CN116664114B - Power plant overhaul system and method - Google Patents
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Abstract
The invention provides a power plant overhaul system and a method, which relate to the technical field of overhaul systems and comprise the following steps: acquiring real-time operation information of each working area of the power plant to obtain a corresponding real-time working state; based on the real-time working state and the historical working state, corresponding defect factors are obtained, and corresponding maintenance strategies are matched; based on all maintenance strategies of the same working area and the correlation influence among the maintenance strategies, a preset maintenance effect is obtained; based on the preset overhaul effect and the actual overhaul effect, an overhaul work log is obtained and overhaul grading is carried out on the overhaul process. The defect that needs to overhaul is accurately found, the overhaul efficiency of the power plant is improved, and therefore the safe production and the economic benefit of the power plant are guaranteed.
Description
Technical Field
The invention relates to the technical field of power plant overhaul, in particular to a power plant overhaul system and method.
Background
At present, with the development of scientific technology, the living standard and productivity of people are greatly improved, and the people cannot be separated from electric energy. The electric power energy is used as an important energy source for guaranteeing the production and life of people, the overhaul of the power plant is an important component part of the production management of the power plant, and whether the power plant can run safely and reliably directly influences the production and life standard of people. The equipment and facilities of the power plant work under the severe environmental conditions of high temperature and high pressure, abrasion, corrosion, vibration and the like, and the phenomena of scaling, slagging, ash blocking, corrosion and the like of a heating surface can influence the operation safety and economy of the equipment due to the abrasion and deformation of parts, reduced tightness and shortened service life of materials.
Accordingly, the present invention provides a power plant overhaul system and method.
Disclosure of Invention
The invention provides a power plant overhaul system and method, which are used for obtaining corresponding real-time working states by analyzing real-time operation information of each working area of a power plant, analyzing the real-time working states together with historical working states to obtain corresponding defect factors, matching corresponding overhaul strategies, obtaining preset overhaul effects by associating influence among all overhaul strategies and overhaul strategies of the same working area, analyzing the actual overhaul effects, obtaining overhaul work logs, carrying out overhaul grading on overhaul processes, accurately searching defects needing overhaul of the power plant, improving the overhaul efficiency of the power plant, and guaranteeing safe production and economic benefits of the power plant.
The invention provides a power plant overhaul system, comprising:
the state acquisition module is used for: acquiring real-time operation information of each working area of the power plant to obtain a corresponding real-time working state;
and a strategy matching module: based on the real-time working state and the historical working state, corresponding defect factors are obtained, and corresponding maintenance strategies are matched;
the effect acquisition module is used for: based on all maintenance strategies of the same working area and the correlation influence among the maintenance strategies, a preset maintenance effect is obtained;
a process evaluation module: based on the preset overhaul effect and the actual overhaul effect, an overhaul work log is obtained and overhaul grading is carried out on the overhaul process.
Preferably, the present invention provides a power plant overhaul system, and a state acquisition module, including:
an image construction unit: acquiring real-time operation information of each working area of the power plant at each moment, and constructing a real-time operation information graph;
an image capturing unit: based on the operation period of the working area corresponding to the real-time operation information graph, intercepting a first information graph from the end of the last complete period of the real-time operation information graph to the current moment;
an operating state acquisition unit: and obtaining a corresponding real-time working state based on the first information graph.
Preferably, the present invention provides a power plant overhaul system, and an operating state acquisition unit includes:
a period map acquisition unit: obtaining a first comparison graph with the same time based on the first information graph and the operation cycle graph of the corresponding working area;
a first difference value calculation unit: calculating first data in a first information graph at the same moment and first difference values of second data in a first comparison graph, and marking positive and negative, wherein the first difference values corresponding to the first data being larger than the second data are positive;
a first average value acquisition unit: if the first difference values are positive, calculating a weighted average value of all the first difference values to obtain a first average value;
a first real-time status acquisition unit: based on the first average value and a first real-time state comparison table, a corresponding first real-time state is obtained;
a second average value acquisition unit: if the first difference values are negative, calculating a weighted average value of all the first difference values to obtain a second average value;
a second real-time status acquisition unit: based on the second average value and a second real-time state comparison table, a corresponding second real-time state is obtained;
an alarm issuing unit: if the first difference is not uniform, an immediate overhaul alarm is sent out.
