Power device training simulation method

Abstract

The invention belongs to the technical field of ship power system training simulation methods, and particularly relates to a power device training simulation method. Comprising the following steps based on a hot-air engine case assembly body module, a simulation auxiliary module, a simulation oxygen supply system module and a simulation monitoring module: confirming that a power supply is switched on; confirming that a system power switch is turned on; checking the pressure of air, a purging pipeline valve and a pressure reducing valve; pressurizing the liquid oxygen tank; starting a fresh water pump and liquid-phase oxygen supply; simulating starting fuel lightering oil supply; starting a working medium simulation system; confirming that the exhaust system is normal; the monitoring device is started, and the generator control cabinet load switch is turned on; simulating operation of the fire-fighting box; the air purifier is in a starting state, and the cooling fan is in a program control state; according to the invention, based on the hot-air engine case loading body module, a hot-air engine real-time loading body and a simulated hot-air engine case loading body are constructed to establish a power core, and the simulation auxiliary module and the simulation oxygen supply system module are utilized to construct the power device simulation training system.

Description

Technical Field

[0001] The invention belongs to the technical field of ship power system training simulation methods, and in particular relates to a power plant training simulation method. Background Art

[0002] In the process of teaching the structure and principles of complex equipment and large equipment, since students cannot complete the training and teaching directly on the actual equipment, they cannot obtain the required information more truly and intuitively. Therefore, in the above teaching process, introducing videos, images and virtual interactive technologies to achieve simulated operations and principle teaching has become an effective alternative. Usually, the virtual teaching and training system is composed of VR virtual information equipment, virtual control equipment, etc., which are used to realize teaching functions such as principles and structures, virtual disassembly / repair and troubleshooting, subsystem structure composition, subsystem virtual operation and troubleshooting. However, the core content of the current virtual teaching and training system is concentrated on non-physical visual models for operation. In various important key equipment or systems, the feeling of the operation box of the local or regional equipment is an important content to ensure the teaching quality. Therefore, it is necessary to optimize the operation mode of the virtual teaching and training system. Summary of the invention

[0003] The object of the present invention is to provide a power plant training simulation method that combines a steam engine generator assembly, various actual simulation components, and various simulation auxiliary components to realize system simulation control of complex equipment.

[0004] To achieve the above purpose, the present invention adopts the following technical solution.

[0005] A power plant training simulation method includes the following contents: based on a hot air chassis assembly module, a simulation auxiliary module, a simulation oxygen supply system module, and a simulation monitoring module, the following steps are included:

[0006] STP1. Confirm that the "power switch of the power box" is closed; confirm that the power switch of the system display console is turned on, and the network power supply and monitoring computer power supply are turned on.

[0007] STP2, check the pressure of air and purge pipeline valves and pressure reducing valves; pressurize the liquid oxygen tank; open the ball valves in and out of the fresh water system, start the fresh water pump, and supply liquid oxygen;

[0008] STP3, open the fuel system valve, simulate the start-up of the fuel transfer device and the daily fuel supply module; open the nitrogen inlet ball valve and the working fluid bottle valve; confirm that the exhaust system valve is normal, and check that the pressure of each pressure reducing valve is normal;

[0009] STP4, the monitoring device of the box is turned on, the load switch of the generator control cabinet is turned on; the sound insulation door of the box is closed; simulate the following operations: the fire box is running; the air purifier is turned on, and the cooling fan is set to "program control" state;

[0010] STP5. Set the auxiliary machine "manual / automatic" switch to the "automatic" position; press the "standby" button on the display console; reset the heat engine;

[0011] STP6, after the vehicle is ready, press the "Start / Stop" button to start the unit;

[0012] STP7, increase or decrease power after each gear is stable;

[0013] STP8, close the oxygen supply and fuel inlet and outlet valves; close the nitrogen inlet module valve after stopping the purge; close the working fluid bottle valve after stopping; turn off the fresh water pump after the ejector temperature is lower than the preset temperature or the unit stops for a preset time; turn off the monitor, fuse box and charger beside the machine

[0014] The heat engine chassis module includes a heat engine generator component and a chassis monitoring component.

