Steam turbine crisis interruption simulation method and device, storage medium and electronic equipment
By simulating the ETS's operating status at a 1:1 scale, the problem of complex and invisible ETS actions was solved, realizing visualization of the ETS's action process, helping staff to handle anomalies in a timely manner, and ensuring the normal operation of the steam turbine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGDONG YUEDIAN DAYAWAN INTEGRATED ENERGY CO LTD
- Filing Date
- 2023-03-17
- Publication Date
- 2026-06-12
AI Technical Summary
In the existing technology, the operating principle and process of the turbine emergency trip system (ETS) are complex and invisible, which makes it impossible to effectively monitor important turbine parameters when the ETS fails to operate or malfunctions, thus affecting normal operation.
This invention provides a method and apparatus for simulating emergency shutdown of a steam turbine. By simulating different operating states of the ETS (Emergency Turbine Shutdown System) on a one-to-one scale, the parameters of the simulation components are collected and adjusted, and the target operating state of the simulation components is displayed, thereby realizing the visualization of the operating principle and process of the ETS.
This allows staff to intuitively understand the operating principles and processes of the ETS, promptly identify and address any abnormalities, and ensure the normal operation of the steam turbine.
Smart Images
Figure CN116384083B_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of simulation technology, specifically to a method, apparatus, storage medium, and electronic device for simulating a steam turbine crisis shutdown. Background Technology
[0002] The Emergency Trip System (ETS) of a steam turbine, as one of the most important protection systems in electrothermal control equipment, is mainly used to monitor critical parameters of the steam turbine. When the ETS fails to operate or malfunctions, monitoring of critical turbine parameters cannot be achieved, and the normal operation of the steam turbine cannot be guaranteed. Therefore, personnel need to have a thorough understanding of the operating principles and processes of the ETS in order to promptly detect abnormal states and take appropriate action when an ETS malfunctions. However, the operating principles and processes of the ETS are complex, and they are not visible during actual operation. Summary of the Invention
[0003] The purpose of this disclosure is to provide a steam turbine emergency shutdown simulation method, device, storage medium, and equipment, which visualizes the operating status of the emergency shutdown system through simulation states that correspond one-to-one with the operating status of the emergency shutdown system.
[0004] To achieve the above objectives, in a first aspect, this disclosure provides a steam turbine emergency shutdown simulation method, the method comprising:
[0005] In response to a received simulation command, a target simulation state corresponding to the simulation command is determined from multiple simulation states, wherein the multiple simulation states are preset states used to simulate the operating state of the steam turbine emergency shutdown system.
[0006] Collect simulation parameters of the simulation elements in the crisis interruption flow network simulation model under the target simulation state;
[0007] Based on the simulation parameters of the simulation element, the operating state of the simulation element in the crisis interruption flow network simulation model is adjusted to obtain the target operating state of the simulation element, and the target operating state of the simulation element is displayed.
[0008] Optionally, when the simulation instruction is a crisis disarmament simulation instruction, the target simulation state is a crisis disarmament simulation state.
[0009] The simulation parameters collected from the simulation elements in the crisis interruption flow network simulation model under the target simulation state include:
[0010] Collect valve information of the simulated shutdown solenoid valve in the simulation model of the crisis shutdown flow network under the crisis shutdown simulation state;
[0011] Adjusting the operating state of the simulation elements in the crisis interruption flow network simulation model according to the simulation parameters of the simulation elements includes:
[0012] Based on the information of each valve, adjust each of the simulated shut-off solenoid valves to a de-energized state.
[0013] Optionally, if the simulation command is a high-voltage simulation command, the target simulation state is a high-voltage simulation state; or if the simulation command is a crisis-interruption high-voltage simulation command, the target simulation state is a crisis-interruption high-voltage simulation state.
[0014] The simulation parameters of the simulation elements collected in the crisis interruption flow network simulation model under the target simulation state include:
[0015] Collect valve information of the simulated shutdown solenoid valve in the crisis shutdown flow network simulation model under the high-pressure simulation state or the crisis shutdown high-pressure simulation state.
[0016] Adjusting the operating state of the simulation elements in the crisis interruption flow network simulation model according to the simulation parameters of the simulation elements includes:
[0017] For each of the simulated shut-off solenoid valves, based on the valve information of the simulated shut-off solenoid valve, the simulated shut-off solenoid valve is adjusted to a de-energized state, and the simulated pressure in the crisis shut-off flow network simulation model is determined.
[0018] When the simulated pressure in the crisis interruption flow network simulation model reaches the upper or lower pressure threshold, the simulated interruption solenoid valve is energized.
[0019] Optionally, if the simulation command is a fuel injection simulation command, the target simulation state is a fuel injection simulation state;
[0020] The simulation parameters of the simulation elements collected in the crisis interruption flow network simulation model under the target simulation state include:
[0021] Collect the shutdown valve information of the first simulated shutdown solenoid valve and the reset valve information of the second simulated reset solenoid valve in the crisis shutdown flow network simulation model under the fuel injection simulation state.
[0022] Adjusting the operating state of the simulation elements in the crisis interruption flow network simulation model according to the simulation parameters of the simulation elements includes:
[0023] Based on the shut-off valve information, the first simulated shut-off solenoid valve is energized, and based on the reset valve information, the second simulated reset solenoid valve is energized, and the state of the simulated flying ring in the crisis shut-off flow network simulation model is determined.
[0024] When the simulated flying ring is in the flying-out state, adjust the first simulated shut-off solenoid valve and the second simulated reset solenoid valve to the de-energized state.
