Thermal power generation centrifugal fan maintenance control method, device and equipment based on RCM and storage medium

Abstract

The invention discloses an RCM-based thermal power generation centrifugal fan maintenance control method, device and equipment and a storage medium, and relates to the technical field of equipment maintenance. The method comprises the steps that the current bearing temperature, vibration displacement and gas proportion parameters of the centrifugal fan are obtained, and working condition parameters of the centrifugal fan are constructed; the working condition parameters are compared with a preset threshold value range, and the fault degrees of a sleeve, a bearing and an impeller in the centrifugal fan are judged; according to the fault degree corresponding to each component, the current corresponding risk level of the centrifugal fan is judged in a risk level preset table; and when the risk grade of the centrifugal fan is the first risk grade, the centrifugal fan is driven to execute a shutdown strategy, and meanwhile a maintenance alarm is given out. Equipment maintenance is carried out according to the equipment fault degree of the centrifugal fan and the possibly-caused risk level, the shutdown maintenance frequency is reduced, cost loss caused by the over-maintenance condition is avoided, and meanwhile long-term stable operation of equipment is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of equipment maintenance, and in particular to a maintenance control method, device, equipment and storage medium for a thermal power generation centrifugal fan based on RCM. Background Art

[0002] In thermal power generation, centrifugal fans play an important role. They are responsible for providing the necessary amount of air to the boiler to ensure the efficiency and safety of the combustion process. Therefore, maintaining the stable operation of centrifugal fans is one of the key points of daily maintenance of thermal power plants.

[0003] At present, the management of electrical equipment in many thermal power plants is basically in a relatively traditional management mode. The enterprise equipment management is imperfect and the human factor has a great influence. That is, the traditional maintenance mode of "more inspections, more repairs, more maintenance, the more the better" and "repair after failure" still dominates, resulting in a large number of unplanned shutdowns. The unplanned shutdown of equipment has a great impact on safety, environment and cost.

[0004] The above contents are only used to assist in understanding the technical solution of the present application and do not constitute an admission that the above contents are prior art. Summary of the invention

[0005] The main purpose of this application is to provide a maintenance control method, device, equipment and storage medium for a centrifugal fan in a thermal power generation system based on RCM, aiming to solve the technical problems in the prior art of a large number of unplanned shutdowns for maintenance of centrifugal fans in a thermal power generation system, which affects the safety, environment and cost of equipment operation.

[0006] To achieve the above objectives, the present application proposes a maintenance control method for a centrifugal fan for thermal power generation based on RCM, and the maintenance control method for a centrifugal fan for thermal power generation based on RCM comprises:

[0007] Obtain the current bearing temperature, vibration displacement and gas ratio parameters of the centrifugal fan, and construct the working condition parameters of the centrifugal fan;

[0008] By comparing the working condition parameters with a preset threshold range, the degree of failure of the casing, bearing and impeller components in the centrifugal fan is determined;

[0009] According to the fault degree corresponding to each component, determine the risk level currently corresponding to the centrifugal fan in the risk level preset table;

[0010] When the risk level of the centrifugal fan is the first risk level, the centrifugal fan is driven to execute a shutdown strategy and a maintenance alarm is issued at the same time.

[0011] In one embodiment, before the step of determining the risk level currently corresponding to the centrifugal fan in a preset risk level table according to the fault degree corresponding to each component, the step includes:

[0012] Obtaining the failure risks corresponding to the casing, bearing and impeller components of the centrifugal fan, so as to classify the components into high-risk components, medium-risk components and low-risk components according to the failure risks;

[0013] Constructing a preset risk level table for the centrifugal fan according to the failure risk of each component and the failure degree;

[0014] Among them, the first risk level in the risk level preset table is that the failure degree of any component is a serious failure, the second risk level is that at least one high-risk component is a minor failure, the third risk level is that at least one medium-risk component is a minor failure, and the fourth risk level is that at least one low-risk component is a minor failure.

