CN118884093B - Low-temperature detection method and device based on cable processing - Google Patents
Low-temperature detection method and device based on cable processing Download PDFInfo
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Abstract
The invention discloses a low-temperature detection method and device based on cable processing, and relates to the technical field of low-temperature detection. The low-temperature detection method and device based on cable processing are used for carrying out reliability assessment on low-temperature detection equipment based on performance index information analysis of the low-temperature detection equipment obtained by monitoring simulated cable low-temperature detection, judging whether the low-temperature detection equipment is suitable for actual cable low-temperature detection, monitoring a low-temperature detection process of a target processing cable, obtaining low-temperature detection environment temperature and cable performance change data in the monitoring process, analyzing the cable performance change data, assessing low-temperature adaptability and reliability of the target processing cable, and generating a low-temperature detection report of the target processing cable according to low-temperature adaptability and reliability assessment results of the target processing cable. According to the method, a data processing means is adopted for low-temperature detection of the cable, and data is used for evaluation, so that the detection is more accurate and reliable.
Description
Technical Field
The invention relates to the technical field of low-temperature detection, in particular to a low-temperature detection method and device based on cable processing.
Background
In many industrial fields, such as chemical industry, refrigeration industry, liquefied natural gas industry, etc., monitoring and detecting performance of cables in low temperature environments are required, and these industries have extremely high requirements on reliability and safety of cables, so that development of an effective detection method suitable for low temperature environments is required.
For cable detection in low-temperature environment, the traditional method has the problems of energy waste or low efficiency, so researchers need to develop a detection method capable of avoiding low-temperature air leakage to the greatest extent, saving energy and being efficient so as to meet the requirements of industrial application, the cable detection in low-temperature environment faces a plurality of technical challenges including the influence of temperature change on detection precision and the performance stability of equipment in low-temperature environment, and after the cable detection in low-temperature environment is carried out, the cable needs to be conveniently taken out for repair, replacement or other operations, therefore, setting temperature neutralization is an important requirement for conveniently taking out the cable for low-temperature detection, and the convenience and efficiency of operation are expected to be improved.
The existing detection method mostly combines equipment and data analysis, can realize more comprehensive and accurate detection, such as the Chinese patent with publication number of CN105865936B, discloses a low-temperature bending detection method for metal materials, which is characterized in that after the metal materials are made into bending samples, the method comprises the steps of installing a low-temperature environment box on a universal testing machine, installing a bending detection device in the box, then carrying out low-temperature bending detection on a sample, recording bending failure angles, and calculating the total bending section rate, the width shrinkage rate and the thickness shrinkage rate of a rectangular sample and the diameter shrinkage rate of a circular sample. By adopting the method, the limitation that the performance of the metal material can only be detected by bending at room temperature in the prior art is expanded, the actual bending condition of the metal material in a low-temperature environment can be simulated, and the performance of the metal steel which can be detected and reflected by the bending detection is more comprehensive.
According to the low-temperature bending detection method for the metal material, comprehensive and accurate detection of the object can be achieved by combining the detection equipment and the data analysis means, so that the problems of energy waste and low efficiency of the traditional method are hopefully solved by combining the data analysis means, and the technical challenges in a low-temperature environment are met, so that the detection accuracy and reliability are improved.
Therefore, in view of the above problems, there is a need for a low temperature detection method and apparatus based on cable processing.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a low-temperature detection method and device based on cable processing, which solve the problems of low efficiency and lack of objective numerical value evaluation in low-temperature detection of cables in the traditional low-temperature detection of cables.
The low-temperature detection method based on the cable processing comprises the following steps of carrying out reliability assessment on low-temperature detection equipment based on performance index information analysis of the low-temperature detection equipment obtained by monitoring simulated cable low-temperature detection, judging whether the low-temperature detection equipment is suitable for actual cable low-temperature detection, monitoring a low-temperature detection process of a target processing cable based on a standard of the low-temperature detection equipment, obtaining low-temperature detection environment temperature and cable performance change data in the monitoring process, analyzing the cable performance change data, assessing the low-temperature adaptability and reliability of the target processing cable, and generating a low-temperature detection report of the target processing cable according to the low-temperature adaptability and reliability assessment result of the target processing cable.
