Methods, apparatus, storage media, and electronic equipment for determining abnormal conditions of supports and hangers.

Abstract

This disclosure relates to a method, apparatus, storage medium, and electronic device for determining the abnormal state of pipe supports, relating to the field of pipeline safety technology. The method includes: acquiring the operating stage of a boiler, including a start-up / shutdown stage or a stable operating stage; acquiring displacement data of multiple preset reference points on the supports of a heating pipeline, wherein the heating pipeline is the pipeline between the high-pressure cylinder exhaust port and the reheater inlet of the boiler; and determining the abnormal state of the supports based on the operating stage and the displacement data, wherein the abnormal state characterizes whether the supports are abnormal. This technical solution distinguishes between different operating stages to determine the abnormal state of the supports, considers stress changes in different operating stages, improves the accuracy of judging whether the supports are abnormal, and facilitates the development of more precise preventative maintenance plans.

Description

Technical Field

[0001] This disclosure relates to the field of pipeline safety technology, and in particular to a method, apparatus, storage medium, and electronic equipment for determining abnormal conditions of supports and hangers. Background Technology

[0002] The widespread use of pipe support systems has greatly improved the safety of above-ground heating pipelines. However, due to the long service life of these systems, problems such as component aging and loose bolts are prone to occur. Therefore, necessary routine maintenance is required during long-term service, such as replacing rusted or corroded parts and tightening loose bolts.

[0003] However, since the supports and hangers are often installed at high altitudes, manual inspection is inconvenient. Furthermore, manual inspection suffers from drawbacks such as high cost, lack of timeliness, and poor accuracy. Summary of the Invention

[0004] To overcome the problems existing in related technologies, this disclosure provides a method, apparatus, storage medium, and electronic equipment for determining abnormal states of supports and hangers.

[0005] According to a first aspect of the present disclosure, a method for addressing an abnormal state of a support or hanger is provided, comprising:

[0006] The boiler's operating phase is obtained, including the start-up and shutdown phase or the stable operating phase.

[0007] Obtain displacement data of multiple preset reference points on the supports and hangers of the heating pipeline, wherein the heating pipeline is the pipeline between the high-pressure cylinder exhaust port of the boiler and the reheater inlet;

[0008] Based on the working stage and the displacement data, the abnormal state of the support is determined, and the abnormal state is used to characterize whether the support is abnormal.

[0009] In one embodiment, determining the abnormal state of the support based on the working stage and the displacement data includes:

[0010] When the working stage is the start-up and shutdown stage, the first displacement change rate is calculated based on the displacement data;

[0011] If the first displacement change rate is greater than or equal to the first change rate threshold, the abnormal state is determined to represent an abnormality of the support.

[0012] In one embodiment, determining the abnormal state of the support based on the working stage and the displacement data includes:

[0013] When the working stage is the stable working stage, the abnormal state of the support is determined based on the number of supports and the displacement data.

[0014] In one embodiment, determining the state of the supports based on the number of supports and the displacement data includes:

[0015] When the quantity is one, the second displacement change rate in different directions is calculated based on the displacement data;

[0016] If the second displacement change rate is greater than or equal to the second change rate threshold, the abnormal state is determined to characterize the support and hanger abnormality.

[0017] In one embodiment, determining the state of the supports based on the number of supports and the displacement data includes:

[0018] When there are multiple supports, multiple displacement change values ​​of multiple supports are determined based on the displacement data;

[0019] Obtain the operating parameters of the boiler;

[0020] Based on the multiple displacement change values ​​and the operating parameters, multiple stability reference values ​​for supports and hangers are determined, and the stability reference values ​​are used to characterize the overall stability of the multiple supports and hangers.

[0021] If the stability score is less than or equal to the stability threshold, the abnormal state is determined to represent an abnormality in the support.

[0022] In one embodiment, determining the stability reference values ​​of multiple supports and hangers based on the multiple displacement change values ​​and the operating parameters includes:

[0023] Determine the multiple displacement changes and the coefficient of variation of the operating parameters;

[0024] Obtain the weighting coefficients of the multiple displacement change values ​​and the operating parameters;

[0025] Based on the coefficient of variation and the weighting coefficient, the stability reference values ​​of the plurality of supports and hangers are obtained.