[0015] In one embodiment, after the step of determining the risk level currently corresponding to the centrifugal fan in the risk level preset table according to the fault degree corresponding to each component, the method further includes:

[0016] When the risk level of the centrifugal fan is the second risk level, the centrifugal fan is maintained to operate at a low power, and a maintenance alarm of the centrifugal fan is issued.

[0017] In one embodiment, after the step of determining the risk level currently corresponding to the centrifugal fan in the risk level preset table according to the fault degree corresponding to each component, the method further includes:

[0018] When the risk level of the centrifugal fan is the third risk level, the operation of the centrifugal fan is maintained and a maintenance alarm of the centrifugal fan is issued.

[0019] In one embodiment, after the step of determining the risk level currently corresponding to the centrifugal fan in the risk level preset table according to the fault degree corresponding to each component, the method further includes:

[0020] When the risk level of the centrifugal fan is the fourth risk level, the operation of the centrifugal fan is maintained, and no maintenance alarm of the centrifugal fan is issued.

[0021] In one embodiment, the step of comparing the working condition parameter with a preset threshold range to determine the degree of failure of the casing, bearing and impeller components in the centrifugal fan includes:

[0022] Comparing the bearing temperature, vibration displacement and gas proportion parameters in the working condition parameters with their corresponding preset threshold ranges;

[0023] When the value exceeds the lower limit of the preset threshold range and is lower than the upper limit of the preset threshold range, it is judged that the component of the centrifugal fan corresponding to the working condition parameter is in a minor fault;

[0024] When the upper limit of the preset threshold range is exceeded, it is determined that the component of the centrifugal fan corresponding to the working condition parameter is in serious failure.

[0025] In one embodiment, after the step of comparing the working condition parameter with a preset threshold range to determine the degree of failure of the casing, bearing and impeller components in the centrifugal fan, the step further includes:

[0026] For each component of the centrifugal fan judged to be faulty, a fault indicator light of the corresponding component is driven to light up to indicate the fault.

[0027] In addition, to achieve the above-mentioned purpose, the present application also proposes a maintenance control device for a centrifugal fan of a thermal power generation based on RCM, and the maintenance control device for a centrifugal fan of a thermal power generation based on RCM comprises:

[0028] A parameter acquisition module, used to acquire the current bearing temperature, vibration displacement and gas ratio parameters of the centrifugal fan, and construct the working condition parameters of the centrifugal fan;

[0029] A fault judgment module, used to judge the degree of fault of the casing, bearing and impeller components in the centrifugal fan by comparing the working condition parameters with a preset threshold range;

[0030] A risk determination module, configured to determine the risk level currently corresponding to the centrifugal fan in a preset risk level table according to the fault level corresponding to each component;

[0031] A maintenance control module is used to drive the centrifugal fan to execute a shutdown strategy and issue a maintenance alarm when the risk level of the centrifugal fan is a first risk level.

[0032] In addition, to achieve the above-mentioned objectives, the present application also proposes a RCM-based thermal power generation centrifugal fan maintenance control device, the device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the RCM-based thermal power generation centrifugal fan maintenance control method as described above.

[0033] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by the processor, the steps of the RCM-based thermal power generation centrifugal fan maintenance control method as described above are implemented.

[0034] The present application provides a maintenance control method for a thermal power generation centrifugal fan based on RCM. The present application first constructs the working condition parameters of the centrifugal fan by acquiring the current bearing temperature, vibration displacement and gas proportion parameters of the centrifugal fan; compares the working condition parameters with the preset threshold range to determine the degree of failure of the casing, bearing and impeller components in the centrifugal fan; determines the current corresponding risk level of the centrifugal fan in the risk level preset table according to the degree of failure corresponding to each component; when the risk level of the centrifugal fan is the first risk level, drives the centrifugal fan to execute the shutdown strategy and issues a maintenance alarm. By taking the equipment failure degree of the centrifugal fan and the possible risk level to perform equipment maintenance, the frequency of shutdown maintenance is reduced, the cost loss caused by excessive maintenance is avoided, and the long-term stable operation of the equipment is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0036] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0037] Figure 1 This is a flow chart of the first embodiment of the RCM-based maintenance control method for a thermal power centrifugal fan of the present application;

