Method for monitoring service life of large pull rod corrugated compensator for heat supply

Abstract

The invention provides a service life monitoring method for a large pull rod corrugated compensator for heat supply, and relates to the technical field of service life monitoring, and the method comprises the steps: carrying out the real-time monitoring of the large pull rod corrugated compensator for heat supply, obtaining the data of a sensor, and transmitting the data to a central monitoring platform; performing data summarization and data analysis, determining current deformation data of the large pull rod ripple compensator for heat supply, constructing a service life prediction model of the large pull rod ripple compensator for heat supply, determining current service life data according to the current deformation data, and predicting residual service life data in combination with historical data; a service life evaluation system is established, when it is judged that the heat supply large pull rod ripple compensator reaches the service life critical point, service life early warning data are generated, and a preset maintenance strategy is executed on the heat supply large pull rod ripple compensator reaching the service life critical point; the service life of the large pull rod corrugated compensator for heat supply is monitored.

Description

Technical Field

[0001] The invention relates to the technical field of life monitoring, and in particular to a life monitoring method for a large tie rod corrugated compensator for heating. Background Art

[0002] Large tie rod corrugated compensators are widely used in heating pipelines, mainly to absorb the thermal expansion or contraction of pipelines caused by temperature changes. However, compared with pipelines, compensators are more prone to leakage due to fatigue aging, corrosion damage, impact wear and other reasons. In particular, the life of large tie rod corrugated compensators in heating systems often directly affects the safety and operating efficiency of the entire heating system. At present, the design of large tie rod compensators mostly considers the maximum number of deformations, lacks specific life monitoring and evaluation methods, and is difficult to maintain and monitor.

[0003] Therefore, the present invention provides a life monitoring method for a large tie rod corrugated compensator for heating. Summary of the invention

[0004] The present invention provides a life monitoring method for a large tie rod corrugated compensator for heating. The method monitors the large tie rod corrugated compensator for heating in real time according to pre-deployed sensors, obtains sensor data and transmits it to a central monitoring platform; performs data aggregation and data analysis to determine the current deformation data of the large tie rod corrugated compensator for heating, constructs a life prediction model for the large tie rod corrugated compensator for heating, determines the current life data of the large tie rod corrugated compensator for heating according to the current deformation data, and predicts the remaining life data of the large tie rod corrugated compensator for heating in combination with historical data; establishes a life evaluation system for the large tie rod corrugated compensator for heating, and when it is determined that the large tie rod corrugated compensator for heating has reached a critical life point, the central monitoring platform generates life warning data, and executes a preset maintenance strategy for the large tie rod corrugated compensator for heating that has reached the critical life point; thus, life monitoring of the large tie rod corrugated compensator for heating is realized.

[0005] The present invention provides a life monitoring method for a large tie rod corrugated compensator for heating, comprising:

[0006] Step 1: Monitor the large tie rod corrugated compensator for heating in real time according to the pre-deployed sensors, obtain sensor data, and transmit the sensor data to the central monitoring platform;

[0007] Step 2: Summarize and analyze the sensor data received by the central monitoring platform, determine the current deformation data of the large tie rod corrugated compensator for heating, build a life prediction model for the large tie rod corrugated compensator for heating, determine the current life data of the large tie rod corrugated compensator for heating based on the current deformation data, and predict the remaining life data of the large tie rod corrugated compensator for heating based on historical data;

[0008] Step 3: Establish a life evaluation system for large tie rod corrugated compensators for heating. When it is determined that the large tie rod corrugated compensators for heating have reached the critical point of life, the central monitoring platform generates life warning data and executes the preset maintenance strategy for the large tie rod corrugated compensators for heating that have reached the critical point of life.

[0009] According to the life monitoring method of the large tie rod corrugated compensator for heating provided by the present invention, the large tie rod corrugated compensator for heating is monitored in real time according to the pre-deployed sensor to obtain sensor data, including:

[0010] Displacement sensors and temperature sensors are installed at the upper and lower ends of the large tie rod bellows compensator for heating;

[0011] When the large tie rod corrugated compensator for heating is monitored to be working, the displacement sensor and the temperature sensor are simultaneously activated to monitor the large tie rod corrugated compensator for heating in real time to obtain sensor data, wherein the sensor data includes: upper sensor data and lower sensor data.

[0012] According to the life monitoring method of the large tie rod corrugated compensator for heating provided by the present invention, the sensor data is transmitted to the central monitoring platform, including:

[0013] Construct a central monitoring platform and establish data transmission channels between the large tie rod corrugated compensator for heating and the central monitoring platform;

[0014] Perform data transmission test on the data transmission channel according to the transmission test data of the central monitoring platform. When the transmission test data is completely sent to the large tie rod corrugated compensator for heating and completely transmitted back from the large tie rod corrugated compensator for heating to the central monitoring platform, it is determined that the data transmission channel is successfully established;

[0015] The sensor data is transmitted to the central monitoring platform according to the successfully established data transmission channel.

[0016] According to the life monitoring method of the large tie rod corrugated compensator for heating provided by the present invention, a central monitoring platform is constructed, including:

[0017] Obtain the number of large tie rod corrugated compensators for heating and determine the number of monitoring devices on the central monitoring platform;

[0018] Determine the data storage type of the central monitoring platform according to the sensor type of the large tie rod corrugated compensator for heating;

[0019] The platform architecture is selected according to the working distribution of the large tie rod corrugated compensator for heating, and a central monitoring platform is constructed in combination with the monitoring quantity and data storage type, wherein the platform architecture includes: a distributed platform architecture and a centralized platform architecture.

[0020] According to the life monitoring method of the large tie rod corrugated compensator for heating provided by the present invention, the sensor data received by the central monitoring platform is aggregated and analyzed to determine the current deformation data of the large tie rod corrugated compensator for heating, including:

[0021] The sensor data received by the central monitoring platform is classified and summarized according to the large tie rod corrugated compensator for heating and sorted according to the transmission timing;

[0022] According to the classification data summary results, the data credibility analysis of the large tie rod corrugated compensator for heating is carried out. When the upper sensor data is consistent with the lower sensor data, the classification data summary results are judged to be credible.

[0023] When the upper sensor data is inconsistent with the lower sensor data, the classified data summary result data is determined to be unreliable, and the corresponding large tie rod corrugated compensator for heating is marked as a large tie rod corrugated compensator for heating with abnormal sensor data, and the sensor is redeployed and the sensor data is obtained again;

[0024] The data credibility of the large tie rod corrugated compensator for heating is determined according to the number of reliable data of the classified data summary result and the number of retransmissions of the sensor redeployed and the sensor data acquired for the second time;

[0025] Obtain displacement change data and temperature change data of the large tie rod bellows compensator for heating;

[0026] Set a small threshold value for temperature monitoring change. When the temperature change data of the large tie rod corrugated compensator for heating exceeds the small threshold value for temperature monitoring change, it is determined that the large tie rod corrugated compensator for heating is working once.

