CN112330152A - Water supply pump state evaluation and operation and maintenance method and system based on data fusion - Google Patents
Water supply pump state evaluation and operation and maintenance method and system based on data fusion Download PDFInfo
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Abstract
The invention discloses a water feeding pump state evaluation and operation and maintenance method and system based on data fusion, wherein the method comprises the following steps: step 1, acquiring online data of an SIS system, early warning data of an early warning system and offline data of a point inspection system of a water feeding pump in a preset time period according to a received evaluation instruction; step 2, fusing the online data, the early warning data and the offline data, and extracting the device characteristics to obtain device characteristic parameters; step 3, establishing an evaluation model according to the existing standard and an expert database; step 4, evaluating the state of the water feeding pump from economy, safety and service life by adopting an evaluation model and combining equipment characteristic parameters, and outputting a water feeding pump evaluation result; and 5, selecting a combination mode of equipment operation, an equipment operation mode and a combination service life analysis result of the parts with potential fault characteristics according to the water feed pump evaluation result and the output of the water feed pump system. Comprehensive evaluation is carried out on the feed pump in multiple dimensions, and the method is more scientific.
Description
Technical Field
The invention relates to the technical field of water supply pump management of thermal power stations, in particular to a water supply pump state evaluation and operation and maintenance method and system based on data fusion.
Background
The equipment reliability is an important guarantee for the safety production of the thermal generator set. Therefore, in the whole life cycle of the equipment, the optimal balance of unit reliability and economy is realized through the management optimization of the equipment, and the method has important significance for the production and operation of the power plant.
A large-scale generating set (a generating set with more than 300 MW) generally adopts one electric water feeding pump and two steam-driven water feeding pumps, the electric water feeding pump is used for starting and stopping the machine and standby accidents, and the adjustment of the electric water feeding pump mainly depends on the adjustment of a hydraulic coupler scoop tube and is matched with a boiler water feeding adjusting valve. After the steam-driven water feeding pump is flushed and warmed up to 3000 r/min, the operation mode of remote control is switched, and the water feeding amount is regulated and controlled by the rotating speed. The steam source for driving the small steam turbine is an auxiliary steam source, a four-extraction and cold-end reheating steam three-way steam source, and exhaust steam enters a condenser.
Therefore, the water feeding pump has an important position in the generator set, the operation reliability of the water feeding pump is closely related to the operation reliability of the generator set, and a fault inevitably occurs in the operation of equipment, whether the equipment has the fault or not is generally concerned by the prior technical personnel, the health state of the equipment is not concerned, namely the equipment is in the normal operation state, but the fault possibly occurs in a short period, if the hidden danger possibly occurring is eliminated in advance, on one hand, the subsequent maintenance difficulty is reduced, the early maintenance is realized, on the other hand, the running state of the equipment in the fault state can also be avoided, the damage to the equipment is reduced, the maintenance cost of the equipment is reduced, the operation cost of the equipment is reduced, and the health care function similar to a human body is realized.
Therefore, how to achieve "health care" of a device is one direction of work for those skilled in the art.
Disclosure of Invention
The invention aims to provide a water feeding pump state evaluation and operation and maintenance method and system based on data fusion, which comprehensively evaluate the state of water feeding pump equipment from three dimensions of equipment safety indexes, economic indexes and equipment service life indexes, overcome the defects of the conventional single evaluation system and more scientifically and reasonably guide the operation and maintenance work of the whole service life cycle of the equipment.
In order to solve the technical problem, an embodiment of the present invention provides a method for evaluating a state of a water supply pump and performing operation and maintenance based on data fusion, including:
step 1, acquiring online data of an SIS system, early warning data of an early warning system and offline data of a point inspection system of a water feeding pump in a preset time period according to a received evaluation instruction;
step 2, fusing the online data, the early warning data and the offline data, and extracting the equipment characteristics to obtain equipment characteristic parameters;
step 3, establishing an evaluation model according to the existing standard and an expert database;
step 4, evaluating the state of the water feeding pump from economy, safety and service life by adopting the evaluation model and combining the equipment characteristic parameters, and outputting the evaluation result of the water feeding pump;
and 5, selecting a combination mode of equipment operation, an equipment operation mode and a combination service life analysis result of the parts with potential fault characteristics according to the feed pump evaluation result and the output of the feed pump system.