[0026] In one embodiment, the method further includes:

[0027] When the abnormal state indicates that the support or hanger is abnormal, an alarm message is output. The alarm message is used to indicate the location of a preset reference point on the support or hanger where the abnormality has occurred.

[0028] According to a second aspect of the present disclosure, an apparatus for determining an abnormal state of a support or hanger is provided, comprising:

[0029] The acquisition module acquires the boiler's operating stage, which includes the start-up and shutdown stage or the stable operating stage.

[0030] The acquisition module is also used to acquire displacement data of multiple preset reference points on the supports and hangers of the heating pipeline, wherein the heating pipeline is the pipeline between the high-pressure cylinder exhaust port of the boiler and the reheater inlet.

[0031] The determination module is used to determine the abnormal state of the support and hanger based on the working stage and the displacement data, wherein the abnormal state is used to characterize whether the support and hanger is abnormal.

[0032] In one embodiment, the determining module is further configured to:

[0033] When the working stage is the start-up and shutdown stage, the first displacement change rate is calculated based on the displacement data;

[0034] If the first displacement change rate is greater than or equal to the first change rate threshold, the abnormal state is determined to represent an abnormality of the support.

[0035] In one embodiment, the determining module is further configured to:

[0036] When the working stage is the stable working stage, the abnormal state of the support is determined based on the number of supports and the displacement data.

[0037] In one embodiment, the determining module is further configured to:

[0038] When the quantity is one, the second displacement change rate in different directions is calculated based on the displacement data;

[0039] If the second displacement change rate is greater than or equal to the second change rate threshold, the abnormal state is determined to characterize the support and hanger abnormality.

[0040] In one embodiment, the determining module is further configured to determine multiple displacement change values ​​of multiple supports and hangers based on the displacement data when the number of supports and hangers is multiple.

[0041] The acquisition module is also used to acquire the operating parameters of the boiler;

[0042] The determining module is further configured to determine a plurality of stability reference values ​​for supports and hangers based on the plurality of displacement change values ​​and the operating parameters, wherein the stability reference values ​​are used to characterize the overall stability of the plurality of supports and hangers.

[0043] If the stability score is less than or equal to the stability threshold, the abnormal state is determined to represent an abnormality in the support.

[0044] In one embodiment, the determining module is further configured to:

[0045] Determine the multiple displacement changes and the coefficient of variation of the operating parameters;

[0046] Obtain the weighting coefficients of the multiple displacement change values ​​and the operating parameters;

[0047] Based on the coefficient of variation and the weighting coefficient, the stability reference values ​​of the plurality of supports and hangers are obtained.

[0048] In one embodiment, the apparatus further includes:

[0049] The output module is used to output alarm information when the abnormal state indicates that the support is abnormal. The alarm information is used to indicate the location of a preset reference point on the support where the abnormality occurs.

[0050] According to a third aspect of the present disclosure, a computer-readable storage medium is provided that stores computer program instructions thereon, which, when executed by a processor, implement the steps of the method for determining an abnormal state of a support provided in the first aspect of the present disclosure.

[0051] According to a fourth aspect of the present disclosure, an electronic device is provided, characterized in that it includes: a memory having a computer program stored thereon; and a processor for executing the computer program in the memory to implement the steps of the method for determining an abnormal state of a support provided in the first aspect of the present disclosure.

[0052] By using the above technical solution, displacement data of different working stages of the boiler and multiple reference points are obtained, and the displacement of the supports and hangers is analyzed in stages to determine the abnormal state of the supports and hangers. In this way, the abnormal state of the supports and hangers is determined by distinguishing different working stages, taking into account the stress changes in different working stages, improving the accuracy of judging whether the supports and hangers are abnormal, and facilitating the formulation of more accurate preventive maintenance plans.

[0053] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0054] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0055] Figure 1 This is a flowchart illustrating a method for determining support and hanger anomalies according to an exemplary embodiment.