[0027] Determine the working times data of the large tie rod corrugated compensator for heating according to the times when the temperature change data of the large tie rod corrugated compensator for heating exceeds the small threshold value of the temperature monitoring change;

[0028] According to the classification data summary results and data sorting results, the data deformation analysis of the large tie rod corrugated compensator for heating is performed, the historical sensor data is obtained, and the displacement range and working number threshold of the large tie rod corrugated compensator for heating are determined;

[0029] When the displacement change data of the large tie rod corrugated compensator for heating is within the displacement range and the working number data does not exceed the working number threshold, it is determined that the deformation of the large tie rod corrugated compensator for heating is normal;

[0030] When the displacement change data of the large tie rod corrugated compensator for heating is not within the displacement range or the working number data exceeds the working number threshold, it is determined that the deformation of the large tie rod corrugated compensator for heating is abnormal deformation;

[0031] Obtain historical deformation data of the large tie rod corrugated compensator for heating, determine the displacement influence weight of the displacement change data on the deformation data and the number of working times data on the deformation data;

[0032] The current deformation data of the large tie rod corrugated compensator for heating is determined based on the displacement change data and the working number data of the large tie rod corrugated compensator for heating combined with the displacement influence weight and the number influence weight.

[0033] According to the life monitoring method of the large tie rod corrugated compensator for heating provided by the present invention, a life prediction model of the large tie rod corrugated compensator for heating is constructed, the current life data of the large tie rod corrugated compensator for heating is determined according to the current deformation data, and the remaining life data of the large tie rod corrugated compensator for heating is predicted in combination with the historical data, including:

[0034] According to historical data and preset life models, a life model of a large tie rod corrugated compensator for heating is constructed, wherein the historical data includes: historical sensor data and historical deformation data, and the preset life model includes: a physical model and a data-driven model;

[0035] Obtain the deformation data volume of the current deformation data, randomly select historical data with the same data volume as the current deformation data, record it as the current test data, and verify the life model of the large tie rod corrugated compensator for heating;

[0036] When the life monitoring accuracy and life monitoring stability of the life model of the large tie rod corrugated compensator for heating are not lower than the preset model verification value, the model verification is judged to be qualified;

[0037] Input the current deformation data into the life model of the large tie rod corrugated compensator for heating that has passed the model verification, and determine the current life data of the large tie rod corrugated compensator for heating;

[0038] According to the displacement range and the threshold of the number of working times, the normal deformation threshold of the large tie rod corrugated compensator for heating is determined;

[0039] Determine the deformation growth rate of the large tie rod bellows compensator for heating based on historical data;

[0040] According to the current life data of the large tie rod corrugated compensator for heating, combined with the normal deformation threshold and deformation growth rate of the large tie rod corrugated compensator for heating, the remaining life data of the large tie rod corrugated compensator for heating is predicted;

[0041] Among them, F represents the remaining life data of the large tie rod corrugated compensator for heating; xi1 represents the current displacement change data of the i1th current transmission sequence of the large tie rod corrugated compensator for heating; G(xi1) maxIt represents the maximum value of the current displacement change data output; X1 represents the displacement threshold; yi1 represents the current working times data of the i1th current transmission sequence; Y1 represents the working times threshold; a1 represents the displacement influence weight; a2 represents the times influence weight; b1 represents the current data credibility of the large tie rod corrugated compensator for heating; Z1 represents the normal deformation threshold of the large tie rod corrugated compensator for heating; F1 represents the current life data of the large tie rod corrugated compensator for heating; d1 represents the deformation growth rate of the large tie rod corrugated compensator for heating; n1 represents the number of current transmission sequences of the large tie rod corrugated compensator for heating.

[0042] According to the life monitoring method of the large tie rod corrugated compensator for heating provided by the present invention, a life evaluation system of the large tie rod corrugated compensator for heating is established. When it is determined that the large tie rod corrugated compensator for heating has reached the critical point of life, the central monitoring platform generates life warning data, and executes a preset maintenance strategy for the large tie rod corrugated compensator for heating that has reached the critical point of life, including:

[0043] Set the life evaluation index of the large tie rod corrugated compensator for heating, establish the life evaluation system of the large tie rod corrugated compensator for heating, and determine the current life evaluation value of the large tie rod corrugated compensator for heating according to the remaining life data of the large tie rod corrugated compensator for heating, wherein the life evaluation index includes: displacement change evaluation index, working number evaluation index and working time evaluation index;

[0044] Set the critical life point of the large tie rod corrugated compensator for heating, obtain the critical evaluation value corresponding to the critical life point, when the current life evaluation value of the large tie rod corrugated compensator for heating is not lower than the critical evaluation value, it is determined that the large tie rod corrugated compensator for heating has reached the critical life point, the central monitoring platform generates life warning data, and executes the preset maintenance strategy for the large tie rod corrugated compensator for heating that has reached the critical life point.

[0045] The method for monitoring the life of a large tie rod corrugated compensator for heating provided by the present invention also includes:

[0046] A user visualization interface is set up on the central monitoring platform to visualize the current life data, remaining life data, life critical point and preset maintenance strategy of the large tie rod corrugated compensator for heating;

[0047] Set user access rights to allow users to manually monitor and manually control the large tie rod corrugated compensator for heating.

[0048] Compared with the prior art, the present invention has the following beneficial effects:

[0049] The large tie rod corrugated compensator for heating is monitored in real time according to the pre-deployed sensors, and the sensor data is obtained and transmitted to the central monitoring platform; data aggregation and data analysis are performed to determine the current deformation data of the large tie rod corrugated compensator for heating, and a life prediction model for the large tie rod corrugated compensator for heating is constructed. The current life data of the large tie rod corrugated compensator for heating is determined according to the current deformation data, and the remaining life data of the large tie rod corrugated compensator for heating is predicted in combination with historical data; a life evaluation system for the large tie rod corrugated compensator for heating is established. When it is determined that the large tie rod corrugated compensator for heating has reached the critical point of life, the central monitoring platform generates life warning data, and executes the preset maintenance strategy for the large tie rod corrugated compensator for heating that has reached the critical point of life; the life monitoring of the large tie rod corrugated compensator for heating is realized.

