according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a method for monitoring a natural gas pipeline according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of an alarm method according to an embodiment of the present invention;
FIG. 4 is another schematic flow chart of an alarm method according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating a query method according to an embodiment of the present invention.
Icon: 100-a monitoring platform; 200-cathode protective piles; 300-potentiostat.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Fig. 1 is a schematic structural diagram of a natural gas pipeline monitoring system according to an embodiment of the present invention, and referring to fig. 1, the system includes: a monitoring platform 100, a cathode protection pile 200 and a constant potential rectifier 300; the cathodic protection pile is arranged on the side of the natural gas output pipeline, and the constant potential rectifier is arranged in the natural gas transfer station.
It should be noted that the monitoring platform 100 may be a server platform, and may interactively communicate with a client disposed in a user working scene, and a user may perform a series of operations such as control, monitoring, query, and the like on the monitoring platform 100 through the client, and optionally, the client may be a display interactive interface; the cathode protection pile 200 may be a protection pile having communication and Positioning functions, may be positioned according to a GPS (Global Positioning System) System or a BDS (BeiDou Navigation Satellite System), and may communicate through various types of network communication methods, specifically, may select a method in which a communication signal is superior in an environmental position where the protection pile is located to communicate; potentiostat 300 may be located in a transfer station for natural gas or other types of stations, and may send the collected information directly to monitoring platform 100 through an internal system in the station in which it is located.
The monitoring platform 100 is used for receiving pipeline potential data sent by the cathode protection pile 200 and transfer station potential data sent by the potentiostat 300; according to the pipeline potential data, the potential data of the transfer station and a preset algorithm, analyzing and acquiring the monitoring data of the natural gas pipeline, wherein the monitoring data comprises: current status data of the natural gas pipeline, and usage prediction data.
It should be noted that the monitoring platform 100 may have a plurality of network communication methods for performing communication interaction with the cathode protection piles 200 of different communication methods. The potential data of the pipeline can comprise various types of pipeline potential information such as natural potential, protective potential and the like on the pipeline; the station potential data may include power information such as operating voltage, current, and potential of the pipeline operating in the station. The preset algorithm may include an algorithm for calculating and using the prediction data, such as a pipeline life prediction algorithm, a pipeline corrosion rate prediction algorithm, a potentiostat energy consumption prediction algorithm, and the like. In the monitoring data, the current state data includes data directly transmitted by the cathode protection pile 200 and the potentiostat 300, and information data such as the transmission times of the pipeline information and the transmission position of the pipeline information recorded in the background; the usage prediction data may be prediction data obtained according to the above-mentioned preset algorithm.
According to the natural gas pipeline monitoring system provided by the embodiment of the invention, the pipeline potential data sent by the cathode protection pile and the transfer station potential data sent by the potentiostat can be received by the monitoring platform, and then the potential data are monitored, analyzed, predicted and evaluated, so that the real-time monitoring of the pipeline can be realized, the integrity of the pipeline monitoring is increased, and the cost and the consumption can be saved compared with manual detection.
Optionally, the monitoring platform 100 is further configured to determine whether the pipeline potential data and the transfer station potential data meet a preset condition according to the pipeline potential data, the transfer station potential data, and the preset condition; if at least one of the pipeline potential data and the transfer station potential data does not accord with the preset condition, alarm information is generated and displayed, and the alarm information comprises data which do not accord with the preset condition.
It should be noted that the preset condition may be that the pipeline potential data or the transfer station potential data reaches a certain condition, specifically, for example, when the natural potential on the pipeline reaches a first preset value in the pipeline potential data, for example, the first preset value is 100V, and when the natural potential on the pipeline reaches or exceeds 100V; or when the protection potential reaches a second preset value, for example, the second preset value is 150V, and when the protection potential reaches or exceeds 150V, alarm information can be generated and displayed. Correspondingly, when the potential data in the station reaches a third preset value, for example, the third preset value is 90V, and when the potential data in the station reaches or exceeds 90V, alarm information can be generated and displayed. It should be noted that the preset condition may be set according to a specific condition in the station, and is not limited herein, and the preset value is only an optional example.
In addition, the alarm information can be displayed through the display interactive interface, a user can acquire the alarm information through the interface, and the alarm information comprises but is not limited to character alarm information and acousto-optic alarm information.
If the alarm completion indication is not received within a certain preset time range, the alarm information can be sent out repeatedly until the alarm completion indication is received.
Optionally, the monitoring platform 100 is further configured to receive an alarm information completion indication input by a user, where the alarm information completion indication includes: identification of alarm information; and marking the corresponding alarm information as a completion state according to the alarm information completion indication.