The specific judging mode for judging whether the low-temperature detection equipment is suitable for actual low-temperature detection of the cable is that performance index information of the low-temperature detection equipment is analyzed to obtain an applicability index of the low-temperature detection equipment, a practical requirement threshold of the low-temperature detection equipment is obtained based on low-temperature detection requirement analysis of cable processing, the applicability index of the low-temperature detection equipment is compared with the practical requirement threshold of the low-temperature detection equipment, when the applicability index of the low-temperature detection equipment is larger than or equal to the practical requirement threshold of the low-temperature detection equipment, the low-temperature detection equipment is judged to be suitable for actual low-temperature detection of the cable, when the applicability index of the low-temperature detection equipment is smaller than the practical requirement threshold of the low-temperature detection equipment, the performance index of the low-temperature detection equipment is judged to be unqualified, and an alarm mechanism is used for sending prompt short messages to prompt maintenance personnel to optimize the performance of the low-temperature detection equipment.
The method comprises the steps of obtaining performance index requirements of low-temperature detection equipment, carrying out cable simulation low-temperature detection on the low-temperature detection equipment, carrying out comprehensive analysis on the performance index information of the low-temperature detection equipment based on the performance index information of the low-temperature detection equipment obtained in the cable simulation low-temperature detection process, and obtaining the suitability index of the low-temperature detection equipment by carrying out corresponding analysis on the performance index information of the low-temperature detection equipment by combining the performance index requirements, the temperature debugging requirements and the performance stability index information with the performance index information, the temperature debugging index information and the operation stability index information, wherein the performance index requirements of the low-temperature detection equipment specifically comprise the performance index, the temperature debugging index and the operation stability index, and carrying out comprehensive analysis on the performance index information of the low-temperature detection equipment based on the performance index information of the low-temperature detection equipment obtained in the cable simulation low-temperature detection process, wherein the suitability index of the low-temperature detection equipment is used for quantifying the low-temperature detection equipment.
The specific analysis process for the cable simulation low-temperature detection of the low-temperature detection equipment comprises the steps of obtaining initial states of the simulation cable and the low-temperature detection equipment, wherein the initial states comprise initial temperatures of the simulation cable, initial lengths of the simulation cable, initial surface conditions of the simulation cable and initial temperatures of a low-temperature cavity of the low-temperature detection equipment, monitoring temperature changes of the simulation cable in the low-temperature detection equipment and performance index information changes of the low-temperature detection equipment, collecting temperature data of the surface of the simulation cable and performance index information of the low-temperature detection equipment in real time, analyzing the temperature data of the surface of the simulation cable in real time, identifying temperature abnormal conditions of the simulation cable, and generating a simulation detection report according to identification results.
Further, the tightness index information specifically comprises a temperature leakage rate and a water seepage rate, the temperature debugging index information specifically comprises a temperature debugging precision, a temperature adjusting speed and a temperature adjusting uniformity, and the operation stability index information specifically comprises a continuous operation duration and a fault rate.
The specific analysis process for evaluating the low-temperature adaptability and the reliability of the target processing cable comprises the steps of obtaining initial information of the target processing cable, monitoring the low-temperature detection process of the target processing cable in real time, obtaining cable low-temperature detection performance parameters, comparing the initial information of the target processing cable with the cable low-temperature detection performance parameters to obtain cable performance change data, analyzing according to the cable performance change data to obtain a low-temperature performance change evaluation value of the target processing cable, obtaining a cable low-temperature detection performance change threshold value based on the low-temperature detection reliability requirement of the cable, comparing and analyzing the low-temperature performance change evaluation value of the target processing cable with the cable low-temperature detection performance change threshold value, and marking the low-temperature adaptability and the reliability of the target processing cable as if the low-temperature performance change evaluation value of the target processing cable is smaller than or equal to the cable low-temperature detection performance change threshold value, and marking the low-temperature adaptability and the reliability of the target processing cable as not as if the low-temperature performance change evaluation value of the target processing cable is larger than the cable low-temperature detection performance change threshold value.