[0056] Figure 2 This is a schematic diagram illustrating the setting position of a reference point according to an exemplary embodiment.

[0057] Figure 3 This is a flowchart illustrating a method for determining support and hanger anomalies according to an exemplary embodiment.

[0058] Figure 4 This is a flowchart illustrating a method for determining support and hanger anomalies according to an exemplary embodiment.

[0059] Figure 5 This is a block diagram illustrating an apparatus for determining an abnormal state of a support or hanger according to an exemplary embodiment.

[0060] Figure 6 This is a block diagram illustrating an electronic device according to an exemplary embodiment. Detailed Implementation

[0061] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0062] It should be noted that all actions involving the acquisition of signals, information, or data in this application are carried out in compliance with the relevant data protection laws and policies of the country where the application is located, and with the authorization granted by the owner of the relevant device.

[0063] The terms "first," "second," etc., used in this disclosure, claims, and the accompanying drawings are for distinguishing similar objects and are not necessarily construed as indicating a specific order or sequence. Furthermore, in the description with reference to the accompanying drawings, the same reference numerals in different drawings denote the same elements.

[0064] In the description of this disclosure, unless otherwise stated, "multiple" means two or more, and other quantifiers are similar; "at least one," "one or more," or similar expressions refer to any combination of these items, including any combination of singular or plural items. For example, at least one 'a' can represent any number of 'a's; as another example, one or more of a, b, and c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple; "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone, where A and B can be singular or plural. The character " / " indicates that the preceding and following related objects are in an "or" relationship.

[0065] Although operations or steps are described in a specific order in the accompanying drawings in the embodiments of this disclosure, it should not be construed as requiring these operations or steps to be performed in the specific order or serial order shown, or requiring all of the shown operations or steps to be performed to obtain the desired result. In the embodiments of this disclosure, these operations or steps may be performed serially; they may be performed in parallel; or a portion of these operations or steps may be performed.

[0066] Figure 1 This is a flowchart illustrating a method for determining support and hanger anomalies according to an exemplary embodiment, such as... Figure 1 As shown, the method for handling abnormal conditions of the support bracket is applied to a vehicle and includes the following steps.

[0067] In step S101, the working stage of the boiler is obtained.

[0068] The working phases include the start-up and shutdown phases or the stable operation phases.

[0069] In this embodiment, the start-up and shutdown phase refers to either the ignition start-up phase or the phase after the fuel supply is stopped.

[0070] In this embodiment, the stable operating stage refers to the stage where the boiler steam pressure is stable.

[0071] In some embodiments, step S101 includes: determining the boiler's operating stage based on flue gas and equipment parameters. The equipment parameters include reheater inlet steam temperature, reheater inlet steam pressure, reheater outlet steam temperature, reheater outlet steam pressure, reheat steam flow rate, and unit load.

[0072] In step S102, displacement data of multiple preset reference points on the supports and hangers of the heating pipeline are obtained.

[0073] Among them, the heating pipeline is the pipeline between the high-pressure cylinder exhaust port of the boiler and the inlet of the reheater.

[0074] In some embodiments, the heating pipe is also referred to as the "reheat section".

[0075] In this embodiment, the positions of the multiple preset reference points can be the reference point at the bottom of the vertical pipe or the reference points at both ends of the horizontal pipe.

[0076] For example, Figure 2 This is a schematic diagram illustrating the setting position of a reference point according to an exemplary embodiment. See also... Figure 2 As shown, in order to save costs, only one reference point can be set at the connection between the vertical and horizontal pipes.

[0077] In some embodiments, step S102 includes: receiving raw displacement data and distributing the parameters evenly over time based on an interpolation algorithm. Accordingly, after step S102, the method for determining the abnormal state of the support may further include: removing the unqualified portions of the raw displacement data to obtain displacement data.

[0078] Since the time series of the parameters in the original data are mismatched, it is necessary to normalize the time series of each parameter and establish a parameter index according to the time series to ensure that each parameter can be matched one by one. For example, linear interpolation is used to process discrete points. After interpolation, it is ensured that the time series of each parameter grows uniformly. Equipment parameters under unstable load conditions and abnormal conditions, as well as outliers such as blank values, missing values, and out-of-limit values, are cleaned up.