Preferably, the present invention provides a power plant overhaul system, and a policy matching module, including:
a first difference value acquisition unit: if the real-time working state is different from the historical working state of the same working area, acquiring a corresponding first difference value;
deviation acquisition unit: constructing all the first difference values according to a time sequence to obtain corresponding first deviation trends;
defect acquisition unit: based on all working parts of each working area, obtaining dynamic factors which possibly fail;
curve acquisition unit: obtaining a first curve of each corresponding dynamic factor based on the positive and negative attributes of all first differences of each dynamic factor and the same working area;
a combination acquisition unit: based on the third average value of the first deviation trend and the fourth average value of each first curve, a fourth combination formed by curves corresponding to a plurality of fourth average values which are equal to the third average value is obtained;
peak analysis unit: extracting curves with the first maximum peak value larger than a preset maximum peak value on the curves in each fourth combination, and taking dynamic factors corresponding to the extracted curves as a dynamic factor set;
slope acquisition unit: based on the extraction curve corresponding to each dynamic factor of the dynamic factor set, obtaining the tangential slope of the connecting line segment of every two adjacent points in the extraction curve, wherein the tangential slope is a first slope;
turning time acquisition unit: obtaining a first turning time based on a time period that the first slope in the same extraction curve is continuously larger than a preset slope;
turning region acquisition unit: acquiring the first turning time with the longest time in the first turning time corresponding to all the extraction curves, and obtaining a corresponding first turning region;
a first turning value acquisition unit: obtaining a corresponding first turning value based on the difference value of the lowest point and the highest point of the first turning region;
a second slope acquisition unit: extracting the tangential slope of a connecting line segment of every two adjacent points in the first deviation trend to be a second slope;
a second turning time acquisition unit: obtaining a second turning time based on a time period that the second slope is continuously larger than the preset slope in the first deviation trend;
a second turning region acquisition unit: obtaining a second turning region based on the second turning time;
a second turning value acquisition unit: obtaining a corresponding second turning value based on the difference value of the lowest point and the highest point of the second turning region;
a second turning value acquisition unit: acquiring a second turning value in the first deviation trend;
turning difference value acquisition unit: calculating the difference between the sum of the first turning values and the second turning value of all the extracted curves to obtain a turning difference;
turning difference analysis unit: obtaining a fifth combination formed by curves corresponding to the turning difference value larger than the preset turning difference value;
an aggregate construction unit: taking dynamic factors corresponding to the fifth combination as defect factors, and constructing a defect factor set;
policy matching unit: and matching corresponding overhaul strategies based on the defect factor set and the defect-overhaul strategy comparison table.
Preferably, the present invention provides a power plant overhaul system, and an effect obtaining module includes:
and a de-duplication unit: removing the same overhaul strategy based on the overhaul strategy of the same working area;
an association acquisition unit: acquiring an associated overhaul strategy combination based on all the overhaul strategies after treatment;
correlation analysis unit: based on each maintenance strategy combination, obtaining an influence function of the former maintenance strategy on the latter maintenance strategy;
influence time acquisition unit: obtaining corresponding influence time based on the influence function and the operation period of the same working area;
negative judgment unit: if the coefficient in the influence function is positive, the influence time corresponding to the influence function is negative;
positive judgment unit: if the coefficient in the influence function is negative, the influence time corresponding to the influence function is positive;
maintenance effect acquisition unit: based on all the overhaul strategies and the corresponding influence time, obtaining the overhaul time of each overhaul strategy and the complete time of overhaul completion, and constructing to obtain a preset overhaul effect.
Preferably, the present invention provides a power plant overhaul system, a process evaluation module, comprising:
log acquisition unit: obtaining an overhaul work log based on the actual overhaul effect and a preset overhaul effect;
and a maintenance index calculation unit: based on the overhaul work log, calculating to obtain an overhaul completion index based on the current moment;
and (5) overhauling and grading unit: and obtaining the overhaul rating of the overhaul process based on the overhaul completion index and the overhaul index rating table.
Preferably, the present invention provides a power plant overhaul system, an overhaul index calculating unit, including:
the method comprises the steps of carrying out a first treatment on the surface of the Wherein (1)>An overhaul completion index indicating actual overhaul; />The number of overhaul strategies in overhaul work logs of the same work area is represented; />The inspection work log representing the same work area is +.>Presetting overhaul schedule of each overhaul strategy; />The inspection work log representing the same work area is +.>Actual overhaul schedule of each overhaul strategy; />The inspection work log representing the same work area is +.>The overhaul weight of each overhaul strategy; />Representing the residual time to be overhauled corresponding to the preset overhauling effect; />And the residual time to be overhauled corresponding to the actual overhauling effect is represented.
The invention provides a power plant overhaul method, which comprises the following steps:
step 1: acquiring real-time operation information of each working area of the power plant to obtain a corresponding real-time working state;
step 2: based on the real-time working state and the historical working state, corresponding defect factors are obtained, and corresponding maintenance strategies are matched;
step 3: based on all maintenance strategies of the same working area and the correlation influence among the maintenance strategies, a preset maintenance effect is obtained;
step 4: based on the preset overhaul effect and the actual overhaul effect, an overhaul work log is obtained and overhaul grading is carried out on the overhaul process.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a block diagram of a power plant overhaul system in an embodiment of the present invention;
FIG. 2 is a flow chart of a method of power plant overhaul in an embodiment of the invention.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Example 1:
an embodiment of the present invention provides a power plant overhaul system, as shown in fig. 1, including:
the state acquisition module is used for: acquiring real-time operation information of each working area of the power plant to obtain a corresponding real-time working state;
and a strategy matching module: based on the real-time working state and the historical working state, corresponding defect factors are obtained, and corresponding maintenance strategies are matched;
the effect acquisition module is used for: based on all maintenance strategies of the same working area and the correlation influence among the maintenance strategies, a preset maintenance effect is obtained;
a process evaluation module: based on the preset overhaul effect and the actual overhaul effect, an overhaul work log is obtained and overhaul grading is carried out on the overhaul process.