Further, the cable performance change data specifically comprise tensile type variable of the target processing cable, instantaneous tension of fracture of the target processing cable and surface crack increment of the target processing cable after low-temperature detection.
Further, the specific calculation formula of the low-temperature performance change evaluation value of the target processed cable is:
In the middle of An evaluation value indicating a change in low-temperature performance of the target processed cable,Represents the tensile variable of the target processed cable,Indicating the instantaneous pull at break of the target processed cable,Indicating the increase of surface cracks of the target processed cable after low-temperature detection,A reference value representing a tensile variable,A reference value representing the instantaneous tension at break,A reference value indicating the amount of surface crack growth,The weight factor representing the tensile variable,A weight factor representing the instantaneous pull at break,A weight factor representing the amount of surface crack growth.
Further, the low-temperature detection report of the target processing cable specifically comprises the temperature set by a low-temperature cavity of the low-temperature detection device, initial information of the target processing cable, cable low-temperature detection performance parameters of the target processing cable, cable performance change data of the target processing cable, and evaluation marking results of low-temperature adaptability and reliability of the target processing cable.
A low-temperature detection device based on cable processing comprises a processor, a low-temperature detection feasibility assessment module, a data acquisition module, a data analysis module and a report generation module, wherein the processor is used for processing computer program instructions stored in an execution memory during operation, the low-temperature detection feasibility assessment module is used for carrying out reliability assessment on low-temperature detection equipment based on performance index information analysis of the low-temperature detection equipment obtained by monitoring analog cable low-temperature detection, judging whether the low-temperature detection equipment is suitable for actual cable low-temperature detection, the data acquisition module is used for judging a standard suitable for actual cable low-temperature detection based on the low-temperature detection equipment, monitoring a low-temperature detection environment temperature and cable performance change data in the monitoring process, the data analysis module is used for carrying out analysis on the cable performance change data, assessing the low-temperature adaptability and reliability of the target processing cable, and the report generation module is used for generating a low-temperature detection report of the target processing cable according to low-temperature adaptability and reliability assessment results of the target processing cable.
The invention has the following beneficial effects:
(1) The low-temperature detection method and the device based on the cable processing ensure that the selected equipment can accurately and reliably monitor the performance change of the cable in the low-temperature environment through the evaluation of the performance of the low-temperature detection equipment and the determination of the standard, thereby improving the detection accuracy and reliability, and can timely find the possible problems or potential risks of the cable in the low-temperature environment through the analysis and evaluation of the performance change data of the cable, thereby avoiding the faults or accidents caused by the performance reduction of the cable, saving the maintenance and replacement cost and reducing the downtime, and can provide the performance and the safety evaluation of the cable in the low-temperature environment for users through generating a low-temperature detection report, help the users to better know the use limit and the attention of the cable, and improve the use safety of the cable
(2) According to the low-temperature detection method and device based on cable processing, the reliability of low-temperature detection equipment is considered for low-temperature detection of a target processing cable by adopting a data processing technical means, the tightness requirement, the temperature debugging requirement, the operation stability requirement, the tightness index information, the temperature debugging index information and the operation stability index information are comprehensively combined to carry out corresponding analysis, the indexes of the low-temperature detection equipment are obtained, the indexes of the low-temperature detection equipment are met, the tightness index is met, the temperature debugging index is met, the operation stability index is met, the indexes are comprehensively analyzed, the applicability of the low-temperature detection equipment is met through the tightness index, the temperature debugging index is met, the operation stability index is met, the low-temperature detection adaptability degree of the low-temperature detection equipment applied to the cable is quantized, the low-temperature detection accuracy is further guaranteed, the low-temperature adaptability and the reliability of the target processing cable are estimated by utilizing the low-temperature performance change estimation value of the cable obtained by analyzing the change data of the cable performance in the low-temperature detection process, the design and the production process of the cable can be provided with reference opinion, the low-temperature environment adaptability of the cable is improved, and the low-temperature environment adaptability of the cable is improved.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
Fig. 1 is a flow chart of a low-temperature detection method based on cable processing.