Wherein, the step 2 further comprises:
and denoising the online data, then extracting features to obtain a monitoring value, a change rate and correlation, counting the early warning frequency of the early warning data, and extracting the routing inspection information and the working condition information of the offline data.
Wherein the step 4 comprises:
and performing weighted calculation on the economic performance degradation index, the safety performance index and the equipment service life index of the water supply pump by adopting the evaluation model to obtain an equipment comprehensive performance index which is used as the water pump evaluation result for output.
Wherein, the step 4 further comprises:
establishing an economic index parameter benchmarking library according to the historical operation data of the water supply pump and expert experience information, and calculating a relative value of performance degradation;
and calculating an economic performance degradation index by comparing the equipment degradation loss and the maintenance cost, adding the economic performance degradation index into the water pump evaluation result, and outputting the water pump evaluation result.
Wherein the evaluation result is a multi-grade evaluation result or an index evaluation result.
In addition, the embodiment of the invention also provides a water supply pump state evaluation and operation and maintenance system based on data fusion, which comprises:
the numerical value acquisition module is used for acquiring online data of the SIS system, early warning data of the early warning system and offline data of the point inspection system of the water feeding pump in a preset time period according to the received evaluation instruction;
the state monitoring module is connected with the numerical value acquisition module and is used for fusing the online data, the early warning data and the offline data and extracting the equipment characteristics to obtain equipment characteristic parameters;
the evaluation construction and execution module is connected with the state monitoring module and used for establishing an evaluation model according to the existing standard and an expert database, evaluating the state of the water feeding pump from economy, safety and service life by adopting the evaluation model and combining the equipment characteristic parameters, and outputting the evaluation result of the water feeding pump;
and the operation and maintenance strategy output module is connected with the evaluation construction and execution module and used for making a maintenance strategy according to the water supply pump evaluation result and by combining with the water supply pump system output selection equipment operation combination mode, equipment operation mode and the service life analysis result of the parts with potential fault characteristics.
Wherein, the evaluation construction and execution module comprises:
the economic analysis unit is used for establishing an economic index parameter benchmarking library according to historical equipment operation data and expert experience information of the water supply pump, calculating a relative value of performance degradation, and calculating an economic performance degradation index by comparing equipment degradation loss and maintenance cost;
the equipment safety analysis unit is used for weighting and calculating an equipment safety performance index according to the historical typical fault type of the water feeding pump and the influence degree of the equipment characteristic parameter on safety;
the equipment life analysis unit is used for establishing estimation and outputting an equipment life index on the basis of the historical overhaul data and the replacement cycle of spare parts recommended by a manufacturer by taking an equipment account as a basis;
and the equipment state comprehensive evaluation unit is connected with the economic performance analysis unit, the equipment safety analysis unit and the equipment service life analysis unit, and is used for synthesizing the state of the water feeding pump according to the economic performance degradation index, the equipment safety performance index and the equipment service life index according to a preset rule and outputting the evaluation result of the water feeding pump.
The system also comprises an equipment reliability analysis module connected with the evaluation construction and execution module, and the equipment reliability analysis module is used for deducing the reason of the fault of the water-feeding pump step by step according to a fault tree analysis method, determining the basic type of a fault mode, finding the root cause of the fault, extracting fault characteristic parameters and establishing an equipment state monitoring index system, and the evaluation construction and execution module evaluates the state of the water-feeding pump through the equipment state monitoring index system.
The system also comprises a data cleaning module connected with the state monitoring module and used for removing the dead value of the real-time data of the online data and removing the repeated and invalid data of the offline data to realize data cleaning and then extracting the equipment characteristics by the state monitoring module to obtain the equipment characteristic parameters.