[0079] In step S103, the abnormal state of the support is determined based on the working stage and displacement data.

[0080] Among them, abnormal status is used to characterize whether the support and hanger are abnormal.

[0081] In this embodiment, the boiler's operating status and load conditions differ significantly between the start-up and shutdown phases and the stable operation phase, resulting in different stress conditions on the supports and hangers. Therefore, it is necessary to distinguish between the operating phases to more accurately determine any abnormal conditions of the supports and hangers.

[0082] By using the above method, displacement data of different working stages of the boiler and multiple reference points are obtained, and the displacement of the supports and hangers is analyzed in stages to determine the abnormal state of the supports and hangers. In this way, the abnormal state of the supports and hangers is determined by distinguishing different working stages, taking into account the stress changes in different working stages, improving the accuracy of judging whether the supports and hangers are abnormal, and facilitating the development of more accurate preventive maintenance plans.

[0083] In some embodiments, step S103 may further include the following steps.

[0084] When the working phase is the start-up and shutdown phase, the first displacement change rate is calculated based on the displacement data;

[0085] If the first rate of change of displacement is greater than or equal to the first rate of change threshold, an abnormal state is determined to characterize the support and hanger abnormality.

[0086] In this embodiment, the first rate of change threshold can be set according to actual needs.

[0087] For example, the rate of change of the first displacement is defined as δ, and the rate of change of the first displacement can be calculated using the following formula:

[0088]

[0089] In formula (1), the first displacement change rate δ is the displacement of the support in the Z direction per unit time.

[0090] It should be noted that, since the support brackets have limit designs in both the X and Y directions, and the displacement during the start-up and shutdown phases is mainly in the Z direction, in order to save computing resources, the displacement data in this embodiment is the displacement data in the Z direction, and the first displacement change rate is the displacement change rate in the Z direction.

[0091] In one possible implementation, the supports and hangers are divided into two types: constant force supports and hangers and spring supports and hangers. Different supports and hangers correspond to different first rate of change thresholds.

[0092] Using the above method, the first rate of change is calculated based on the displacement data during the start-up and shutdown phases. Then, when the first rate of change is greater than or equal to the first rate of change threshold, the abnormal state of the support and hanger is determined. This method can accurately identify abnormal situations of the support and hanger, saving manpower costs.

[0093] In some embodiments, step S103 may further include the following steps.

[0094] A1. When the working stage is a stable working stage, determine the abnormal state of the supports and hangers based on the number of supports and hangers and displacement data.

[0095] In this embodiment, the stable operation phase is different from the start-up and shutdown phase, and the displacement of the support and hanger is in a fluctuating state. Therefore, a distinction is made between a single support and hanger and a support and hanger system composed of multiple supports and hangers.

[0096] In some embodiments, determining the abnormal state of the supports and hangers in A1 based on the number of supports and hangers and displacement data may include the following steps.

[0097] In step S301, when the quantity is one, the second displacement change rate in different directions is calculated based on the displacement data;

[0098] In step S302, if the second displacement change rate is greater than or equal to the second change rate threshold, an abnormal state characterizing the support and hanger is determined.

[0099] In this embodiment, the second displacement change rate in different directions corresponds to different second change rate thresholds. If any second displacement change rate is greater than or equal to the second change rate threshold among the multiple second displacement change rates corresponding to different directions, an abnormal state is determined to characterize the support and hanger abnormality.

[0100] For example, the rate of change of the second displacement is defined as β. The rate of change of the second displacement in different directions can be calculated in the following way:

[0101]

[0102]

[0103]

[0104] In formulas (2), (3), and (4), Δx, Δy, and Δz represent the displacement changes in the x, y, and z directions, respectively; x j y j z j The design values ​​are the upper limits of displacement in the x, y, and z directions.

[0105] In this embodiment, the support hanger has a limit design in both the X and Y directions, so the limit hanger in the x and y directions is allowed to fluctuate slightly in the design value.