[0038] Figure 2 This is a structural schematic diagram of a centrifugal fan in the first embodiment of the RCM-based thermal power generation centrifugal fan maintenance control method of this application;

[0039] Figure 3 A flow chart of the second embodiment of the maintenance control method for a centrifugal fan for thermal power generation based on RCM provided in this application;

[0040] Figure 4 This is a schematic diagram of the module structure of a thermal power generation centrifugal fan maintenance control device based on RCM in an embodiment of the present application;

[0041] Figure 5 The schematic diagram of the structure of the RCM-based thermal power generation centrifugal fan maintenance control device is a hardware operating environment involved in the RCM-based thermal power generation centrifugal fan maintenance control method in the embodiment of the present application.

[0042] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0043] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0044] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0045] The main solution of the embodiment of the present application is: obtaining the current bearing temperature, vibration displacement and gas ratio parameters of the centrifugal fan, and constructing the working condition parameters of the centrifugal fan; comparing the working condition parameters with the preset threshold range, and judging the degree of failure of the casing, bearing and impeller components in the centrifugal fan; judging the current corresponding risk level of the centrifugal fan in the risk level preset table according to the failure degree corresponding to each component; when the risk level of the centrifugal fan is the first risk level, driving the centrifugal fan to execute the shutdown strategy and issuing a maintenance alarm.

[0046] Reliability Centered Maintenance (RCM) is a system engineering method used internationally to determine the preventive maintenance needs of equipment and optimize the maintenance system. According to the principle of maintaining the inherent reliability and safety of equipment with the least resource consumption, the inspection, maintenance, and operation strategies to reduce equipment risks are determined and optimized maintenance tasks are formulated to guide daily equipment inspection and maintenance. Due to the fact that many thermal power plants in the existing technology basically manage electrical equipment in a relatively traditional management mode, the enterprise equipment management is imperfect, and the human factor has a greater impact, that is, the traditional maintenance mode of "more inspections, more repairs, more maintenance, the more the better" and "repair after failure" still dominates, resulting in the number of unplanned downtimes. Unplanned equipment downtime has a greater impact on safety, environment, and cost.

[0047] The present application provides a solution, which performs equipment maintenance based on the degree of equipment failure of the centrifugal fan and the level of risk that may be caused, thereby reducing the frequency of downtime for maintenance, avoiding cost losses caused by excessive maintenance, and ensuring long-term stable operation of the equipment.

[0048] It should be noted that the execution subject of this embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or a thermal power generation centrifugal fan maintenance control device based on RCM that can realize the above functions. The following takes the thermal power generation centrifugal fan maintenance control device based on RCM as an example to illustrate this embodiment and the following embodiments.

[0049] Based on this, the embodiment of the present application provides a maintenance control method for a centrifugal fan of a thermal power generation based on RCM, referring to Figure 1 , Figure 1 This is a flow chart of the first embodiment of the RCM-based maintenance control method for thermal power centrifugal fans of this application.

[0050] In this embodiment, the RCM-based maintenance control method for a thermal power generation centrifugal fan includes steps S10 to S40:

[0051] Step S10: obtaining the current bearing temperature, vibration displacement and gas ratio parameters of the centrifugal fan, and constructing the working condition parameters of the centrifugal fan.

[0052] It should be noted that a centrifugal fan can be an electrical device that converts kinetic energy into potential energy through a high-speed rotating impeller, which accelerates the gas and converts kinetic energy into potential energy (pressure) during the flow process, thereby achieving gas transportation and pressure increase. Among them, the structure of the centrifugal fan in the thermal power generation system can refer to Figure 2 As shown, Figure 2 This is a structural schematic diagram of a centrifugal fan in the first embodiment of the RCM-based thermal power generation centrifugal fan maintenance control method of this application.

