CN112329237A - Method and system for comprehensively judging state of water feeding pump - Google Patents
Method and system for comprehensively judging state of water feeding pump Download PDFInfo
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Abstract
The invention discloses a method and a system for comprehensively judging the state of a water feeding pump, wherein the method comprises the following steps of 1, determining corresponding structural information of the water feeding pump according to a received state evaluation instruction; step 2, splitting the water feed pump into a plurality of parts which can not be decomposed again according to the structural information of the water feed pump; step 3, extracting the features of the component to obtain component features; step 4, evaluating the component according to the component characteristics and outputting a component evaluation result; and 5, comprehensively judging the equipment state of the water supply pump according to the evaluation result of the component, and outputting an equipment state evaluation result. By extracting the component characteristics of each undecomposed component of the water feed pump, evaluating the component characteristics and finally evaluating the component characteristics in a whole, neglected details can be avoided from being ignored, an optimal water feed pump state diagnosis report can be obtained, and the maintenance efficiency is improved.
Description
Technical Field
The invention relates to the technical field of water supply pump management of thermal power stations, in particular to a method and a system for comprehensively judging the state of a water supply pump.
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 feed water pump has an important position in the generator set, and the operation reliability of the feed water pump is closely related to that of the generator set. And the equipment inevitably has faults in operation, and when the faults occur, maintenance personnel only know that the equipment has the faults and do not know the severity of the faults, if the service life of the water feeding pump after maintenance is equivalent to the cost of equipment maintenance, the equipment operation efficiency can reach the expected effect after maintenance.
Therefore, the state of the feed pump needs to be comprehensively judged, and guidance is provided for operation and maintenance through comprehensive evaluation, so that the operation efficiency of the equipment reaches the maximum cost-effectiveness ratio, and the maintenance cost is reduced.
Disclosure of Invention
The invention aims to provide a method and a system for comprehensively judging the state of a water feeding pump, which are used for evaluating the state of the water pump from multiple aspects, providing more accurate basic data for operation and maintenance and improving the efficiency and quality of the operation and maintenance.
In order to solve the above technical problem, an embodiment of the present invention provides a method for comprehensively determining a state of a feed pump, including:
step 1, determining corresponding structural information of a water feeding pump according to a received state evaluation instruction;
step 2, splitting the water feed pump into a plurality of parts which can not be decomposed again according to the structural information of the water feed pump;
step 3, extracting the features of the component to obtain component features;
step 4, evaluating the component according to the component characteristics and outputting a component evaluation result;
and 5, comprehensively judging the equipment state of the water supply pump according to the evaluation result of the component, and outputting an equipment state evaluation result.
Wherein the step 4 comprises:
and respectively evaluating the safety, the economical efficiency and the residual life of the component according to the component characteristics, and then carrying out comprehensive evaluation to obtain the component evaluation result.
Wherein, after the step 4, the method further comprises:
and selecting a combination mode of equipment operation and an equipment operation mode according to the equipment state evaluation result, and making and outputting a maintenance strategy for the component with the potential fault characteristic by combining the service life analysis result.
Wherein, after the step 4, the method further comprises:
and outputting the risky components of the feed water pump, the overproof state quantities corresponding to the risky components, the faults to be caused, the residual service life and the operation and maintenance scheme generated according to the preset maintenance scheme and preset rules according to the equipment state evaluation result.
Wherein, after the step 4, the method further comprises:
carrying out grade evaluation on the component by combining the evaluation result to obtain a grade evaluation result;
combining the evaluation result with the part to perform maintenance price evaluation to obtain a part maintenance price;
and outputting the grade evaluation results and the component maintenance prices corresponding to all the components and the water supply pump obtained through calculation as a maintenance evaluation report.
In addition, an embodiment of the present invention further provides a system for comprehensively determining a state of a feed pump, including:
the component information generation module is used for determining corresponding water supply pump structure information according to the received state evaluation instruction and dividing the water supply pump into a plurality of components which can not be decomposed again according to the water supply pump structure information;
the component feature extraction module is connected with the component information generation module and used for extracting features of the component to obtain component features;
the component evaluation module is connected with the component feature extraction module and used for evaluating the component according to the component features and outputting a component evaluation result;
and the comprehensive evaluation module is connected with the component evaluation module and used for comprehensively judging the equipment state of the water supply pump according to the evaluation results of all the components and outputting an equipment state evaluation result.
The system also comprises an evaluation mode selection module connected with the component evaluation module, and the component evaluation module is controlled to evaluate at least one of the safety, the economy and the residual life of the component according to the component characteristics and then carry out comprehensive evaluation to obtain the component evaluation result.
The comprehensive evaluation module is used for evaluating the state of the equipment, and the comprehensive evaluation module is used for evaluating the state of the equipment according to the state of the equipment and analyzing the service life of the parts with potential fault characteristics.