[0015] The steam engine generator assembly includes a simulated installed steam engine and a simulated installed generator; the simulated installed steam engine is connected to the simulated installed generator through an elastic coupling and fixed on the base of the vibration isolation device;

[0016] The box-mounted monitoring components include a steam generator control box, a steam generator interface box, a steam generator distribution box, a fuse box, a servo control box, a machine-side monitor, a charger, a distribution box, and a generator control cabinet, which are used to simulate the control and monitoring of the steam generator set and provide necessary data recording, safety interlocking and alarm functions;

[0017] The simulation auxiliary modules include exhaust system real-installation simulation components, working fluid system real-installation simulation components, purge system real-installation simulation components, fresh water system real-installation simulation components, and fuel system real-installation simulation components;

[0018] The actual simulation components of the fuel system are used to provide the fuel and oxygen for the combustion of the hot gas engine through the fuel system and the oxygen supply system respectively. When the hot gas engine is working, the fuel transfer device transfers the fuel in the oil tank to the intermediate tank, and the daily fuel module supplies the high-pressure oil pump with appropriate pressure, and the high-pressure oil pump supplies it to the hot gas engine after pressurization. When the fuel system is running, the control system collects the flow signal of the fuel flow meter and controls the flow of the oil pump according to the unit power;

[0019] The oxygen supply system is equipped with simulation components, which are used to pressurize and vaporize the liquid oxygen in the liquid oxygen tank and then provide it to the gas turbine for combustion and the crew for breathing;

[0020] The exhaust system simulation assembly is used to discharge the combustion products of the steam engine to the outside of the boat through the exhaust system. The exhaust system can refine the exhaust bubbles and absorb the CO2 in them through seawater, reducing the wake produced by the exhaust gas and improving the concealment of the ship.

[0021] The real-installation simulation component of the fresh water system is used to implement the steps of cooling the circulating fresh water with seawater outside the boat. Specifically, it is used to cool the fresh water delivered by the fresh water pump through the fresh water cooler, and then flow through the box air cooler, the heat generator in-machine cooler, the oil cooler, the working fluid compressor casing and the exhaust cooler, taking away the heat in the heat generator and the box body and then returning to the fresh water pump inlet. The other way flows through the water bath heater in the oxygen supply system to pressurize and heat up the liquid oxygen for gasification;

[0022] The actual simulation components of the purge system are used to provide necessary preparation conditions and shutdown protection for related equipment during the startup and shutdown phases of the hot gas engine, and provide nitrogen of the required pressure for other subsystems in the system, such as the start / shutdown purge of the hot gas engine, the purge of the cold box and the overpressure discharge pipe, the air source for the pneumatic device of the hot gas engine igniter, the air source for charging the accumulator of the fresh water system, and the backup air source for the pneumatic ball valve of the cold box;

[0023] The working fluid system simulation components are used to provide the required working fluid helium for the Stirling cycle when the hot gas engine is running;

[0024] The simulated oxygen supply system module includes a cold box, an oxygen chimney, a liquid oxygen tank, and an oxygen flow meter; the liquid oxygen tank is used to store liquid oxygen, and the cold box pressurizes and vaporizes the liquid oxygen and provides it to the gas engine for combustion and the crew for breathing; the oxygen chimney is an integrated channel for all the outgoing pipelines of the oxygen supply system, and the closed space formed by the cold box and the oxygen chimney prevents possible oxygen leakage in the pipeline system from spreading to the cabin;

[0025] The analog monitoring module includes a box-mounted monitoring unit, an oxygen supply system monitoring unit, an auxiliary device monitoring unit, a system control console, a system power distribution cabinet, and a power supply cabinet;

[0026] The system control console includes a simulation signal generating device, which is composed of a computer and a display, and is used to simulate the operation of all sensors and actuators of the actual box body monitoring unit, the model box body monitoring unit, the oxygen supply system monitoring unit, and the auxiliary device monitoring unit.

[0027] A further improvement or preferred implementation scheme of the aforementioned power plant training simulation method, in which the steam generator control box is the core of the monitoring unit, and the field sensors belonging to the box-mounted module are collected through the steam generator interface box and the steam generator distribution box. At the same time, according to the steam generator logic control, control instructions are issued to the steam generator interface box, servo control box, etc. to drive the field equipment, thereby completing the start / stop and operation control of the steam generator unit.

[0028] A further improvement or preferred implementation scheme of the aforementioned power plant training simulation method, wherein the charger provides power for the electrical equipment in the box-mounted module and charges the battery; the battery provides a transient large current for the starting ignition current, and at the same time forms an uninterruptible power supply with the charger and fuse box, serving as a redundant power supply for the box-mounted module monitoring unit.

