Nuclear power reheater starting management method and device and electronic equipment
By realizing automatic status monitoring and abnormal judgment in the nuclear power reheater control system, the problem of manual monitoring dependence is solved, the speed and accuracy of abnormal judgment are improved, and the safety of nuclear power plants is enhanced.
Patent Information
- Application Number
- CN202411816786.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-05-02
AI Technical Summary
During the process of starting the nuclear power reheater, the prior art relies on manual monitoring, resulting in the speed and accuracy of abnormal judgments being limited by the operator's personal capabilities, increasing the threat to nuclear safety.
By realizing automatic status monitoring in the nuclear power reheater control system, the actual status information of the nuclear power reheater is obtained, and compared with the expected status information, determining whether there is a state abnormality, and generating alarm information for timely processing.
It effectively reduces the artificial dependence during the start-up of nuclear power reheater, improves the speed and accuracy of abnormal judgments, and enhances the overall safety of nuclear power plants.
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Figure CN119920062A_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of nuclear power equipment management, and in particular to a nuclear power reheater startup management method, device and electronic equipment. Background Art
[0002] The nuclear power reheater is an important part of the steam cycle system of a nuclear power plant. It is mainly used to reheat the steam discharged from the high-pressure cylinder after work is done, and send it to the low-pressure cylinder to continue to expand and do work after raising its temperature, thereby improving the thermal efficiency and the overall output power of the nuclear power plant. Since nuclear power plants have high requirements for safety, the nuclear power reheater is usually monitored during the startup process to promptly handle abnormalities during the startup process and avoid threats to nuclear safety.
[0003] At present, when starting a nuclear power reheater, the GEM80 automatic control system is usually used to control the startup process of the nuclear power reheater. The operator needs to call up the various information indicator panels of the nuclear power reheater for monitoring. It is highly dependent on manual labor, and the speed and accuracy of abnormal judgment are limited by the personal ability of the operator. Summary of the invention
[0004] The embodiments of the present application provide a nuclear power reheater startup management method, device and electronic equipment, which can reduce manual dependence during the nuclear power reheater startup process.
[0005] In a first aspect, an embodiment of the present application provides a nuclear power reheater startup management method, which is applied to a nuclear power reheater control system, including:
[0006] Acquiring actual state information of a nuclear power reheater during execution of a startup sequence, the startup sequence comprising a startup step for starting the nuclear power reheater, the actual state information reflecting current state information of the nuclear power reheater;
[0007] Determining whether the nuclear power reheater has an abnormal state according to the actual state information and the corresponding first state information, wherein the first state information reflects the state information that the nuclear power reheater should currently meet;
[0008] When it is determined that the state is abnormal, a first alarm message is generated, where the alarm message is used to indicate that the nuclear power reheater has an abnormal state.
[0009] In a second aspect, an embodiment of the present application provides a nuclear power reheater startup management device, including:
[0010] A state acquisition module, used to acquire actual state information of a nuclear power reheater during execution of a startup sequence, wherein the startup sequence includes a startup step for starting the nuclear power reheater, and the actual state information reflects current state information of the nuclear power reheater;
[0011] A judgment module, used for judging whether the nuclear power reheater has a state abnormality according to the actual state information and corresponding first state information, wherein the first state information reflects the state information that the nuclear power reheater should currently meet;
[0012] The alarm module is used to generate a first alarm message when it is determined that the state is abnormal, and the alarm message is used to indicate that the nuclear power reheater has an abnormal state.
[0013] In a third aspect, an embodiment of the present application provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the nuclear power reheater startup management method described in the first aspect when executing the computer program.
[0014] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the nuclear power reheater startup management method described in the first aspect above are implemented.
[0015] In a fifth aspect, an embodiment of the present application provides a computer program product, which, when executed on an electronic device, enables the electronic device to execute the nuclear power reheater startup management method described in the first aspect above.
[0016] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:
[0017] In an embodiment of the present application, during the process of starting the nuclear power reheater through a startup sequence, the nuclear power reheater control system will obtain actual status information of the nuclear power reheater. Since the actual status information can reflect the current status information of the nuclear power reheater, and the first status information can reflect the status information that the nuclear power reheater should currently meet, therefore, based on the actual status information and the first status information, it is possible to better judge whether the current status of the nuclear power reheater meets the requirements, that is, to judge whether the actual status during the startup of the nuclear power reheater meets the required status, so that when it is judged that there is a status abnormality, the first alarm information can be generated in time, thereby better realizing automatic monitoring of status abnormalities during the startup process, effectively reducing manual dependence, and without being limited by the personal ability of the operator, which is conducive to improving the reliability of startup monitoring of the nuclear power reheater. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art.
[0019] Figure 1It is a flow chart of a nuclear power reheater startup management method provided in one embodiment of the present application;
[0020] Figure 2 is a schematic diagram of an interactive interface of a nuclear power reheater control system provided in an embodiment of the present application;
[0021] Figure 3 It is a structural schematic diagram of a nuclear power reheater startup management device provided in an embodiment of the present application;
[0022] Figure 4 It is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION
[0023] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.
[0024] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.
[0025] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.
[0026] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.
[0027] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways.