[0050] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0051] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0053] Figure 1 It is a flow chart of a method for monitoring the life of a large tie rod corrugated compensator for heating provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0054] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0055] Embodiment 1:

[0056] The embodiment of the present invention provides a method for monitoring the life of a large tie rod corrugated compensator for heating, such as Figure 1 As shown, including:

[0057] Step 1: Monitor the large tie rod corrugated compensator for heating in real time according to the pre-deployed sensors, obtain sensor data, and transmit the sensor data to the central monitoring platform;

[0058] Step 2: Summarize and analyze the sensor data received by the central monitoring platform, determine the current deformation data of the large tie rod corrugated compensator for heating, build a life prediction model for the large tie rod corrugated compensator for heating, determine the current life data of the large tie rod corrugated compensator for heating based on the current deformation data, and predict the remaining life data of the large tie rod corrugated compensator for heating based on historical data;

[0059] Step 3: Establish a life evaluation system for large tie rod corrugated compensators for heating. When it is determined that the large tie rod corrugated compensators for heating have reached the critical point of life, the central monitoring platform generates life warning data and executes the preset maintenance strategy for the large tie rod corrugated compensators for heating that have reached the critical point of life.

[0060] In this embodiment, the pre-deployed sensors include: a displacement sensor and a temperature sensor.

[0061] In this embodiment, the large tie rod corrugated compensator is widely used in heating pipelines, mainly for absorbing the thermal expansion or contraction of the pipeline caused by temperature changes. Therefore, the pre-deployed sensors are temperature sensors for monitoring temperature and displacement sensors for monitoring deformation.

[0062] In this embodiment, the sensor data refers to the data obtained by the pre-deployed sensors for real-time monitoring of the large tie rod corrugated compensator for heating, and the data is sorted according to the acquisition time, including displacement sensor data and temperature sensor data.

[0063] In this embodiment, the central monitoring platform refers to a platform for monitoring the life of the large tie rod corrugated compensator for heating. By summarizing and analyzing the sensor data, the life of the large tie rod corrugated compensator for heating is determined and the corresponding maintenance strategy is implemented.

[0064] In this embodiment, the sensor data received by the central monitoring platform is aggregated. For example, the temperature sensor data is aggregated and sorted according to the transmission timing, and the temperature change of the temperature sensor data over time is determined to facilitate subsequent data analysis.

[0065] In this embodiment, the data analysis performed on the sensor data received by the central monitoring platform includes: data credibility analysis and data deformation analysis.

[0066] In this embodiment, data credibility analysis is used to determine the data accuracy of sensor data received by the central monitoring platform.

[0067] In this embodiment, data deformation degree analysis is used to determine the specific deformation condition of the large tie rod corrugated compensator for heating. For example, if the deformation condition b1 of the large tie rod corrugated compensator a1 for heating is less than the deformation critical point b2, then the deformation of the large tie rod corrugated compensator for heating is normal, and the deformation condition is b1.

[0068] In this embodiment, the deformation critical point refers to the maximum deformation condition of the large tie-rod bellows compensator for heat supply under normal deformation. When the deformation condition of the large tie-rod bellows compensator for heat supply is not lower than the deformation critical point, it is determined that the deformation of the large tie-rod bellows compensator for heat supply is abnormal and maintenance or replacement is required.

[0069] In this embodiment, the current deformation data of the large tie-rod bellows compensator for heat supply refers to the deformation condition of the large tie-rod bellows compensator for heat supply in the current period. For example, if the deformation condition of the large tie-rod bellows compensator a1 in the current period is b1, then the current deformation data of the large tie-rod bellows compensator a1 is b1.

[0070] In this embodiment, the life prediction model of the large tie-rod bellows compensator for heat supply is used to determine the current life data of the large tie-rod bellows compensator for heat supply and predict the remaining life of the large tie-rod bellows compensator for heat supply. For example, according to the life prediction model of the large tie-rod bellows compensator for heat supply, the current life data c1 and the remaining life c2 of the large tie-rod bellows compensator a1 are determined.

[0071] In this embodiment, the life evaluation system of the large tie-rod bellows compensator for heat supply is used to quantitatively analyze the life of the large tie-rod bellows compensator for heat supply, which is convenient for efficiently determining the life condition of the large tie-rod bellows compensator for heat supply.

[0072] In this embodiment, the current life evaluation value of the large tie-rod bellows compensator for heat supply is determined through the life evaluation system of the large tie-rod bellows compensator for heat supply. If the current life evaluation value is not lower than the critical evaluation value corresponding to the life critical point, it is determined that the large tie-rod bellows compensator for heat supply reaches the life critical point.

[0073] In this embodiment, the life critical point refers to the life point for dividing whether the large tie-rod bellows compensator for heat supply needs maintenance or replacement. For example, for the life critical point c3, if the remaining life c2 of the large tie-rod bellows compensator a1 < c3, then the large tie-rod bellows compensator a1 does not need maintenance or replacement.

[0074] In this embodiment, the life warning data refers to the data used by the central monitoring platform to remind the large tie-rod bellows compensator for heat supply to execute the preset maintenance strategy. For example, when the remaining life c4 of the large tie-rod bellows compensator a2 > c3, the central monitoring platform generates the life warning data d2 for maintaining or replacing the large tie-rod bellows compensator a2.

[0075] In this embodiment, the preset maintenance strategy is used to ensure the stable operation of the large tie-rod bellows compensator for heat supply. For example, the large tie-rod bellows compensator is maintained periodically or replaced.

[0076] The working principle and beneficial effects of the above technical solution are: real-time monitoring of the large tie rod corrugated compensator for heating is carried out according to the pre-deployed sensors, and sensor data is obtained and transmitted to the central monitoring platform; data aggregation and data analysis are carried out to determine the current deformation data of the large tie rod corrugated compensator for heating, and a life prediction model for the large tie rod corrugated compensator for heating is constructed, and the current life data of the large tie rod corrugated compensator for heating is determined according to the current deformation data and the remaining life data of the large tie rod corrugated compensator for heating is predicted in combination with historical data; a life evaluation system for the large tie rod corrugated compensator for heating is established, and when it is determined that the large tie rod corrugated compensator for heating has reached the critical point of life, the central monitoring platform generates life warning data, and executes the preset maintenance strategy for the large tie rod corrugated compensator for heating that has reached the critical point of life; and the life monitoring of the large tie rod corrugated compensator for heating is realized.

[0077] Embodiment 2:

[0078] The embodiment of the present invention provides a life monitoring method for a large tie rod corrugated compensator for heating, which performs real-time monitoring of the large tie rod corrugated compensator for heating according to a pre-deployed sensor to obtain sensor data, including:

[0079] Displacement sensors and temperature sensors are installed at the upper and lower ends of the large tie rod bellows compensator for heating;

[0080] When the large tie rod corrugated compensator for heating is monitored to be working, the displacement sensor and the temperature sensor are simultaneously activated to monitor the large tie rod corrugated compensator for heating in real time to obtain sensor data, wherein the sensor data includes: upper sensor data and lower sensor data.