[0025] Optionally, when the simulation command is a turbine brake-on simulation command, the simulation state is a turbine brake-on simulation state;
[0026] The simulation parameters collected from the simulation elements in the crisis interruption flow network simulation model under the target simulation state include:
[0027] Collect valve information of the first simulated reset solenoid valve in the emergency trip flow network simulation model under the steam turbine tripping simulation state;
[0028] The step of adjusting the operating state of each simulation element in the crisis interruption flow network simulation model according to the simulation parameters of the simulation elements includes:
[0029] Based on the valve information, the first simulated reset solenoid valve is energized, and the brake-on state of the simulated turbine in the crisis interruption flow network simulation model is determined.
[0030] If the simulated turbine is successfully engaged, adjust the first simulated reset solenoid valve to a de-energized state.
[0031] Optionally, the method further includes:
[0032] In response to the user's trigger operation on the simulated trip handle in the simulation interface, the simulated trip handle in the crisis interruption flow network simulation model is adjusted to be in the pulled-out state, and the simulated interruption isolation slide valve in the crisis interruption flow network simulation model is adjusted to be in the unloading position; or,
[0033] In response to the speed adjustment command of the simulated turbine in the crisis interruption flow network simulation model, the speed of the simulated turbine is adjusted until the speed of the simulated turbine reaches the speed threshold, the simulated fly ring is adjusted to be in the fly-out state, and the simulated interruption isolation slide valve in the crisis interruption flow network simulation model is adjusted to be in the oil unloading position.
[0034] Optionally, the simulation model of the crisis interruption flow network can be constructed in the following ways:
[0035] Collect the fluid path of the steam turbine emergency shutdown system;
[0036] Determine the simulation components corresponding to each component of the turbine emergency tripping system;
[0037] Based on the fluid path, multiple simulation elements are integrated to obtain a crisis blocking flow network simulation model.
[0038] Secondly, this disclosure provides a turbine emergency shutdown simulation device, the device comprising:
[0039] The determination module is configured to determine a target simulation state corresponding to the received simulation command from a plurality of simulation states in response to the received simulation command, wherein the plurality of simulation states are preset states for simulating the operating state of the turbine emergency shutdown system.
[0040] The collection module is configured to collect simulation parameters of simulation elements in the crisis interruption flow network simulation model under the target simulation state.
[0041] The simulation module is configured to adjust the operating state of each simulation element in the crisis interruption flow network simulation model according to the simulation parameters of the plurality of simulation elements, obtain the target operating state of the simulation element, and display the target operating state of the simulation element.
[0042] Thirdly, this disclosure provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the above-described turbine crisis shutdown simulation method.
[0043] Fourthly, this disclosure provides an electronic device, comprising:
[0044] A memory on which computer programs are stored;
[0045] A processor is used to execute the computer program in the memory to implement the steps of the above-described turbine crisis shutdown simulation method.
[0046] Through the above technical solution, in response to the received simulation command, the target simulation state corresponding to the simulation command is determined from multiple simulation states. The simulation parameters of the simulation elements in the crisis interruption flow network simulation model under the target simulation state are collected. Based on the simulation parameters of the simulation elements, the operating state of the simulation elements in the crisis interruption flow network simulation model is adjusted to obtain the target operating state of the simulation elements and display the target operating state of the simulation elements. The different operating states of the ETS are simulated one-to-one, and the target operating state of the simulation elements is displayed. This helps the staff to understand the operating principle and process of the ETS under different operating states, so as to deal with the ETS in a timely manner when the ETS is abnormal.
[0047] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description
[0048] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:
[0049] Figure 1 This is a flowchart illustrating a turbine crisis shutdown simulation method according to exemplary embodiments of the present disclosure.
[0050] Figure 2 This is a state diagram of a crisis interruption flow network simulation model illustrated according to exemplary embodiments of the present disclosure.
[0051] Figure 3 This is another schematic diagram of a crisis interruption flow network simulation model illustrated according to exemplary embodiments of this disclosure.
[0052] Figure 4 This is another schematic diagram of a crisis interruption flow network simulation model illustrated according to exemplary embodiments of this disclosure.
[0053] Figure 5 This is another schematic diagram of a crisis interruption flow network simulation model illustrated according to exemplary embodiments of this disclosure.
[0054] Figure 6 This is another schematic diagram of a crisis interruption flow network simulation model illustrated according to exemplary embodiments of this disclosure.
[0055] Figure 7 This is another schematic diagram of a crisis interruption flow network simulation model illustrated according to exemplary embodiments of this disclosure.
[0056] Figure 8 This is another schematic diagram of a crisis interruption flow network simulation model illustrated according to exemplary embodiments of this disclosure.
[0057] Figure 9 This is another schematic diagram of a crisis interruption flow network simulation model illustrated according to exemplary embodiments of this disclosure.
[0058] Figure 10 This is another schematic diagram of a crisis interruption flow network simulation model illustrated according to exemplary embodiments of this disclosure.
[0059] Figure 11 This is a partial schematic diagram of a crisis disruption flow network simulation model illustrated according to exemplary embodiments of the present disclosure.
[0060] Figure 12 This is another schematic diagram of a crisis disruption flow network simulation model illustrated according to exemplary embodiments of the present disclosure.
[0061] Figure 13 This is a block diagram illustrating a turbine crisis shutdown simulation device according to exemplary embodiments of the present disclosure.
[0062] Figure 14 This is a block diagram illustrating an electronic device according to exemplary embodiments of the present disclosure.
[0063] Explanation of reference numerals in the attached figures
[0064] 100 Crisis Interruption Flow Network Simulation Module; 200 Interruption Isolation Valve Flow Network Simulation Module
[0065] 300 Reset Test Valve Flow Network Simulation Module Detailed Implementation
[0066] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.
[0067] It should be noted that all actions involving the acquisition of signals, information, or data in this disclosure are carried out in compliance with the relevant data protection laws and policies of the country where the location is situated, and with authorization from the owner of the relevant device.