In this embodiment, the working area refers to an area according to a main working link of the power plant, including: generator area, boiler area, turbine area, gas turbine area, and nuclear reactor area.
In this embodiment, the real-time operation information refers to the power output by the real-time operation of each working area of the power plant, including: generator power, boiler power, turbine power, gas turbine power, and nuclear reactor power.
In this embodiment, the real-time working state refers to a state of operation of the working area obtained by analyzing real-time operation information, and includes: high load operation, normal operation, low load operation and abnormal operation.
In this embodiment, the historical operating state refers to a state of the operating area under normal operation, including: high load operation, normal operation and low load operation.
In this embodiment, the defect factor refers to a state of a working part in which the working area is faulty, which is obtained by analyzing the real-time working state and the historical working state, and if the real-time working state does not conform to the historical working state, analyzing the real-time working information.
In this embodiment, the service strategy refers to an executable method of status service of a malfunctioning work piece of the power plant.
In this embodiment, the associated influence refers to an influence on other defect factors that need to be overhauled when an overhauling strategy is implemented, so as to influence implementation processes of other corresponding overhauling strategies, for example: the defect factor B must be repaired by the execution of the overhaul strategy A, so that the execution of the overhaul strategy B is reduced or removed; the execution of the maintenance strategy a must damage the defect factor B, enhancing the execution of the maintenance strategy B.
In this embodiment, the preset overhaul effect refers to the duration of execution of each overhaul strategy obtained by analyzing all overhaul strategies and the correlation influence among the overhaul strategies.
In this embodiment, the actual service effect refers to the length of time that each service strategy is performed in fact.
In this embodiment, the maintenance work log refers to a work log composed of the execution process of all maintenance policies in the preset maintenance effect and the actual maintenance effect, and the preset execution duration and the actual execution duration of each maintenance policy.
In this embodiment, the overhaul process refers to a process in which the entire overhaul strategy is performed.
In this embodiment, the overhaul rating refers to a level of completion of the overhaul process obtained by analyzing an actual overhaul effect and a preset overhaul effect, and includes: optimal, excellent, medium, bad.
The working principle and the beneficial effects of the technical scheme are as follows: the real-time operation information of each working area of the power plant is analyzed to obtain the corresponding real-time working state, the corresponding defect factors are obtained through the analysis of the real-time operation information of each working area of the power plant and the analysis of the real-time working state and the historical working state together, the corresponding maintenance strategies are matched, the preset maintenance effect is obtained through the analysis of all maintenance strategies and the correlation influence among the maintenance strategies of the same working area, the actual maintenance effect is analyzed to obtain a maintenance work log, the maintenance grading is carried out on the maintenance process, the defect needing maintenance is accurately found, the maintenance efficiency of the power plant is improved, and therefore the safety production and the economic benefit of the power plant are guaranteed.
Example 2:
according to the system provided in embodiment 1 of the present invention, the status acquisition module includes:
an image construction unit: acquiring real-time operation information of each working area of the power plant at each moment, and constructing a real-time operation information graph;
an image capturing unit: based on the operation period of the working area corresponding to the real-time operation information graph, intercepting a first information graph from the end of the last complete period of the real-time operation information graph to the current moment;
an operating state acquisition unit: and obtaining a corresponding real-time working state based on the first information graph.
In this embodiment, the real-time operation information graph refers to a graph constructed by taking real-time operation information as a vertical axis and time sequence as a horizontal axis.
In this embodiment, the operation cycle refers to an operation cycle when the obtained working area is normally operated by analyzing a normal operation cycle of the power plant.
In this embodiment, the first information graph refers to a graph from the end of the last complete cycle to the current time in the real-time operation information graph, and indicates the position of the real-time operation information at the current time in the operation cycle.
The working principle and the beneficial effects of the technical scheme are as follows: the position of the real-time operation information at the present moment in the operation period is obtained by intercepting the real-time operation information graph, so that the analysis of the real-time operation state is facilitated, and the accuracy of searching the defect factors is improved.