[0053] The structure of the centrifugal fan mainly includes: 1. air inlet chamber; 2. air inlet; 3. impeller; 4. casing; 5. main shaft; 6. air outlet; 7. outlet diffuser. The impeller 3 is installed in the casing 4. When the impeller rotates, the gas is sucked in axially through the air inlet 2, and then the gas turns about 90 degrees and flows through the flow channel formed by the impeller blades (referred to as the blade channel), and the casing concentrates and guides the gas thrown out by the impeller and discharges it from the fan outlet 6 or the outlet diffuser 7. When the gas passes through the blade channel of the rotating impeller, due to the action of the blades, the gas gains energy, that is, the gas pressure increases and the kinetic energy increases.

[0054] It should be understood that the common faults of centrifugal fans can mainly include: 1. The cooling performance declines due to the blockage of the cooling water structure caused by the long-term operation of the casing. The bearing temperature can be collected by setting a temperature sensor (not shown in the figure) on the bearing to determine whether the casing of the centrifugal fan is faulty. 2. Since the air inlet and the impeller are not on the same axis, long-term use will cause the main shaft bearing gap to be too large or bend deformation. The vibration displacement of the bearing during operation can be collected by setting a piezoelectric bending structure on the bearing. 3. When the fan box in the thermal power generation system transports air in the combustion boiler, some corrosive gases such as carbon dioxide and sulfur dioxide are inevitably mixed in the air, and coal burning in the boiler will also produce such gases. Carbon dioxide and sulfur dioxide react with water to generate acidic substances. These acidic substances adhere to the internal components of the fan and are prone to corrosion of blades, impellers, etc. The air at the fan inlet can be collected and the proportion of gas components can be analyzed to determine whether the impeller wear and corrosion occurs.

[0055] Step S20: comparing the working condition parameters with a preset threshold range to determine the degree of failure of the casing, bearing and impeller components in the centrifugal fan.

[0056] It should be noted that the bearing temperature, vibration displacement and gas proportion parameters in the working condition parameters can be compared with their corresponding preset threshold ranges; when they exceed the lower limit of the preset threshold range and are lower than the upper limit of the preset threshold range, it is judged that the component of the centrifugal fan corresponding to the working condition parameter is in a minor fault; when they exceed the upper limit of the preset threshold range, it is judged that the component of the centrifugal fan corresponding to the working condition parameter is in a serious fault.

[0057] It should be understood that minor faults will not affect the normal operation and stability of the centrifugal fan, and the probability of causing damage to the safety of system operation is very low, so there is no need to replace the parts or carry out special maintenance work to reduce the frequency of unplanned downtime. However, minor faults may cause the centrifugal fan to not function normally, and may even cause safety risks.

[0058] Step S30: According to the fault degree corresponding to each component, the risk level currently corresponding to the centrifugal fan is determined in the risk level preset table.

[0059] It should be noted that the risk level table may be a comprehensive analysis table based on the failure levels of various components in the centrifugal fan, and the overall risk level of the centrifugal fan may be obtained by querying the failure levels of all components.

[0060] It should be understood that the risk level table can be set according to the actual structure and usage scenario of the centrifugal fan during the factory debugging stage. It can be constructed with reference to the maintenance cost of each component (i.e. the cost required to repair the component), the failure risk (i.e. the cost caused when a failure occurs) and the specific conditions in the factory (such as maintenance time arrangement, etc.). No specific restrictions are made in this embodiment.

[0061] Step S40: When the risk level of the centrifugal fan is the first risk level, driving the centrifugal fan to execute a shutdown strategy and issuing a maintenance alarm.

[0062] It should be noted that the risk level preset table can divide the centrifugal fan into multiple different risk levels according to the failure degree of each component and other parameters. The first risk level means that a component has a serious failure that may cause safety risks and the possible operating accidents cannot be avoided. The centrifugal fan is driven to execute the shutdown strategy and issue a maintenance alarm.

