A method and device for evaluating the structural safety of a power plant dust collector based on monitoring

Abstract

The present disclosure provides a kind of based on the method and device for evaluating the safety degree of power plant dust remover structure based on monitoring, by the load variation and stress variation of the middle column, side middle column and angle column of dust remover are monitored in real time, the stress response ability of each key structural component is calculated, to judge the health state of dust remover layer by layer.When the health early warning value is lower than the preset health threshold, the system will timely issue an early warning, help to identify structural abnormalities, so that maintenance personnel can make accurate decisions.The method realizes the accurate early warning and real-time monitoring of power plant dust remover, significantly improves the safety and operating efficiency of the equipment, and effectively guarantees the stable operation of power plant.

Description

Technical Field

[0001] This invention relates to the field of steel structure safety monitoring and assessment, and in particular to a monitoring-based method and apparatus for assessing the structural safety of power plant dust collectors. Background Technology

[0002] Electrostatic precipitators and ash hoppers in power plants face multiple challenges during long-term operation, leading to a gradual deterioration in their structural health. First, as the load on the precipitator increases, the stress on the equipment gradually rises, potentially exceeding its design capacity, thus causing structural deformation and a potential risk of collapse. Second, the equipment is affected by corrosion and natural aging during operation, which accelerates material fatigue and further reduces structural safety. Furthermore, equipment manufacturers may deliver substandard products, making it difficult for the installed equipment to meet actual operational requirements.

[0003] In daily operations, inadequate inspection and maintenance, as well as oversights in operational patrols, can lead to the failure to detect and address potential problems in a timely manner. These factors collectively contribute to the frequent occurrence of collapse accidents, not only affecting the normal operation of the units but also threatening the safety of equipment operators, resulting in frequent personal injury incidents. More seriously, the economic losses caused by these accidents have a profound impact on the development of society and enterprises.

[0004] Therefore, structural health monitoring and assessment of equipment such as electrostatic precipitators and ash hoppers are particularly important. By establishing an effective health calculation model and combining parameters such as load changes, stress analysis, and material aging, we can dynamically assess the health status of the equipment. This assessment relies not only on static maintenance records but also on real-time monitoring and data analysis to promptly identify potential hazards, thereby improving equipment safety. For example, real-time monitoring of load changes helps us understand the load-bearing capacity of the equipment under different operating conditions, while stress analysis reveals the fatigue status of materials during operation. Monitoring the degree of material aging provides a prediction of the equipment's lifespan, ensuring timely maintenance measures. Through these comprehensive assessments, we can develop scientific maintenance plans, reduce accident risks, and ensure the stable operation of the power plant and the safety of personnel. Simultaneously, a sound monitoring and assessment system can provide reliable data support for the long-term development of the power plant, promote intelligent and refined equipment management, and ultimately achieve optimal resource allocation and improved economic benefits. Summary of the Invention

[0005] The first aspect of this disclosure provides a monitoring-based method for assessing the structural safety of a power plant dust collector, comprising the following steps:

[0006] The stress response capability is calculated by the load change and stress change of the column in the dust collector. The health warning value of the column in the dust collector is calculated based on its stress response capability. If the health warning value of the column in the dust collector is lower than its preset health threshold, the dust collector is determined to be in an unhealthy state.

[0007] If the health warning value of the central column of the dust collector is not lower than its preset health threshold, the stress response capability of the central column of the dust collector is calculated by the load change and stress change of the central column of the dust collector. The health warning value of the central column of the dust collector is calculated based on the stress response capability of the central column of the dust collector. If the health warning value of the central column of the dust collector is lower than its preset health threshold, the dust collector is determined to be in an unhealthy state.

[0008] If the health warning value of the dust collector's corner column is not lower than its preset health threshold, the stress response capability of the dust collector's corner column is calculated by the load change and stress change of the corner column. The health warning value of the dust collector's corner column is calculated based on the stress response capability of the corner column. If the health warning value of the dust collector's corner column is lower than its preset health threshold, the dust collector is determined to be in an unhealthy state; otherwise, the dust collector is determined to be in a healthy state.

[0009] In conjunction with the first aspect, the calculation of the stress response capability of the column in the dust collector using the load change and stress change includes the following formula:

[0010]

[0011] Wherein, ΔQ is the load change of the column in the dust collector, and Δσ is the stress change of the column in the dust collector.