Example 3:
according to the system provided in embodiment 1 of the present invention, the working state obtaining unit includes:
a period map acquisition unit: obtaining a first comparison graph with the same time based on the first information graph and the operation cycle graph of the corresponding working area;
a first difference value calculation unit: calculating first data in a first information graph at the same moment and first difference values of second data in a first comparison graph, and marking positive and negative, wherein the first difference values corresponding to the first data being larger than the second data are positive;
a first average value acquisition unit: if the first difference values are positive, calculating a weighted average value of all the first difference values to obtain a first average value;
a first real-time status acquisition unit: based on the first average value and a first real-time state comparison table, a corresponding first real-time state is obtained;
a second average value acquisition unit: if the first difference values are negative, calculating a weighted average value of all the first difference values to obtain a second average value;
a second real-time status acquisition unit: based on the second average value and a second real-time state comparison table, a corresponding second real-time state is obtained;
an alarm issuing unit: if the first difference is not uniform, an immediate overhaul alarm is sent out.
In this embodiment, the operation cycle chart refers to a power cycle chart of the working area corresponding to the first information chart, which is output under normal operation.
In this embodiment, the first comparison chart refers to a chart in which the operation cycle chart is taken according to the time of the first information chart, and the obtained time of the first information chart is the time when the working area is normally operated.
In this embodiment, the first data refers to the real-time output power corresponding to a certain moment in the first information map.
In this embodiment, the second data refers to the output power that should normally be corresponding to a certain time in the first map.
In this embodiment, the first difference refers to a difference between the first data and the second data.
In this embodiment, the first average refers to a weighted average of all the first differences calculated, where the first differences are positive.
In this embodiment, the first real-time status comparison table refers to a table in which a first average value and a corresponding real-time status are compared, and includes: high load operation, normal operation, low load operation and abnormal operation.
In this embodiment, the first real-time state refers to a state in which the working area is operated by matching the first average value.
In this embodiment, the second average refers to a weighted average of all the first differences calculated when the first differences are negative.
In this embodiment, the second real-time status comparison table refers to a table in which the second average value and the corresponding real-time status are compared.
In this embodiment, the second real-time state refers to a state in which the working area operates by matching the second average value, and includes: a plurality of states of low load operation.
In this embodiment, the service alarm refers to an alarm in which real-time operation information is severely abnormal, requiring immediate manual intervention.
The working principle and the beneficial effects of the technical scheme are as follows: by acquiring the operation cycle diagrams of the first information diagram at the same time as comparison, abnormal changes of the real-time operation information are obtained, corresponding real-time operation states are matched, accurate searching of defect factors is facilitated, and maintenance efficiency of the power plant is improved.
Example 4:
according to the system provided in embodiment 1 of the present invention, the policy matching module includes:
a first difference value acquisition unit: if the real-time working state is different from the historical working state of the same working area, acquiring a corresponding first difference value;
deviation acquisition unit: constructing all the first difference values according to a time sequence to obtain corresponding first deviation trends;
defect acquisition unit: based on all working parts of each working area, obtaining dynamic factors which possibly fail;
curve acquisition unit: obtaining a first curve of each corresponding dynamic factor based on the positive and negative attributes of all first differences of each dynamic factor and the same working area;
a combination acquisition unit: based on the third average value of the first deviation trend and the fourth average value of each first curve, a fourth combination formed by curves corresponding to a plurality of fourth average values which are equal to the third average value is obtained;
peak analysis unit: extracting curves with the first maximum peak value larger than a preset maximum peak value on the curves in each fourth combination, and taking dynamic factors corresponding to the extracted curves as a dynamic factor set;
slope acquisition unit: based on the extraction curve corresponding to each dynamic factor of the dynamic factor set, obtaining the tangential slope of the connecting line segment of every two adjacent points in the extraction curve, wherein the tangential slope is a first slope;
turning time acquisition unit: obtaining a first turning time based on a time period that the first slope in the same extraction curve is continuously larger than a preset slope;
turning region acquisition unit: acquiring the first turning time with the longest time in the first turning time corresponding to all the extraction curves, and obtaining a corresponding first turning region;
a first turning value acquisition unit: obtaining a corresponding first turning value based on the difference value of the lowest point and the highest point of the first turning region;
a second slope acquisition unit: extracting the tangential slope of a connecting line segment of every two adjacent points in the first deviation trend to be a second slope;
a second turning time acquisition unit: obtaining a second turning time based on a time period that the second slope is continuously larger than the preset slope in the first deviation trend;
a second turning region acquisition unit: obtaining a second turning region based on the second turning time;
a second turning value acquisition unit: obtaining a corresponding second turning value based on the difference value of the lowest point and the highest point of the second turning region;
turning difference value acquisition unit: calculating the difference between the sum of the first turning values and the second turning value of all the extracted curves to obtain a turning difference;
turning difference analysis unit: obtaining a fifth combination formed by curves corresponding to the turning difference value larger than the preset turning difference value;
an aggregate construction unit: taking dynamic factors corresponding to the fifth combination as defect factors, and constructing a defect factor set;
policy matching unit: and matching corresponding overhaul strategies based on the defect factor set and the defect-overhaul strategy comparison table.