[0028] Embodiment 1:
[0029] Figure 1 A schematic flow chart of a nuclear power reheater startup management method provided in an embodiment of the present application is shown, and is described in detail as follows:
[0030] Step S101, in the process of executing a startup sequence, obtaining actual status information of a nuclear power reheater, wherein the startup sequence is executed to start the nuclear power reheater, and the actual status information reflects the current status information of the nuclear power reheater.
[0031] The above-mentioned nuclear power reheater includes but is not limited to a surface reheater and a steam-water separation reheater. In some embodiments, the above-mentioned nuclear power reheater is a steam-water separation reheater.
[0032] The above startup sequence is a sequence of startup steps for starting the nuclear power reheater set according to the production process and safety requirements of the nuclear power reheater, so as to ensure that the nuclear power reheater can be put into operation safely and orderly.
[0033] Optionally, the status information of the nuclear power reheater includes, but is not limited to, switch information, operating parameters, and commissioning status of components and related equipment. The related equipment of the nuclear power reheater may include independent devices / equipment that constitute the steam cycle system of the nuclear power plant and work in conjunction with the nuclear power reheater, such as feed water pumps, steam generators, steam turbines, condensers, and other equipment. The components include various components of the nuclear power reheater itself, such as cyclone separators, heat exchange tube bundles, and regulating valves in the steam-water separation reheater.
[0034] In some embodiments, actual state information corresponding to different moments may be obtained during the execution of the startup sequence. It is understandable that, each time actual state information corresponding to a moment is obtained, a state abnormality judgment may be made based on the actual state information at that moment, and a judgment result with high real-time performance may be obtained, so as to further improve the safety of the nuclear power reheater through multiple real-time judgments.
[0035] As an example, the actual status information of the nuclear power reheater may be acquired once every first preset time period (eg, 5 seconds).
[0036] As another example, actual status information corresponding to multiple moments can be randomly obtained. For example, a random number generator can be used to randomly generate multiple random numbers whose values are less than a threshold (such as 10), and then multiple interval durations can be determined based on the generated random numbers. Finally, the actual status information corresponding to different moments is obtained based on the multiple interval durations.
[0037] In an embodiment of the present application, during the execution of the startup sequence, that is, during the process of starting the nuclear power reheater, the status information of the nuclear power reheater is automatically obtained so that it can be subsequently determined whether there is an abnormality based on the status information of the nuclear power reheater during the startup process.
[0038] Step S102, judging whether the nuclear power reheater has an abnormal state according to the actual state information and the corresponding first state information, wherein the first state information reflects the state information that the nuclear power reheater should currently meet.
[0039] The first state information is determined based on the safety requirements of the nuclear power reheater and other information to reflect the state information that the nuclear power reheater should currently meet, that is, the first state information reflects the state information that the nuclear power reheater should meet when the actual state information is obtained. Optionally, in order to ensure the accuracy of the judgment result, before making an abnormal judgment on the actual state information, the first state information can be determined based on the acquisition time of the actual state information.
[0040] As an example, the startup step being executed when the actual status information is acquired can be determined based on the acquisition time of the actual status information, and then the first status information of the actual status information can be determined based on the startup step and information such as the process of the nuclear power reheater.
[0041] As another example, to further improve the accuracy of the judgment result, the startup progress when acquiring the actual status information can be determined based on the acquisition time of the actual status information and the expected execution time of the startup sequence, and the first status information corresponding to the actual status information can be determined based on more accurate startup progress and process information.
[0042] Specifically, when judging whether the nuclear power reheater has an abnormal state according to the actual state information and the corresponding first state information, it is judged whether the actual state information is consistent with the corresponding first state information.
[0043] If the actual state information is consistent with the corresponding first state information, it can be considered that there is no abnormality in the actual state information, that is, there is no abnormal state of the nuclear power reheater.
[0044] If the actual state information does not conform to the corresponding first state information, it can be considered that the actual state information is abnormal, that is, the nuclear power reheater is abnormal.
[0045] For example, assuming that during the execution of the startup step of preheating the new steam tube sheet, actual status information is obtained: the average temperature of the new steam tube sheet in the first 10 seconds is 128°C; assuming that based on the current startup step: the first status information determined by preheating the new steam tube sheet is: the average temperature of the new reheater tube sheet in the first 10 seconds is greater than or equal to 120°C, it can be determined that the actual status information corresponding to the startup step is consistent with its corresponding first status information, and there is currently no abnormal status of the nuclear power reheater.
[0046] In the embodiment of the present application, actual status information reflecting the current status information of the nuclear power reheater and first status information reflecting the status information that the nuclear power reheater should currently satisfy are obtained, and whether the nuclear power reheater has a status abnormality is judged based on whether the actual status information conforms to the first status information. Manual monitoring and judgment are not required, which can reduce manual dependence during the startup of the nuclear power reheater and avoid misjudgment caused by factors such as manual experience and subjective judgment, which is conducive to improving the accuracy of abnormal judgment of the nuclear power reheater.
[0047] Step S103, when it is determined that the above-mentioned state is abnormal, a first alarm information is generated, and the above-mentioned alarm information is used to indicate that the above-mentioned nuclear power reheater has an abnormal state.
[0048] Optionally, in order to enable the user to deal with the abnormality of the nuclear power reheater in time, after the first alarm information is generated, the first alarm information can be broadcasted through voice broadcasting such as broadcasting, and the first alarm information can also be sent to the target terminal (the terminal corresponding to the user, such as a smart phone, etc.), so that the user can be aware of the abnormality in time.