[0081] In this embodiment, displacement sensors and temperature sensors are installed at the upper and lower ends of the large tie rod corrugated compensator for heating. For example, displacement sensor b1 and temperature sensor c1 are deployed at the upper end of the large tie rod corrugated compensator a1 for heating, and displacement sensor b2 and temperature sensor c2 are deployed at the lower end of the large tie rod corrugated compensator a2 for heating.

[0082] In this embodiment, when the large tie rod corrugated compensator for heating is monitored to be working, the displacement sensor and the temperature sensor are simultaneously activated to ensure both real-time monitoring of the large tie rod corrugated compensator for heating and effective monitoring of the large tie rod corrugated compensator for heating.

[0083] In this embodiment, synchronously activating the displacement sensor and the temperature sensor means synchronizing the monitoring time of the displacement sensor with the monitoring time of the temperature sensor, so as to ensure that both the displacement sensor and the temperature sensor are performing real-time monitoring on the large tie rod corrugated compensator for heating.

[0084] In this embodiment, when the temperature sensor detects a temperature change in the heating pipeline, it is determined that the large tie rod corrugated compensator for heating is in a working state.

[0085] In this embodiment, the upper sensor data includes: upper temperature sensor data and upper displacement sensor data; the lower sensor data includes: lower temperature sensor data and lower displacement sensor data; the data do not interfere with each other.

[0086] The working principle and beneficial effect of the above technical solution are: through pre-deployed sensors, the large tie rod corrugated compensator for heating is monitored in real time, and sensor data is obtained to provide a data basis for subsequent life monitoring of the large tie rod corrugated compensator for heating.

[0087] Embodiment 3:

[0088] The embodiment of the present invention provides a life monitoring method for a large tie rod corrugated compensator for heating, which transmits sensor data to a central monitoring platform, including:

[0089] Construct a central monitoring platform and establish data transmission channels between the large tie rod corrugated compensator for heating and the central monitoring platform;

[0090] Perform data transmission test on the data transmission channel according to the transmission test data of the central monitoring platform. When the transmission test data is completely sent to the large tie rod corrugated compensator for heating and completely transmitted back from the large tie rod corrugated compensator for heating to the central monitoring platform, it is determined that the data transmission channel is successfully established;

[0091] The sensor data is transmitted to the central monitoring platform according to the successfully established data transmission channel.

[0092] In this embodiment, a central monitoring platform is constructed, and data transmission channels are established between the large tie-rod corrugated compensator for heating and the central monitoring platform respectively, which are used to independently transmit sensor data to ensure that the sensor data do not interfere with each other. For example, data transmission channels b1, b2, b3, and b4 are established between the large tie-rod corrugated compensator a1 for heating and the central monitoring platform P, wherein the data transmission channel b1 is used to transmit the upper end displacement sensor data of the large tie-rod corrugated compensator a1 for heating; the data transmission channel b2 is used to transmit the lower end displacement sensor data of the large tie-rod corrugated compensator a1 for heating; the data transmission channel b3 is used to transmit the upper end temperature sensor data of the large tie-rod corrugated compensator a1 for heating; and the data transmission channel b4 is used to transmit the lower end temperature sensor data of the large tie-rod corrugated compensator a1 for heating.

[0093] In this embodiment, the transmission test data of the central monitoring platform refers to data used to test whether the data transmission channel between the large tie rod corrugated compensator for heating and the central monitoring platform is successfully established.

[0094] In this embodiment, the transmission test data is completely sent down to the large tie rod corrugated compensator for heating and completely transmitted back from the large tie rod corrugated compensator for heating to the central monitoring platform, that is, the transmission test data can be transmitted bidirectionally through the data transmission channel.

[0095] In this embodiment, the data from the large tie rod corrugated compensator for heating is completely transmitted back to the central monitoring platform to ensure that the sensor data is transmitted to the central monitoring platform; the transmission test data is completely sent down to the large tie rod corrugated compensator for heating to ensure that the central monitoring platform subsequently transmits the data for maintenance and management.

[0096] The working principle and beneficial effect of the above technical solution are: by transmitting the sensor data to the central monitoring platform, it is convenient to summarize and analyze the sensor data later, thereby realizing the life monitoring of the large tie rod corrugated compensator for heating.

[0097] Embodiment 4:

[0098] The embodiment of the present invention provides a life monitoring method for a large tie rod corrugated compensator for heating, and constructs a central monitoring platform, including:

[0099] Obtain the number of large tie rod corrugated compensators for heating and determine the number of monitoring devices on the central monitoring platform;

[0100] Determine the data storage type of the central monitoring platform according to the sensor type of the large tie rod corrugated compensator for heating;

[0101] The platform architecture is selected according to the working distribution of the large tie rod corrugated compensator for heating, and a central monitoring platform is constructed in combination with the monitoring quantity and data storage type, wherein the platform architecture includes: a distributed platform architecture and a centralized platform architecture.

[0102] In this embodiment, the number of large tie rod corrugated compensators for heating is obtained to determine the number of monitoring devices of the central monitoring platform. The more monitoring devices there are, the larger the architecture of the central monitoring platform is, which is used for subsequent summary analysis of sensor data.

[0103] In this embodiment, the data storage type of the central monitoring platform includes, for example, a displacement data storage type, a temperature data storage type, a time data storage type, and a maintenance data storage type.

[0104] In this embodiment, the platform architecture is selected according to the working distribution of the large tie rod corrugated compensators for heating. For example, if the large tie rod corrugated compensators for heating are concentratedly distributed, a centralized platform architecture is adopted.

[0105] In this embodiment, the working distribution of the large tie-rod corrugated compensator for heating is determined based on the working coordinate data of the large tie-rod corrugated compensator for heating and the sensor data. For example, the working state of the large tie-rod corrugated compensator for heating is determined based on the sensor data, and the working distribution of the large tie-rod corrugated compensator for heating is determined in combination with the working coordinate data of the large tie-rod corrugated compensator for heating.

[0106] The working principle and beneficial effects of the above technical solution are: by building a central monitoring platform, it is conducive to the subsequent summary analysis of sensor data, determining the life of the large tie rod corrugated compensator for heating and implementing corresponding maintenance strategies.