In this embodiment, the first deviation trend refers to a trend chart constructed by the first difference according to a corresponding time sequence, and indicates the deviation degree of the first information chart and the operation cycle chart.
In this embodiment, the dynamic factor refers to a state of failure that may occur for each working part of each working area.
In this embodiment, the first curve refers to a curve of an influence of a dynamic factor on the output power in a normal state, if the first difference values are all the influence of a regular dynamic factor on the output power in the normal state is a high load influence, the first curve is in a first quadrant and the trend is ascending, if the first difference values are all negative, the influence of the dynamic factor on the output power in the normal state is a low load influence, and the first curve is in a fourth quadrant and the trend is descending.
In this embodiment, the third average refers to an average of values of the ordinate corresponding to each point in the first deviation trend.
In this embodiment, the fourth average refers to an average of values of the ordinate corresponding to each point in each first curve.
In this embodiment, the fourth combination refers to a combination including a plurality of fourth curves corresponding to a fourth average value equal to the third average value, and there are a plurality of fourth combinations.
In this embodiment, the first maximum peak refers to the maximum peak of each first curve in each fourth combination.
In this embodiment, the preset maximum peak value refers to a value of half of the preset maximum peak value of the first deviation trend.
In this embodiment, the dynamic factor set refers to a set of dynamic factors corresponding to a curve in which the first maximum peak value of the first curve in the fourth combination is greater than the preset maximum peak value.
In this embodiment, the extraction curve refers to a first curve in which the first maximum peak of the first curve in the fourth combination is greater than the preset maximum peak.
In this embodiment, the first slope refers to the tangential slope of the connecting line segment of every two adjacent points in each extraction curve.
In this embodiment, the preset slope refers to a preset minimum value of the slope that can be used as a turn.
In this embodiment, the first transition time refers to a period of time in which the first slope is continuously greater than the preset slope in the same extraction curve.
In this embodiment, the first turning region refers to a graph of the first turning time corresponding to the extraction curve.
In this embodiment, the first turning value refers to the difference between the lowest point and the highest point of the first turning region.
In this embodiment, the second slope refers to a tangential slope of a line segment connecting every two adjacent points in the first deviation trend.
In this embodiment, the second turning time refers to a period of time in which the second slope is continuously greater than the preset slope in the first deviation trend.
In this embodiment, the second turning region refers to a graph of the second turning time corresponding in the first deviation trend.
In this embodiment, the second turning value refers to the difference between the lowest point and the highest point of the second turning region.
In this embodiment, the turning difference refers to the difference between the sum of the first turning values and the second turning value of all the extraction curves.
In this embodiment, the preset turning difference value refers to a preset minimum value of turning difference values representing that the combination of all the extracted curves approaches the first deviation trend.
In this embodiment, the fifth combination refers to a fifth combination formed by the extraction curves corresponding to the turning difference value being greater than the preset turning difference value.
In this embodiment, the defect factor set refers to a set constructed by taking dynamic factors corresponding to the extraction curves in the fifth combination as defect factors, and all the defect factors.
In this embodiment, the defect-repair strategy comparison table refers to a table containing defect factors and repair strategies in one-to-one comparison.
The working principle and the beneficial effects of the technical scheme are as follows: the method comprises the steps of obtaining a first difference value corresponding to a real-time working state different from a historical working state of the same working area, constructing and obtaining a first deviation trend, analyzing dynamic factors of possible faults of all working parts of each working area, obtaining an influence curve of each dynamic factor on normal output power of the working area, comprehensively analyzing the influence curve and the first deviation trend, obtaining a combination of the influence curves forming the first deviation trend, obtaining the dynamic factors corresponding to the influence curves in the combination as defect factors, matching with a defect-overhaul strategy comparison table, obtaining a corresponding overhaul strategy, accurately searching defects needing overhaul, improving overhaul efficiency of a power plant, and guaranteeing safe production and economic benefits of the power plant.
Example 5:
according to the system provided in embodiment 1 of the present invention, the effect obtaining module includes:
and a de-duplication unit: removing the same overhaul strategy based on the overhaul strategy of the same working area;
an association acquisition unit: acquiring an associated overhaul strategy combination based on all the overhaul strategies after treatment;
correlation analysis unit: based on each maintenance strategy combination, obtaining an influence function of the former maintenance strategy on the latter maintenance strategy;
influence time acquisition unit: obtaining corresponding influence time based on the influence function and the operation period of the same working area;
negative judgment unit: if the coefficient in the influence function is positive, the influence time corresponding to the influence function is negative;
positive judgment unit: if the coefficient in the influence function is negative, the influence time corresponding to the influence function is positive;
maintenance effect acquisition unit: based on all the overhaul strategies and the corresponding influence time, obtaining the overhaul time of each overhaul strategy and the complete time of overhaul completion, and constructing to obtain a preset overhaul effect.
In this embodiment, a service policy combination refers to a combination with an associated service policy.