[0068] As mentioned in the background section, when the ETS (Electronic Toll Collection System) fails to operate or malfunctions, it is impossible to monitor critical turbine parameters, thus compromising the turbine's normal operation. Existing technology uses a crisis tripping device installed in the turbine's high-pressure fire-resistant oil system to receive ETS tripping commands and trip the turbine in a crisis, protecting its safety. However, the operating principle and process of the ETS are complex and invisible, making it difficult for personnel to intuitively understand their operation.
[0069] In view of this, this disclosure provides a steam turbine emergency trip simulation method, device, storage medium and electronic equipment, which simulates different operating states of ETS on a one-to-one scale and visualizes the different operating states of ETS, so that staff can intuitively understand the operating principle and operation process of ETS.
[0070] Figure 1 This is a flowchart illustrating a turbine emergency shutdown simulation method according to exemplary embodiments of this disclosure. See also... Figure 1 The method includes the following steps:
[0071] In step S101, in response to the received simulation command, the target simulation state corresponding to the simulation command is determined from multiple simulation states, wherein the multiple simulation states are preset states used to simulate the operating state of the turbine emergency shutdown system.
[0072] Specifically, each simulation state of the turbine emergency shutdown system uniquely corresponds to a simulation command.
[0073] In step S102, the simulation parameters of the simulation elements in the crisis interruption flow network simulation model under the target simulation state are collected.
[0074] Specifically, simulation parameters of simulation elements in the crisis interruption flow network simulation model under the corresponding target simulation state can be collected through user input operations on the simulation interface.
[0075] In step S103, the operating state of the simulation element in the crisis interruption flow network simulation model is adjusted according to the simulation parameters of the simulation element to obtain the target operating state of the simulation element and display the target operating state of the simulation element.
[0076] Specifically, the crisis interruption flow network simulation model includes a crisis interruption flow network simulation module 100, an interruption isolation valve flow network simulation module 200, and a reset test valve flow network simulation module 300. By adjusting the operating states of the simulation components in the crisis interruption flow network simulation module 100, the interruption isolation valve flow network simulation module 200, or the reset test valve flow network simulation module 300, the crisis interruption flow network simulation model can be placed in different simulation states.
[0077] Specifically, the operating states of the simulation components in the crisis interruption flow network simulation model differ under different simulation conditions. Therefore, by adjusting the operating states of the simulation components according to their simulation parameters, the crisis interruption flow network simulation model can simulate different operating states of the ETS.
[0078] This disclosure responds to received simulation commands by determining the target simulation state corresponding to the command from multiple simulation states, collecting simulation parameters of simulation components in the crisis interruption flow network simulation model under the target simulation state, adjusting the operating state of the simulation components in the crisis interruption flow network simulation model according to the simulation parameters of the simulation components, obtaining the target operating state of the simulation components, and displaying the target operating state of the simulation components. By simulating different operating states of the ETS on a one-to-one scale and visualizing the operating state of each simulation component, the staff can gain a deeper understanding of the operating principles and processes of the ETS under different operating states through the simulation interface. When the ETS malfunctions, the cause of the malfunction can be determined in a timely manner, and the ETS can be dealt with accordingly.
[0079] To help those skilled in the art better understand the turbine crisis shutdown simulation method provided in this disclosure, the steps of the above method are illustrated in detail below.
[0080] In one feasible embodiment, when the simulation command is a crisis interdiction simulation command, the target simulation state is a crisis interdiction simulation state.
[0081] In step S102, the simulation parameters of the simulation elements in the crisis interruption flow network simulation model under the target simulation state are collected, including:
[0082] Collect valve information of the simulated shutdown solenoid valve in the crisis shutdown flow network simulation model under crisis shutdown simulation conditions;
[0083] In step S103, the operating state of the simulation elements in the crisis interruption flow network simulation model is adjusted according to the simulation parameters of the simulation elements, including:
[0084] Based on the information of each valve, adjust each simulated shut-off solenoid valve to a de-energized state.
[0085] For example, refer to Figure 2 and Figure 3 Upon receiving the trip command from the controller, the simulation command is determined to be a crisis interruption simulation command. At this time, the target simulation state is the crisis interruption simulation state. The valve information of the simulation interruption solenoid valves 6YV, 7YV, 8YV and 9YV in the crisis interruption flow network simulation module 100 in the crisis interruption flow network simulation model is collected under the crisis interruption simulation state. According to the valve information corresponding to the simulation interruption solenoid valves 6YV, 7YV, 8YV and 9YV respectively, the simulation interruption solenoid valves 6YV, 7YV, 8YV and 9YV are adjusted to be in a de-energized state. At this time, the oil unloading passage in the crisis interruption flow network simulation model is opened and the oil pressure is released.
[0086] in, Figure 2 In the diagram, 5AYV and 5BYA represent simulated overspeed solenoid valves, 3YV represents simulated mechanical shutdown solenoid valves, PS represents simulated pressure switches, and ZS1 to ZS5 are simulated contacts in a simulated steam turbine.
[0087] In one feasible embodiment, when the simulation command is a high-voltage simulation command, the target simulation state is a high-voltage simulation state; or, when the simulation command is a crisis-interruption high-voltage simulation command, the target simulation state is a crisis-interruption high-voltage simulation state.
[0088] In step S102, the simulation parameters of the simulation elements in the crisis interruption flow network simulation model under the target simulation state are collected, including:
[0089] Collect valve information of the simulated shut-off solenoid valve in the crisis shut-off flow network simulation model under high-pressure simulation or crisis shut-off high-pressure simulation.
[0090] In step S103, the operating state of the simulation elements in the crisis interruption flow network simulation model is adjusted according to the simulation parameters of the simulation elements, including:
[0091] For each simulated shut-off solenoid valve, based on the valve information of the simulated shut-off solenoid valve, the simulated shut-off solenoid valve is adjusted to a de-energized state, and the simulated pressure in the crisis shut-off flow network simulation model is determined.