It should be noted that the identifier of the alarm information may be the alarm information corresponding to the alarm information completion indication, and may further include an information sending source corresponding to the alarm information, that is, a cathode protection pile or a potentiostat that sends the alarm information. After the user completes repairing the corresponding information sending source according to the alarm information, the alarm information completion instruction may be sent to the monitoring platform 100, and specifically, the user may mark the displayed state of the alarm information as a completion state through the display interactive interface.
Optionally, the usage prediction data comprises one or more of: the service life prediction information, the corrosion rate information and the potentiostat energy consumption data of the natural gas pipeline.
It should be noted that the specific calculation method of the service life prediction information of the natural gas pipeline is as follows:
RL＝C×SM×t/GR；
SM ═ (calculated failure pressure/yield pressure) - (MAOP/yield pressure);
where RL is the predicted pipeline service life, unit: year; c is a correction coefficient, and C is 0.85; SM is a safety margin; MAOP is the allowable stress of the pipeline section, unit: MPa; GR is corrosion rate, unit: mm/year; t is the thickness of the pipe, unit: mm.
The calculated failure pressure, yield pressure, may be known data of the monitoring platform 100.
The specific calculation for corrosion rate is as follows:
GR＝Depth/(InspDate-CommDate)；
wherein Depth is the corrosion Depth of the pipeline, unit: mm; instdate is the date of detection of the pipeline, unit: year; CommDate is the pipeline's on-stream date, in units: and (5) year.
The energy consumption of the potentiostat can be directly obtained from an ammeter connected with the potentiostat or obtained from the potentiostat with the energy consumption metering function.
Optionally, the monitoring platform 100 is further configured to receive a query instruction, where the query instruction includes: the information of the pipeline to be inquired; and acquiring monitoring data corresponding to the to-be-inquired pipeline information according to the inquiry instruction.
It should be noted that the to-be-queried pipe information specifically includes: and inquiring the potential, voltage and current information commands of the potentiostat, and inquiring the alternating current interference potential, natural potential overrun, outage potential overrun and protection potential information commands of the cathode protection pile.
It should be noted that, after receiving the data sent by the cathode protective pile 200 and the potentiostat 300, the monitoring platform 100 may store the data in a database for storing the data, and when receiving the query instruction, the monitoring platform 100 may specifically query the corresponding type of pipeline information, such as the sent pipeline potential information, the transit station potential information, and other monitoring data obtained in a communication manner, from the database according to the query instruction. After the data of the types are inquired from the database, the inquired result can be displayed in the interface through the display interactive interface, and the user can acquire the monitoring data corresponding to the pipeline information to be inquired through the display interactive interface.
Besides the monitoring data, the database can also store pre-stored information such as the specific position (such as longitude and latitude) of the pipeline, the length of the pipeline, the thickness of the pipeline and the like, or the alarm data information on the day and the historical alarm data information obtained through the alarm function, and the user can also obtain the information of the types through the display interactive interface.
In the process of querying the pre-stored information, the user may input specific information to be queried, such as the identifier of the pipeline, the location of the pipeline, etc., into the monitoring platform 100 through the display interactive interface. Specifically, a "pipeline in X city" may be input, the monitoring platform may generate a corresponding query instruction, acquire pipeline data information with a "pipeline in X city" identifier from the database, and display the pipeline data information with the identifier in a list or an image or the like by displaying an interactive interface.
In the process of inquiring historical alarm data, inquiry conditions such as alarm types, start and end dates, key monitoring points and the like can be set for inquiry, all potentiostat and cathode protection pile alarm data can be inquired according to the processing state and the start and end dates of alarm, and the inquiry result can be displayed in a paging mode through a list.
After the query result is obtained, related report information can be formulated and derived, and various report information such as historical alarm information and monitoring information of the cathode protection pile, monitoring information of historical alarm information of the potentiostat and the like can be displayed respectively.
Fig. 2 is a schematic flow chart of a natural gas pipeline monitoring method according to an embodiment of the present invention, referring to fig. 2, the method includes:
s10: and receiving the pipeline potential data sent by the cathode protection pile and the transfer station potential data sent by the potentiostat.
S20: and analyzing and acquiring the monitoring data of the natural gas pipeline according to the pipeline potential data, the potential data of the transfer station and a preset algorithm.
Wherein, the monitoring data includes: current status data of the natural gas pipeline, and usage prediction data.
Fig. 3 is a schematic flow chart of an alarm method according to an embodiment of the present invention, and please refer to fig. 3, the method includes:
s30: and judging whether the pipeline potential data and the transfer station potential data meet the preset conditions or not according to the pipeline potential data, the transfer station potential data and the preset conditions.
S40: and if at least one of the pipeline potential data and the transfer station potential data does not accord with the preset condition, generating and displaying alarm information.