[0063] In this embodiment, the working condition parameters of the centrifugal fan are constructed by acquiring the current bearing temperature, vibration displacement and gas proportion parameters of the centrifugal fan; the degree of failure of the casing, bearing and impeller components in the centrifugal fan is judged by comparing the working condition parameters with the preset threshold range; the risk level corresponding to the centrifugal fan is judged in the risk level preset table according to the degree of failure corresponding to each component; when the risk level of the centrifugal fan is the first risk level, the centrifugal fan is driven to execute the shutdown strategy and issue a maintenance alarm. By taking the equipment failure degree of the centrifugal fan and the possible risk level to perform equipment maintenance, the frequency of shutdown maintenance is reduced, the cost loss caused by excessive maintenance is avoided, and the long-term stable operation of the equipment is ensured.

[0064] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can be referred to the above introduction, and will not be repeated in the following. Figure 3 , Figure 3 The flowchart of the second embodiment of the RCM-based maintenance control method for a centrifugal fan for thermal power generation is provided in the present application. Before step S30, the RCM-based maintenance control method for a centrifugal fan for thermal power generation includes:

[0065] Step S301: Obtain the failure risks corresponding to the casing, bearing and impeller components in the centrifugal fan, so as to classify the components into high-risk components, medium-risk components and low-risk components according to the failure risks.

[0066] It should be noted that this embodiment takes the failure risk of each component (i.e., the cost caused by a failure) as an example. During the commissioning phase, the components can be ranked, for example, as high-risk components such as casings, medium-risk components such as bearings, and low-risk components such as impellers. The specific situation can be divided according to the actual conditions of the project site, or ranked according to the comprehensive maintenance cost, etc.

[0067] Step S302: constructing a preset risk level table for the centrifugal fan according to the failure risk of each component and the failure degree.

[0068] In a possible implementation, the first risk level in the risk level preset table is that the degree of failure of any component is a serious failure, the second risk level is that at least one high-risk component is a minor failure, the third risk level is that at least one medium-risk component is a minor failure, and the fourth risk level is that at least one low-risk component is a minor failure. The number of specific risk levels and the status of the components in each risk level can be set according to the specific conditions on site.

[0069] Furthermore, after step S30, the following steps may also be included:

[0070] Step S401: When the risk level of the centrifugal fan is a second risk level, the centrifugal fan is maintained to operate at a low power and a maintenance alarm of the centrifugal fan is issued.

[0071] It should be noted that at the second risk level, a minor failure may occur in a component of the centrifugal fan that may cause a high risk of failure. At this time, it is necessary to maintain the centrifugal fan at low power operation to avoid further escalation of the fault condition. At the same time, a maintenance alarm of the centrifugal fan is issued to notify maintenance personnel to repair the corresponding components.

[0072] It should be understood that in actual use, for each component in the centrifugal fan that is judged to be faulty, the fault indicator light of the corresponding component can be driven to light up to indicate the fault, and the fault degree of the component can also be indicated by indicator lights of different colors.

[0073] Step S402: When the risk level of the centrifugal fan is the third risk level, the operation of the centrifugal fan is maintained, and a maintenance alarm of the centrifugal fan is issued.

[0074] It should be noted that at the third risk level, there may be a minor failure in a component of the centrifugal fan that may cause a medium failure risk. At this time, there is no need to restrict the normal operation of the centrifugal fan. A maintenance alarm for the centrifugal fan is issued to notify maintenance personnel to repair the corresponding components within the specified maintenance period.

[0075] Step S403: When the risk level of the centrifugal fan is the fourth risk level, the operation of the centrifugal fan is maintained, and no maintenance alarm of the centrifugal fan is issued.

[0076] It should be noted that at the fourth risk level, there may be minor failures in components with low failure risks in the centrifugal fan. At this time, there is no need to restrict the normal operation of the centrifugal fan, nor to issue a notice to limit maintenance personnel to perform maintenance within the specified maintenance period. Routine maintenance of the centrifugal fan should be performed according to the normal maintenance plan.