[0092] When the simulated pressure in the crisis interruption flow network simulation model reaches the upper or lower pressure threshold, the simulated interruption solenoid valve is energized.
[0093] The upper and lower pressure limits can be preset based on the pressure of the turbine emergency trip system under high pressure operation. In this disclosure, the upper pressure limit is set to 14.99 MPa and the lower pressure limit is set to 0.0 MPa.
[0094] For example, refer to Figure 4 Taking the simulated shut-off solenoid valve 6YV in the crisis shutdown flow network simulation module 100 as an example, when the simulation command is a high-pressure simulation command, the valve information of the simulated shut-off solenoid valve 6YV in the crisis shutdown flow network simulation module 100 under high-pressure simulation is collected. Based on the valve information, the simulated shut-off solenoid valve 6YV is adjusted to a de-energized state. At this time, the simulated pressure in the crisis shutdown flow network simulation module increases. When the simulated pressure rises to 14.99 MPa, the shut-off solenoid valve 6YV is adjusted to a energized state, and the simulated pressure in the crisis shutdown flow network simulation module decreases until the simulated pressure drops to 5.0 MPa. (Refer to...) Figure 5 Taking the simulated shut-off solenoid valve 6YV in the crisis shutdown flow network simulation module 100 as an example, when the simulation command is a high-pressure simulation command, the valve information of the simulated shut-off solenoid valve 7YV in the crisis shutdown flow network simulation module 100 under high-pressure simulation is collected. Based on the valve information, the simulated shut-off solenoid valve 7YV is adjusted to a de-energized state. At this time, the simulation pressure in the crisis shutdown flow network simulation module drops. When the simulation pressure drops to 0.0MPa, the shut-off solenoid valve 7YV is adjusted to a energized state, and the simulation pressure in the crisis shutdown flow network simulation module rises until the simulation pressure rises to 5.0MPa.
[0095] Specifically, the operating state of the simulated shutdown solenoid valve 8YV in the crisis shutdown flow network simulation module 100 under high pressure simulation is exactly the same as that of the simulated shutdown solenoid valve 6YV, and the operating state of the simulated shutdown solenoid valve 7YV under high pressure simulation is exactly the same as that of the simulated shutdown solenoid valve 7V.
[0096] Specifically, the change process of the operational state of the crisis interruption flow network simulation model under the crisis interruption high-pressure simulation state is exactly the same as the change process under the high-pressure simulation state.
[0097] In one feasible embodiment, when the simulation command is a fuel injection simulation command, the target simulation state is the fuel injection simulation state;
[0098] In step S102, the simulation parameters of the simulation elements in the crisis interruption flow network simulation model under the target simulation state are collected, including:
[0099] Collect the shutdown valve information of the first simulated shutdown solenoid valve and the reset valve information of the second simulated reset solenoid valve in the crisis shutdown flow network simulation model under the fuel injection simulation state.
[0100] In step S103, the operating state of the simulation elements in the crisis interruption flow network simulation model is adjusted according to the simulation parameters of the simulation elements, including:
[0101] Based on the shut-off valve information, the first simulated shut-off solenoid valve is energized, and based on the reset valve information, the second simulated reset solenoid valve is energized, and the state of the simulated flying ring in the crisis shut-off flow network simulation model is determined.
[0102] When the simulated flying ring is in the flying-out state, adjust the first simulated shut-off solenoid valve and the second simulated reset solenoid valve to the de-energized state.
[0103] For example, refer to Figure 6 When the simulation command is the fuel injection simulation command, the target simulation state is the fuel injection simulation state. The shutdown valve information of the simulation shutdown solenoid valve 4YV and the reset valve information of the simulation reset solenoid valve 2YV in the crisis shutdown flow network simulation model under the fuel injection simulation state are collected. According to the shutdown valve information, the simulation shutdown solenoid valve 4YV is adjusted to be in the energized state. At the same time, according to the reset valve information, the simulation reset solenoid valve 2YV is adjusted to be in the energized state. At this time, the simulation fly ring flies out, and the simulation shutdown solenoid valve 4YV and the simulation reset solenoid valve 2YV are adjusted to be in the de-energized state.
[0104] In one feasible embodiment, when the simulation command is a turbine brake-on simulation command, the simulation state is a turbine brake-on simulation state.
[0105] In step S102, the simulation parameters of the simulation elements in the crisis interruption flow network simulation model under the target simulation state are collected, including:
[0106] Collect valve information of the first simulated reset solenoid valve in the emergency trip flow network simulation model under the steam turbine tripping simulation state;
[0107] In step S103, the operating state of the simulation elements in the crisis interruption flow network simulation model is adjusted according to the simulation parameters of the simulation elements, including:
[0108] Based on the valve information, adjust the first simulation reset solenoid valve to the energized state, and determine the brake-on state of the simulated turbine in the emergency trip flow network simulation model;
[0109] If the simulated turbine is successfully engaged, adjust the first simulated reset solenoid valve to the de-energized state.
[0110] For example, refer to Figure 7 , Figure 8 and Figure 9 Upon receiving the controller's tripping command, it is determined that the simulation command is a turbine tripping simulation command. At this time, the target simulation state is the turbine tripping simulation state. Valve information of the simulation reset solenoid valve 1YV in the reset test valve flow network simulation module 300 is collected under the turbine tripping simulation state. Based on the valve information, the simulation reset solenoid valve 1YV is adjusted to be energized. (Refer to...) Figure 8 As shown, at this time, the turbine lubricating oil pushes the brake spool valve, causing the ZS1 and ZS2 contacts to close, and simultaneously pushing the shut-off spool valve in the shut-off isolation valve flow network simulation module 200 to the brake position, as shown. Figure 9 As shown, after the gate is successfully engaged, the ZS2 contact closes, the simulated reset solenoid valve 1YV is de-energized, the gate engagement slide valve is reset under the action of the spring, and the ZS1 contact opens.