[0049] In some embodiments, the nuclear power reheater control system further includes an interactive interface, and during the execution of the startup sequence, the interactive interface can display the status information of each target component of the nuclear power reheater, and the target component includes the components in the nuclear power reheater related to the startup sequence. Figure 2 As shown, the interactive interface can display parameter information such as the temperature of each target component, and can also indicate the switch status of each target component by different colors.
[0050] Among them, after the first alarm information is generated, the first alarm information can be prominently displayed in the interactive interface through methods such as pop-up windows, so that the user can promptly learn of the abnormal status of the nuclear power reheater through the first alarm information in the interactive interface.
[0051] In the embodiment of the present application, the nuclear power reheater control system will obtain the actual state information of the nuclear power reheater during the process of starting the nuclear power reheater. Since the actual state information obtained can reflect the current state information of the nuclear power reheater, and the first state information can reflect the state information that the nuclear power reheater should currently meet, therefore, according to whether the actual state information conforms to the first state information, it can be better judged whether the current state information of the nuclear power reheater is abnormal, that is, it can better realize the automatic monitoring of the abnormal state during the startup process, effectively reduce manual dependence, and do not need to be limited by the personal ability of the operator, which is conducive to improving the reliability of the startup monitoring of the nuclear power reheater. At the same time, when it is judged that the nuclear power reheater has an abnormal state, the first alarm information can be generated in time, so that the user can be informed of the abnormal state of the nuclear power reheater in time, which is conducive to ensuring the safety of nuclear power.
[0052] In some embodiments, the startup sequence includes a plurality of the startup steps, and the step S101 includes:
[0053] In the process of executing the above startup sequence, each time one of the above startup steps is executed, the above actual state information corresponding to the current startup step is obtained.
[0054] Correspondingly, the above step S102 includes:
[0055] It is determined whether the nuclear power reheater has the above-mentioned state abnormality based on the above-mentioned actual state information corresponding to the above-mentioned current startup step and the above-mentioned first state information.
[0056] It can be understood that the first state information corresponding to different startup steps is usually different. The first state information corresponding to each startup step can be determined based on the startup step, or based on the startup step and all previous startup steps or related startup steps, the process of the nuclear power reheater and other information. It can be set specifically according to the actual application scenario.
[0057] For example, assuming that the startup steps include: step 1 (opening the steam trap), step 2 (preheating the new steam tube sheet and the exhaust tube sheet) and step 3 (increasing the speed of the steam turbine), since step 1 is the first startup step executed, its first state information can be determined based on the startup conditions for starting the nuclear power reheater. For example, its first state information can be: steam turbine reset.
[0058] The first status information corresponding to step 2 may be: the steam trap switch is in the open state; the first status information corresponding to step 3 may be: the steam trap switch is in the open state, preheating has stopped and the new steam tube sheet temperature reaches 120°C, the exhaust tube sheet temperature reaches 90°C, and the steam turbine microcomputer speed governor has been put into operation.
[0059] Specifically, since the startup sequence usually includes multiple startup steps in order, the execution of a new startup step may cause the state of the nuclear power reheater to change, making it fail to meet the expected requirements, that is, there is an abnormal state. Therefore, in the process of executing the startup sequence, each time a startup step is executed, the actual state information of the nuclear power reheater during the execution of the startup step can be obtained to obtain the actual state information corresponding to the current startup step.
[0060] When determining whether the execution of the current startup step causes the nuclear power reheater to be in an abnormal state, the first state information corresponding to the current startup step can be obtained. At this time, the first state information obtained can be state information that reflects the nuclear power reheater should meet after the execution of the previous startup step, that is, determining whether the execution of the current startup step affects the state information that the nuclear power reheater has previously met, causing the state of the nuclear power reheater to be abnormal.
[0061] In the embodiment of the present application, each time a startup step is executed, the actual status information when the startup step is executed and its corresponding first status information are obtained to judge the status abnormality. When it is determined that there is a status abnormality, the cause of the status abnormality can be better determined according to the corresponding startup step, which is convenient for maintenance personnel to deal with the status abnormality. In addition, a status abnormality is judged each time a startup step is executed, which can timely discover the status abnormality of the nuclear power reheater, avoid the situation where subsequent startup steps are still executed when the status abnormality occurs, reduce the impact of the status abnormality of the nuclear power reheater, and is conducive to improving the safety of the nuclear power plant.
[0062] In some embodiments, after judging whether the nuclear power reheater has the above-mentioned state abnormality according to the above-mentioned actual state information corresponding to the current above-mentioned startup step and the above-mentioned first state information, it also includes:
[0063] When it is determined that the above-mentioned state abnormality does not exist, it is determined whether the above-mentioned nuclear power reheater satisfies the second state information, and the above-mentioned second state information reflects the state information that the above-mentioned nuclear power reheater should satisfy before executing the next above-mentioned startup step.
[0064] When it is determined that the nuclear power reheater satisfies the second state information, the next startup step is executed.
[0065] The second state information may be determined according to the corresponding start step, and different start steps usually correspond to different second state information. For example, the second state information may be the completion condition corresponding to the start step.