[0012] In conjunction with the first aspect, the calculation of the stress response capability by the load change and stress change of the side column of the dust collector includes the following formula:

[0013]

[0014] Wherein, ΔQ is the load change of the side column of the dust collector, and Δσ is the stress change of the side column of the dust collector.

[0015] In conjunction with the first aspect, the stress response capability calculated by the load change and stress change of the dust collector corner column includes the following formula:

[0016]

[0017] Wherein, ΔQ is the load change of the corner column of the dust collector, and Δσ is the stress change of the corner column of the dust collector.

[0018] A second aspect of this disclosure provides a monitoring-based structural safety assessment device for power plant dust collectors, comprising:

[0019] The first calculation module is used to calculate the stress response capability of the column in the dust collector by the load change and stress change, and to calculate the health warning value of the column in the dust collector based on its stress response capability.

[0020] The first determination module is used to determine that the dust collector is in an unhealthy state if the health warning value of the column in the dust collector is lower than its preset health threshold.

[0021] The second calculation module is used to calculate the stress response capability of the side column of the dust collector by means of the load change and stress change of the side column of the dust collector if the health warning value of the side column of the dust collector is not lower than its preset health threshold, and to calculate the health warning value of the side column of the dust collector based on the stress response capability of the side column of the dust collector.

[0022] The second determination module is used to determine that the dust collector is in an unhealthy state if the health warning value of the side column of the dust collector is lower than its preset health threshold.

[0023] The third calculation module is used to calculate the stress response capability of the dust collector corner column by means of the load change and stress change of the dust collector corner column if the health warning value of the dust collector side column is not lower than its preset health threshold, and to calculate the health warning value of the dust collector corner column based on the stress response capability of the dust collector corner column.

[0024] The third determination module is used to determine that the dust collector is in an unhealthy state if the health warning value of the corner column of the dust collector is lower than its preset health threshold, and otherwise determine that the dust collector is in a healthy state.

[0025] In conjunction with the second aspect, the first calculation module specifically calculates the stress response capability using the following formula:

[0026]

[0027] Wherein, ΔQ is the load change of the column in the dust collector, and Δσ is the stress change of the column in the dust collector.

[0028] In conjunction with the second aspect, the second calculation module specifically calculates the stress response capability using the following formula:

[0029]

[0030] Wherein, ΔQ is the load change of the side column of the dust collector, and Δσ is the stress change of the side column of the dust collector.

[0031] In conjunction with the second aspect, the third calculation module specifically calculates the stress response capability using the following formula:

[0032]

[0033] Wherein, ΔQ is the load change of the corner column of the dust collector, and Δσ is the stress change of the corner column of the dust collector.

[0034] A third aspect of this disclosure provides an electronic device comprising:

[0035] One or more processors;

[0036] A storage unit for storing one or more programs, which, when executed by one or more processors, enable the one or more processors to implement any of the aforementioned monitoring-based power plant dust collector structural safety assessment methods.

[0037] A fourth aspect of this disclosure provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, enables any of the above-described monitoring-based structural safety assessment methods for power plant dust collectors.

[0038] Beneficial Effects: The monitoring-based structural safety assessment method and apparatus for power plant dust collectors of this invention monitors the load and stress changes of the central, side-central, and corner columns of the dust collector in real time, calculates the stress response capability of each key structural component, and thus judges the health status of the dust collector layer by layer. When the health warning value is lower than the preset health threshold, the system will issue a timely warning to help identify structural anomalies and facilitate accurate decision-making by maintenance personnel. This method achieves accurate early warning and real-time monitoring of power plant dust collectors, significantly improves equipment safety and operating efficiency, and effectively ensures the stable operation of the power plant. Attached Figure Description

[0039] Figure 1 This is a flowchart illustrating the monitoring-based structural safety assessment method for power plant dust collectors according to an embodiment of this disclosure.

[0040] Figure 2 This is a schematic diagram of the structure of an electronic device according to an embodiment of the present disclosure. Detailed Implementation

[0041] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with those disclosed herein.

[0042] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0043] like Figure 1 The diagram shown is a flowchart illustrating a monitoring-based structural safety assessment method for power plant dust collectors according to an embodiment of this disclosure, including:

[0044] S101: The stress response capability is calculated by the load change and stress change of the column in the dust collector. The health warning value of the column in the dust collector is calculated based on its stress response capability. If the health warning value of the column in the dust collector is lower than its preset health threshold, the dust collector is determined to be in an unhealthy state.