[0106] In this embodiment, the second rate of change thresholds for different directions can be set according to actual needs. For example, the second rate of change thresholds for the X and Y directions are 5%.

[0107] In one possible implementation, the supports and hangers are divided into two types: constant force supports and hangers and spring supports and hangers. Different supports and hangers correspond to different second rate of change thresholds. For example, the second rate of change threshold for constant force supports and hangers is 20%, while the second rate of change threshold for spring supports and hangers is 50% to 100%.

[0108] Using the above method, the displacement change rate of a single support in different directions is calculated during the stable working phase, providing more reliable, real-time and in-depth support status information for judgment.

[0109] In some embodiments, when the quantity is one, step S102 may further include:

[0110] Acquire displacement period data of multiple preset reference points within a preset time period;

[0111] Accordingly, step S103 may also include the following steps:

[0112] Determine the coefficient of variation for a single support based on displacement period data;

[0113] Based on the coefficient of variation of a single support, a reference value for the stability of a single support is obtained;

[0114] When the stability reference value of a single support or hanger is greater than or equal to the stability threshold, an abnormal state is identified to characterize the support or hanger as abnormal.

[0115] It should be noted that since the displacement of supports and hangers fluctuates during the stable operating phase, the coefficient of variation (CV) method is used to evaluate the stability reference value of individual supports and hangers. The CV is a normalized measure of the dispersion of a probability distribution and can be used to measure the stability of the expansion displacement and operating parameters of supports and hangers. A lower CV usually indicates that the displacement of supports and hangers is relatively stable during the boiler's stable phase, while a higher CV may indicate fluctuations or instability in the supports and hangers.

[0116] For example, for the coefficient of variation C V The specific formula for calculating is as follows:

[0117]

[0118] In formula (5), σ is the standard deviation of the sample and μ is the mean of the sample.

[0119] The stability reference value for a single support is defined as Q1, and the specific formula for calculation is as follows:

[0120]

[0121] In formula (6), C V,min C is within the preset time period V The minimum value of C; V,max C is within the preset time period V The maximum value, C is within the preset time period V The average value.

[0122] In this way, the displacement of the supports and hangers can be quantitatively assessed by using the coefficient of variation of the supports and hangers, which facilitates the assessment of the overall condition of the heating pipeline.

[0123] In some embodiments, see Figure 4 In A1, the abnormal state of the supports and hangers is determined based on the number of supports and hangers and displacement data, which may include the following steps.

[0124] In step S401, when there are multiple supports, multiple displacement change values ​​of multiple supports are determined based on displacement data.

[0125] In step S402, the operating parameters of the boiler are obtained.

[0126] In step S403, stability reference values ​​for multiple supports and hangers are determined based on multiple displacement change values ​​and operating parameters.

[0127] In step S404, if the stability score is less than or equal to the stability threshold, an abnormal state characterizing the support is determined to be abnormal.

[0128] In this embodiment, the boiler operating parameters include: reheater inlet steam temperature, reheater inlet steam pressure, reheater outlet steam temperature, reheater outlet steam pressure, reheat steam flow rate, and unit load.

[0129] In this embodiment, the stability reference value is used to characterize the overall stability of multiple supports and hangers.

[0130] In this embodiment, the stability threshold can be set according to actual needs.

[0131] In some embodiments, step S403 may include the following steps.

[0132] Determine the coefficient of variation for multiple displacement changes and operating parameters;

[0133] Obtain the weighting coefficients of multiple displacement change values ​​and operating parameters;

[0134] Based on the coefficient of variation and weighting coefficient, the stability reference values ​​of multiple supports and hangers are obtained.

[0135] In this embodiment, the weighting coefficients characterize the displacement changes in each direction and the degree of influence of each operating parameter on the support displacement. In other words, the weighting coefficients reflect the degree of influence of each parameter on the overall support. In practical applications, the weighting coefficients of each parameter can be set as needed.

[0136] In one possible implementation, determining the coefficient of variation of multiple displacement change values ​​and operating parameters includes: for any given hanger, determining multiple displacement change values ​​of that hanger in different directions; and determining the coefficient of variation of the displacement change values ​​of that hanger based on the multiple displacement change values ​​in different directions.