[0066] For example, assuming that the startup steps include: step 1 (opening the steam trap), step 2 (preheating the new steam tube sheet and the exhaust tube sheet), and step 3 (increasing the speed of the steam turbine), at this time, the second state information corresponding to step 1 may be: the steam trap switch is in the open state;
[0067] The second state information corresponding to step 2 may be: the new steam tube sheet temperature reaches 120°C, the exhaust tube sheet temperature reaches 90°C, and the turbine microcomputer governor has been put into operation, and the first state information corresponding to step 2 may be: the steam trap switch is in the open state;
[0068] The second status information corresponding to step 3 may be: the turbine speed reaches the rated speed (such as 3000 rpm), and the first status information corresponding to step 3 may be: the steam trap switch is in the open state, and the new steam tube sheet temperature reaches 120°C, the exhaust tube sheet temperature reaches 90°C, and the turbine microcomputer speed governor has been put into operation.
[0069] In order to improve the startup efficiency of the nuclear power reheater while ensuring the safe startup of the nuclear power reheater, when it is determined that the nuclear power reheater currently has no abnormal state, it can be determined whether the nuclear power reheater currently meets the second state information, that is, whether the next startup step can be executed at present.
[0070] In other embodiments, the second state information may also be determined according to the corresponding start-up step and the previous start-up step, which is not specifically limited in the present embodiment. For example, the second state information may be the completion condition corresponding to the start-up step and each of the previous start-up steps.
[0071] Specifically, if it is determined that the nuclear power reheater currently meets the second state information, the next startup step can be executed.
[0072] If it is determined that the nuclear power reheater does not currently meet the second state information, subsequent processing can be performed according to the actual application scenario requirements.
[0073] As an example, it is possible to determine again whether the nuclear power reheater satisfies the second state information after a second preset time (such as 10 seconds). Optionally, after the second preset time, it is possible to first determine whether the nuclear power reheater satisfies the first state information, and when it is determined that the nuclear power reheater currently satisfies the first state information, it is then determined whether the nuclear power reheater satisfies the second state information, that is, fully considering the abnormal state of the nuclear power reheater in the time period corresponding to the second preset time, and after ensuring that the nuclear power reheater does not have an abnormal state, it is determined whether the next startup step can be executed to further ensure nuclear power safety.
[0074] As another example, after it is determined for the first time that the nuclear power reheater does not meet the second state information, the nuclear power reheater can be continuously monitored, so that when it is detected that the nuclear power reheater meets the second state information, the next startup step can be executed in time. Among them, when it is detected that the nuclear power reheater has met the second state information, the first state information can be judged again, that is, whether there is an abnormal state at present, so that during the continuous monitoring process, it is not necessary to judge the first state information every time the second state information is judged, and at the same time, it is ensured that the next startup step is executed when there is no abnormal state of the nuclear power reheater, so as to fully ensure the safety of nuclear power.
[0075] In an embodiment of the present application, after determining that there is no abnormal state during the execution of the current execution step, it is promptly determined whether the nuclear power reheater meets the conditions for executing the next startup step, so that when the conditions are met, the next startup step is executed in a timely manner, and the startup efficiency of the nuclear power reheater is improved as much as possible while ensuring the safety of the nuclear power reheater.
[0076] In some embodiments, after determining whether the nuclear power reheater meets the second state information, the method further includes:
[0077] If at the end of the target time period, the nuclear power reheater still does not meet the second status information, a second alarm message is generated, and the execution of the current startup step is suspended or terminated. The target time period is determined based on the execution time of the current startup step and the preset execution time. The second alarm message is used to indicate that the nuclear power reheater has an execution abnormality in the current startup step.
[0078] The above-mentioned preset execution time refers to the maximum execution time of the pre-set startup step. It should be noted that due to certain differences in the complexity of different startup steps, when setting the preset execution time, you can set the corresponding preset execution time for each startup step according to the complexity of the startup step.
[0079] Specifically, in order to reduce the impact of hardware failure and other factors on the execution timeout of the startup step, the target time period corresponding to the current startup step is determined according to the execution time of the current startup step and the preset execution duration.
[0080] At the end of the target time period, that is, when the end time of the target time period is reached, if the nuclear power reheater still does not meet the second status information, it can be considered that the current startup step has timed out and there is an execution abnormality. At this time, a second alarm message can be generated according to the current execution step, and the second alarm message can be displayed on the interactive interface, or the second alarm message can be sent to the target terminal, etc., to promptly inform the user of the execution abnormality of the nuclear power reheater.
[0081] At the same time, in order to reduce the risk of abnormal execution of the startup steps, the current startup steps are suspended or terminated first to reduce the probability of damage to the nuclear power reheater and ensure nuclear power safety. Among them, the current startup steps can be suspended or terminated according to the actual application scenario to maximize the actual application effect.
[0082] For example, when the impact of the current startup step is greater than the impact threshold, you can choose to terminate the execution of the current startup step. After handling the execution exception, the maintenance personnel need to re-execute the startup step or re-execute the startup sequence; when the impact of the current startup step is less than or equal to the impact threshold, you can choose to suspend the execution of the current startup step. After handling the execution exception, the maintenance personnel can continue to execute based on the previous execution progress of the startup step. The impact of the startup step can be determined based on the number and importance of the components it affects.