[0045] S102: If the health warning value of the dust collector's central column is not lower than its preset health threshold, then the stress response capability of the dust collector's central column is calculated by the load change and stress change of the dust collector's side column, and the health warning value of the dust collector's side column is calculated based on the stress response capability of the dust collector's side column. If the health warning value of the dust collector's side column is lower than its preset health threshold, then the dust collector is determined to be in an unhealthy state.

[0046] S103: If the health warning value of the dust collector's side column is not lower than its preset health threshold, then the stress response capability of the dust collector's corner column is calculated by the load change and stress change of the dust collector's corner column. The health warning value of the dust collector's corner column is calculated based on the stress response capability of the dust collector's corner column. If the health warning value of the dust collector's corner column is lower than its preset health threshold, then the dust collector is determined to be in an unhealthy state; otherwise, the dust collector is determined to be in a healthy state.

[0047] Specifically, step S101: First, check the central column. As the core supporting component of the dust collector, the central column bears the main load. Step S102: If the central column is healthy, check the side central columns. The side central columns support the central column and bear secondary loads to enhance the overall structural stability of the dust collector. Step S103: If the side central columns are healthy, check the corner columns. The corner columns are the outermost supporting structures, and their health directly affects the stability and safety of the entire dust collector.

[0048] Load Variation and Stress Response Calculation: The system first monitors the load and stress variations of the central column, and then uses a predetermined mathematical formula to calculate the stress response capability of the central column. This capability reflects the responsiveness and bearing capacity of the central column when subjected to external loads and environmental factors.

[0049] Health warning value setting: Based on the stress response capability of the central column, the system calculates the health warning value of the central column, which reflects the structural safety status of the central column. If the health warning value is lower than the health threshold set by the system (set based on operating experience and design limits), it indicates that the central column is in a dangerous or critical state.

[0050] Judgment result: If the health warning value of the central column is lower than the threshold, the system will determine that the dust collector is in an "unhealthy state" and needs to be repaired or replaced immediately. If the central column is healthy, the detection of the side columns will continue.

[0051] Monitoring and calculation of side and center columns: If the center column is healthy, the system further monitors the load and stress changes of the side and center columns and calculates their stress response capability. This detection step is mainly to verify whether the side and center columns can remain robust during long-term operation.

[0052] Calculation of the health warning value for edge and center columns: Similar to the center column, the health warning value for edge and center columns is calculated based on their stress response capacity. This health warning value reflects the current load-bearing capacity and safety status of the edge and center columns.

[0053] Judgment result: If the health warning value of the side column is lower than its health threshold, the dust collector is determined to be in an unhealthy state. If the health warning value of the side column is above the threshold, it indicates that its structure is robust, and the corner column testing can continue.

[0054] Corner column monitoring and calculation: If the central column and side columns are in good condition, the system then monitors the corner columns. Corner columns typically bear smaller loads, but their stability affects the overall support structure of the dust collector.

[0055] Calculation of corner column health warning value: By monitoring the load and stress changes of the corner columns, the system calculates their stress response capability and derives a health warning value. If the health warning value is lower than the threshold, the system will determine that the dust collector is in an unhealthy state.

[0056] Overall health status assessment: If the health warning value of the corner column meets the threshold, the system determines that the dust collector is in a healthy state.

[0057] Beneficial effects: This method can reflect the status of key components of the dust collector in real time and achieve accurate judgment through threshold comparison, reducing the possibility of misjudgment. When the health status of any key component falls below the set threshold, the system can immediately issue an early warning, facilitating maintenance personnel to take repair measures as early as possible. Layer-by-layer detection can gradually identify potential problems, ensuring structural safety from the core to the periphery, effectively extending the service life of the equipment, and avoiding overall failure due to local structural problems.

[0058] The stress response capability calculated from the load change and stress change of the column in the dust collector includes the following formula:

[0059]

[0060] Wherein, ΔQ is the load change of the column in the dust collector, and Δσ is the stress change of the column in the dust collector.

[0061] The stress response capability is calculated by the load change and stress change of the side column of the dust collector, including the following formula:

[0062]

[0063] Wherein, ΔQ is the load change of the side column of the dust collector, and Δσ is the stress change of the side column of the dust collector.