[0137] In one possible implementation, obtaining the stability reference values ​​of multiple supports and hangers based on the coefficient of variation and the weighting coefficient includes: weighting and summing the coefficients of variation according to the weighting coefficients to obtain the stability reference values ​​of multiple supports and hangers.

[0138] In another possible implementation, obtaining the stability reference values ​​for multiple supports and hangers based on the coefficient of variation and weighting coefficients includes: constructing a weight matrix based on the weighting coefficients of multiple displacement changes and operating parameters; constructing an evaluation matrix based on the coefficient of variation of multiple displacement changes and operating parameters, which is used to determine the influence of each parameter on stability; multiplying the standardized evaluation matrix with the weight matrix to obtain a weighted judgment matrix, which is used to evaluate the stability of the support and hanger system composed of multiple supports and hangers; and solving the weighted judgment matrix to obtain the stability reference values ​​for multiple supports and hangers.

[0139] For example, based on obtaining multiple weight coefficients ζ1...ζ nConstruct a weight matrix A as shown below:

[0140]

[0141] The obtained multiple coefficients of variation are used to construct an evaluation matrix Z, as shown below:

[0142]

[0143] The evaluation matrix is ​​standardized, and the standardized elements are z. i ′ j The specific formula is shown below:

[0144]

[0145] The standardized evaluation matrix is ​​as follows:

[0146]

[0147] The result of multiplying the elements of the weight matrix A and the elements of the standardized evaluation matrix Z' is defined as the influence index r. ij The specific formula is as follows:

[0148] r ij =z′ ij ζ j (i=1,2,…,m; j=1,2,…,n) (8)

[0149] Based on multiple influencing indicators r ij The weighted judgment matrix R is obtained as follows:

[0150]

[0151] The maximum and minimum values ​​of each row of the weighted judgment matrix R are called the positive ideal solution (optimal solution). and negative ideal solution (worst solution) The specific formula is as follows:

[0152]

[0153]

[0154] Define the Euclidean distance between the j-th influence index and the optimal solution as: Define the Euclidean distance between the j-th influence index and the worst solution as: The specific formula is as follows:

[0155]

[0156]

[0157] Finally, the total score Q2 of the support and hanger system is obtained, and the specific formula is as follows:

[0158]

[0159] By adopting the above method, the influence of multiple factors on the stability of the support and hanger can be comprehensively considered, which is conducive to a more comprehensive evaluation of various aspects of the displacement of the support and hanger. Furthermore, it provides intuitive and easy-to-understand stability reference values ​​so that operators can clearly understand the relative performance of the support and hanger.

[0160] In some embodiments, the method for determining the abnormal state of the support and hanger may further include the following steps.

[0161] When an abnormal condition indicates an abnormality in the support or hanger, an alarm message is output.

[0162] The alarm information is used to indicate the location of a preset reference point where an anomaly has occurred on the support.

[0163] In this way, by setting a warning threshold, an alarm message is issued when the critical value is reached, providing more reliable, real-time and in-depth information on the status of supports and hangers.

[0164] Figure 5 This is a block diagram illustrating an apparatus for determining an abnormal state of a support or hanger, according to an exemplary embodiment. (Refer to...) Figure 5 The device includes an acquisition module 501 and a determination module 502.

[0165] Module 501 acquires the boiler's operating stage, which includes the start-up and shutdown stage or the stable operating stage.

[0166] The acquisition module 501 is also used to acquire displacement data of multiple preset reference points on the supports and hangers of the heating pipeline, which is the pipeline between the high-pressure cylinder exhaust port of the boiler and the reheater inlet.

[0167] The determination module 502 is used to determine the abnormal state of the support and hanger based on the working stage and displacement data. The abnormal state is used to characterize whether the support and hanger is abnormal.

[0168] In one embodiment, the determining module 502 is further configured to:

[0169] When the working phase is the start-up and shutdown phase, the first displacement change rate is calculated based on the displacement data;

[0170] If the first rate of change of displacement is greater than or equal to the first rate of change threshold, an abnormal state is determined to characterize the support and hanger abnormality.