[0111] In one feasible embodiment, the method further includes:
[0112] In response to the user's trigger operation on the simulated trip handle in the simulation interface, adjust the simulated trip handle in the crisis interruption flow network simulation model to the pulled-out state, and adjust the simulated interruption isolation slide valve in the crisis interruption flow network simulation model to the oil drain position; or,
[0113] In response to the speed regulation command of the simulated turbine in the crisis interruption flow network simulation model, the speed of the simulated turbine is adjusted until the speed of the simulated turbine reaches the speed threshold. The simulated fly ring is then adjusted to be in the fly-out state, and the simulated interruption isolation slide valve in the crisis interruption flow network simulation model is adjusted to be in the oil unloading position.
[0114] Specifically, the triggering operation includes the user clicking the control buttons of the simulated trip handle on the simulation interface, where the control buttons of the simulated trip handle include a cut-off button and a reset button.
[0115] The speed threshold can be preset according to the actual operating speed of the turbine in the ETS system. In this disclosure, the speed threshold is set to 112% of the rated speed of the turbine.
[0116] For example, refer to Figure 10In response to the user's click on the shut-off button in the simulation interface, the simulated trip handle in the crisis shut-off flow network simulation model is adjusted to the pulled-out state. At this time, the simulated trip handle drives the simulated shut-off slide valve in the crisis shut-off flow network simulation model to move to the right and to the oil unloading position through the simulated linkage, opening the oil unloading passage. The simulated oil pressure in the crisis shut-off flow network simulation model is safely released, and the simulated turbine is shut down, so as to realize the simulation of the ETS being in the manual turbine shut-off state.
[0117] For example, in response to the user's command to adjust the speed of the simulated turbine in the crisis interruption flow network simulation model, the speed of the simulated turbine is increased until it reaches 112% of its rated speed. At this point, the simulated fly ring flies out, and the simulated interruption slide valve in the crisis interruption flow network simulation model is in the oil unloading position, opening the oil unloading passage. The simulated oil pressure in the crisis interruption flow network simulation model is safely released, and the simulated turbine is interrupted, thus simulating the ETS being in a mechanical overspeed state.
[0118] In one feasible embodiment, the construction method of the crisis interruption flow network simulation model includes:
[0119] Collect the fluid path of the steam turbine emergency shutdown system;
[0120] Determine the simulation components corresponding to each component of the turbine emergency tripping system;
[0121] Based on the fluid path, multiple simulation components are integrated to obtain a simulation model of the crisis shielding flow network.
[0122] The fluid path of the turbine emergency shutdown system is obtained based on its operating principle.
[0123] Specifically, this disclosure is based on the MUSE (Multi-User Simulation Environment) real-time simulation platform, and uses C language and FORTRAN code to build the background running program of the crisis interruption flow network simulation model, and uses VISIO graphics to instantiate the ETS system one-to-one.
[0124] Specifically, based on the fluid path of the ETS, the simulation components corresponding to each component in the ETS are determined. Based on the fluid path, multiple simulation components are integrated to obtain the crisis interruption flow network simulation module 100, the interruption isolation valve flow network simulation module 200, and the reset test valve flow network simulation module 300. The various flow network simulation modules are combined to obtain the crisis interruption flow network simulation model.
[0125] Among them, reference Figure 11In the crisis interruption flow network simulation module 100, the pressure of pressure source point YD02 is taken as the EH oil (Emergency hydraulic oil, fire-resistant oil) main pipe pressure, and the pressure of trap point SSS is taken as the return oil main pipe pressure. The throttle orifices PJLK1 and PJLK2 are adjusted to the maximum flow capacity (Cvmax) state so that the inlet pressure of valve pressure gauge connected pipeline pressure measuring point 2CP1O1 is between 4.898MPa and 9.698MPa.
[0126] Specifically, Figure 11 In this context, 2CPXXX represents the pressure gauge connection pipeline, where XXX represents the pressure measuring point number. For example, 2CP201 represents pressure measuring point 201 on the pressure gauge connection pipeline, and 2CP301 represents pressure measuring point 301 on the pressure gauge connection pipeline. V26A to V48 represent valves, PEHP represents oil pipelines, PJLK1 and PJLK2 represent throttle orifices, AP01 to AP101 represent pressure switches, and ASTX represents simulated solenoid valves. For example, AST1 to AST4 represent simulated solenoid valves 1 to 4.
[0127] Among them, reference Figure 12 In the reset test valve flow network simulation module 300, the pressure at the source point YD3 is taken as the pressure of the lubricating oil main pipe, and the pressure at the sink point SSG is taken as the pressure of the lubricating oil tank. The flow capacity (Cvmax) of the throttle orifices PPP, PKK1, and PKK2 is adjusted to about 0.0001MPa.