The system also comprises a weight index input module connected with the evaluation construction and execution module and used for integrating the state of the feed water pump according to the input economic performance deterioration index, the equipment safety performance index and the weight index of the equipment service life index and outputting the evaluation result of the feed water pump.
Compared with the prior art, the water feeding pump state evaluation and operation and maintenance method and system based on data fusion provided by the embodiment of the invention have the following advantages:
according to the water feeding pump state evaluation and operation and maintenance method and system based on real-time data and based on data fusion, the state of the water feeding pump equipment is comprehensively evaluated from three dimensions of equipment safety indexes, economic indexes and equipment service life indexes, the defects of a single evaluation system in the prior art are overcome, and the operation and maintenance work of the whole service life cycle of the equipment is guided more scientifically and reasonably.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic flow chart illustrating steps of a method for evaluating a state of a water supply pump and performing operation and maintenance based on data fusion according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an embodiment of a water supply pump state evaluation and operation and maintenance system based on data fusion according to an embodiment of the present invention.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1 to fig. 2, fig. 1 is a schematic flow chart illustrating steps of an embodiment of a method for evaluating a state of a water pump and maintaining the water pump based on data fusion according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of an embodiment of a water supply pump state evaluation and operation and maintenance system based on data fusion according to an embodiment of the present invention.
In one specific embodiment, the water supply pump state evaluation and operation and maintenance method based on data fusion comprises the following steps:
step 1, acquiring online data of an SIS system, early warning data of an early warning system and offline data of a point inspection system of a water feeding pump in a preset time period according to a received evaluation instruction;
step 2, fusing the online data, the early warning data and the offline data, and extracting the equipment characteristics to obtain equipment characteristic parameters;
step 3, establishing an evaluation model according to the existing standard and an expert database;
step 4, evaluating the state of the water feeding pump from economy, safety and service life by adopting the evaluation model and combining the equipment characteristic parameters, and outputting the evaluation result of the water feeding pump;
and 5, selecting a combination mode of equipment operation, an equipment operation mode and a combination service life analysis result of the parts with potential fault characteristics according to the feed pump evaluation result and the output of the feed pump system.
The state of the water feeding pump equipment is comprehensively evaluated from three dimensions of equipment safety index, economic index and equipment service life index, so that the defect of the conventional single evaluation system is overcome, and the operation and maintenance work of the whole service life cycle of the equipment is guided more scientifically and reasonably.
Since data errors due to system errors, sensor faults and the like may occur during data processing, if the data errors are used as actual operation parameters during the processing, the reliability is necessarily greatly reduced, and the value of the finally obtained water supply pump evaluation result is low, so that the problem needs to be solved, in one embodiment of the invention, the step 2 further comprises:
and denoising the online data, then extracting features to obtain a monitoring value, a change rate and correlation, counting the early warning frequency of the early warning data, and extracting the routing inspection information and the working condition information of the offline data.
It should be noted that, the invention does not limit how to perform the feature extraction after the on-line data is denoised to obtain the monitoring value, the change rate and the correlation, and may adopt some existing processing modes, or adopt a self-defined rule mode to process, or adopt other modes to count the early warning frequency of the early warning data, and may only count the frequency when the fault is early warned, or may also count the early warning when the equipment is about to break down, and certainly, the invention does not limit the invention to extract the patrol information and the working condition information of the off-line data, and may also perform the adaptive extraction.
The method evaluates the economy, safety and service life of the feed pump and outputs the evaluation result of the feed pump, but the emphasis points can be different, such as safety is the main point, economy and service life are the auxiliary points, or economy is the main point, and safety and service life are both considered.