[0107] Embodiment 5:

[0108] The embodiment of the present invention provides a life monitoring method for a large tie rod corrugated compensator for heating, which aggregates and analyzes sensor data received by a central monitoring platform to determine current deformation data of the large tie rod corrugated compensator for heating, including:

[0109] The sensor data received by the central monitoring platform is classified and summarized according to the large tie rod corrugated compensator for heating and sorted according to the transmission timing;

[0110] According to the classification data summary results, the data credibility analysis of the large tie rod corrugated compensator for heating is carried out. When the upper sensor data is consistent with the lower sensor data, the classification data summary results are judged to be credible.

[0111] When the upper sensor data is inconsistent with the lower sensor data, the classified data summary result data is determined to be unreliable, and the corresponding large tie rod corrugated compensator for heating is marked as a large tie rod corrugated compensator for heating with abnormal sensor data, and the sensor is redeployed and the sensor data is obtained again;

[0112] The data credibility of the large tie rod corrugated compensator for heating is determined according to the number of reliable data of the classified data summary result and the number of retransmissions of the sensor redeployed and the sensor data acquired for the second time;

[0113] Obtain displacement change data and temperature change data of the large tie rod bellows compensator for heating;

[0114] Set a small threshold value for temperature monitoring change. When the temperature change data of the large tie rod corrugated compensator for heating exceeds the small threshold value for temperature monitoring change, it is determined that the large tie rod corrugated compensator for heating is working once.

[0115] Determine the working times data of the large tie rod corrugated compensator for heating according to the times when the temperature change data of the large tie rod corrugated compensator for heating exceeds the small threshold value of the temperature monitoring change;

[0116] According to the classification data summary results and data sorting results, the data deformation analysis of the large tie rod corrugated compensator for heating is performed, the historical sensor data is obtained, and the displacement range and working number threshold of the large tie rod corrugated compensator for heating are determined;

[0117] When the displacement change data of the large tie rod corrugated compensator for heating is within the displacement range and the working number data does not exceed the working number threshold, it is determined that the deformation of the large tie rod corrugated compensator for heating is normal;

[0118] When the displacement change data of the large tie rod corrugated compensator for heating is not within the displacement range or the working number data exceeds the working number threshold, it is determined that the deformation of the large tie rod corrugated compensator for heating is abnormal deformation;

[0119] Obtain historical deformation data of the large tie rod corrugated compensator for heating, determine the displacement influence weight of the displacement change data on the deformation data and the number of working times data on the deformation data;

[0120] The current deformation data of the large tie rod corrugated compensator for heating is determined based on the displacement change data and the working number data of the large tie rod corrugated compensator for heating combined with the displacement influence weight and the number influence weight.

[0121] In this embodiment, the sensor data received by the central monitoring platform is classified and summarized according to the large tie rod corrugated compensator for heating and sorted according to the transmission timing. For example, the sensor data corresponding to the large tie rod corrugated compensator a1 for heating is classified into one category for data summary.

[0122] In this embodiment, data credibility analysis is performed. For example, if the upper sensor data of the large tie rod corrugated compensator a1 for heating is consistent with the lower sensor data, it is determined that the classification data summary result data of the large tie rod corrugated compensator a1 for heating is credible.

[0123] In this embodiment, the sensor data of the large tie-rod corrugated compensator for heating is abnormal. For example, the upper sensor data of the large tie-rod corrugated compensator a2 for heating is inconsistent with the lower sensor data. Then the large tie-rod corrugated compensator a2 for heating is the large tie-rod corrugated compensator for heating with abnormal sensor data.

[0124] In this embodiment, the data credibility of the large tie-rod corrugated compensator for heating refers to the data accuracy of the large tie-rod corrugated compensator for heating. For example, the classified data summary result of the large tie-rod corrugated compensator a1 for heating is reliable d1 times, and the sensor is redeployed and the sensor data is re-acquired d2 times, then the data credibility of the large tie-rod corrugated compensator for heating is d1 / (d1+d2).

[0125] In this embodiment, the displacement change data and the temperature change data of the large tie rod corrugated compensator for heating are obtained, for example, the displacement change data b1 and the temperature change data c1 of the large tie rod corrugated compensator a1 for heating.

[0126] In this embodiment, the small threshold value of temperature monitoring change refers to the minimum temperature threshold value at which the temperature sensor of the large tie-rod corrugated compensator for heating can monitor temperature changes. For example, when the temperature change is not lower than c2, the temperature sensor can effectively monitor the temperature change. At the same time, the large tie-rod corrugated compensator for heating causes a displacement change due to temperature changes and is used to absorb the thermal expansion or contraction of the pipeline caused by temperature changes. Therefore, when the temperature change data of the large tie-rod corrugated compensator for heating exceeds the small threshold value of temperature monitoring change, it is determined that the large tie-rod corrugated compensator for heating has performed a work.

[0127] In this embodiment, data deformation analysis is performed on the large tie rod corrugated compensator for heating according to the classified data summary results and the data sorting results. For example, data deformation analysis is performed on the large tie rod corrugated compensator a1 for heating according to the classified data summary results and the data sorting results, and it is determined that the large tie rod corrugated compensator a1 for heating is in a normal deformation condition.

[0128] In this embodiment, the normal deformation condition refers to a deformation condition in which the displacement change data of the large tie rod corrugated compensator for heating is within the displacement range and the working number data does not exceed the working number threshold.

[0129] In this embodiment, abnormal deformation refers to a deformation in which the displacement change data of the large tie rod corrugated compensator for heating exceeds the displacement range or the working number data exceeds the working number threshold, that is, the large tie rod corrugated compensator for heating needs to be maintained or replaced.

[0130] In this embodiment, the displacement range refers to the range of normal displacement changes of the large tie rod corrugated compensator for heating, such as (e1, e2); the working times threshold refers to the maximum number of normal working times of the large tie rod corrugated compensator for heating, such as the working times threshold f1. When the working times of the large tie rod corrugated compensator for heating is not less than the working times threshold f1, the large tie rod corrugated compensator for heating is abnormally deformed.

[0131] In this embodiment, the current deformation data of the large tie rod corrugated compensator for heating refers to the deformation condition of the large tie rod corrugated compensator for heating at the current moment.

[0132] The working principle and beneficial effect of the above technical solution are: by aggregating and analyzing the sensor data received by the central monitoring platform, the current deformation data of the large tie rod corrugated compensator for heating is determined, and the current deformation of the large tie rod corrugated compensator for heating is specifically determined, which is conducive to the subsequent determination of the life of the large tie rod corrugated compensator for heating.