[0083] For example, assuming that the time to start executing step 3 is 9:30:00, and the preset execution time corresponding to step 3 is 60 seconds, then the target time period corresponding to step 3 is: 9:30:00-9:31:00.
[0084] Assume that the actual status information of the nuclear power reheater is obtained at 9:30:10, and it is determined that the nuclear power reheater has no abnormal status based on the actual status information. At this time, it can be determined whether the nuclear power reheater meets the second status information based on the actual status information.
[0085] Assuming that it is determined at 9:30:10 that the nuclear power reheater does not satisfy the second state information, the actual state information of the nuclear power reheater may be acquired every 5 seconds to determine whether the nuclear power reheater satisfies the second state information.
[0086] If during the period of 9:30:10-9:31:00, if it is determined according to the acquired actual state information that the nuclear power reheater satisfies the second state information, then when it is determined that the nuclear power reheater satisfies the second state information, it can be determined again according to the latest actual state information whether the nuclear power reheater has a state abnormality, and if there is no state abnormality, the next startup step (step 4) is executed. If it is determined that there is a state abnormality, the first alarm information can be generated, and step 4 is not executed temporarily.
[0087] If during the period of 9:30:10-9:31:00, the nuclear power reheater still does not meet the second status information, that is, the latest actual status information obtained at 9:31:00 still does not meet the second status information, it can be considered that there is an execution abnormality in step 3 of the nuclear power reheater. At this time, a second alarm information can be generated according to step 3 and sent to the target terminal, and the execution of step 3 is suspended at the same time.
[0088] In the embodiment of the present application, a target time period is set as the execution time period of the startup step. If the nuclear power reheater does not meet the second state information at the end of the target time period, it is considered that the nuclear power reheater has timed out and there is an execution abnormality, and the execution of the startup step is suspended or terminated to reduce the risk caused by the execution abnormality of the startup step. At the same time, the corresponding second alarm information is generated according to the startup step so that the user can be informed of the abnormal situation of the nuclear power reheater in time.
[0089] In some embodiments, the above-mentioned nuclear power reheater is a steam-water separation reheater, which is a special heat exchange device that mainly realizes two functions: one is to separate water from wet steam, and the other is to reheat steam that has done work. Since the steam-water separation reheater needs to realize steam-water separation and efficient heat exchange at the same time, it is necessary to accurately control the temperature rise rate and pressure balance of steam during its startup process to determine the effective separation of water, and each valve of the steam-water separation reheater directly affects the steam flow and pressure distribution, etc. Therefore, in the embodiment of the present application, the state information of the steam-water separation reheater at least includes valve opening information and temperature information, that is, the above-mentioned actual state information and the above-mentioned first state information both include valve opening information and temperature information, so that the state information of the nuclear power reheater can better reflect the relationship between indicators such as steam flow, temperature and pressure during the startup process, so as to better judge whether the nuclear power reheater has abnormal state. In other embodiments, the state information may also include information related to the steam-water separation function and reheating function of the steam-water separation reheater, such as steam flow, pressure and separator guide vane angle.
[0090] Correspondingly, the above step S102 includes:
[0091] If the valve opening information in the actual state information does not match the valve opening information in the first state information,
[0092] And / or, when the temperature information in the actual state information does not conform to the temperature information in the first state information, it is determined that the nuclear power reheater has the above-mentioned state abnormality.
[0093] The valve opening information refers to the degree of opening of the valve, which is usually expressed as a percentage and can reflect the size of the valve flow channel. The valve opening information can be directly related to the flow rate of the fluid (such as water, steam, gas, etc.) flowing through the valve.
[0094] In order to fully ensure the safety of the nuclear power reheater during startup, when judging the abnormal state of the nuclear power reheater, if any one or more information in the actual state information does not match the corresponding information in the first state information, it can be considered that the nuclear power reheater has an abnormal state.
[0095] That is, when the valve opening information in the actual state information does not match the valve opening information in the first state information, or the temperature information in the actual state information does not match the temperature information in the first state information, or both the valve opening information and the temperature information in the actual state information do not match the valve opening information and the temperature information in the first state information, it can be considered that the nuclear power reheater is in an abnormal state.
[0096] If each piece of information in the actual state information is consistent with the corresponding information in the first state information, then it can be considered that there is no abnormal state of the nuclear power reheater.
[0097] In the embodiment of the present application, when any information in the actual status information of the nuclear power reheater does not match the corresponding information in the first status information, it is considered that the nuclear power reheater is in an abnormal state, so as to fully detect the abnormal conditions that may exist during the startup of the nuclear power reheater through more stringent judgment.
[0098] In some embodiments, the generating of the first warning information includes:
[0099] The abnormal point is determined according to the abnormal state information and the operation log of the nuclear power reheater, wherein the abnormal state information is determined according to the difference between the actual state information and the first state information.
[0100] The first warning information is generated according to the abnormal point.
[0101] In order to enable maintenance personnel to quickly and accurately handle the abnormal state of the nuclear power reheater, when generating the first alarm information, the abnormal state information can be first determined based on the difference between the actual state information and the first state information. Since the abnormal state information can reflect the abnormal performance of the nuclear power reheater, and the operation log of the nuclear power reheater can reflect the error code and warning information related to the abnormal performance, therefore, according to the abnormal state information and the operation log, the abnormality can be better located to find the abnormal point of the nuclear power reheater, and then, the first alarm information is generated according to the abnormal point found, so that the maintenance personnel can quickly and accurately maintain the nuclear power reheater according to the first alarm information, effectively solve the abnormality of the nuclear power reheater, and help ensure the safety of nuclear power.