Fig. 2 is a block diagram of a low temperature detecting device based on cable processing according to the present invention.
FIG. 3 is a graph showing the effect of the low temperature detection device according to the present invention on the various parameters of the index calculation formula.
Detailed Description
The embodiment of the application solves the problems of low efficiency and lack of objective numerical evaluation in low-temperature detection of cables in traditional cable low-temperature detection by a low-temperature detection method and device based on cable processing.
The problems in the embodiment of the application have the following general ideas:
the method comprises the steps of obtaining performance index information of low-temperature detection equipment by monitoring low-temperature detection of a simulated cable, carrying out reliability assessment on the low-temperature detection equipment through analysis of the information, judging whether the low-temperature detection equipment is suitable for actual low-temperature detection of the cable, determining a standard suitable for the low-temperature detection of the actual cable based on judgment of the low-temperature detection equipment, then monitoring environment temperature and change data of cable performance in the low-temperature detection process of the actual cable, analyzing the monitored data, assessing adaptability and reliability of a target processing cable in a low-temperature environment, and finally generating a low-temperature detection report according to low-temperature adaptability and reliability assessment results of the target processing cable.
Referring to fig. 1, an embodiment of the invention provides a low temperature detection method based on cable processing, which includes the steps of performing reliability assessment on low temperature detection equipment based on performance index information analysis of the low temperature detection equipment obtained by monitoring analog cable low temperature detection, judging whether the low temperature detection equipment is suitable for actual cable low temperature detection, monitoring a low temperature detection process of a target processing cable based on a standard of the low temperature detection equipment judgment suitable for actual cable low temperature detection, acquiring low temperature detection environment temperature and cable performance change data in the monitoring process, analyzing the cable performance change data, assessing low temperature adaptability and reliability of the target processing cable, and further generating a low temperature detection report of the target processing cable according to the low temperature adaptability and reliability assessment result of the target processing cable.
The specific judging mode for judging whether the low-temperature detection equipment is suitable for actual low-temperature detection of the cable is that performance index information of the low-temperature detection equipment is analyzed to obtain an applicability index of the low-temperature detection equipment, a practical requirement threshold of the low-temperature detection equipment is obtained based on low-temperature detection requirement analysis of cable processing, the applicability index of the low-temperature detection equipment is compared with the practical requirement threshold of the low-temperature detection equipment, when the applicability index of the low-temperature detection equipment is larger than or equal to the practical requirement threshold of the low-temperature detection equipment, the low-temperature detection equipment is suitable for actual low-temperature detection of the cable, when the applicability index of the low-temperature detection equipment is smaller than the practical requirement threshold of the low-temperature detection equipment, the performance index of the low-temperature detection equipment is judged to be unqualified, and an alarm mechanism is used for sending a prompt message to prompt maintenance personnel to conduct performance optimization on the low-temperature detection equipment.
In the embodiment, performance index information of the low-temperature detection equipment is collected and arranged, wherein the performance index information comprises detection precision, response speed and stability, applicability of the low-temperature detection equipment is evaluated according to existing data to obtain applicability meeting indexes, requirements of actual low-temperature detection of the cable are analyzed, the requirements of the actual low-temperature detection equipment comprise temperature range, detection precision and environmental applicability, practical requirement threshold values of the low-temperature detection equipment are obtained according to requirement analysis, the practical requirement threshold values of the low-temperature detection equipment are specifically obtained in a mode that the actual requirements of the cable low-temperature detection are collected, the temperature range required to be covered by the cable low-temperature detection is determined, the required precision of the cable low-temperature detection on the temperature is determined, environmental conditions possibly faced by the cable low-temperature detection are considered, all requirements are integrated into specific performance indexes, the practical requirement threshold values of all the performance indexes of the low-temperature detection equipment are determined according to actual requirements and application scenes, and technical standards, industry specifications and related experience are combined, and then the practical requirement threshold values of all the performance indexes are comprehensively analyzed, and the practical requirement threshold values of the low-temperature detection equipment are obtained.