[0029] A further improvement or preferred implementation scheme of the aforementioned power unit training simulation method, the distribution box provides power distribution function for the box-mounted module monitoring unit, provides power for the charger, provides limited power for the box-mounted cooling fan motor, condensate discharge pump, and air degassing motor, and realizes drive and short circuit and overload safety protection; the fuse box controls the on / off power of the box-mounted module monitoring unit, distributes power and provides short circuit protection; the manual valves related to operation training in the system are equipped with valve position indicators, and the valve position status can be intuitively displayed in the simulation system during manual operation.

[0030] A further improvement or preferred implementation scheme of the above-mentioned power plant training simulation method, the main function of the servo control box is to receive the oil pump motor speed control signal output by the hot gas engine monitoring box, drive the oil pump motor by the driver to control the fuel flow, receive the oxygen flow control signal from the hot gas engine monitoring box, drive the oxygen flow regulating valve to control the oxygen flow, and send the oxygen valve position feedback signal to the hot gas engine monitoring box;

[0031] The machine-side monitor is mainly used for operation control and display of a single unit. The display screen runs the steam generator monitoring software to monitor the relevant data of a single unit. The chassis is equipped with buttons and indicator lights for on-site operation and debugging of the unit.

[0032] A further improvement or preferred implementation scheme of the aforementioned power plant training simulation method, the main function of the heat engine distribution box is to centralize the pressure and temperature sensor signals of the heat engine system and send them to the heat engine control box;

[0033] The main function of the gas generator interface box is to receive the control signal from the switch of the gas generator control box, drive the solenoid valves and igniters of the gas generator system to operate, and collect and send the switch signals such as the water level of the gas generator system, the operating status of the generator and the fault to the gas generator control box.

[0034] A further improvement or preferred implementation scheme of the above-mentioned power plant training simulation method, the oxygen supply control box is the core of the oxygen supply system monitoring unit, which controls the oxygen supply system pressurization, oxygen tank switching, overpressure discharge, cold box purge / discharge and other functions. Set up safety interlocks to prevent misoperation, emergency shutdown of the oxygen supply system and other logical functions;

[0035] The oxygen supply interface box mainly completes the driving and signal isolation and transfer functions of the actuators in the oxygen supply system.

[0036] The oxygen supply distribution box is mainly used to complete the functions of cold box internal signal access, isolation and transfer, and the shell has an explosion-proof mark.

[0037] The auxiliary device monitoring unit controls and drives the auxiliary machine, and monitors the main parameters of the auxiliary machine to realize functions such as alarm and safety protection.

[0038] The auxiliary control box has the functions of processing the signals collected by the distribution box, conversion, logic control, actuator driving and parameter output, etc., and uses honeycomb ventilation panels for ventilation and heat dissipation.

[0039] The auxiliary distribution box mainly completes the functions of accessing various on-site auxiliary machine signals and centrally transmitting them to the auxiliary control box, and at the same time transmitting the distribution of the auxiliary control box output signals.

[0040] The system display console is used for the centralized display of important data in the system, remote control and status display of the thermal turbine generator set, remote control and status simulation display of the oxygen supply system, and centralized sound and light alarm of the P subsystem, and has the function of storing historical data.

[0041] It also has the function of interacting with the virtual training system signal Ethernet. The monitoring data and alarms can be transmitted to the virtual training system in real time for viewing. It can also receive control instructions and teaching simulation plans from the virtual training system and send them to each controller for human-computer interaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the power plant training simulation process. DETAILED DESCRIPTION

[0043] The present invention is described in detail below in conjunction with specific embodiments.

[0044] A power plant training simulation method of the present invention is mainly used for virtual teaching and training of hot gas engine equipment. In a certain type of equipment, three hot gas engine chassis assemblies are installed in the ship. The three hot gas engines coordinate with each other to realize the stable operation of the ship's power system. The power system is also the focus of the ship control teaching process. In fact, due to the limitation of volume and complexity of control, the above-mentioned hot gas engine chassis assembly cannot be directly operated at the teaching site. Usually, only a separate hot gas engine chassis can be extracted for teaching demonstration. In order to strengthen students' understanding of the operating principle and control method of the power system with the hot gas engine chassis assembly as the core, the present application is based on the hot gas engine chassis assembly module to construct a power core by a hot gas engine actual assembly chassis and a simulated hot gas engine chassis assembly, and uses a simulation auxiliary module and a simulated oxygen supply system module to construct a power plant simulation training system.

[0045] Therefore, the power plant training simulation method of the present application first requires the construction of a hot air chassis assembly module, a simulation auxiliary module, a simulation oxygen supply system module, and a simulation monitoring module;

[0046] The hot air machine chassis module includes a hot air machine real chassis assembly and a hot air machine simulation chassis assembly.