[0102] In an embodiment of the present application, the abnormal point is located based on the abnormal status information reflecting the abnormal performance of the nuclear power reheater and the operation log, and a first alarm information is generated based on the abnormal point, so that maintenance personnel can quickly and clearly understand the abnormality of the nuclear power reheater based on the first alarm information, which facilitates their maintenance of the nuclear power reheater and can better ensure nuclear power safety.
[0103] In some embodiments, the nuclear power reheater includes a steam-water separation reheater, and before obtaining the actual state information of the nuclear power reheater during the execution of the startup sequence, the process further includes:
[0104] When a start-up instruction is detected and the steam-water separator reheater meets the start-up conditions, the start-up sequence is executed. The start-up instruction is used to instruct the start-up of the steam-water separator reheater. The start-up conditions include steam turbine reset and the water level of the steam-water separator reheater is less than or equal to the water level threshold.
[0105] Optionally, the above-mentioned start instruction can be input by the user through the target terminal or the interactive interface of the nuclear power reheater control system, or can be automatically triggered by a preset event (such as a timed start, etc.) or other factors. The embodiment of the present application does not impose specific restrictions on this.
[0106] In the embodiment of the present application, since the steam turbine reset can ensure that all safety protection devices of the steam-water separation reheater are in normal state, and when the water level of the steam-water separation reheater is too high, the incompletely separated water will enter the subsequent steam pipe and steam turbine together with the steam, affecting the thermal efficiency of the steam turbine and there is a risk of damaging the steam turbine components, and the water hammer phenomenon caused by high water level startup may cause equipment damage or even safety accidents. Therefore, in the embodiment of the present application, the startup conditions of the nuclear power reheater include steam turbine reset and the water level of the steam-water separation reheater is less than or equal to the water level threshold, so as to reduce the impact of the initial state of the nuclear power reheater on the safety and efficiency of the startup process, and ensure nuclear power safety.
[0107] In other embodiments, the start-up conditions of the nuclear power reheater may also include conditions related to indicators such as pressure and temperature, such as the pressure difference between the inlet and outlet of the steam-water separation reheater is less than or equal to the pressure difference threshold, and the feed water quality of the nuclear power reheater meets the requirements to reduce the impurity content and prevent the steam-water separation effect from being reduced or scaling and corrosion inside the equipment.
[0108] Since abnormal startup of a nuclear power reheater may have a serious impact on the safety of the nuclear power plant, in order to fully ensure the safety of the nuclear power plant, the startup sequence of the nuclear power reheater is executed when a startup command is detected.
[0109] Among them, in order to further improve the safety of nuclear power plants, before executing the startup sequence, it is first determined whether the nuclear power reheater meets the startup conditions. If the nuclear power reheater meets the startup conditions, the startup sequence is executed.
[0110] If the nuclear power reheater does not meet the startup conditions, a corresponding alarm message (assuming it is the third alarm message) may be generated, and the third alarm message indicates that the startup conditions are not met. As an example, the third alarm message may include the specific conditions that the nuclear power reheater does not meet, for example, the steam turbine of the nuclear power reheater has been reset, but the water level is greater than the water level threshold. At this time, the third alarm message may be: the water level is abnormal, the startup conditions are not met, and it cannot be started.
[0111] As another example, the start-up condition may be determined again after waiting for a preset period of time (eg, 10 seconds). If the condition is still not satisfied, a third alarm message is generated and sent to the target terminal.
[0112] In an embodiment of the present application, when it is necessary to start a nuclear power reheater, it is first determined based on the set start-up conditions whether the nuclear power reheater currently meets the start-up conditions. When it is determined that the nuclear power reheater has met the start-up conditions, the start-up sequence is executed to start the nuclear power reheater, so as to reduce the influencing factors during the start-up of the nuclear power reheater and reduce the probability of abnormalities during the start-up process, which is beneficial to improving the probability of successful startup and ensuring nuclear power safety.
[0113] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
[0114] Embodiment 2:
[0115] Corresponding to the nuclear power reheater startup management method described in the above embodiment, Figure 3 A structural block diagram of a nuclear power reheater startup management device provided in an embodiment of the present application is shown. For ease of explanation, only the parts related to the embodiment of the present application are shown.
[0116] Reference Figure 3 The device includes: a state acquisition module 31, a judgment module 32 and an alarm module 33.
[0117] in,
[0118] The state acquisition module 31 is used to acquire the actual state information of the nuclear power reheater during the execution of the startup sequence. The startup sequence includes a startup step for starting the nuclear power reheater. The actual state information reflects the current state information of the nuclear power reheater.
[0119] The judgment module 32 is used to judge whether the nuclear power reheater has an abnormal state according to the actual state information and the corresponding first state information, and the first state information reflects the state information that the nuclear power reheater should currently meet.
[0120] The alarm module 33 is used to generate a first alarm message when it is determined that the above-mentioned state is abnormal, and the above-mentioned alarm message is used to indicate that the above-mentioned nuclear power reheater has an abnormal state.