In this embodiment, the influence function refers to a function in which the degree of influence of the previous service policy on the latter service policy varies with time.
In this embodiment, the influence time refers to the time of influence of the previous maintenance strategy on the next maintenance strategy obtained by calculating the influence function and a cycle time of the same working area.
In this embodiment, the maintenance time refers to the time required for the maintenance policy itself to independently execute and complete and the time of influence, and the obtained maintenance policy is the time for completing maintenance under the influence of the maintenance policy associated with the maintenance policy.
In this embodiment, the complete time refers to the time that the entire service strategy for the work area is completed.
The working principle and the beneficial effects of the technical scheme are as follows: and the time for finishing the overhaul of each overhaul strategy under the influence of the overhaul strategy related to the overhaul strategy and the time for finishing the overhaul of the whole overhaul strategy of the working area are obtained as preset overhaul effects by the influence of the correlation between all overhaul strategies of the same working area and the overhaul strategies, so that the subsequent evaluation and optimization of the overhaul process are facilitated, and the overhaul efficiency of a power plant is improved.
Example 6:
according to the system provided in embodiment 1 of the invention, a process evaluation module includes:
log acquisition unit: obtaining an overhaul work log based on the actual overhaul effect and a preset overhaul effect;
and a maintenance index calculation unit: based on the overhaul work log, calculating to obtain an overhaul completion index based on the current moment;
and (5) overhauling and grading unit: and obtaining the overhaul rating of the overhaul process based on the overhaul completion index and the overhaul index rating table.
In this embodiment, the overhaul completion index refers to an index of completion of an overhaul process of the work area at the present moment by calculating the time that the overhaul strategy in the overhaul work log should take to complete and the time actually spent.
In this embodiment, the overhaul index rating table refers to a table containing the levels of overhaul ratings and the ranges of corresponding overhaul completion indices.
The working principle and the beneficial effects of the technical scheme are as follows: the overhaul completion index of the overhaul process of the working area at the current moment is calculated, the overhaul process is accurately evaluated, the overhaul rating of the overhaul process is obtained, the overhaul process is favorably optimized, and the overhaul efficiency of the power plant is improved.
Example 7:
according to the system provided in embodiment 1 of the present invention, an overhaul index calculation unit includes:
the method comprises the steps of carrying out a first treatment on the surface of the Wherein (1)>An overhaul completion index indicating actual overhaul; />The number of overhaul strategies in overhaul work logs of the same work area is represented; />The inspection work log representing the same work area is +.>Presetting overhaul schedule of each overhaul strategy; />The inspection work log representing the same work area is +.>Actual overhaul schedule of each overhaul strategy; />The inspection work log representing the same work area is +.>The overhaul weight of each overhaul strategy; />Representing the residual time to be overhauled corresponding to the preset overhauling effect; />And the residual time to be overhauled corresponding to the actual overhauling effect is represented.
The working principle and the beneficial effects of the technical scheme are as follows: the overhaul completion index of the overhaul process of the working area at the current moment is calculated, the overhaul process is accurately evaluated, the overhaul process is favorably optimized, and the overhaul efficiency of the power plant is improved.
Example 8:
an embodiment of the present invention provides a power plant overhaul method, as shown in fig. 2, including:
step 1: acquiring real-time operation information of each working area of the power plant to obtain a corresponding real-time working state;
step 2: based on the real-time working state and the historical working state, corresponding defect factors are obtained, and corresponding maintenance strategies are matched;
step 3: based on all maintenance strategies of the same working area and the correlation influence among the maintenance strategies, a preset maintenance effect is obtained;
step 4: based on the preset overhaul effect and the actual overhaul effect, an overhaul work log is obtained and overhaul grading is carried out on the overhaul process.