[0128] Specifically, Figure 12 In this context, CTLUV represents a valve actuator used to control the switching of the simulated solenoid valve. For example, CTLUV1YV represents a valve actuator used to control the switching of the simulated reset solenoid valve 1YV, CTLUV2YV represents a valve actuator used to control the switching of the simulated reset solenoid valve 2YV, and CTLUVHF represents a valve actuator used to control the switching of the simulated reset spool valve VHF. 1YV and 2YV represent simulated reset solenoid valves, PKK1 and PKK2 represent throttle orifices, PPP represents oil pipelines, and APH1 and APH2 represent pressure switches. The background FORTRAN code script for the shut-off isolation valve flow network simulation module 200 includes:
[0129] / *
[0130] equ(op,CTEH_VZD_OP.DS)
[0131] equ(cl,CTEH_VZD_CL.DS)
[0132] equ(f1,CTLU_VHF@FB2.DS)
[0133] equ(mpb,TLU_PPP@OUTPUT.FG) / / Manually trip the circuit breaker locally
[0134] equ(fc,TLU_PKK2@OUTPUT.PI1) / / Flying Ring Shot
[0135] equ(et,CTLU_3YV_OP.DS) / / Mechanical shutdown electromagnet
[0136] equ(fw,CTLU_VHF@FB2.DS) / / Reset slide valve
[0137] /
[0138] op=mpb+fc+et; / / interruption
[0139] cl = fw; / / Reset
[0140] Super Speed Flying Ring Action Script:
[0141] / *
[0142] equ(fc,TLU_PKK2@OUTPUT.PI1) / / Flying Ring
[0143] equ(n,TMS_TB_SP.N0)
[0144] equ(ph,TLU_APH2@H_OUT.DS)
[0145] /
[0146] if(((n>2960)&&(ph>0.5))||(n>3360)) / / Flying Ring Shot
[0147] fc = 1;
[0148] if((ph<0.5)&&(n<3100)) / / Flying ring reset
[0149] fc = 0;
[0150] This disclosure, based on the MUSE real-time simulation platform and according to the ETS operating principle, constructs a crisis interruption flow network simulation model that is completely identical to the ETS. Responding to received simulation commands, it determines the target simulation state from multiple simulation states, collects the simulation parameters of the simulation components in the crisis interruption flow network simulation model under the target simulation state, adjusts the operating state of the simulation components according to the simulation parameters, obtains the target operating state of the simulation components, and displays the target operating state of the simulation components. This allows for a one-to-one simulation of different ETS operating states according to simulation commands, and visualizes the operating state of each simulation component under different ETS operating states. This enables personnel to gain a deeper understanding of the operating principles and processes of the ETS under different operating states through the simulation interface, allowing for timely identification of the cause of ETS anomalies and subsequent handling. Furthermore, because the pressure changes and other conditions in the crisis interruption flow network simulation model more closely resemble the actual ETS operation, and the dynamic display of each action process provides a clearer and more intuitive visual representation, the simulation interface can be used to educate users, making it easier for them to understand and learn the operating principles and processes of the ETS.
[0151] Based on the same inventive concept, this disclosure also provides a steam turbine emergency tripping simulation device 1300, see [link to relevant documentation]. Figure 13 The device 1300 includes a determination module 1301, a collection module 1302, and a simulation module 1303.
[0152] The determining module 1301 is configured to determine the target simulation state corresponding to the simulation command from multiple simulation states in response to the received simulation command. The multiple simulation states are preset states used to simulate the operating state of the turbine emergency shutdown system.
[0153] The collection module 1302 is configured to collect simulation parameters of simulation elements in the crisis interruption flow network simulation model under the target simulation state.
[0154] The simulation module 1303 is configured to adjust the operating state of each simulation element in the crisis interruption flow network simulation model according to the simulation parameters of multiple simulation elements, obtain the target operating state of the simulation elements, and display the target operating state of the simulation elements.
[0155] This disclosure, based on the MUSE real-time simulation platform and according to the ETS operating principle, constructs a crisis interruption flow network simulation model that is completely identical to the ETS. Responding to received simulation commands, it determines the target simulation state from multiple simulation states, collects the simulation parameters of the simulation components in the crisis interruption flow network simulation model under the target simulation state, adjusts the operating state of the simulation components according to the simulation parameters, obtains the target operating state of the simulation components, and displays the target operating state of the simulation components. This allows for a one-to-one simulation of different ETS operating states according to simulation commands, and visualizes the operating state of each simulation component under different ETS operating states. This enables personnel to gain a deeper understanding of the operating principles and processes of the ETS under different operating states through the simulation interface, allowing for timely identification of the cause of ETS anomalies and subsequent handling. Furthermore, because the pressure changes and other conditions in the crisis interruption flow network simulation model more closely resemble the actual ETS operation, and the dynamic display of each action process provides a clearer and more intuitive visual representation, the simulation interface can be used to educate users, making it easier for them to understand and learn the operating principles and processes of the ETS.
[0156] Furthermore, the collection module 1302 is configured to collect valve information of the simulated shutdown solenoid valve in the crisis shutdown flow network simulation model under crisis shutdown simulation conditions.
[0157] The simulation module 1303 is configured to adjust each simulated shut-off solenoid valve to a de-energized state based on the information of each valve.
[0158] Furthermore, the collection module 1302 is configured to collect valve information of the simulated shutdown solenoid valve in the crisis shutdown flow network simulation model under high pressure simulation or crisis shutdown high pressure simulation.
[0159] The simulation module 1303 is configured to adjust the simulated shut-off solenoid valve to a de-energized state based on the valve information of the simulated shut-off solenoid valve for each simulated shut-off solenoid valve, and determine the simulated pressure in the crisis shut-off flow network simulation model.
[0160] When the simulated pressure in the crisis interruption flow network simulation model reaches the upper or lower pressure threshold, the simulated interruption solenoid valve is energized.
[0161] Furthermore, the collection module 1302 is configured to collect the shutdown valve information of the first simulated shutdown solenoid valve and the reset valve information of the second simulated reset solenoid valve in the crisis shutdown flow network simulation model under the fuel injection simulation state.
[0162] The simulation module 1303 is configured to adjust the first simulated shut-off solenoid valve to an energized state based on shut-off valve information, and to adjust the second simulated reset solenoid valve to an energized state based on reset valve information, and to determine the state of the simulated flying ring in the crisis shut-off flow network simulation model.
[0163] When the simulated flying ring is in the flying-out state, adjust the first simulated shut-off solenoid valve and the second simulated reset solenoid valve to the de-energized state.
[0164] Furthermore, the collection module 1302 is configured to collect valve information of the first simulated reset solenoid valve in the crisis interruption flow network simulation model under the turbine tripping simulation state;
[0165] The simulation module 1303 is configured to adjust the first simulation reset solenoid valve to the energized state based on the valve information, and to determine the brake-on state of the simulated turbine in the emergency trip flow network simulation model.