[0133] Embodiment 6:

[0134] The embodiment of the present invention provides a life monitoring method for a large tie rod corrugated compensator for heating, constructs a life prediction model for a large tie rod corrugated compensator for heating, determines the current life data of the large tie rod corrugated compensator for heating according to the current deformation data, and predicts the remaining life data of the large tie rod corrugated compensator for heating in combination with historical data, including:

[0135] According to historical data and preset life models, a life model of a large tie rod corrugated compensator for heating is constructed, wherein the historical data includes: historical sensor data and historical deformation data, and the preset life model includes: a physical model and a data-driven model;

[0136] Obtain the deformation data volume of the current deformation data, randomly select historical data with the same data volume as the current deformation data, record it as the current test data, and verify the life model of the large tie rod corrugated compensator for heating;

[0137] When the life monitoring accuracy and life monitoring stability of the life model of the large tie rod corrugated compensator for heating are not lower than the preset model verification value, the model verification is judged to be qualified;

[0138] Input the current deformation data into the life model of the large tie rod corrugated compensator for heating that has passed the model verification, and determine the current life data of the large tie rod corrugated compensator for heating;

[0139] According to the displacement range and the threshold of the number of working times, the normal deformation threshold of the large tie rod corrugated compensator for heating is determined;

[0140] Determine the deformation growth rate of the large tie rod bellows compensator for heating based on historical data;

[0141] According to the current life data of the large tie rod corrugated compensator for heating, combined with the normal deformation threshold and deformation growth rate of the large tie rod corrugated compensator for heating, the remaining life data of the large tie rod corrugated compensator for heating is predicted;

[0142] Among them, F represents the remaining life data of the large tie rod corrugated compensator for heating; xi1 represents the current displacement change data of the i1th current transmission sequence of the large tie rod corrugated compensator for heating; G(xi1) maxIt represents the maximum value of the current displacement change data output; X1 represents the displacement threshold; yi1 represents the current working times data of the i1th current transmission sequence; Y1 represents the working times threshold; a1 represents the displacement influence weight; a2 represents the times influence weight; b1 represents the current data credibility of the large tie rod corrugated compensator for heating; Z1 represents the normal deformation threshold of the large tie rod corrugated compensator for heating; F1 represents the current life data of the large tie rod corrugated compensator for heating; d1 represents the deformation growth rate of the large tie rod corrugated compensator for heating; n1 represents the number of current transmission sequences of the large tie rod corrugated compensator for heating.

[0143] In this embodiment, the preset life model includes: a physical model and a data-driven model, such as a regression model and a deep learning model.

[0144] In this embodiment, the life model of the large tie rod corrugated compensator for heating is used to determine the current life of the large tie rod corrugated compensator for heating and predict the remaining life.

[0145] In this embodiment, the current test data refers to data for model verification of the life model of the large tie rod corrugated compensator for heating.

[0146] In this embodiment, the deformation data amount of the current deformation data is obtained, and historical data with the same data amount as the current deformation data is randomly selected and recorded as the current test data. For example, the deformation data amount of the current deformation data is a1, and historical data with the data amount a1 is randomly selected and recorded as the current test data.

[0147] In this embodiment, the deformation data amount of the current deformation data is obtained, and historical data with a data amount consistent with the current deformation data is randomly selected and recorded as current test data. The life model of the large tie rod corrugated compensator for heating is verified to ensure that the life model of the large tie rod corrugated compensator for heating can efficiently process the current deformation data.

[0148] In this embodiment, the life monitoring accuracy of the life model of the large tie rod corrugated compensator for heating refers to the matching degree between the output value of the life model of the large tie rod corrugated compensator for heating and the actual value; the life monitoring stability refers to the output fluctuation degree of the same large tie rod corrugated compensator for heating. The smaller the output fluctuation degree, the higher the life monitoring stability.

[0149] In this embodiment, the preset model verification value refers to the parameter for judging the qualified model verification of the life model of the large tie rod corrugated compensator for heating.

[0150] In this embodiment, the normal deformation threshold of the large tie rod corrugated compensator for heating is determined based on the displacement range and the working number threshold. For example, the normal deformation threshold b1 of the large tie rod corrugated compensator for heating is determined. When the deformation data of the large tie rod corrugated compensator for heating does not exceed the normal deformation threshold, it is determined that the deformation of the large tie rod corrugated compensator for heating is a normal deformation.

[0151] In this embodiment, the current life data of the large tie rod corrugated compensator for heating refers to the life data of the large tie rod corrugated compensator for heating at the current moment, for example, the current life data d1 of the large tie rod corrugated compensator c1 for heating, that is, the large tie rod corrugated compensator c1 for heating can still use the moment d1.

[0152] In this embodiment, the deformation growth rate of the large tie rod corrugated compensator for heating is determined based on historical data. For example, the deformation data b2 of the large tie rod corrugated compensator c1 for heating at time d1 and the deformation data b3 at the next time d2, then the deformation growth rate of the large tie rod corrugated compensator for heating is b3 / b2.

[0153] In this embodiment, the remaining life data of the large tie rod corrugated compensator for heating refers to the life data predicted according to the life model of the large tie rod corrugated compensator for heating, for example, the remaining life data d2 of the large tie rod corrugated compensator c1 for heating, that is, the large tie rod corrugated compensator c1 for heating needs to be maintained or replaced after time d2 of use.

[0154] The working principle and beneficial effects of the above technical solution are: by constructing a life prediction model for the large tie rod corrugated compensator for heating, the current life data of the large tie rod corrugated compensator for heating is determined according to the current deformation data and the remaining life data of the large tie rod corrugated compensator for heating is predicted in combination with historical data, thereby realizing the life monitoring of the large tie rod corrugated compensator for heating.

[0155] Embodiment 7:

[0156] The embodiment of the present invention provides a life monitoring method for a large tie rod corrugated compensator for heating, establishes a life evaluation system for a large tie rod corrugated compensator for heating, and when it is determined that the large tie rod corrugated compensator for heating has reached a critical point in life, the central monitoring platform generates life warning data, and executes a preset maintenance strategy for the large tie rod corrugated compensator for heating that has reached the critical point in life, including:

[0157] Set the life evaluation index of the large tie rod corrugated compensator for heating, establish the life evaluation system of the large tie rod corrugated compensator for heating, and determine the current life evaluation value of the large tie rod corrugated compensator for heating according to the remaining life data of the large tie rod corrugated compensator for heating, wherein the life evaluation index includes: displacement change evaluation index, working number evaluation index and working time evaluation index;

[0158] Set the critical life point of the large tie rod corrugated compensator for heating, obtain the critical evaluation value corresponding to the critical life point, when the current life evaluation value of the large tie rod corrugated compensator for heating is not lower than the critical evaluation value, it is determined that the large tie rod corrugated compensator for heating has reached the critical life point, the central monitoring platform generates life warning data, and executes the preset maintenance strategy for the large tie rod corrugated compensator for heating that has reached the critical life point.