The working principle and the beneficial effects of the technical scheme are as follows: the real-time operation information of each working area of the power plant is analyzed to obtain the corresponding real-time working state, the corresponding defect factors are obtained through the analysis of the real-time operation information of each working area of the power plant and the analysis of the real-time working state and the historical working state together, the corresponding maintenance strategies are matched, the preset maintenance effect is obtained through the analysis of all maintenance strategies and the correlation influence among the maintenance strategies of the same working area, the actual maintenance effect is analyzed to obtain a maintenance work log, the maintenance grading is carried out on the maintenance process, the defect needing maintenance is accurately found, the maintenance efficiency of the power plant is improved, and therefore the safety production and the economic benefit of the power plant are guaranteed.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (5)
1. A power plant overhaul system, comprising:
the state acquisition module is used for: acquiring real-time operation information of each working area of the power plant to obtain a corresponding real-time working state;
and a strategy matching module: based on the real-time working state and the historical working state, corresponding defect factors are obtained, and corresponding maintenance strategies are matched;
the effect acquisition module is used for: based on all maintenance strategies of the same working area and the correlation influence among the maintenance strategies, a preset maintenance effect is obtained;
a process evaluation module: based on the preset service effect and the actual service effect, obtaining an overhaul work log and grading overhaul in an overhaul process;
wherein, the state acquisition module includes:
an image construction unit: acquiring real-time operation information of each working area of the power plant at each moment, and constructing a real-time operation information graph;
an image capturing unit: based on the operation period of the working area corresponding to the real-time operation information graph, intercepting a first information graph from the end of the last complete period of the real-time operation information graph to the current moment;
an operating state acquisition unit: based on the first information graph, a corresponding real-time working state is obtained;
wherein, the operating condition obtains the unit, includes:
a period map acquisition unit: obtaining a first comparison graph with the same time based on the first information graph and the operation cycle graph of the corresponding working area;
a first difference value calculation unit: calculating first data in a first information graph at the same moment and first difference values of second data in a first comparison graph, and marking positive and negative, wherein the first difference values corresponding to the first data being larger than the second data are positive;
a first average value acquisition unit: if the first difference values are positive, calculating a weighted average value of all the first difference values to obtain a first average value;
a first real-time status acquisition unit: based on the first average value and a first real-time state comparison table, a corresponding first real-time state is obtained;
a second average value acquisition unit: if the first difference values are negative, calculating a weighted average value of all the first difference values to obtain a second average value;
a second real-time status acquisition unit: based on the second average value and the second real-time status lookup table, obtaining a corresponding second real-time state;
an alarm issuing unit: if the first difference value is not uniform, an immediate overhaul alarm is sent out;
wherein, the policy matching module includes:
a first difference value acquisition unit: if the real-time working state is different from the historical working state of the same working area, acquiring a corresponding first difference value;
deviation acquisition unit: constructing all the first difference values according to a time sequence to obtain corresponding first deviation trends;
defect acquisition unit: based on all working parts of each working area, obtaining dynamic factors which possibly fail;
curve acquisition unit: obtaining a first curve of each corresponding dynamic factor based on the positive and negative attributes of all first differences of each dynamic factor and the same working area;
a combination acquisition unit: based on the third average value of the first deviation trend and the fourth average value of each first curve, a fourth combination formed by curves corresponding to a plurality of fourth average values which are equal to the third average value is obtained;
peak analysis unit: extracting curves with the first maximum peak value larger than a preset maximum peak value on the curves in each fourth combination, and taking dynamic factors corresponding to the extracted curves as a dynamic factor set;
slope acquisition unit: based on the extraction curve corresponding to each dynamic factor of the dynamic factor set, obtaining the tangential slope of the connecting line segment of every two adjacent points in the extraction curve, wherein the tangential slope is a first slope;
turning time acquisition unit: obtaining a first turning time based on a time period that the first slope in the same extraction curve is continuously larger than a preset slope;
turning region acquisition unit: acquiring the first turning time with the longest time in the first turning time corresponding to all the extraction curves, and obtaining a corresponding first turning region;
a first turning value acquisition unit: obtaining a corresponding first turning value based on the difference value of the lowest point and the highest point of the first turning region;
a second slope acquisition unit: extracting the tangential slope of a connecting line segment of every two adjacent points in the first deviation trend to be a second slope;
a second turning time acquisition unit: obtaining a second turning time based on a time period that the second slope is continuously larger than the preset slope in the first deviation trend;
a second turning region acquisition unit: obtaining a second turning region based on the second turning time;
a second turning value acquisition unit: obtaining a corresponding second turning value based on the difference value of the lowest point and the highest point of the second turning region;
a second turning value acquisition unit: acquiring a second turning value in the first deviation trend;
turning difference value acquisition unit: calculating the difference between the sum of the first turning values and the second turning value of all the extracted curves to obtain a turning difference;
turning difference analysis unit: obtaining a fifth combination formed by curves corresponding to the turning difference value larger than the preset turning difference value;
an aggregate construction unit: taking dynamic factors corresponding to the fifth combination as defect factors, and constructing a defect factor set;
policy matching unit: and matching corresponding overhaul strategies based on the defect factor set and the defect-overhaul strategy comparison table.
2. The system of claim 1, wherein the effect acquisition module comprises:
and a de-duplication unit: removing the same overhaul strategy based on the overhaul strategy of the same working area;
an association acquisition unit: acquiring an associated overhaul strategy combination based on all the overhaul strategies after treatment;
correlation analysis unit: based on each maintenance strategy combination, obtaining an influence function of the former maintenance strategy on the latter maintenance strategy;
influence time acquisition unit: obtaining corresponding influence time based on the influence function and the operation period of the same working area;
negative judgment unit: if the coefficient in the influence function is positive, the influence time corresponding to the influence function is negative;
positive judgment unit: if the coefficient in the influence function is negative, the influence time corresponding to the influence function is positive;
maintenance effect acquisition unit: based on all the overhaul strategies and the corresponding influence time, obtaining the overhaul time of each overhaul strategy and the complete time of overhaul completion, and constructing to obtain a preset overhaul effect.