[0166] If the simulated turbine is successfully engaged, adjust the first simulated reset solenoid valve to the de-energized state.
[0167] Furthermore, the simulation module 1303 is also configured to, in response to a user's trigger operation on the simulation trip handle in the simulation interface, adjust the simulation trip handle in the crisis interruption flow network simulation model to be in the pulled-out state, and adjust the simulation interruption isolation slide valve in the crisis interruption flow network simulation model to be in the unloading position; or,
[0168] In response to the speed regulation command of the simulated turbine in the crisis interruption flow network simulation model, the speed of the simulated turbine is adjusted until the speed of the simulated turbine reaches the speed threshold. The simulated fly ring is then adjusted to be in the fly-out state, and the simulated interruption isolation slide valve in the crisis interruption flow network simulation model is adjusted to be in the oil unloading position.
[0169] Furthermore, the turbine crisis shutdown simulation device also includes a construction module configured to collect the fluid path of the turbine crisis shutdown system.
[0170] Determine the simulation components corresponding to each component of the turbine emergency tripping system;
[0171] Based on the fluid path, multiple simulation components are integrated to obtain a simulation model of the crisis shielding flow network.
[0172] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.
[0173] Based on the same inventive concept, this disclosure also provides an electronic device, comprising:
[0174] A memory on which computer programs are stored;
[0175] A processor is used to execute the computer program in the memory to implement the steps of the above-described turbine crisis shutdown simulation method.
[0176] This disclosure, based on the MUSE real-time simulation platform and according to the ETS operating principle, constructs a crisis interruption flow network simulation model that is completely identical to the ETS. Responding to received simulation commands, it determines the target simulation state from multiple simulation states, collects the simulation parameters of the simulation components in the crisis interruption flow network simulation model under the target simulation state, adjusts the operating state of the simulation components according to the simulation parameters, obtains the target operating state of the simulation components, and displays the target operating state of the simulation components. This allows for a one-to-one simulation of different ETS operating states according to simulation commands, and visualizes the operating state of each simulation component under different ETS operating states. This enables personnel to gain a deeper understanding of the operating principles and processes of the ETS under different operating states through the simulation interface, allowing for timely identification of the cause of ETS anomalies and subsequent handling. Furthermore, because the pressure changes and other conditions in the crisis interruption flow network simulation model more closely resemble the actual ETS operation, and the dynamic display of each action process provides a clearer and more intuitive visual representation, the simulation interface can be used to educate users, making it easier for them to understand and learn the operating principles and processes of the ETS.
[0177] Figure 14 This is a block diagram illustrating an electronic device 1400 according to an exemplary embodiment. For example... Figure 14 As shown, the electronic device 1400 may include a processor 1401 and a memory 1402. The electronic device 1400 may also include one or more of a multimedia component 1403, an input / output (I / O) interface 1404, and a communication component 1405.
[0178] The processor 1401 controls the overall operation of the electronic device 1400 to complete all or part of the steps in the aforementioned turbine crisis shutdown simulation method. The memory 1402 stores various types of data to support the operation of the electronic device 1400. This data may include, for example, instructions for any application or method operating on the electronic device 1400, and application-related data such as contact data, sent and received messages, images, audio, video, etc. The memory 1402 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. Multimedia component 1403 may include a screen and an audio component. The screen may be, for example, a touchscreen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signals may be further stored in memory 1402 or transmitted via communication component 1405. The audio component also includes at least one speaker for outputting audio signals. I / O interface 1404 provides an interface between processor 1401 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual or physical buttons. Communication component 1405 is used for wired or wireless communication between the electronic device 1400 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IoT, eMTC, or other 5G technologies, or combinations thereof, is not limited here. Therefore, the corresponding communication component 1405 may include: a Wi-Fi module, a Bluetooth module, an NFC module, etc.
[0179] In an exemplary embodiment, the electronic device 1400 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the turbine crisis interruption simulation method described above.
[0180] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, which, when executed by a processor, implement the steps of the turbine crisis shutdown simulation method described above. For example, the computer-readable storage medium may be the memory 1402 including program instructions, which may be executed by the processor 1401 of the electronic device 1400 to complete the turbine crisis shutdown simulation method described above.
[0181] In another exemplary embodiment, a computer program product is also provided, comprising a computer program executable by a programmable device, the computer program having a code portion for performing the above-described turbine crisis shutdown simulation method when executed by the programmable device.
[0182] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.
[0183] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.
[0184] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.
Claims
1. A method for simulating a steam turbine emergency shutdown, characterized in that, The method includes: In response to a received simulation command, a target simulation state corresponding to the simulation command is determined from multiple simulation states, wherein the multiple simulation states are preset states used to simulate the operating state of the steam turbine emergency shutdown system. The simulation parameters of the simulation elements in the crisis interruption flow network simulation model under the target simulation state are collected through user input operations on the simulation interface. Based on the simulation parameters of the simulation element, adjust the operating state of the simulation element in the crisis interruption flow network simulation model to obtain the target operating state of the simulation element, and display the target operating state of the simulation element. When the simulation command is a crisis interdiction simulation command, the target simulation state is a crisis interdiction simulation state. The simulation parameters collected from the simulation elements in the crisis interruption flow network simulation model under the target simulation state include: Collect valve information of the simulated shutdown solenoid valve in the simulation model of the crisis shutdown flow network under the crisis shutdown simulation state; Adjusting the operating state of the simulation elements in the crisis interruption flow network simulation model according to the simulation parameters of the simulation elements includes: Based on the information of each valve, adjust each of the simulated shut-off solenoid valves to a de-energized state; The method further includes: In response to the user's trigger operation on the simulated trip handle in the simulation interface, the simulated trip handle in the crisis interruption flow network simulation model is adjusted to be in the pulled-out state, and the simulated interruption isolation slide valve in the crisis interruption flow network simulation model is adjusted to be in the unloading position; or, In response to the speed adjustment command of the simulated steam turbine in the crisis interruption flow network simulation model, the speed of the simulated steam turbine is adjusted until the speed of the simulated steam turbine reaches the speed threshold, the simulated fly ring is adjusted to be in the flyout state, and the simulated interruption isolation slide valve in the crisis interruption flow network simulation model is adjusted to be in the oil unloading position. The construction methods of the crisis shielding flow network simulation model include: Collect the fluid path of the steam turbine emergency shutdown system; Determine the simulation components corresponding to each component of the turbine emergency tripping system; Based on the fluid path, multiple simulation elements are integrated to obtain a crisis blocking flow network simulation model.