[0077] It should be understood that in actual use, for each component in the centrifugal fan that is judged to be faulty, the fault indicator light of the corresponding component can be driven to light up to indicate the fault, and the fault degree of the component can also be indicated by indicator lights of different colors.

[0078] In this embodiment, by obtaining the corresponding failure risks of the casing, bearing and impeller components in the centrifugal fan, the components are divided into high-risk components, medium-risk components and low-risk components according to the failure risks; a risk level preset table of the centrifugal fan is constructed according to the failure risks of each component and the degree of failure. The centrifugal fan is divided into four risk levels, and different maintenance strategies correspond to different risk levels. The frequency of shutdown maintenance is reduced, the cost loss caused by excessive maintenance is avoided, and the long-term stable operation of the equipment is ensured.

[0079] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the RCM-based thermal power centrifugal fan maintenance control method of the present application. More simple transformations based on this technical concept are all within the scope of protection of the present application.

[0080] This application also provides a maintenance control device for a centrifugal fan of a thermal power generation based on RCM, please refer to Figure 4 The RCM-based thermal power centrifugal fan maintenance control device comprises:

[0081] The parameter acquisition module 10 is used to acquire the current bearing temperature, vibration displacement and gas ratio parameters of the centrifugal fan, and construct the working condition parameters of the centrifugal fan;

[0082] A fault judgment module 20 is used to judge the degree of fault of the casing, bearing and impeller components in the centrifugal fan by comparing the working condition parameters with a preset threshold range;

[0083] A risk determination module 30, configured to determine the risk level currently corresponding to the centrifugal fan in a preset risk level table according to the fault level corresponding to each component;

[0084] The maintenance control module 40 is used to drive the centrifugal fan to execute a shutdown strategy and issue a maintenance alarm when the risk level of the centrifugal fan is a first risk level.

[0085] Optionally, the risk determination module 30 is also used to obtain the failure risks corresponding to the casing, bearing and impeller components in the centrifugal fan, so as to divide the components into high-risk components, medium-risk components and low-risk components according to the failure risks; and construct a preset risk level table for the centrifugal fan according to the failure risks of each component and the degree of failure.

[0086] Optionally, the maintenance control module 40 is further configured to maintain the centrifugal fan operating at low power and issue a maintenance alarm for the centrifugal fan when the risk level of the centrifugal fan is a second risk level.

[0087] Optionally, the maintenance control module 40 is further configured to maintain the operation of the centrifugal fan and issue a maintenance alarm for the centrifugal fan when the risk level of the centrifugal fan is a third risk level.

[0088] Optionally, the maintenance control module 40 is further configured to maintain the operation of the centrifugal fan and not issue a maintenance alarm for the centrifugal fan when the risk level of the centrifugal fan is a fourth risk level.

[0089] Optionally, the fault judgment module 20 is also used to compare the bearing temperature, vibration displacement and gas proportion parameters in the working condition parameters with their corresponding preset threshold ranges; when they exceed the lower limit of the preset threshold range and are lower than the upper limit of the preset threshold range, it is judged that the component of the centrifugal fan corresponding to the working condition parameter is in a minor fault; when they exceed the upper limit of the preset threshold range, it is judged that the component of the centrifugal fan corresponding to the working condition parameter is in a serious fault.

[0090] Optionally, the maintenance control module 40 is further configured to drive and light up a fault indicator light of a corresponding component of each component in the centrifugal fan that is judged to be faulty to indicate the fault.

[0091] The RCM-based maintenance control device for thermal power centrifugal fans provided in the present application adopts the RCM-based maintenance control method for thermal power centrifugal fans in the above-mentioned embodiment, which can solve the technical problem that the centrifugal fans are frequently shut down for maintenance and the operation of the equipment is affected. Compared with the prior art, the beneficial effects of the RCM-based maintenance control device for thermal power centrifugal fans provided in the present application are the same as the beneficial effects of the RCM-based maintenance control method for thermal power centrifugal fans provided in the above-mentioned embodiment, and the other technical features of the RCM-based maintenance control device for thermal power centrifugal fans are the same as the features disclosed in the above-mentioned embodiment method, which will not be described in detail here.