[0171] In one embodiment, the determining module 502 is further configured to:

[0172] When the working phase is a stable working phase, the abnormal state of the supports and hangers is determined based on the number of supports and hangers and displacement data.

[0173] In one embodiment, the determining module 502 is further configured to:

[0174] When there is only one displacement, calculate the rate of change of the second displacement in different directions based on the displacement data;

[0175] If the second rate of change of displacement is greater than or equal to the second rate of change threshold, an abnormal state is identified to characterize the support and hanger abnormality.

[0176] In one embodiment, the determining module 502 is further configured to determine multiple displacement change values ​​of multiple supports and hangers based on displacement data when there are multiple supports and hangers.

[0177] The acquisition module 501 is also used to acquire the boiler's operating parameters;

[0178] The determination module 502 is also used to determine the stability reference values ​​of multiple supports and hangers based on multiple displacement change values ​​and operating parameters. The stability reference values ​​are used to characterize the overall stability of the multiple supports and hangers.

[0179] When the stability score is less than or equal to the stability threshold, an abnormal state is identified to characterize the support and hanger abnormality.

[0180] In one embodiment, the determining module 502 is further configured to:

[0181] Determine the coefficient of variation for multiple displacement changes and operating parameters;

[0182] Obtain the weighting coefficients of multiple displacement change values ​​and operating parameters;

[0183] Based on the coefficient of variation and weighting coefficient, the stability reference values ​​of multiple supports and hangers are obtained.

[0184] In one embodiment, the apparatus further includes:

[0185] The output module (not shown in the figure) is used to output alarm information when the abnormal state indicates that the support is abnormal. The alarm information is used to indicate the location of the preset reference point on the support where the abnormality occurred.

[0186] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0187] Figure 6 This is a block diagram illustrating an electronic device 600 according to an exemplary embodiment. For example... Figure 6As shown, the electronic device 600 may include a processor 601 and a memory 602. The electronic device 600 may also include one or more of a multimedia component 603, an input / output (I / O) interface 604, and a communication component 605.

[0188] The processor 601 controls the overall operation of the electronic device 600 to complete all or part of the steps in the aforementioned electronic device control method. The memory 602 stores various types of data to support the operation of the electronic device 600. This data may include, for example, instructions for any application or method operating on the electronic device 600, and application-related data such as contact data, sent and received messages, pictures, audio, video, etc. The memory 602 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The multimedia component 603 may include a screen and audio components. The screen may be, for example, a touchscreen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signals may be further stored in memory 602 or transmitted via communication component 605. The audio component also includes at least one speaker for outputting audio signals. I / O interface 604 provides an interface between processor 601 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual or physical buttons. Communication component 605 is used for wired or wireless communication between the electronic device 600 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IoT, eMTC, or other 5G technologies, or combinations thereof, is not limited here. Therefore, the corresponding communication component 605 may include: a Wi-Fi module, a Bluetooth module, an NFC module, etc.

[0189] In an exemplary embodiment, the electronic device 600 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above-described method for determining the abnormal state of the support bracket.

[0190] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, which, when executed by a processor, implement the steps of the electronic device control method described above. For example, the computer-readable storage medium may be the memory 602 including program instructions described above, which may be executed by the processor 601 of the electronic device 600 to complete the method for determining the abnormal state of the support bracket described above.