[0064] The stress response capability is calculated by the load change and stress change of the dust collector corner column using the following formula:

[0065]

[0066] Wherein, ΔQ is the load change of the corner column of the dust collector, and Δσ is the stress change of the corner column of the dust collector.

[0067] Based on the same inventive concept, this disclosure also provides a monitoring-based structural safety assessment device for power plant dust collectors, comprising:

[0068] The first calculation module is used to calculate the stress response capability of the column in the dust collector by measuring the load change and stress change, and to calculate the health warning value of the column in the dust collector based on its stress response capability.

[0069] Specifically, the first calculation module calculates the stress response capability using the following formula:

[0070]

[0071] Wherein, ΔQ is the load change of the column in the dust collector, and Δσ is the stress change of the column in the dust collector.

[0072] The first determination module is used to determine that the dust collector is in an unhealthy state if the health warning value of the column in the dust collector is lower than its preset health threshold.

[0073] The second calculation module is used to calculate the stress response capability of the dust collector side column by means of the load change and stress change of the dust collector side column if the health warning value of the dust collector side column is not lower than its preset health threshold, and to calculate the health warning value of the dust collector side column based on the stress response capability of the dust collector side column.

[0074] Specifically, the second calculation module calculates the stress response capability using the following formula:

[0075]

[0076] Wherein, ΔQ is the load change of the side column of the dust collector, and Δσ is the stress change of the side column of the dust collector.

[0077] The second determination module is used to determine that the dust collector is in an unhealthy state if the health warning value of the side column of the dust collector is lower than its preset health threshold.

[0078] The third calculation module is used to calculate the stress response capability of the dust collector corner column by means of the load change and stress change of the dust collector corner column if the health warning value of the dust collector corner column is not lower than its preset health threshold, and to calculate the health warning value of the dust collector corner column based on the stress response capability of the dust collector corner column.

[0079] Specifically, the third calculation module calculates the stress response capability using the following formula:

[0080]

[0081] Wherein, ΔQ is the load change of the corner column of the dust collector, and Δσ is the stress change of the corner column of the dust collector.

[0082] The third determination module is used to determine that the dust collector is in an unhealthy state if the health warning value of the corner column of the dust collector is lower than its preset health threshold, and otherwise determine that the dust collector is in a healthy state.

[0083] The monitoring-based structural safety assessment device for power plant dust collectors in this embodiment can reflect the status of each key component of the dust collector in real time and achieve accurate judgment through threshold comparison, reducing the possibility of misjudgment. When the health status of any key component falls below the set threshold, the system can immediately issue an early warning, facilitating maintenance personnel to take repair measures as soon as possible. Layer-by-layer detection can progressively identify potential problems, ensuring structural safety from the core to the periphery, effectively extending the service life of the equipment, and avoiding overall failure due to local structural problems.

[0084] Electronic device 200 can be a desktop computer, laptop, handheld computer, cloud server, or other electronic device. Electronic device 200 may include, but is not limited to, processor 201 and memory 202. Those skilled in the art will understand that... Figure 2 This is merely an example of electronic device 200 and does not constitute a limitation on electronic device 200. It may include more or fewer components than shown, or combine certain components, or different components. For example, electronic device may also include input / output devices, network access devices, buses, etc.

[0085] The processor 201 can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor.

[0086] The memory 202 can be an internal storage unit of the electronic device 200, such as a hard disk or RAM of the electronic device 200. The memory 202 can also be an external storage device of the electronic device 200, such as a plug-in hard disk, Smart Media Card (SMC), Secure Digital (SD) card, or Flash Card equipped on the electronic device 200. Furthermore, the memory 202 can include both internal and external storage units of the electronic device 200. The memory 202 is used to store the computer program 203 and other programs and data required by the electronic device. The memory 202 can also be used to temporarily store data that has been output or will be output.

[0087] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this disclosure. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0088] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0089] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0090] The above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit it. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this disclosure, and should all be included within the protection scope of this disclosure.