Although all three need to be considered, if there is no complete rule, different conclusions may be drawn, which are more scientific than just considering one of them, but due to the different properties considered in different application scenarios. For example, in the event of flood fighting and emergency rescue, on the premise of safety, the share of the service life and the economy is less, because the life and property of people need to be saved, if a generating set is in normal operation, the economy and the safety need to be the main, if equipment is maintained backward or some spare parts are difficult to purchase, and the like, the service life needs to be the main, the safety and the economy are inferior, the operation of the generating set is ensured, and how to realize the requirements is very important.
In an embodiment of the present invention, in order to solve the above problem, the step 4 includes:
and performing weighted calculation on the economic performance degradation index, the safety performance index and the equipment service life index of the water supply pump by adopting the evaluation model to obtain an equipment comprehensive performance index which is used as the water pump evaluation result for output.
The economic performance deterioration index, the safety performance index and the equipment service life index are obtained through evaluation, workers can carry out different operations according to different indexes, if the safety index is poor, safety is mainly needed, the weight of the safety index is increased, other corresponding indexes can preset certain rules, and the weight is adopted when a certain index reaches a certain degree.
It should be noted that the weight of each index may be predetermined and established according to a rule, or may be temporarily input according to a certain rule when a worker faces certain specific situations, which is not limited in the present invention.
In order to further improve the maintenance efficiency and the efficiency of performing equipment maintenance, the step 4 further includes:
establishing an economic index parameter benchmarking library according to the historical operation data of the water supply pump and expert experience information, and calculating a relative value of performance degradation; the change of the efficiency of the feed pump can be indirectly reflected through the change of the rotating speed, so that a corresponding performance change index is obtained.
And calculating an economic performance degradation index by comparing the equipment degradation loss and the maintenance cost, adding the economic performance degradation index into the water pump evaluation result, and outputting the water pump evaluation result.
The economic performance degradation index is calculated by comparing the equipment degradation loss and the overhaul cost and is added to the water pump evaluation result for output, a worker can quickly know the value of maintenance after the equipment breaks down, if one part breaks down according to a conventional mode, if all parts are maintained, the service life of the part is inevitably short, long-term high-frequency maintenance is carried out, the maintenance efficiency is low, the probability of the fault is increased, the maintenance cost is high, the overall economy is poor, and the part can be judged to need minor repair, major repair or replacement after the part breaks down through the economic performance degradation index, so that the optimal and fastest decision is made, the maintenance efficiency is improved, and the maintenance cost is reduced.
In one embodiment, the following is specified:
1) obtaining the mean value of the rotating speed of the feed pump under a specific working condition (the outlet flow and the pressure of the feed pump are working condition reference quantities) by an optimization algorithm;
2) calculating the performance degradation degree of the equipment indirectly by comparing and calculating the difference between the rotating speed value and the benchmark value of the water feeding pump under the specific working condition;
and calculating the economic performance degradation index by comparing the equipment degradation loss with the overhaul cost.
The expression mode of the evaluation result is not limited in the invention, and the evaluation result can be a multi-grade evaluation result, an index evaluation result or an evaluation result in other modes.
If the rating evaluation result is adopted, the following can be expressed: the evaluation is very direct and white, so that maintenance personnel can quickly take corresponding measures through the evaluation result, if the inspection frequency is not changed normally, the inspection frequency needs to be increased, if the abnormality occurs, the operation data needs to be observed in a key manner, even the structure of the device is analyzed, and the failure is seriously explained or about to occur, the shutdown maintenance is needed, and the like.
Similarly, the index evaluation result can adopt an index mode, such as setting percentage, corresponding measures are taken in a certain range, such as 90-100, the operation of the equipment is normal, the equipment in the interval can be inspected normally, 70-89, the equipment starts to have small abrasion, multiple attention observation is needed, the inspection frequency is increased, 40-69, the abnormality starts to appear, important attention is needed, certain maintenance is carried out, and when the value is lower than 39, the equipment is seriously damaged, shutdown maintenance is needed, and the like.