The comprehensive evaluation system comprises a comprehensive evaluation module, a risk component operation and maintenance module and an operation and maintenance scheme generation module, wherein the comprehensive evaluation module is connected with the comprehensive evaluation module and is used for outputting the risky components of the feed pump, the overproof state quantities corresponding to the risky components, the faults to be caused, the residual life and the operation and maintenance scheme generated according to a preset maintenance scheme and a preset rule according to the equipment state evaluation result.
The comprehensive evaluation module is connected with the water supply pump, and is used for evaluating the components according to the evaluation results to obtain a grade evaluation result, evaluating the maintenance prices of the components according to the evaluation results and the maintenance prices of the components, and outputting the grade evaluation results and the maintenance prices of the components corresponding to all the components and the water supply pump obtained through calculation as a maintenance evaluation report.
Compared with the prior art, the method and the system for comprehensively judging the state of the water feeding pump have the following advantages that:
according to the method and the system for comprehensively judging the state of the water feeding pump, the component characteristics of each undegradable component of the water feeding pump are extracted, the components are evaluated, and finally the components are evaluated integrally, so that some details can be prevented from being ignored, an optimal water feeding pump state diagnosis report can be obtained, and the maintenance efficiency can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic flow chart illustrating steps of a method for comprehensively determining the state of a water pump according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an embodiment of a system for comprehensively judging a state of a feed pump 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. 1-2, fig. 1 is a schematic flow chart illustrating steps of a method for comprehensively determining a state of a water pump according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of an embodiment of a system for comprehensively judging a state of a feed pump according to an embodiment of the present invention.
In one embodiment, the method for comprehensively judging the state of the water supply pump comprises the following steps:
step 1, determining corresponding structural information of a water feeding pump according to a received state evaluation instruction;
step 2, splitting the water feed pump into a plurality of parts which can not be decomposed again according to the structural information of the water feed pump;
step 3, extracting the features of the component to obtain component features;
step 4, evaluating the component according to the component characteristics and outputting a component evaluation result;
and 5, comprehensively judging the equipment state of the water supply pump according to the evaluation result of the component, and outputting an equipment state evaluation result.
By extracting the component characteristics of each undecomposed component of the water feed pump, evaluating the component characteristics and finally evaluating the component characteristics on the whole, some details can be prevented from being ignored, an optimal water feed pump state diagnosis report can be obtained, and the maintenance efficiency can be improved.
In order to further improve the evaluation effect of the component so as to provide a reference for subsequent operation and maintenance, in an embodiment, the step 4 includes:
and respectively evaluating the safety, the economical efficiency and the residual life of the component according to the component characteristics, and then carrying out comprehensive evaluation to obtain the component evaluation result.
By evaluating the safety, the economy and the service life of the feed pump from the component level, the total state of the feed pump is more accurate, the state of the feed pump is not obtained only on the appearance or the surface like other schemes, if the rotating speed is lowered due to faults, but the effect of which component is caused cannot be known, the maintenance is carried out from where, the maintenance cost is geometric, how long the maintenance time is needed is not clear, and the problem of difficult maintenance cannot be solved fundamentally.
The invention does not limit the review process of each part and the weight of each attribute in the review process, and the weight of each attribute of each different part can be the same or different, can be preset or can be customized.
After obtaining the device status evaluation result, in order to further improve the use value thereof, after the step 4, the method further comprises:
and selecting a combination mode of equipment operation and an equipment operation mode according to the equipment state evaluation result, and making and outputting a maintenance strategy for the component with the potential fault characteristic by combining the service life analysis result.
The operation and maintenance mode is selected according to the preset rule through the equipment state evaluation result, so that the time consumed in the operation and maintenance decision process can be reduced, the operation and maintenance efficiency is improved, even the operation and maintenance automation is realized, and the equipment operation efficiency is further improved.
Since there must be wearing parts and durable parts in the water supply pump, and the wearing parts and the durable parts are different in use, it may happen that the former is completely worn and cannot be used, and the latter is hardly worn, and even if the wearing parts are the same, the wearing degrees are different, the values are different, and the maintenance values are different, so as to provide more basic data for the maintenance of the maintenance personnel, in an embodiment, after the step 4, the method further includes:
and outputting the risky components of the feed water pump, the overproof state quantities corresponding to the risky components, the faults to be caused, the residual service life and the operation and maintenance scheme generated according to the preset maintenance scheme and preset rules according to the equipment state evaluation result.
Through the operation and maintenance scheme of output, maintainer can know which kind of mode need be adopted to this time part and maintain, whether maintenance or change, maintenance value is what, and which kind of price/performance ratio is higher, has improved operation and maintenance decision-making efficiency.