The low-temperature detection device and the method have the advantages that the applicability of the low-temperature detection device can be objectively evaluated through the quantized indexes and the thresholds, errors possibly caused by subjective judgment are avoided, the performance indexes of the low-temperature detection device and the actual demand thresholds are compared and analyzed, whether the device meets the actual demands or not can be clearly known, the advantages and disadvantages of different devices can be intuitively compared, the alarm mechanism can timely find out the performance problems of the low-temperature detection device, timely maintain and optimize the low-temperature detection device, normal operation of the device is ensured, resource waste caused by the fact that the performance of the device does not meet the actual demands is avoided, the device can be effectively utilized, and the working efficiency is improved.
The specific analysis process for obtaining the applicability compliance index of the low temperature detection equipment comprises the steps of obtaining various performance index requirements of the low temperature detection equipment, wherein the various performance index requirements comprise a tightness requirement, a temperature debugging requirement and an operation stability requirement, performing cable simulation low temperature detection on the low temperature detection equipment, and obtaining various index compliance indexes of the low temperature detection equipment based on the performance index information of the low temperature detection equipment obtained in the cable simulation low temperature detection process, wherein the performance index information of the low temperature detection equipment comprises tightness index information, temperature debugging index information and operation stability index information, the tightness index information comprises a temperature leakage rate and a water permeability, the temperature debugging index information comprises a temperature debugging precision, a temperature adjusting speed and a temperature adjusting uniformity, the operation stability index information comprises a continuous operation duration and a fault rate, and correspondingly analyzing the various index compliance indexes of the low temperature detection equipment by combining the tightness requirement, the temperature debugging requirement, the operation stability requirement and the tightness index information, the temperature debugging index information and the operation stability index information, wherein the low temperature debugging index compliance indexes comprise the tightness index compliance indexes and the operation stability index compliance indexes, the operation index compliance indexes are respectively, and the operation index compliance indexes are calculated by applying the low temperature detection equipment to obtain the low temperature detection equipment with the applicability compliance index, and the specific analysis value is suitable for obtaining the low temperature detection equipment: In the middle of Indicating the suitability of the cryogenic test plant meets the index,Indicating that the tightness index meets the index,Indicating that the temperature debugging index meets the index,Indicating that the running stability index meets the index,A weight factor indicating that the tightness index meets the index,A weight factor indicating that the temperature tuning index meets an index,Referring to fig. 3, the x-axis represents the values of the tightness index compliance index, the temperature debugging index compliance index, and the operation stability index compliance index, and the y-axis represents the TSB value, and the three broken lines represent the influence of the tightness index compliance index, the temperature debugging index compliance index, and the operation stability index compliance index on the TSB, respectively, and the greater the tightness index compliance index, the temperature debugging index compliance index, and the operation stability index compliance index are, the greater the applicability compliance index of the low temperature detection device is, wherein the example values of the parameters are as follows:
In the embodiment, various performance index requirements of the low-temperature detection equipment are collected and arranged, experimental conditions simulating a low-temperature environment of a cable are set, the low-temperature detection equipment is operated, performance of the low-temperature detection equipment in the simulated low-temperature environment is recorded, performance index information of the low-temperature detection equipment is obtained according to data obtained in a cable simulated low-temperature detection process, the data comprising tightness, temperature debugging and operation stability are obtained, the actually obtained performance index information and the various performance index requirements are correspondingly analyzed to obtain various performance index coincidence indexes, the various performance index coincidence indexes are weighted according to the importance degree of the various performance indexes, the various performance index coincidence indexes are multiplied by corresponding weights, and comprehensive analysis is carried out to obtain the applicability coincidence indexes of the low-temperature detection equipment.