Wherein, the alarm information comprises data which do not accord with the preset condition.
Fig. 4 is another schematic flow chart of the alarm method according to the embodiment of the present invention, referring to fig. 4, if at least one of the pipeline potential data and the relay station potential data does not meet the preset condition, after generating and displaying the alarm information, the method further includes:
s50: and receiving an alarm information completion indication input by a user.
Wherein, the warning information is accomplished to instruct and is included: and (5) identification of alarm information.
S60: and marking the corresponding alarm information as a completion state according to the alarm information completion indication.
Optionally, the usage prediction data comprises one or more of: the service life prediction information, the corrosion rate information and the potentiostat energy consumption data of the natural gas pipeline.
Fig. 5 is a schematic flowchart of a query method according to an embodiment of the present invention, with reference to fig. 5, the method includes:
s70: a query instruction is received.
Wherein the query instruction comprises: and (4) the pipeline information to be inquired.
S80: and acquiring monitoring data corresponding to the to-be-inquired pipeline information according to the inquiry instruction.
According to the natural gas pipeline monitoring method provided by the embodiment of the invention, the pipeline potential data sent by the cathode protection pile and the transfer station potential data sent by the potentiostat can be received by the monitoring platform, and then the potential data are monitored, analyzed, predicted and evaluated, so that the real-time monitoring of the pipeline can be realized, the integrity of the pipeline monitoring is increased, and the cost and the consumption can be saved compared with manual detection.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A natural gas pipeline monitoring system, the system comprising: a monitoring platform, a cathode protection pile and a constant potential rectifier; the cathodic protection pile is arranged on the side of a natural gas output pipeline, and the constant potential rectifier is arranged in a natural gas transfer station;
the monitoring platform is used for receiving pipeline potential data sent by the cathodic protection pile and transfer station potential data sent by the potentiostat;
analyzing and acquiring natural gas pipeline monitoring data according to the pipeline potential data, the transfer station potential data and a preset algorithm, wherein the monitoring data comprises: current status data of the natural gas pipeline, and usage prediction data.
2. The system of claim 1, wherein the monitoring platform is further configured to determine whether the pipe potential data and the transfer station potential data satisfy a preset condition according to the pipe potential data, the transfer station potential data, and a preset condition;
and if at least one of the pipeline potential data and the transfer station potential data is not in accordance with a preset condition, generating and displaying alarm information, wherein the alarm information comprises data which are not in accordance with the preset condition.
3. The system of claim 2, wherein the monitoring platform is further configured to receive an alert information completion indication input by a user, the alert information completion indication comprising: identification of alarm information;
and marking the corresponding alarm information as a completion state according to the alarm information completion indication.
4. The system of claim 1, wherein the usage prediction data includes one or more of: the service life prediction information, the corrosion rate information and the potentiostat energy consumption data of the natural gas pipeline.
5. The system of claim 1, wherein the monitoring platform is further configured to receive a query instruction, the query instruction comprising: the information of the pipeline to be inquired; and acquiring monitoring data corresponding to the to-be-inquired pipeline information according to the inquiry instruction.
6. A method for monitoring a natural gas pipeline, the method being applied to a monitoring platform in the system according to any one of claims 1 to 5, the method comprising:
receiving pipeline potential data sent by the cathodic protection pile and transfer station potential data sent by the potentiostat;
analyzing and acquiring natural gas pipeline monitoring data according to the pipeline potential data, the transfer station potential data and a preset algorithm, wherein the monitoring data comprises: current status data of the natural gas pipeline, and usage prediction data.
7. The method of claim 6, wherein the method further comprises:
judging whether the pipeline potential data and the transfer station potential data meet preset conditions or not according to the pipeline potential data, the transfer station potential data and the preset conditions;
and if at least one of the pipeline potential data and the transfer station potential data is not in accordance with a preset condition, generating and displaying alarm information, wherein the alarm information comprises data which are not in accordance with the preset condition.
8. The method of claim 7, wherein if at least one of the pipe potential data and the transfer station potential data does not meet a preset condition, after generating and displaying an alarm message, the method further comprises:
receiving an alarm information completion indication input by a user, wherein the alarm information completion indication comprises: identification of alarm information;
and marking the corresponding alarm information as a completion state according to the alarm information completion indication.
9. The method of claim 6, wherein the usage prediction data comprises one or more of: the service life prediction information, the corrosion rate information and the potentiostat energy consumption data of the natural gas pipeline.
10. The method of claim 6, wherein the method further comprises:
receiving a query instruction, wherein the query instruction comprises: the information of the pipeline to be inquired;
and acquiring monitoring data corresponding to the to-be-inquired pipeline information according to the inquiry instruction.
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