[0121] In the embodiment of the present application, the nuclear power reheater control system will obtain the actual state information of the nuclear power reheater during the process of starting the nuclear power reheater. Since the actual state information obtained can reflect the current state information of the nuclear power reheater, and the first state information can reflect the state information that the nuclear power reheater should currently meet, therefore, according to whether the actual state information conforms to the first state information, it can be better judged whether the current state information of the nuclear power reheater is abnormal, that is, it can better realize the automatic monitoring of the abnormal state during the startup process, effectively reduce manual dependence, and do not need to be limited by the personal ability of the operator, which is conducive to improving the reliability of the startup monitoring of the nuclear power reheater. At the same time, when it is judged that the nuclear power reheater has an abnormal state, the first alarm information can be generated in time, so that the user can be informed of the abnormal state of the nuclear power reheater in time, which is conducive to ensuring the safety of nuclear power.
[0122] In some embodiments, the startup sequence includes a plurality of the startup steps, and the state acquisition module 31 includes:
[0123] The state acquisition unit is used to acquire the actual state information corresponding to the current startup step each time the startup step is executed during the execution of the startup sequence.
[0124] Correspondingly, the above-mentioned determination module 32 is specifically used for:
[0125] It is determined whether the nuclear power reheater has the above-mentioned state abnormality based on the above-mentioned actual state information corresponding to the above-mentioned current startup step and the above-mentioned first state information.
[0126] In some embodiments, the above-mentioned nuclear power reheater startup management device further includes:
[0127] The second state information judgment module is used to judge whether the above-mentioned nuclear power reheater meets the second state information when it is determined that there is no above-mentioned state abnormality. The above-mentioned second state information reflects the state information that the above-mentioned nuclear power reheater should meet before executing the next above-mentioned startup step.
[0128] The step execution module is used to execute the next startup step when it is determined that the nuclear power reheater meets the second state information.
[0129] In some embodiments, the above-mentioned nuclear power reheater startup management device further includes:
[0130] An execution abnormality judgment module is used to generate a second alarm message and suspend or terminate the execution of the current startup step if the nuclear power reheater still does not meet the second status information at the end of the target time period, wherein the target time period is determined based on the execution time of the current startup step and the preset execution time, and the second alarm message is used to indicate that the nuclear power reheater has an execution abnormality in the current startup step.
[0131] In some embodiments, the actual state information and the first state information both include valve opening information and temperature information, and the judgment module 32 includes:
[0132] The judgment unit is used for, when the valve opening information in the actual state information does not match the valve opening information in the first state information,
[0133] And / or, when the temperature information in the above-mentioned actual state information does not conform to the temperature information in the above-mentioned first state information, it is determined that the above-mentioned nuclear power reheater has the above-mentioned state abnormality.
[0134] In some embodiments, the alarm module 33 includes:
[0135] The abnormal point determination unit is used to determine the abnormal point according to the abnormal state information and the operation log of the nuclear power reheater, wherein the abnormal state information is determined according to the difference between the actual state information and the first state information.
[0136] The first alarm information generating unit is used to generate the above-mentioned first alarm information according to the above-mentioned abnormal point.
[0137] In some embodiments, the nuclear power reheater includes a steam-water separation reheater, and the nuclear power reheater startup management device further includes:
[0138] An execution module is used to execute the above-mentioned startup sequence when a startup instruction is detected and the above-mentioned steam-water separation reheater meets the startup conditions. The above-mentioned startup instruction is used to instruct the startup of the above-mentioned steam-water separation reheater. The above-mentioned startup conditions include steam turbine reset and the water level of the above-mentioned steam-water separation reheater is less than or equal to the water level threshold.
[0139] It should be noted that the information interaction, execution process, etc. between the above-mentioned devices / units are based on the same concept as the method embodiment of the present application. Their specific functions and technical effects can be found in the method embodiment part and will not be repeated here.
[0140] Embodiment three:
[0141] Figure 4 This is a schematic diagram of the structure of an electronic device provided by an embodiment of the present application. Figure 4As shown, the electronic device 4 of this embodiment includes: at least one processor 40 ( Figure 4 Only one processor is shown in the figure), a memory 41, and a computer program 42 stored in the memory 41 and executable on the at least one processor 40, wherein the processor 40 implements the steps in any of the above-mentioned method embodiments when executing the computer program 42.
[0142] The electronic device 4 may be a computing device such as a desktop computer, a notebook, a PDA, or a cloud server. The electronic device may include, but is not limited to, a processor 40 and a memory 41. Those skilled in the art will appreciate that Figure 4 It is only an example of the electronic device 4 and does not constitute a limitation on the electronic device 4. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, it may also include input and output devices, network access devices, etc.
[0143] The processor 40 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.
[0144] In some embodiments, the memory 41 may be an internal storage unit of the electronic device 4, such as a hard disk or memory of the electronic device 4. In other embodiments, the memory 41 may also be an external storage device of the electronic device 4, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. equipped on the electronic device 4. Further, the memory 41 may also include both an internal storage unit of the electronic device 4 and an external storage device. The memory 41 is used to store an operating system, an application program, a boot loader (BootLoader), data, and other programs, such as the program code of the computer program, etc. The memory 41 may also be used to temporarily store data that has been output or is to be output.
[0145] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by 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 embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.