Furthermore, in order to improve the overall maintenance efficiency of the equipment, after the step 4, the method further comprises:
carrying out grade evaluation on the component by combining the evaluation result to obtain a grade evaluation result;
combining the evaluation result with the part to perform maintenance price evaluation to obtain a part maintenance price;
and outputting the grade evaluation results and the component maintenance prices corresponding to all the components and the water supply pump obtained through calculation as a maintenance evaluation report.
Through the maintenance evaluation report, maintenance personnel can know the states of all parts of the water pump at a glance, how to maintain, the total maintenance cost and the like, and convenience is provided for operation and maintenance decisions.
In addition, the embodiment of the invention also provides a system for comprehensively judging the state of the feed pump, which comprises the following components:
the component information generation module 10 is used for determining corresponding water supply pump structure information according to the received state evaluation instruction, and dividing the water supply pump into a plurality of components which can not be decomposed again according to the water supply pump structure information;
the component feature extraction module 20 is connected with the component information generation module 10 and is used for performing feature extraction on the component to obtain component features;
the component evaluation module 30 is connected with the component feature extraction module 20 and used for evaluating the component according to the component features and outputting a component evaluation result;
and the comprehensive evaluation module 40 is connected with the component evaluation module 30 and is used for comprehensively judging the equipment state of the feed water pump according to the evaluation results of all the components and outputting an equipment state evaluation result.
The system for comprehensively judging the state of the water-feeding pump is a system corresponding to the method for comprehensively judging the state of the water-feeding pump, and has the same beneficial effects, and the details are not repeated in the invention.
In order to further improve the evaluation effect on the components so as to provide reference for subsequent operation and maintenance, in one embodiment, the system for comprehensively judging the state of the water supply pump further comprises an evaluation mode selection module connected with the component evaluation module 30, and the component evaluation module 30 is controlled to evaluate at least one of the safety, the economy and the residual life of the components according to the component characteristics and then comprehensively evaluate to obtain the component evaluation result.
By evaluating the safety, the economy and the service life of the feed pump from the component level, the total state of the feed pump is more accurate, the state of the feed pump is not obtained from the appearance or the surface like other schemes, if the rotating speed is lowered due to faults, the effect caused by which component cannot be obtained, the maintenance is performed from where, the maintenance cost is geometric, how long the maintenance time needs is unclear, and the problem of difficult maintenance cannot be solved fundamentally.
The method is not limited in the process of commenting each component and the weight of each attribute in the process of commenting, and the weight of each attribute of each different component can be the same or different, can be preset or can be self-defined.
It should be noted that, the present invention is not limited to the specific structure, and may be disassembled from the electronic structure as long as the operation parameters are obtained.
After the device state evaluation result is obtained, in order to further improve the use value of the device state evaluation result, in one embodiment, the system for comprehensively judging the state of the feed water pump further comprises an operation and maintenance strategy output module connected with the comprehensive evaluation module 40, and the operation and maintenance strategy output module is used for selecting a combination mode of device operation, a device operation mode and a service life analysis result for a component with potential fault characteristics according to the device state evaluation result and making a maintenance strategy to be output as the operation and maintenance strategy.
The operation and maintenance mode is selected according to the preset rule through the equipment state evaluation result, so that the time consumed in the operation and maintenance decision process can be reduced, the operation and maintenance efficiency is improved, even the operation and maintenance automation is realized, and the equipment operation efficiency is further improved.
Since there are wearing parts and durable parts in the water supply pump, and the wearing parts and the durable parts are different in use, the former may be completely worn and cannot be used, and the latter is almost not worn, and even if the wearing parts are wearing parts, the wearing degrees are different, the values are different, and the maintenance values are different, so that in order to provide more basic data for the maintenance of maintenance personnel, in one embodiment, the system for comprehensively judging the state of the water supply pump further comprises a risk component operation and maintenance module connected with the comprehensive evaluation module 40, and the risk component operation and maintenance module is used for outputting the dangerous components of the water supply pump and the overproof state quantity, the faults to be caused, the residual life and the operation and maintenance scheme generated according to the preset maintenance scheme according to the preset rules according to the equipment state evaluation result.
Through the operation and maintenance scheme of output, maintainer can know which kind of mode need be adopted to this time part and maintain, whether maintenance or change, maintenance value is what, and which kind of price/performance ratio is higher, has improved operation and maintenance decision-making efficiency.
Furthermore, in order to improve the overall maintenance efficiency of the equipment, in an embodiment, the system for comprehensively judging the state of the water supply pump further includes an operation and maintenance evaluation module connected to the comprehensive evaluation module 40, and configured to perform a grade evaluation on the components in combination with the evaluation results to obtain a grade evaluation result, perform a maintenance price evaluation on the components in combination with the evaluation results and the maintenance prices of the components to obtain a maintenance price of the components, and output the grade evaluation results and the maintenance prices of the components corresponding to all the components and the water supply pump obtained through calculation as a maintenance evaluation report.