3. The system of claim 1, wherein the process evaluation module comprises:
log acquisition unit: obtaining an overhaul work log based on the actual overhaul effect and a preset overhaul effect;
and a maintenance index calculation unit: based on the overhaul work log, calculating to obtain an overhaul completion index based on the current moment;
and (5) overhauling and grading unit: and obtaining the overhaul rating of the overhaul process based on the overhaul completion index and the overhaul index rating table.
4. A system according to claim 3, wherein the service index calculation unit comprises:
the method comprises the steps of carrying out a first treatment on the surface of the Wherein (1)>An overhaul completion index indicating actual overhaul; />The number of overhaul strategies in overhaul work logs of the same work area is represented; />The inspection work log representing the same work area is +.>Presetting overhaul schedule of each overhaul strategy; />The inspection work log representing the same work area is +.>Individual maintenance strategyA slight actual overhaul schedule; />The inspection work log representing the same work area is +.>The overhaul weight of each overhaul strategy; />Representing the residual time to be overhauled corresponding to the preset overhauling effect; />And the residual time to be overhauled corresponding to the actual overhauling effect is represented.
5. A method of power plant overhaul, comprising:
step 1: acquiring real-time operation information of each working area of the power plant to obtain a corresponding real-time working state;
step 2: based on the real-time working state and the historical working state, corresponding defect factors are obtained, and corresponding maintenance strategies are matched;
step 3: based on all maintenance strategies of the same working area and the correlation influence among the maintenance strategies, a preset maintenance effect is obtained;
step 4: based on the preset overhaul effect and the actual overhaul effect, obtaining an overhaul work log and carrying out overhaul grading on an overhaul process;
wherein, step 1 includes:
acquiring real-time operation information of each working area of the power plant at each moment, and constructing a real-time operation information graph;
based on the operation period of the working area corresponding to the real-time operation information graph, intercepting a first information graph from the end of the last complete period of the real-time operation information graph to the current moment;
based on the first information graph, obtaining a corresponding real-time working state comprises the following steps:
obtaining a first comparison graph with the same time based on the first information graph and the operation cycle graph of the corresponding working area;
calculating first data in a first information graph at the same moment and first difference values of second data in a first comparison graph, and marking positive and negative, wherein the first difference values corresponding to the first data being larger than the second data are positive;
if the first difference values are positive, calculating a weighted average value of all the first difference values to obtain a first average value;
based on the first average value and a first real-time state comparison table, a corresponding first real-time state is obtained;
if the first difference values are negative, calculating a weighted average value of all the first difference values to obtain a second average value;
a second real-time status acquisition unit: based on the second average value and a second real-time state comparison table, a corresponding second real-time state is obtained;
if the first difference value is not uniform, an immediate overhaul alarm is sent out;
wherein, step 2 includes:
if the real-time working state is different from the historical working state of the same working area, acquiring a corresponding first difference value;
constructing all the first difference values according to a time sequence to obtain corresponding first deviation trends;
based on all working parts of each working area, obtaining dynamic factors which possibly fail;
obtaining a first curve of each corresponding dynamic factor based on the positive and negative attributes of all first differences of each dynamic factor and the same working area;
based on the third average value of the first deviation trend and the fourth average value of each first curve, a fourth combination formed by curves corresponding to a plurality of fourth average values which are equal to the third average value is obtained;
extracting curves with the first maximum peak value larger than a preset maximum peak value on the curves in each fourth combination, and taking dynamic factors corresponding to the extracted curves as a dynamic factor set;
based on the extraction curve corresponding to each dynamic factor of the dynamic factor set, obtaining the tangential slope of the connecting line segment of every two adjacent points in the extraction curve, wherein the tangential slope is a first slope;
obtaining a first turning time based on a time period that the first slope in the same extraction curve is continuously larger than a preset slope;
acquiring the first turning time with the longest time in the first turning time corresponding to all the extraction curves, and obtaining a corresponding first turning region;
obtaining a corresponding first turning value based on the difference value of the lowest point and the highest point of the first turning region;
extracting the tangential slope of a connecting line segment of every two adjacent points in the first deviation trend to be a second slope;
obtaining a second turning time based on a time period that the second slope is continuously larger than the preset slope in the first deviation trend;
obtaining a second turning region based on the second turning time;
obtaining a corresponding second turning value based on the difference value of the lowest point and the highest point of the second turning region;
acquiring a second turning value in the first deviation trend;
calculating the difference between the sum of the first turning values and the second turning value of all the extracted curves to obtain a turning difference;
obtaining a fifth combination formed by curves corresponding to the turning difference value larger than the preset turning difference value;
taking dynamic factors corresponding to the fifth combination as defect factors, and constructing a defect factor set;
and matching corresponding overhaul strategies based on the defect factor set and the defect-overhaul strategy comparison table.
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