[0191] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0192] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0193] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A method for determining the abnormal state of a support or hanger, characterized in that, The method includes: The boiler's operating phase is obtained, including the start-up and shutdown phase or the stable operating phase. Obtain displacement data of multiple preset reference points on the supports and hangers of the heating pipeline, wherein the heating pipeline is the pipeline between the high-pressure cylinder exhaust port of the boiler and the reheater inlet; Based on the working stage and the displacement data, the abnormal state of the support is determined, and the abnormal state is used to characterize whether the support is abnormal. The step of determining the abnormal state of the support based on the working stage and the displacement data includes: If the working phase is a stable working phase: When there is only one support, the second displacement change rate in different directions is calculated based on the displacement data; if the second displacement change rate is greater than or equal to the second displacement change rate threshold, the abnormal state is determined to indicate that the support is abnormal. When there are multiple supports and hangers, multiple displacement change values ​​of multiple supports and hangers are determined based on the displacement data; the operating parameters of the boiler are obtained; based on the multiple displacement change values ​​and the operating parameters, a stability reference value of multiple supports and hangers is determined, and the stability reference value is used to characterize the overall stability of the multiple supports and hangers; if the stability score is less than or equal to the stability threshold, the abnormal state is determined to characterize the abnormality of the supports and hangers. The step of determining the stability reference values ​​of multiple supports and hangers based on the multiple displacement change values ​​and the operating parameters includes: determining the coefficients of variation of the multiple displacement change values ​​and the operating parameters; obtaining the weighting coefficients of the multiple displacement change values ​​and the operating parameters; and obtaining the stability reference values ​​of the multiple supports and hangers based on the coefficients of variation and the weighting coefficients.

2. The method according to claim 1, characterized in that, The step of determining the abnormal state of the support based on the working stage and the displacement data includes: When the working stage is the start-up and shutdown stage, the first displacement change rate is calculated based on the displacement data; If the first displacement change rate is greater than or equal to the first displacement change rate threshold, the abnormal state is determined to represent an abnormality in the support.

3. The method according to any one of claims 1 or 2, characterized in that, The method further includes: When the abnormal state indicates that the support or hanger is abnormal, an alarm message is output. The alarm message is used to indicate the location of a preset reference point on the support or hanger where the abnormality has occurred.

4. A device for determining the state of a support or hanger, characterized in that, include: The acquisition module is used to acquire the working stage of the boiler and the operating parameters of the boiler, wherein the working stage includes the start-up and shutdown stage or the stable working stage; The acquisition module is also used to acquire displacement data of multiple preset reference points on the supports and hangers of the heating pipeline, wherein the heating pipeline is the pipeline between the high-pressure cylinder exhaust port of the boiler and the reheater inlet. The determination module is used to determine the abnormal state of the support and hanger based on the working stage and the displacement data, wherein the abnormal state is used to characterize whether the support and hanger is abnormal; The determining module is further configured to, when the working phase is a stable working phase: When the number of supports is one, the second displacement change rate in different directions is calculated based on the displacement data; If the second displacement change rate is greater than or equal to the second displacement change rate threshold, the abnormal state is determined to represent an abnormality of the support and hanger. When there are multiple supports and hangers, multiple displacement change values ​​of the multiple supports and hangers are determined based on the displacement data; Based on the multiple displacement change values ​​and the operating parameters, multiple stability reference values ​​for supports and hangers are determined. These stability reference values ​​are used to characterize the overall stability of the multiple supports and hangers. If the stability score is less than or equal to the stability threshold, the abnormal state is determined to characterize the abnormality of the supports and hangers. The determining module is further configured to determine the coefficient of variation of the plurality of displacement change values ​​and the operating parameters; obtain the weighting coefficients of the plurality of displacement change values ​​and the operating parameters; and obtain the stability reference values ​​of the plurality of supports and hangers based on the coefficient of variation and the weighting coefficients.

5. The apparatus according to claim 4, characterized in that, The determining module is further configured to: When the working stage is the start-up and shutdown stage, the first displacement change rate is calculated based on the displacement data; If the first displacement change rate is greater than or equal to the first displacement change rate threshold, the abnormal state is determined to represent an abnormality in the support.

6. The apparatus according to any one of claims 4 or 5, characterized in that, The device further includes: The output module is used to output alarm information when the abnormal state indicates that the support is abnormal. The alarm information is used to indicate the location of a preset reference point on the support where the abnormality occurs.

7. A computer-readable storage medium having computer program instructions stored thereon, characterized in that, When executed by a processor, the program instructions implement the steps of the method according to any one of claims 1 to 3.

8. An electronic device, characterized in that, Including the processor; Memory used to store processor-executable instructions; The processor is configured to implement the steps of the method according to any one of claims 1 to 3 when executing instructions stored in the memory.

Images