[0146] An embodiment of the present application also provides a network device, which includes: at least one processor, a memory, and a computer program stored in the memory and executable on the at least one processor, wherein the processor implements the steps in any of the above-mentioned method embodiments when executing the computer program.
[0147] An embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in the above-mentioned method embodiments can be implemented.
[0148] An embodiment of the present application provides a computer program product. When the computer program product runs on an electronic device, the electronic device can implement the steps in the above-mentioned method embodiments when executing the computer program product.
[0149] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, which can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor, the steps of the above-mentioned various method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may at least include: any entity or device that can carry the computer program code to the camera / electronic device, recording medium, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, RandomAccess Memory), electric carrier signal, telecommunication signal and software distribution medium. For example, a USB flash drive, a mobile hard disk, a magnetic disk or an optical disk. In some jurisdictions, according to legislation and patent practice, computer-readable media cannot be electric carrier signals and telecommunication signals.
[0150] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0151] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example 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 performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.
[0152] In the embodiments provided in the present application, it should be understood that the disclosed devices / network equipment and methods can be implemented in other ways. For example, the device / network equipment embodiments described above are merely schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.
[0153] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
[0154] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.
Claims
1. A nuclear power reheater startup management method, characterized in that: Applied to nuclear power reheater control system, including: Acquiring actual state information of a nuclear power reheater during execution of a startup sequence, the startup sequence comprising a startup step for starting the nuclear power reheater, the actual state information reflecting current state information of the nuclear power reheater; Determining whether the nuclear power reheater has an abnormal state according to the actual state information and the corresponding first state information, wherein the first state information reflects the state information that the nuclear power reheater should currently meet; When it is determined that the state is abnormal, a first alarm message is generated, where the alarm message is used to indicate that the nuclear power reheater has an abnormal state.
2. The nuclear power reheater startup management method according to claim 1, characterized in that: The startup sequence includes a plurality of startup steps. In the process of executing the startup sequence, obtaining actual status information of the nuclear power reheater includes: In the process of executing the startup sequence, each time a startup step is executed, obtaining the actual state information corresponding to the current startup step; Correspondingly, judging whether the nuclear power reheater has an abnormal state according to the actual state information and the corresponding first state information includes: Determine whether the nuclear power reheater has the abnormal state according to the actual state information corresponding to the current startup step and the first state information.
3. The nuclear power reheater startup management method according to claim 2, characterized in that: After judging whether the nuclear power reheater has the abnormal state according to the actual state information corresponding to the current startup step and the first state information, the method further includes: In the case where it is determined that the state abnormality does not exist, determining whether the nuclear power reheater satisfies second state information, where the second state information reflects state information that the nuclear power reheater should satisfy before executing the next startup step; When it is determined that the nuclear power reheater satisfies the second state information, the next startup step is executed.
4. The nuclear power reheater startup management method according to claim 3, characterized in that: After determining whether the nuclear power reheater meets the second state information, the method further includes: If the nuclear power reheater still does not meet the second status information at the end of the target time period, a second alarm message is generated, and the execution of the current startup step is suspended or terminated. The target time period is determined based on the time for executing the current startup step and the preset execution time. The second alarm message is used to indicate that the nuclear power reheater has an execution abnormality in the current startup step.
5. The nuclear power reheater startup management method according to claim 1, characterized in that: The actual state information and the first state information both include valve opening information and temperature information, and judging whether the nuclear power reheater has an abnormal state according to the actual state information and the first state information includes: When the valve opening information in the actual state information does not match the valve opening information in the first state information, And / or, when the temperature information in the actual state information does not conform to the temperature information in the first state information, it is determined that the nuclear power reheater has the state abnormality.
6. The nuclear power reheater startup management method according to claim 1, characterized in that: The generating of the first warning information comprises: determining an abnormal point according to abnormal state information and an operation log of the nuclear power reheater, wherein the abnormal state information is determined according to a difference between the actual state information and the first state information; The first alarm information is generated according to the abnormal point.
7. The nuclear power reheater startup management method according to any one of claims 1 to 6, characterized in that: The nuclear power reheater includes a steam-water separation reheater, and before obtaining the actual state information of the nuclear power reheater during the execution of the startup sequence, the process further includes: When a start-up instruction is detected and the steam-water separator reheater meets the start-up conditions, the start-up sequence is executed, the start-up instruction is used to instruct the start-up of the steam-water separator reheater, and the start-up conditions include steam turbine reset and the water level of the steam-water separator reheater is less than or equal to the water level threshold.
8. A nuclear power reheater startup management device, characterized in that: include: A state acquisition module, used to acquire actual state information of a nuclear power reheater during execution of a startup sequence, wherein the startup sequence includes a startup step for starting the nuclear power reheater, and the actual state information reflects current state information of the nuclear power reheater; A judgment module, used for judging whether the nuclear power reheater has a state abnormality according to the actual state information and corresponding first state information, wherein the first state information reflects the state information that the nuclear power reheater should currently meet; The alarm module is used to generate a first alarm message when it is determined that the state is abnormal, and the alarm message is used to indicate that the nuclear power reheater has an abnormal state.
9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the method according to any one of claims 1 to 7 is implemented.
10. A computer program product, characterized in that When the computer program product runs on an electronic device, the electronic device is enabled to execute the method according to any one of claims 1 to 7.