The method comprises quantifying corresponding parameters of each index, determining specific measurement method and standard, determining weight of corresponding parameters of each index according to actual demand and importance, measuring and evaluating corresponding parameters of each index according to set test method and standard, weighting test result of corresponding parameters of each index to obtain index, wherein temperature leakage rate is temperature difference between internal temperature and external environment temperature of low temperature detection device, representing capability of maintaining internal temperature of device, temperature leakage rate is lower, internal temperature of device is more stable, water seepage rate is obtained by setting temperature sensor in device, and monitoring internal and external temperature difference of device, water seepage rate is water seepage amount of low temperature detection device in working state, reflecting sealing performance of device, and is obtained by setting humidity sensor in device, and monitoring humidity sensor change, temperature accuracy represents temperature accuracy of low temperature detection device in set temperature, namely temperature difference between set temperature and external environment temperature is measured, and is different in temperature adjustment state, temperature uniformity is measured, and is different from one device is required to be adjusted to another temperature, temperature uniformity is measured, and temperature accuracy is different from one device is adjusted to another temperature in temperature adjustment state, the method comprises the steps of setting a plurality of temperature sensors in equipment, recording temperatures at different positions to obtain temperature adjustment uniformity, continuously running time refers to the time that the low-temperature detection equipment can continuously run in a continuous working state, acquiring the continuous working time of the equipment by monitoring the running condition of the equipment for a long time, and calculating the fault rate by counting the times of faults of the equipment in a certain time and comparing the times with the total running time of the equipment.
The method comprises the steps that the tightness index accords with an index, the temperature debugging index accords with the index, the running stability index accords with the corresponding weight factor, the importance degree of each index on the applicability of low-temperature detection equipment is firstly required to be determined, staff, users or other related personnel in the cable industry are invited to participate in the survey through the design of a questionnaire, the weight of each index is determined through the opinion and feedback of the staff, the users or other related personnel, or the indexes are compared in pairs by constructing a judgment matrix, then the weight is calculated according to the comparison result, and the weight of each index can be determined through a data analysis method.
The specific analysis process for the cable simulation low-temperature detection of the low-temperature detection equipment comprises the steps of obtaining initial states of a simulation cable and the low-temperature detection equipment, wherein the initial states comprise initial temperatures of the simulation cable, initial lengths of the simulation cable, initial surface conditions of the simulation cable and initial temperatures of a low-temperature cavity of the low-temperature detection equipment, monitoring temperature changes of the simulation cable in the low-temperature detection equipment and performance index information changes of the low-temperature detection equipment, collecting temperature data of the surface of the simulation cable and performance index information of the low-temperature detection equipment in real time, analyzing the temperature data of the surface of the simulation cable in real time, identifying abnormal conditions of the temperature of the simulation cable, and generating a simulation detection report according to identification results.
In this embodiment, the initial temperature, initial length and initial surface condition of the analog cable and the initial temperature of the low temperature cavity of the low temperature detection device are recorded, the analog cable is placed in the low temperature detection device, the temperature change of the analog cable is started to be monitored, meanwhile, performance index information of the low temperature detection device is monitored, including tightness, temperature debugging accuracy and running stability, temperature data of the surface of the analog cable and performance index information of the low temperature detection device are collected in real time, the temperature abnormality condition, such as overhigh or overlow temperature, is identified by analyzing the real-time collected surface temperature data of the analog cable, meanwhile, the performance index information of the low temperature detection device is analyzed, whether the performance abnormality exists or not is checked, and a simulation detection report is generated according to the identification result, wherein the simulation detection report comprises the temperature abnormality condition of the analog cable, performance evaluation of the low temperature detection device and possible improvement suggestion. Through the real-time monitoring of the temperature change of the analog cable, the temperature abnormal condition can be timely found, possible faults can be early warned in advance, the performance index information of the low-temperature detection equipment is monitored, the performance of the equipment can be evaluated, and potential problems can be timely found and solved.