Through the maintenance evaluation report, maintenance personnel can know the states of all parts of the water pump at a glance, how to maintain, the total maintenance cost and the like, and convenience is provided for operation and maintenance decisions.
In summary, according to the method and the system for comprehensively judging the state of the water-feeding pump provided by the embodiment of the invention, the component characteristics of each non-decomposable component of the water-feeding pump are extracted and evaluated, and finally the evaluation is carried out on the whole, so that some details can be avoided from being ignored, an optimal water-feeding pump state diagnosis report can be obtained, and the maintenance efficiency can be improved.
The method and system for comprehensively judging the state of the water feeding pump provided by the invention 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 method for comprehensively judging the state of a water supply pump is characterized by comprising the following steps:
step 1, determining corresponding structural information of a water feeding pump according to a received state evaluation instruction;
step 2, splitting the water feed pump into a plurality of parts which can not be decomposed again according to the structural information of the water feed pump;
step 3, extracting the features of the component to obtain component features;
step 4, evaluating the component according to the component characteristics and outputting a component evaluation result;
and 5, comprehensively judging the equipment state of the water supply pump according to the evaluation result of the component, and outputting an equipment state evaluation result.
2. The method for comprehensively judging the state of the water feed pump as claimed in claim 1, wherein the step 4 comprises:
and respectively evaluating the safety, the economical efficiency and the residual life of the component according to the component characteristics, and then carrying out comprehensive evaluation to obtain the component evaluation result.
3. The method for comprehensively judging the state of the water feed pump according to claim 2, characterized by further comprising, after the step 4:
and selecting a combination mode of equipment operation and an equipment operation mode according to the equipment state evaluation result, and making and outputting a maintenance strategy for the component with the potential fault characteristic by combining the service life analysis result.
4. The method for comprehensively judging the state of the water feed pump according to claim 3, characterized by further comprising, after the step 4:
and outputting the risky components of the feed water pump, the overproof state quantities corresponding to the risky components, the faults to be caused, the residual service life and the operation and maintenance scheme generated according to the preset maintenance scheme and preset rules according to the equipment state evaluation result.
5. The method for comprehensively judging the state of the water-feeding pump according to claim 4, characterized by further comprising, after the step 4:
carrying out grade evaluation on the component by combining the evaluation result to obtain a grade evaluation result;
combining the evaluation result with the part to perform maintenance price evaluation to obtain a part maintenance price;
and outputting the grade evaluation results and the component maintenance prices corresponding to all the components and the water supply pump obtained through calculation as a maintenance evaluation report.
6. The system for comprehensively judging the state of the water feeding pump is characterized by comprising:
the component information generation module is used for determining corresponding water supply pump structure information according to the received state evaluation instruction and dividing the water supply pump into a plurality of components which can not be decomposed again according to the water supply pump structure information;
the component feature extraction module is connected with the component information generation module and used for extracting features of the component to obtain component features;
the component evaluation module is connected with the component feature extraction module and used for evaluating the component according to the component features and outputting a component evaluation result;
and the comprehensive evaluation module is connected with the component evaluation module and used for comprehensively judging the equipment state of the water supply pump according to the evaluation results of all the components and outputting an equipment state evaluation result.
7. The system for comprehensively judging the state of a feed water pump according to claim 6, further comprising an evaluation mode selection module connected with the component evaluation module, wherein the component evaluation module is controlled to perform comprehensive evaluation after performing evaluation on at least one of safety, economy and residual life of the component according to the component characteristics to obtain the component evaluation result.
8. The system for comprehensively judging the state of the water feeding pump as claimed in claim 7, further comprising an operation and maintenance strategy output module connected with the comprehensive evaluation module and used for selecting a combination mode of equipment operation, an equipment operation mode according to the equipment state evaluation result and making a maintenance strategy for the component with the potential fault characteristic and combining the service life analysis result and outputting the maintenance strategy as the operation and maintenance strategy.
9. The system for comprehensively judging the state of a feed water pump as claimed in claim 8, further comprising a risk component operation and maintenance module connected with the comprehensive evaluation module for outputting the dangerous components of the feed water pump and the out-of-standard state quantities corresponding to the dangerous components, the faults to be caused, the residual life and the operation and maintenance scheme generated according to preset rules according to a preset maintenance scheme according to the equipment state evaluation result.
10. The system for comprehensively judging the state of a water supply pump according to claim 9, further comprising an operation and maintenance evaluation module connected to the comprehensive evaluation module, for performing a grade evaluation on the components in combination with the evaluation results to obtain a grade evaluation result, performing a maintenance price evaluation on the components in combination with the evaluation results to obtain a component maintenance price, and outputting the grade evaluation results and the component maintenance prices corresponding to all the components and the water supply pump obtained through calculation as a maintenance evaluation report.
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