2. The turbine emergency shutdown simulation method according to claim 1, characterized in that, When the simulation command is a high-voltage simulation command, the target simulation state is a high-voltage simulation state; or, when the simulation command is a crisis-interruption high-voltage simulation command, the target simulation state is a crisis-interruption high-voltage simulation state. The simulation parameters of the simulation elements collected in the crisis interruption flow network simulation model under the target simulation state include: Collect valve information of the simulated shutdown solenoid valve in the crisis shutdown flow network simulation model under the high-pressure simulation state or the crisis shutdown high-pressure simulation state. Adjusting the operating state of the simulation elements in the crisis interruption flow network simulation model according to the simulation parameters of the simulation elements includes: For each of the simulated shut-off solenoid valves, based on the valve information of the simulated shut-off solenoid valve, the simulated shut-off solenoid valve is adjusted to a de-energized state, and the simulated pressure in the crisis shut-off flow network simulation model is determined. When the simulated pressure in the crisis interruption flow network simulation model reaches the upper or lower pressure threshold, the simulated interruption solenoid valve is energized.
3. The turbine emergency shutdown simulation method according to claim 1, characterized in that, When the simulation command is a fuel injection simulation command, the target simulation state is a fuel injection simulation state; The simulation parameters of the simulation elements collected in the crisis interruption flow network simulation model under the target simulation state include: Collect the shutdown valve information of the first simulated shutdown solenoid valve and the reset valve information of the second simulated reset solenoid valve in the crisis shutdown flow network simulation model under the fuel injection simulation state. Adjusting the operating state of the simulation elements in the crisis interruption flow network simulation model according to the simulation parameters of the simulation elements includes: Based on the shut-off valve information, the first simulated shut-off solenoid valve is energized, and based on the reset valve information, the second simulated reset solenoid valve is energized, and the state of the simulated flying ring in the crisis shut-off flow network simulation model is determined. When the simulated flying ring is in the flying-out state, adjust the first simulated shut-off solenoid valve and the second simulated reset solenoid valve to the de-energized state.
4. The turbine emergency shutdown simulation method according to claim 1, characterized in that, When the simulation command is a turbine brake-on simulation command, the simulation state is a turbine brake-on simulation state. The simulation parameters collected from the simulation elements in the crisis interruption flow network simulation model under the target simulation state include: Collect valve information of the first simulated reset solenoid valve in the emergency trip flow network simulation model under the steam turbine tripping simulation state; The step of adjusting the operating state of each simulation element in the crisis interruption flow network simulation model according to the simulation parameters of the simulation elements includes: Based on the valve information, the first simulated reset solenoid valve is energized, and the brake-on state of the simulated turbine in the crisis interruption flow network simulation model is determined. If the simulated turbine is successfully engaged, adjust the first simulated reset solenoid valve to a de-energized state.
5. A turbine emergency tripping simulation device, characterized in that, The device includes: The determination module is configured to determine a target simulation state corresponding to the received simulation command from a plurality of simulation states in response to the received simulation command, wherein the plurality of simulation states are preset states for simulating the operating state of the turbine emergency shutdown system. The collection module is configured to collect simulation parameters of simulation elements in the crisis interruption flow network simulation model under the target simulation state through user input operations on the simulation interface. The simulation module is configured to adjust the operating state of each simulation element in the crisis interruption flow network simulation model according to the simulation parameters of the plurality of simulation elements, obtain the target operating state of the simulation element, and display the target operating state of the simulation element. The collection module is configured to collect valve information of the simulated shutdown solenoid valves in the crisis shutdown flow network simulation model under the crisis shutdown simulation state; correspondingly, the simulation module is configured to adjust each of the simulated shutdown solenoid valves to a de-energized state according to the valve information. The simulation module is also configured to, in response to a user's trigger operation on the simulated trip handle in the simulation interface, adjust the simulated trip handle in the crisis interruption flow network simulation model to be in the pulled-out state and adjust the simulated interruption isolation slide valve in the crisis interruption flow network simulation model to be in the unloading position; or, in response to a speed adjustment command for the simulated turbine in the crisis interruption flow network simulation model, adjust the speed of the simulated turbine until the speed of the simulated turbine reaches a speed threshold, adjust the simulated fly ring to be in the fly-out state, and adjust the simulated interruption isolation slide valve in the crisis interruption flow network simulation model to be in the unloading position; The turbine crisis interruption simulation device also includes a construction module, which is configured to collect the fluid path of the turbine crisis interruption system; determine the simulation elements corresponding to each component of the turbine crisis interruption system; and integrate multiple simulation elements according to the fluid path to obtain a crisis interruption flow network simulation model.
6. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the steps of the turbine crisis interruption simulation method as described in any one of claims 1-4.
7. An electronic device, characterized in that, include: A memory on which computer programs are stored; A processor for executing the computer program in the memory to implement the steps of the turbine crisis shutdown simulation method according to any one of claims 1-4.