[0159] In this embodiment, the life evaluation index of the large tie rod corrugated compensator for heating refers to an index for evaluating the life of the large tie rod corrugated compensator for heating, for example, an evaluation index of the number of working times, that is, the more times the large tie rod corrugated compensator for heating works, the lower the corresponding life evaluation.

[0160] In this embodiment, the life evaluation system of the large tie rod corrugated compensator for heating is used to quantitatively evaluate the life of the large tie rod corrugated compensator for heating.

[0161] In this embodiment, the working environments of different large tie rod corrugated compensators for heating are different. Therefore, the life losses of different large tie rod corrugated compensators for heating are different. Therefore, a life evaluation system for large tie rod corrugated compensators for heating is established to perform life evaluation, so as to facilitate further accurate determination of the life of large tie rod corrugated compensators for heating, for example, the remaining life data b1 of large tie rod corrugated compensator a1 for heating, and the remaining life data b2 of large tie rod corrugated compensator a2 for heating, b1>b2, but the life losses of large tie rod corrugated compensator a1 for heating and large tie rod corrugated compensator a2 for heating are different. For example, large tie rod corrugated compensator a1 for heating must be maintained when the remaining life data is b3, and large tie rod corrugated compensator a2 for heating must be maintained when the remaining life data is b4.

[0162] In this embodiment, the current life evaluation value of the large tie rod corrugated compensator for heating refers to a life evaluation value further determined according to the life evaluation system of the large tie rod corrugated compensator for heating.

[0163] In this embodiment, the critical life point of the large tie rod corrugated compensator for heating refers to the life point at which the large tie rod corrugated compensator for heating needs to be maintained or replaced, for example, the critical life point b3 of the large tie rod corrugated compensator a1 for heating.

[0164] In this embodiment, the critical life spans of different large tie rod corrugated compensators for heating are different.

[0165] In this embodiment, the critical evaluation value corresponding to the critical life point refers to the evaluation value obtained by inputting the critical life point into the life evaluation system of the large tie rod corrugated compensator for heating, which is used to determine whether the large tie rod corrugated compensator for heating has reached the critical life point.

[0166] In this embodiment, the life warning data refers to the data generated by the central monitoring platform for maintenance and management of the large tie rod corrugated compensator for heating.

[0167] The working principle and beneficial effects of the above technical solution are: by establishing a life evaluation system for large tie rod corrugated compensators for heating, when it is determined that the large tie rod corrugated compensators for heating have reached the critical point of life, the central monitoring platform generates life warning data, and executes the preset maintenance strategy for the large tie rod corrugated compensators for heating that have reached the critical point of life, thereby effectively ensuring the stable operation of the large tie rod corrugated compensators for heating.

[0168] Embodiment 8:

[0169] The embodiment of the present invention provides a method for monitoring the life of a large tie rod corrugated compensator for heating, further comprising:

[0170] A user visualization interface is set up on the central monitoring platform to visualize the current life data, remaining life data, life critical point and preset maintenance strategy of the large tie rod corrugated compensator for heating;

[0171] Set user access rights to allow users to manually monitor and manually control the large tie rod corrugated compensator for heating.

[0172] In this embodiment, the user visualization interface refers to the interface for users to access and view the large tie rod corrugated compensator for heating, for example, visually displaying the large tie rod corrugated compensator for heating a1, current life data b1, remaining life data b2, life critical point b3, and preset maintenance strategy c1.

[0173] In this embodiment, user access rights refer to the user's rights to manually monitor and manually control the large tie rod corrugated compensator for heating. For example, the user access rights are divided into d1 and d2. Users with access rights d1 are only allowed to view the visualization data of the large tie rod corrugated compensator for heating, for example, viewing the visualization display of the current life data of the large tie rod corrugated compensator a1 for heating; users with access rights d2 can manually monitor and manually control the large tie rod corrugated compensator a1 for heating, and execute the preset maintenance strategy c1.

[0174] The working principle and beneficial effects of the above technical solution are: by setting a user visualization interface, it is beneficial for users to observe the life of the large tie rod corrugated compensator for heating in real time, and it is convenient for manual maintenance of the large tie rod corrugated compensator for heating; setting user access rights is used to ensure the access security of the large tie rod corrugated compensator for heating.

[0175] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for monitoring the life of a large tie rod corrugated compensator for heating, characterized in that: include: Step 1: Monitor the large tie rod corrugated compensator for heating in real time according to the pre-deployed sensors, obtain sensor data, and transmit the sensor data to the central monitoring platform; Step 2: Summarize and analyze the sensor data received by the central monitoring platform, determine the current deformation data of the large tie rod corrugated compensator for heating, build a life prediction model for the large tie rod corrugated compensator for heating, determine the current life data of the large tie rod corrugated compensator for heating according to the current deformation data, and predict the remaining life data of the large tie rod corrugated compensator for heating in combination with historical data; Step 3: Establish a life evaluation system for large tie rod corrugated compensators for heating. When it is determined that the large tie rod corrugated compensators for heating have reached the critical point of life, the central monitoring platform generates life warning data and executes the preset maintenance strategy for the large tie rod corrugated compensators for heating that have reached the critical point of life.

2. The method for monitoring the life of a large tie rod corrugated compensator for heating according to claim 1 is characterized in that: The pre-deployed sensors are used to monitor the large tie rod corrugated compensator for heating in real time and obtain sensor data, including: Displacement sensors and temperature sensors are installed at the upper and lower ends of the large tie rod bellows compensator for heating; When the large tie rod corrugated compensator for heating is monitored to be working, the displacement sensor and the temperature sensor are simultaneously activated to monitor the large tie rod corrugated compensator for heating in real time to obtain sensor data, wherein the sensor data includes: upper sensor data and lower sensor data.

3. The life monitoring method of the large tie rod corrugated compensator for heating according to claim 1 is characterized in that: Transmit sensor data to a central monitoring platform, including: Construct a central monitoring platform and establish data transmission channels between the large tie rod corrugated compensator for heating and the central monitoring platform; Perform data transmission test on the data transmission channel according to the transmission test data of the central monitoring platform. When the transmission test data is completely sent to the large tie rod corrugated compensator for heating and completely transmitted back from the large tie rod corrugated compensator for heating to the central monitoring platform, it is determined that the data transmission channel is successfully established; The sensor data is transmitted to the central monitoring platform according to the successfully established data transmission channel.