In addition, the embodiment of the invention also provides a water supply pump state evaluation and operation and maintenance system based on data fusion, which comprises:
the numerical value acquisition module 10 is used for acquiring online data of the SIS system, early warning data of the early warning system and offline data of the point inspection system of the water feeding pump in a preset time period according to the received evaluation instruction;
the state monitoring module 20 is connected with the numerical value acquisition module 10 and is used for performing fusion processing on the online data, the early warning data and the offline data and extracting equipment characteristics to obtain equipment characteristic parameters;
the evaluation construction and execution module 30 is connected with the state monitoring module 20 and is used for establishing an evaluation model according to the existing standard and an expert database, evaluating the state of the water feeding pump from economy, safety and service life by adopting the evaluation model and combining the equipment characteristic parameters, and outputting the evaluation result of the water feeding pump;
and the operation and maintenance strategy output module 40 is connected with the evaluation construction and execution module 30 and used for making a maintenance strategy according to the water supply pump evaluation result and by combining with the water supply pump system output selection equipment operation combination mode, equipment operation mode and the combination service life analysis result of the parts with potential fault characteristics.
The water feeding pump state evaluation and operation and maintenance system based on data fusion is a system corresponding to the water feeding pump state evaluation and operation and maintenance method based on data fusion, and has the same beneficial effects, and the details are not repeated in the invention.
The important point of the present invention is to evaluate the state of the feed water pump, the evaluation mode of the present invention is not limited, although the evaluation can be analyzed and evaluated from the aspects of economy, safety and service life, the economy of the equipment can change with the manufacturing cost of the equipment, for example, after years of technical progress, the manufacturing process of the equipment is perfect, the equipment cost is reduced, the performance of the equipment is improved, the equipment is improved by upgrading the economy, and the corresponding safety and service life are changed, therefore, the above are not fixed and constant, but are continuously changed with time, and how to perform accurate evaluation is an important concern, in one embodiment, the evaluation construction and execution module 30 includes:
the economic analysis unit is used for establishing an economic index parameter benchmarking library according to historical equipment operation data and expert experience information of the water supply pump, calculating a relative value of performance degradation, and calculating an economic performance degradation index by comparing equipment degradation loss and maintenance cost;
the equipment safety analysis unit is used for weighting and calculating an equipment safety performance index according to the historical typical fault type of the water feeding pump and the influence degree of the equipment characteristic parameter on safety;
the equipment life analysis unit is used for establishing estimation and outputting an equipment life index on the basis of the historical overhaul data and the replacement cycle of spare parts recommended by a manufacturer by taking an equipment account as a basis;
and the equipment state comprehensive evaluation unit is connected with the economic performance analysis unit, the equipment safety analysis unit and the equipment service life analysis unit, and is used for synthesizing the state of the water feeding pump according to the economic performance degradation index, the equipment safety performance index and the equipment service life index according to a preset rule and outputting the evaluation result of the water feeding pump.
Through each unit, accurate evaluation is carried out in respective field, and in the evaluation process, a worker can also carry out certain adjustment on some regular evaluation parameters according to needs, so that the evaluation accuracy is improved, and finally the evaluation result value of the water feed pump is output to be higher.
In one embodiment, the water-feeding pump state evaluation and operation and maintenance system based on real-time data and based on data fusion further comprises an equipment reliability analysis module connected with the evaluation construction and execution module 30 and used for deducing the reason of fault inference of the water-feeding pump step by step according to a fault tree analysis method, determining the basic type of a fault mode, finding the root cause of the fault, extracting fault characteristic parameters and establishing an equipment state monitoring index system, wherein the evaluation construction and execution module 30 evaluates the state of the water-feeding pump through the equipment state monitoring index system.
By establishing the equipment state monitoring index system, the evaluation construction and execution module 30 evaluates the state of the feed pump through the equipment state monitoring index system, so that the evaluation efficiency is higher, the corresponding maintenance suggestions and operation and maintenance suggestions have higher values, and the maintenance efficiency is improved.