[0092] The present application provides a RCM-based maintenance control device for a centrifugal fan in a thermal power generation plant. The RCM-based maintenance control device for a centrifugal fan in a thermal power generation plant comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the RCM-based maintenance control method for a centrifugal fan in a thermal power generation plant in the above-mentioned embodiment one.

[0093] Reference below Figure 5 , which shows a schematic diagram of the structure of a centrifugal fan maintenance control device based on RCM for thermal power generation suitable for implementing the embodiment of the present application. The centrifugal fan maintenance control device based on RCM for thermal power generation in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 5 The RCM-based thermal power generation centrifugal fan maintenance control device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0094] like Figure 5As shown, the RCM-based thermal power generation centrifugal fan maintenance control device may include a processing device 1001 (such as a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM: Read Only Memory) 1002 or the program loaded from the storage device 1003 to the random access memory (RAM: Random Access Memory) 1004. Various programs and data required for the operation of the RCM-based thermal power generation centrifugal fan maintenance control device are also stored in the RAM 1004. The processing device 1001, the ROM 1002 and the RAM 1004 are connected to each other through a bus 1005. The input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touch screen, a touchpad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; storage devices 1003 including, for example, a magnetic tape, a hard disk, etc.; and communication devices 1009. The communication device 1009 can allow the RCM-based thermal power generation centrifugal fan maintenance control device to communicate wirelessly or wired with other devices to exchange data. Although the RCM-based thermal power generation centrifugal fan maintenance control device with various systems is shown in the figure, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems may be implemented or have instead.

[0095] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0096] The RCM-based maintenance control device for thermal power centrifugal fans provided in the present application adopts the RCM-based maintenance control method for thermal power centrifugal fans in the above-mentioned embodiment, which can solve the technical problem that the operation of the equipment is affected by the large number of unplanned shutdowns for maintenance of centrifugal fans. Compared with the prior art, the beneficial effects of the RCM-based maintenance control device for thermal power centrifugal fans provided in the present application are the same as the beneficial effects of the RCM-based maintenance control method for thermal power centrifugal fans provided in the above-mentioned embodiment, and the other technical features of the RCM-based maintenance control device for thermal power centrifugal fans are the same as the features disclosed in the method of the previous embodiment, which will not be described in detail here.

[0097] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0098] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0099] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, and the computer-readable program instructions are used to execute the RCM-based thermal power centrifugal fan maintenance control method in the above-mentioned embodiment.

[0100] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination of the above.

[0101] The computer-readable storage medium may be included in the RCM-based maintenance control device for a centrifugal fan for thermal power generation; or may exist independently without being assembled into the RCM-based maintenance control device for a centrifugal fan for thermal power generation.

[0102] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0103] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0104] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0105] The readable storage medium provided in the present application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned RCM-based thermal power centrifugal fan maintenance control method, which can solve the technical problem that the centrifugal fan is affected by the large number of unplanned downtime maintenance. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in the present application are the same as the beneficial effects of the RCM-based thermal power centrifugal fan maintenance control method provided in the above-mentioned embodiment, and will not be repeated here.

[0106] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A maintenance control method for a thermal power generation centrifugal fan based on RCM, characterized in that: The RCM-based maintenance control method for a thermal power generation centrifugal fan comprises: Obtain the current bearing temperature, vibration displacement and gas ratio parameters of the centrifugal fan, and construct the working condition parameters of the centrifugal fan; By comparing the working condition parameters with a preset threshold range, the degree of failure of the casing, bearing and impeller components in the centrifugal fan is determined; According to the fault degree corresponding to each component, determine the risk level currently corresponding to the centrifugal fan in the risk level preset table; When the risk level of the centrifugal fan is the first risk level, the centrifugal fan is driven to execute a shutdown strategy and a maintenance alarm is issued at the same time.