[0047] The steam generator box assembly includes steam generator, generator, box assembly monitoring assembly

[0048] The hot gas engine is connected to the generator through an elastic coupling and fixed on the base of the vibration isolation device to finally form a hot gas engine actual installation box. The box monitoring component obtains the operating parameters of the hot gas engine actual installation box and controls the operation of the hot gas engine actual installation box; the hot gas engine simulation box is used to simulate the power output core of the power device formed in cooperation with the hot gas engine actual installation box, and output simulation parameter data;

[0049] The box-mounted monitoring components include a steam generator control box, a steam generator interface box, a steam generator distribution box, a fuse box, a servo control box, a machine-side monitor, a charger, a distribution box, and a generator control cabinet, which are used to simulate the control and monitoring of the steam generator set and provide necessary data recording, safety interlocking and alarm functions;

[0050] The gas turbine control box is the core of the monitoring unit. Through the gas turbine interface box and the gas turbine distribution box, it collects data from the on-site sensors of the box-mounted module. At the same time, according to the gas turbine logic control, it issues control instructions to the gas turbine interface box, servo control box, etc. to drive the on-site equipment and complete the start / stop and operation of the gas turbine unit.

[0051] The main function of the gas generator interface box is to receive the control signal from the switch of the gas generator control box, drive the solenoid valves and igniters of the gas generator system to operate, and collect and send the switch signals such as the water level of the gas generator system, the operating status of the generator and the fault to the gas generator control box.

[0052] The main function of the heat generator distribution box is to centralize the pressure, temperature and other sensor signals of the heat generator system and send them to the heat generator control box.

[0053] The manual valves related to operation training in the system are equipped with valve position indicators, and the valve position status can be intuitively displayed in the simulation system during manual operation;

[0054] The main function of the fuse box is to control the on / off power supply of the box-mounted module monitoring unit, distribute power supply and provide short-circuit protection.

[0055] The main functions of the servo control box are to receive the oil pump motor speed control signal output by the hot gas engine monitoring box, drive the oil pump motor to control the fuel flow, receive the oxygen flow control signal from the hot gas engine monitoring box, drive the oxygen flow regulating valve to control the oxygen flow, and send the oxygen valve position feedback signal to the hot gas engine monitoring box.

[0056] The machine-side monitor is mainly used for operation control and display of a single unit. The display screen runs the steam generator monitoring software to monitor the relevant data of a single unit. The chassis is equipped with buttons and indicator lights for on-site operation and debugging of the unit.

[0057] The charger provides power to the electrical equipment in the box-mounted module and charges the battery.

[0058] The battery provides a transient large current for the starting ignition current, and at the same time forms an uninterruptible power supply with the charger and fuse box, serving as a redundant power supply for the box-mounted module monitoring unit.

[0059] The distribution box provides power distribution function for the box-mounted module monitoring unit, provides power for the charger, provides limited power for the box-mounted cooling fan motor, condensate discharge pump, and air condenser motor, and realizes drive and short circuit and overload safety protection.

[0060] The simulation auxiliary modules include exhaust system real-installation simulation components, working fluid system real-installation simulation components, purge system real-installation simulation components, fresh water system real-installation simulation components, and fuel system real-installation simulation components;

[0061] The actual simulation components of the fuel system are used to provide the fuel and oxygen for the combustion of the hot gas engine through the fuel system and the oxygen supply system respectively. When the hot gas engine is working, the fuel transfer device transfers the fuel in the oil tank to the intermediate tank, and the daily fuel module supplies the high-pressure oil pump with appropriate pressure, and the high-pressure oil pump supplies it to the hot gas engine after pressurization. When the fuel system is running, the control system collects the flow signal of the fuel flow meter and controls the flow of the oil pump according to the unit power;

[0062] The oxygen supply system is equipped with simulation components, which are used to pressurize and vaporize the liquid oxygen in the liquid oxygen tank and then provide it to the gas turbine for combustion and the crew for breathing;

[0063] The vertical exhaust system simulation assembly is used to discharge the combustion products of the steam engine to the outside of the boat through the exhaust system. The exhaust system can refine the exhaust bubbles and absorb the CO2 in them through seawater, reducing the wake produced by the exhaust gas emission and improving the concealment of the ship.