In order to solve the technical problem, in an embodiment of the invention, the real-time data-based water-feeding pump state evaluation and operation and maintenance system based on data fusion further comprises a data cleaning module connected with the state monitoring module 20, and the data cleaning module is used for extracting the device characteristics to obtain the device characteristic parameters after the on-line data real-time data is subjected to dead value removal, off-line data removal repetition and invalid data cleaning.
It should be noted that, the invention does not limit how to perform the feature extraction after the on-line data is denoised to obtain the monitoring value, the change rate and the correlation, and may adopt some existing processing modes, or adopt a self-defined rule mode to process, or adopt other modes to count the early warning frequency of the early warning data, and may only count the frequency when the fault is early warned, or may also count the early warning when the equipment is about to break down, and certainly, the invention does not limit the invention to extract the patrol information and the working condition information of the off-line data, and may also perform the adaptive extraction.
In the evaluation process, since the evaluation effect is affected by the relative change of the value of the device caused by various reasons, such as objective reasons, such as flood, economic uplink and downlink, subjective reasons, such as adding additional devices, and the like, even if the evaluation of a single attribute of a device changes with time, the weight occupied by each of multiple attributes also changes, so that it is very important how to set the weight and how to accurately evaluate each attribute, in one embodiment, the real-time data-based water-feeding pump state evaluation and operation and maintenance system further comprises a weight index input module connected with the evaluation construction and execution module 30, for integrating the state of the water-feeding pump according to the inputted weight indexes of the economic performance degradation index, the device safety performance index and the device life index, and outputting the evaluation result of the feed pump.
Through the weight of each index of input, carry out comprehensive evaluation, it has the soul more to obtain the evaluation result like this, just can accord with maintainer current fortune dimension operation more. For example, the economic index of a water supply pump for many years is continuously reduced, if the water supply pump is in short supply on the market, the economic efficiency is increased, and correspondingly, if other changes occur, other attributes are changed, so that the obtained evaluation result of the water supply pump is more effective, and the value of a correspondingly made operation and maintenance strategy is higher.
In summary, the method and the system for evaluating the state of the water-feeding pump and performing operation and maintenance based on data fusion based on real-time data provided by the embodiment of the invention comprehensively evaluate the state of the water-feeding pump equipment from three dimensions of equipment safety index, economic index and equipment life index, overcome the defects of the conventional single evaluation system, and more scientifically and reasonably guide the operation and maintenance work of the equipment in the whole life cycle.
The method and the system for evaluating the state and operating and maintaining the water feeding pump based on the real-time data and the data fusion are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A water supply pump state evaluation and operation and maintenance method based on data fusion is characterized by comprising the following steps:
step 1, acquiring online data of an SIS system, early warning data of an early warning system and offline data of a point inspection system of a water feeding pump in a preset time period according to a received evaluation instruction;
step 2, fusing the online data, the early warning data and the offline data, and extracting the equipment characteristics to obtain equipment characteristic parameters;
step 3, establishing an evaluation model according to the existing standard and an expert database;
step 4, evaluating the state of the water feeding pump from economy, safety and service life by adopting the evaluation model and combining the equipment characteristic parameters, and outputting the evaluation result of the water feeding pump;
and 5, selecting a combination mode of equipment operation, an equipment operation mode and a combination service life analysis result of the parts with potential fault characteristics according to the feed pump evaluation result and the output of the feed pump system.
2. The water supply pump state evaluation and operation and maintenance method based on data fusion as claimed in claim 1, wherein the step 2 further comprises:
and denoising the online data, then extracting features to obtain a monitoring value, a change rate and correlation, counting the early warning frequency of the early warning data, and extracting the routing inspection information and the working condition information of the offline data.
3. The water supply pump state evaluation and operation and maintenance method based on data fusion as claimed in claim 2, wherein the step 4 comprises:
and performing weighted calculation on the economic performance degradation index, the safety performance index and the equipment service life index of the water supply pump by adopting the evaluation model to obtain an equipment comprehensive performance index which is used as the water pump evaluation result for output.