2. The RCM-based maintenance control method for thermal power generation centrifugal fans according to claim 1, characterized in that: Before the step of judging the risk level currently corresponding to the centrifugal fan in the risk level preset table according to the fault degree corresponding to each component, the method includes: Obtaining the failure risks corresponding to the casing, bearing and impeller components of the centrifugal fan, so as to classify the components into high-risk components, medium-risk components and low-risk components according to the failure risks; Constructing a preset risk level table for the centrifugal fan according to the failure risk of each component and the failure degree; Among them, the first risk level in the risk level preset table is that the failure degree of any component is a serious failure, the second risk level is that at least one high-risk component is a minor failure, the third risk level is that at least one medium-risk component is a minor failure, and the fourth risk level is that at least one low-risk component is a minor failure.

3. The RCM-based maintenance control method for thermal power generation centrifugal fans according to claim 2, characterized in that: After the step of judging the risk level currently corresponding to the centrifugal fan in the risk level preset table according to the fault degree corresponding to each component, the method further includes: When the risk level of the centrifugal fan is the second risk level, the centrifugal fan is maintained to operate at a low power, and a maintenance alarm of the centrifugal fan is issued.

4. The RCM-based maintenance control method for thermal power generation centrifugal fans according to claim 3, characterized in that: After the step of judging the risk level currently corresponding to the centrifugal fan in the risk level preset table according to the fault degree corresponding to each component, the method further includes: When the risk level of the centrifugal fan is the third risk level, the operation of the centrifugal fan is maintained and a maintenance alarm of the centrifugal fan is issued.

5. The RCM-based maintenance control method for thermal power generation centrifugal fans according to claim 4, characterized in that: After the step of judging the risk level currently corresponding to the centrifugal fan in the risk level preset table according to the fault degree corresponding to each component, the method further includes: When the risk level of the centrifugal fan is the fourth risk level, the operation of the centrifugal fan is maintained, and no maintenance alarm of the centrifugal fan is issued.

6. The RCM-based maintenance control method for thermal power generation centrifugal fans according to claim 1, characterized in that: The step of comparing the working condition parameter with a preset threshold range to determine the degree of failure of the casing, bearing and impeller components in the centrifugal fan comprises: Comparing the bearing temperature, vibration displacement and gas proportion parameters in the working condition parameters with their corresponding preset threshold ranges; When the value exceeds the lower limit of the preset threshold range and is lower than the upper limit of the preset threshold range, it is judged that the component of the centrifugal fan corresponding to the working condition parameter is in a minor fault; When the upper limit of the preset threshold range is exceeded, it is determined that the component of the centrifugal fan corresponding to the working condition parameter is in serious failure.

7. The RCM-based maintenance control method for thermal power generation centrifugal fans according to claim 1, characterized in that: After comparing the working condition parameter with the preset threshold range to determine the degree of failure of the casing, bearing and impeller components in the centrifugal fan, the method further includes: For each component of the centrifugal fan judged to be faulty, a fault indicator light of the corresponding component is driven to light up to indicate the fault.

8. A maintenance control device for a thermal power generation centrifugal fan based on RCM, characterized in that: The device comprises: A parameter acquisition module is used to acquire the current bearing temperature, vibration displacement and gas ratio parameters of the centrifugal fan, and construct the working condition parameters of the centrifugal fan; A fault judgment module is used to judge the degree of fault of the casing, bearing and impeller components in the centrifugal fan by comparing the working condition parameters with a preset threshold range; A risk determination module, configured to determine the risk level currently corresponding to the centrifugal fan in a preset risk level table according to the fault level corresponding to each component; A maintenance control module is used to drive the centrifugal fan to execute a shutdown strategy and issue a maintenance alarm when the risk level of the centrifugal fan is a first risk level.

9. A maintenance control device for a thermal power generation centrifugal fan based on RCM, characterized in that: The device comprises: a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the RCM-based thermal power centrifugal fan maintenance control method as described in any one of claims 1 to 7.

10. A storage medium, characterized in that: The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the RCM-based thermal power centrifugal fan maintenance control method as described in any one of claims 1 to 7 are implemented.

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