The specific analysis process for evaluating the low-temperature adaptability and the reliability of the target processing cable comprises the steps of obtaining initial information of the target processing cable, monitoring a low-temperature detection process of the target processing cable in real time, obtaining cable low-temperature detection performance parameters, comparing the initial information of the target processing cable with the cable low-temperature detection performance parameters to obtain cable performance change data, wherein the cable performance change data specifically comprises a tensile variable of the target processing cable, a fracture instantaneous tension of the target processing cable and an increase of surface cracks after the low-temperature detection of the target processing cable, and analyzing according to the cable performance change data to obtain a low-temperature performance change evaluation value of the target processing cable, wherein a specific calculation formula of the low-temperature performance change evaluation value of the target processing cable is as follows: In the middle of An evaluation value indicating a change in low-temperature performance of the target processed cable,Represents the tensile variable of the target processed cable,Indicating the instantaneous pull at break of the target processed cable,Indicating the increase of surface cracks of the target processed cable after low-temperature detection,A reference value representing a tensile variable,A reference value representing the instantaneous tension at break,A reference value indicating the amount of surface crack growth,The weight factor representing the tensile variable,A weight factor representing the instantaneous pull at break,The method comprises the steps of obtaining a low-temperature detection performance change threshold value of a cable, obtaining a weight factor representing the increase of surface cracks, comparing and analyzing the low-temperature performance change evaluation value of the target processing cable with the low-temperature detection performance change threshold value of the cable, marking the low-temperature adaptability and reliability of the target processing cable as qualified when the low-temperature performance change evaluation value of the target processing cable is smaller than or equal to the low-temperature detection performance change threshold value of the cable, and marking the low-temperature adaptability and reliability of the target processing cable as unqualified when the low-temperature performance change evaluation value of the target processing cable is larger than the low-temperature detection performance change threshold value of the cable.
In this embodiment, initial information of the target processing cable includes a model number, a material, a production date, a manufacturer, an initial length and an initial surface crack number of the cable, a low-temperature detection device is used to monitor the cable in real time, and a temperature and a tension parameter of the cable in a low-temperature environment are recorded, wherein the low-temperature detection performance parameter of the cable includes a cable length after low-temperature detection, a tension applied by a tension test after low-temperature detection and a surface crack number after low-temperature detection; the tensile variable refers to the elongation of the cable under the action of tensile force, the fracture instant tension refers to the tension applied to the cable when the cable breaks suddenly under the low-temperature environment, the surface crack increment refers to the increment of cracks on the surface of the cable after low-temperature detection, the cold resistance of the cable is reflected, the tensile variable is obtained by carrying out tensile test on the target processing cable under the low-temperature environment, the tensile variable such as the elastic modulus is calculated from test data, the reference value is the elastic modulus value of the same type of cable under the standard condition or the ideal value provided by a manufacturer, the fracture instant tension is obtained by carrying out tensile test on the target processing cable under the low-temperature environment, the value of the fracture instant tension is recorded, the reference value is the fracture instant tension value of the same type of cable under the standard condition or the minimum tension requirement specified in the product design specification, the surface crack increment is obtained by checking the target processing cable under the low-temperature environment, the quantity and the length of the surface crack are recorded, the surface crack is compared with the data before low-temperature detection, the increment is calculated, the reference value is the maximum increment specified in the product design crack, or the surface crack increment of the same type of cable under the standard condition, the weight factor is determined by a professional or a related standard making mechanism according to the actual situation and the requirement, and the weight factor is determined by weighing in consideration of the influence degree of each performance of the cable on the overall performance under the low-temperature environment and the importance degree of a user.
The low-temperature detection report of the target processing cable specifically comprises the temperature set by a low-temperature cavity of the low-temperature detection equipment, initial information of the target processing cable, cable low-temperature detection performance parameters of the target processing cable, cable performance change data of the target processing cable and evaluation marking results of low-temperature adaptability and reliability of the target processing cable.