4. The method for monitoring the life of a large tie rod corrugated compensator for heating according to claim 3 is characterized in that: Build a central monitoring platform, including: Obtain the number of large tie rod corrugated compensators for heating and determine the number of monitoring devices on the central monitoring platform; Determine the data storage type of the central monitoring platform according to the sensor type of the large tie rod corrugated compensator for heating; The platform architecture is selected according to the working distribution of the large tie rod corrugated compensator for heating, and a central monitoring platform is constructed in combination with the monitoring quantity and data storage type, wherein the platform architecture includes: a distributed platform architecture and a centralized platform architecture.

5. The method for monitoring the life of a large tie rod corrugated compensator for heating according to claim 1, characterized in that: The sensor data received by the central monitoring platform is aggregated and analyzed to determine the current deformation data of the large tie rod corrugated compensator for heating, including: The sensor data received by the central monitoring platform is classified and summarized according to the large tie rod corrugated compensator for heating and sorted according to the transmission timing; According to the classification data summary results, the data credibility analysis of the large tie rod corrugated compensator for heating is carried out. When the upper sensor data is consistent with the lower sensor data, the classification data summary results are judged to be credible. When the upper sensor data is inconsistent with the lower sensor data, the classified data summary result data is determined to be unreliable, and the corresponding large tie rod corrugated compensator for heating is marked as a large tie rod corrugated compensator for heating with abnormal sensor data, and the sensor is redeployed and the sensor data is obtained again; The data credibility of the large tie rod corrugated compensator for heating is determined according to the number of reliable data of the classified data summary result and the number of retransmissions of the sensor redeployed and the sensor data acquired for the second time; Obtain displacement change data and temperature change data of the large tie rod bellows compensator for heating; Set a small threshold value for temperature monitoring change. When the temperature change data of the large tie rod corrugated compensator for heating exceeds the small threshold value for temperature monitoring change, it is determined that the large tie rod corrugated compensator for heating is working once. Determine the working times data of the large tie rod corrugated compensator for heating according to the times when the temperature change data of the large tie rod corrugated compensator for heating exceeds the small threshold value of the temperature monitoring change; According to the classification data summary results and data sorting results, the data deformation analysis of the large tie rod corrugated compensator for heating is performed, the historical sensor data is obtained, and the displacement range and working number threshold of the large tie rod corrugated compensator for heating are determined; When the displacement change data of the large tie rod corrugated compensator for heating is within the displacement range and the working number data does not exceed the working number threshold, it is determined that the deformation of the large tie rod corrugated compensator for heating is normal; When the displacement change data of the large tie rod corrugated compensator for heating is not within the displacement range or the working number data exceeds the working number threshold, it is determined that the deformation of the large tie rod corrugated compensator for heating is abnormal deformation; Obtain historical deformation data of the large tie rod corrugated compensator for heating, determine the displacement influence weight of the displacement change data on the deformation data and the number of working times data on the deformation data; The current deformation data of the large tie rod corrugated compensator for heating is determined based on the displacement change data and the working number data of the large tie rod corrugated compensator for heating combined with the displacement influence weight and the number influence weight.

6. The method for monitoring the life of a large tie rod corrugated compensator for heating according to claim 5, characterized in that: Construct a life prediction model for large tie rod corrugated compensators for heating, determine the current life data of large tie rod corrugated compensators for heating according to the current deformation data, and predict the remaining life data of large tie rod corrugated compensators for heating in combination with historical data, including: According to historical data and preset life models, a life model of a large tie rod corrugated compensator for heating is constructed, wherein the historical data includes: historical sensor data and historical deformation data, and the preset life model includes: a physical model and a data-driven model; Obtain the deformation data volume of the current deformation data, randomly select historical data with the same data volume as the current deformation data, record it as the current test data, and verify the life model of the large tie rod corrugated compensator for heating; When the life monitoring accuracy and life monitoring stability of the life model of the large tie rod corrugated compensator for heating are not lower than the preset model verification value, the model verification is judged to be qualified; Input the current deformation data into the life model of the large tie rod corrugated compensator for heating that has passed the model verification, and determine the current life data of the large tie rod corrugated compensator for heating; According to the displacement range and the threshold of the number of working times, the normal deformation threshold of the large tie rod corrugated compensator for heating is determined; Determine the deformation growth rate of the large tie rod bellows compensator for heating based on historical data; According to the current life data of the large tie rod corrugated compensator for heating, combined with the normal deformation threshold and deformation growth rate of the large tie rod corrugated compensator for heating, the remaining life data of the large tie rod corrugated compensator for heating is predicted; Among them, F represents the remaining life data of the large tie rod corrugated compensator for heating; xi1 represents the current displacement change data of the i1th current transmission sequence of the large tie rod corrugated compensator for heating; G(xi1) max It represents the maximum value of the current displacement change data output; X1 represents the displacement threshold; yi1 represents the current working times data of the i1th current transmission sequence; Y1 represents the working times threshold; a1 represents the displacement influence weight; a2 represents the times influence weight; b1 represents the current data credibility of the large tie rod corrugated compensator for heating; Z1 represents the normal deformation threshold of the large tie rod corrugated compensator for heating; F1 represents the current life data of the large tie rod corrugated compensator for heating; d1 represents the deformation growth rate of the large tie rod corrugated compensator for heating; n1 represents the number of current transmission sequences of the large tie rod corrugated compensator for heating.

7. The life monitoring method of the large tie rod corrugated compensator for heating according to claim 1 is characterized in that: Establish a life evaluation system for large tie rod corrugated compensators for heating. When it is determined that the large tie rod corrugated compensators for heating have reached the critical point of life, the central monitoring platform generates life warning data and implements preset maintenance strategies for the large tie rod corrugated compensators for heating that have reached the critical point of life, including: Set the life evaluation index of the large tie rod corrugated compensator for heating, establish the life evaluation system of the large tie rod corrugated compensator for heating, and determine the current life evaluation value of the large tie rod corrugated compensator for heating according to the remaining life data of the large tie rod corrugated compensator for heating, wherein the life evaluation index includes: displacement change evaluation index, working number evaluation index and working time evaluation index; Set the critical life point of the large tie rod corrugated compensator for heating, obtain the critical evaluation value corresponding to the critical life point, when the current life evaluation value of the large tie rod corrugated compensator for heating is not lower than the critical evaluation value, it is determined that the large tie rod corrugated compensator for heating has reached the critical life point, the central monitoring platform generates life warning data, and executes the preset maintenance strategy for the large tie rod corrugated compensator for heating that has reached the critical life point.

8. The method for monitoring the life of a large tie rod corrugated compensator for heating according to claim 1, characterized in that: Also includes: A user visualization interface is set up on the central monitoring platform to visualize the current life data, remaining life data, life critical point and preset maintenance strategy of the large tie rod corrugated compensator for heating; Set user access rights to allow users to manually monitor and manually control the large tie rod corrugated compensator for heating.

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