4. The water supply pump state evaluation and operation and maintenance method based on data fusion as claimed in claim 3, wherein the step 4 further comprises:
establishing an economic index parameter benchmarking library according to the historical operation data of the water supply pump and expert experience information, and calculating a relative value of performance degradation;
and calculating an economic performance degradation index by comparing the equipment degradation loss and the maintenance cost, adding the economic performance degradation index into the water pump evaluation result, and outputting the water pump evaluation result.
5. The method for evaluating the state and the operation and maintenance of the water feeding pump based on the data fusion as claimed in claim 4, wherein the evaluation result is a multi-grade evaluation result or an index evaluation result.
6. A water supply pump state evaluation and operation and maintenance system based on data fusion is characterized by comprising:
the numerical value acquisition module is used for acquiring online data of the SIS system, early warning data of the early warning system and offline data of the point inspection system of the water feeding pump in a preset time period according to the received evaluation instruction;
the state monitoring module is connected with the numerical value acquisition module and is used for fusing the online data, the early warning data and the offline data and extracting the equipment characteristics to obtain equipment characteristic parameters;
the evaluation construction and execution module is connected with the state monitoring module and used for establishing an evaluation model according to the existing standard and an expert database, evaluating the state of the water feeding pump from economy, safety and service life by adopting the evaluation model and combining the equipment characteristic parameters, and outputting the evaluation result of the water feeding pump;
and the operation and maintenance strategy output module is connected with the evaluation construction and execution module and used for making a maintenance strategy according to the water supply pump evaluation result and by combining with the water supply pump system output selection equipment operation combination mode, equipment operation mode and the service life analysis result of the parts with potential fault characteristics.
7. The water supply pump state evaluation and operation and maintenance system based on data fusion of claim 6, wherein the evaluation construction and execution module comprises:
the economic analysis unit is used for establishing an economic index parameter benchmarking library according to historical equipment operation data and expert experience information of the water supply pump, calculating a relative value of performance degradation, and calculating an economic performance degradation index by comparing equipment degradation loss and maintenance cost;
the equipment safety analysis unit is used for weighting and calculating an equipment safety performance index according to the historical typical fault type of the water feeding pump and the influence degree of the equipment characteristic parameter on safety;
the equipment life analysis unit is used for establishing estimation and outputting an equipment life index on the basis of the historical overhaul data and the replacement cycle of spare parts recommended by a manufacturer by taking an equipment account as a basis;
and the equipment state comprehensive evaluation unit is connected with the economic performance analysis unit, the equipment safety analysis unit and the equipment service life analysis unit, and is used for synthesizing the state of the water feeding pump according to the economic performance degradation index, the equipment safety performance index and the equipment service life index according to a preset rule and outputting the evaluation result of the water feeding pump.
8. The water-feeding pump state evaluation and operation and maintenance system based on data fusion of claim 7, further comprising an equipment reliability analysis module connected to the evaluation construction and execution module, for deducing the cause of the water-feeding pump failure step by step according to a fault tree analysis method, determining the basic type of the failure mode, finding the root cause of the failure, extracting the characteristic parameters of the failure, and establishing an equipment state monitoring index system, wherein the evaluation construction and execution module evaluates the state of the water-feeding pump through the equipment state monitoring index system.
9. The water-feeding pump state evaluation and operation and maintenance system based on data fusion as claimed in claim 8, further comprising a data cleaning module connected to the state monitoring module, and configured to perform device feature extraction by the state monitoring module after performing data cleaning on the online data real-time data elimination dead value and the offline data elimination repeated and invalid data to obtain device feature parameters.
10. The water supply pump state evaluation and operation and maintenance system based on data fusion of claim 9, further comprising a weight index input module connected with the evaluation construction and execution module, and configured to integrate the state of the water supply pump according to the input weight indexes of the economic performance degradation index, the equipment performance index and the equipment life index, and output the evaluation result of the water supply pump.
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