Claims

1. A method for assessing the structural safety of power plant dust collectors based on monitoring, characterized in that, Includes the following steps: The stress response capability is calculated by the load change and stress change of the column in the dust collector. The health warning value of the column in the dust collector is calculated based on its stress response capability. If the health warning value of the column in the dust collector is lower than its preset health threshold, the dust collector is determined to be in an unhealthy state. If the health warning value of the central column of the dust collector is not lower than its preset health threshold, the stress response capability of the central column of the dust collector is calculated by the load change and stress change of the central column of the dust collector. The health warning value of the central column of the dust collector is calculated based on the stress response capability of the central column of the dust collector. If the health warning value of the central column of the dust collector is lower than its preset health threshold, the dust collector is determined to be in an unhealthy state. If the health warning value of the dust collector's corner column is not lower than its preset health threshold, the stress response capability of the dust collector's corner column is calculated by the load change and stress change of the corner column. The health warning value of the dust collector's corner column is calculated based on the stress response capability of the corner column. If the health warning value of the dust collector's corner column is lower than its preset health threshold, the dust collector is determined to be in an unhealthy state; otherwise, the dust collector is determined to be in a healthy state.

2. The method for assessing the structural safety of power plant dust collectors based on monitoring according to claim 1, characterized in that, The stress response capability is calculated by the load change and stress change of the column in the dust collector using the following formula: Wherein, ΔQ is the load change of the column in the dust collector, and Δσ is the stress change of the column in the dust collector.

3. The method for assessing the structural safety of power plant dust collectors based on monitoring according to claim 1, characterized in that, The stress response capability is calculated by the load change and stress change of the side column of the dust collector, including the following formula: Wherein, ΔQ is the load change of the side column of the dust collector, and Δσ is the stress change of the side column of the dust collector.

4. The method for assessing the structural safety of power plant dust collectors based on monitoring according to claim 1, characterized in that, The stress response capability is calculated by the load change and stress change of the dust collector corner column using the following formula: Wherein, ΔQ is the load change of the corner column of the dust collector, and Δσ is the stress change of the corner column of the dust collector.

5. A monitoring-based structural safety assessment device for power plant dust collectors, characterized in that, include: The first calculation module is used to calculate the stress response capability of the column in the dust collector by the load change and stress change, and to calculate the health warning value of the column in the dust collector based on its stress response capability. The first determination module is used to determine that the dust collector is in an unhealthy state if the health warning value of the column in the dust collector is lower than its preset health threshold. The second calculation module is used to calculate the stress response capability of the side column of the dust collector by means of the load change and stress change of the side column of the dust collector if the health warning value of the side column of the dust collector is not lower than its preset health threshold, and to calculate the health warning value of the side column of the dust collector based on the stress response capability of the side column of the dust collector. The second determination module is used to determine that the dust collector is in an unhealthy state if the health warning value of the side column of the dust collector is lower than its preset health threshold. The third calculation module is used to calculate the stress response capability of the dust collector corner column by means of the load change and stress change of the dust collector corner column if the health warning value of the dust collector side column is not lower than its preset health threshold, and to calculate the health warning value of the dust collector corner column based on the stress response capability of the dust collector corner column. The third determination module is used to determine that the dust collector is in an unhealthy state if the health warning value of the corner column of the dust collector is lower than its preset health threshold, and otherwise determine that the dust collector is in a healthy state.

6. The monitoring-based structural safety assessment device for power plant dust collectors according to claim 5, characterized in that, The first calculation module specifically calculates the stress response capability using the following formula: Wherein, ΔQ is the load change of the column in the dust collector, and Δσ is the stress change of the column in the dust collector.

7. The monitoring-based structural safety assessment device for power plant dust collectors according to claim 5, characterized in that, The second calculation module specifically calculates the stress response capability using the following formula: Wherein, ΔQ is the load change of the side column of the dust collector, and Δσ is the stress change of the side column of the dust collector.

8. The monitoring-based structural safety assessment device for power plant dust collectors according to claim 5, characterized in that, The third calculation module specifically calculates the stress response capability using the following formula: Wherein, ΔQ is the load change of the corner column of the dust collector, and Δσ is the stress change of the corner column of the dust collector.

9. An electronic device, characterized in that, include: One or more processors; A storage unit for storing one or more programs that, when executed by one or more processors, enable the one or more processors to implement the monitoring-based power plant dust collector structural safety assessment method according to any one of claims 1 to 4.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it can implement the monitoring-based structural safety assessment method for power plant dust collectors according to any one of claims 1 to 4.

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