In the embodiment, the performance of the target processing cable in the low-temperature environment can be comprehensively evaluated by recording the equipment parameters, the initial information, the performance parameters and the performance change data information, all the information is integrated in the report, the subsequent comparison and analysis are convenient, the reference is provided for the improvement and optimization of the cable performance, the problem of the cable can be timely found out through the comprehensive evaluation of the low-temperature performance of the cable, and further the quality and the reliability of the product are improved by adopting corresponding measures.
Referring to fig. 2, a low-temperature detection device based on cable processing is applied to the low-temperature detection method based on cable processing, and the low-temperature detection device based on cable processing comprises a processor, a low-temperature detection feasibility assessment module, a data acquisition module, a data analysis module and a report generation module, wherein the processor is used for processing computer program instructions stored in an execution memory in running, the low-temperature detection feasibility assessment module is used for carrying out reliability assessment on low-temperature detection equipment based on performance index information analysis of low-temperature detection equipment obtained by monitoring analog cable low-temperature detection, judging whether the low-temperature detection equipment is suitable for actual cable low-temperature detection or not, the data acquisition module is used for judging a standard suitable for actual cable low-temperature detection based on the low-temperature detection equipment, monitoring a low-temperature detection environment temperature and cable performance change data in the monitoring process, the data analysis module is used for analyzing the cable performance change data, assessing the low-temperature adaptability and reliability of the target processing cable, and the report generation module is used for generating a low-temperature detection report of the target processing cable according to the low-temperature adaptability and reliability assessment result of the target processing cable.
In summary, the present application has at least the following effects:
The method comprises the steps of determining the performance of low-temperature detection equipment, determining the standard of the low-temperature detection equipment, ensuring that the selected equipment can accurately and reliably monitor the performance change of the cable in a low-temperature environment, improving the detection accuracy and reliability, analyzing and evaluating the performance change data of the cable, finding out possible problems or potential risks of the cable in the low-temperature environment in time, avoiding faults or accidents caused by the performance reduction of the cable, saving maintenance and replacement cost, reducing downtime, evaluating the low-temperature adaptability and reliability of a target processing cable, providing reference opinion for the design and production process of the cable, optimizing the performance and durability of the cable, improving the adaptability of the cable in the low-temperature environment, and generating a low-temperature detection report, providing performance and safety evaluation of the cable in the low-temperature environment for users, helping the users to better know the use limit and attention of the cable, and improving the use safety of the cable.
It will be apparent to those skilled in the art that embodiments of the present invention may be provided as methods, apparatus. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention has been described with reference to block diagrams and flowchart illustrations of apparatus, methods according to embodiments of the invention. It will be understood that each block of the block diagrams and flowchart illustrations, and combinations of blocks in the block diagrams and flowchart illustrations, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
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.
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| CN111931334B (en) * | 2020-06-28 | 2024-11-29 | 中国电力科学研究院有限公司 | Method and system for evaluating operation reliability of cable equipment |
| CN113298110A (en) * | 2021-03-24 | 2021-08-24 | 国网河北省电力有限公司沧州供电分公司 | Submarine cable fault diagnosis method, device and equipment |
| KR102319713B1 (en) * | 2021-05-21 | 2021-11-03 | 주식회사 부림테크 | Power Distribution Cable' Temperature Monitering Method of Underground Power Cable |
| CN117571497A (en) * | 2023-11-08 | 2024-02-20 | 特变电工(德阳)电缆股份有限公司 | Cable performance test method for guiding cable laying in low-temperature environment |
| CN221765619U (en) * | 2024-01-19 | 2024-09-24 | 安徽远缆电气有限公司 | Cable durability testing device |
| CN118393363B (en) * | 2024-04-25 | 2025-02-21 | 广东华认检测科技有限公司 | Intelligent power battery discharge performance detection system and method |
| CN118607980A (en) * | 2024-05-21 | 2024-09-06 | 广西电网有限责任公司电力科学研究院 | A cable health status evaluation method and system |
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| CN101358863A (en) * | 2008-08-21 | 2009-02-04 | 华中电网有限公司 | A low-temperature icing test method for an on-line monitoring device for transmission lines |
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