[0064] The real-installation simulation component of the fresh water system is used to implement the steps of cooling the circulating fresh water with seawater outside the boat. Specifically, it is used to cool the fresh water delivered by the fresh water pump through the fresh water cooler, and then flow through the box air cooler, the heat generator in-machine cooler, the oil cooler, the working fluid compressor casing and the exhaust cooler, taking away the heat in the heat generator and the box body and then returning to the fresh water pump inlet. The other way flows through the water bath heater in the oxygen supply system to pressurize and heat up the liquid oxygen for gasification;

[0065] The actual simulation components of the purge system are used to provide necessary preparation conditions and shutdown protection for related equipment during the startup and shutdown stages of the hot gas turbine, and provide nitrogen of the required pressure for other subsystems in the system, such as the start / shutdown purge of the hot gas turbine, the purge of the cold box and the overpressure discharge pipe, the air source for the pneumatic device of the hot gas turbine igniter, the air source for charging the accumulator of the fresh water system, and the backup air source for the pneumatic ball valve of the cold box, etc.

[0066] The working fluid system simulation components are used to provide the required working fluid helium for the Stirling cycle when the hot gas engine is running;

[0067] The simulated oxygen supply system module includes a cold box, an oxygen chimney, a liquid oxygen tank, and an oxygen flow meter; the liquid oxygen tank is used to store liquid oxygen, and the cold box pressurizes and vaporizes the liquid oxygen and provides it to the gas engine for combustion and the crew for breathing; the oxygen chimney is an integrated channel for all the outgoing pipelines of the oxygen supply system, and the closed space formed by the cold box and the oxygen chimney prevents possible oxygen leakage in the pipeline system from spreading to the cabin;

[0068] Analog monitoring module; including box-mounted monitoring unit, oxygen supply system monitoring unit, auxiliary device monitoring unit, system control console, system power distribution cabinet, power supply cabinet;

[0069] The system control console includes an analog signal generating device, including a box-mounted body monitoring unit, a model box-mounted body monitoring unit, an oxygen supply system monitoring unit, an auxiliary device monitoring unit, and a system display console;

[0070] The oxygen supply system monitoring unit mainly realizes the functions of logical control of the oxygen supply system, monitoring and alarming of the main parameters of the oxygen supply system, safety protection and fault diagnosis, etc. It mainly consists of an oxygen supply control box, an oxygen supply interface box and an oxygen supply distribution box.

[0071] The oxygen supply control box is the core of the oxygen supply system monitoring unit, which controls the oxygen supply system pressurization, oxygen tank switching, overpressure discharge, cold box purge / discharge and other functions. Set up safety interlocks to prevent misoperation, emergency shutdown of the oxygen supply system and other logical functions;

[0072] The oxygen supply interface box mainly completes the driving and signal isolation and transfer functions of the actuators in the oxygen supply system.

[0073] The oxygen supply distribution box is mainly used to complete the functions of cold box internal signal access, isolation and transfer, and the shell has an explosion-proof mark.

[0074] The auxiliary device monitoring unit controls and drives the auxiliary machine, and monitors the main parameters of the auxiliary machine to realize functions such as alarm and safety protection.

[0075] The auxiliary control box has the functions of processing the signals collected by the distribution box, conversion, logic control, actuator driving and parameter output, etc., and uses honeycomb ventilation panels for ventilation and heat dissipation.

[0076] The auxiliary distribution box mainly completes the functions of accessing various on-site auxiliary machine signals and centrally transmitting them to the auxiliary control box, and at the same time transmitting the distribution of the auxiliary control box output signals.

[0077] The system display and control console is used for the centralized display of important data in the system, remote control and status display of the steam turbine generator set, remote control and status simulation display of the oxygen supply system, and centralized sound and light alarms of the P subsystem. It has the function of storing historical data and interacting with the virtual training system signal Ethernet. The monitoring data and alarms can be transmitted to the virtual training system in real time for viewing, and the control instructions and teaching simulation plans of the virtual training system can be received and sent to each controller for human-computer interaction.

[0078] like Figure 1 As shown, it is the core flow chart of the power plant training simulation of the present invention, which includes the following steps:

[0079] STP1, confirm that the "power switch of the power box" is closed; confirm that the power switch of the system display console is turned on, and the network power supply and monitoring computer power supply are turned on;

[0080] STP2, check the pressure of air and purge pipeline valves and pressure reducing valves; pressurize the liquid oxygen tank; open the ball valves in and out of the fresh water system, start the fresh water pump, and supply liquid oxygen;

[0081] STP3, open the fuel system valve, simulate the start-up of the fuel transfer device and the daily fuel supply module; open the nitrogen inlet ball valve and the working fluid bottle valve; confirm that the exhaust system valve is normal, and check that the pressure of each pressure reducing valve is normal;

[0082] STP4, the monitoring device of the box is turned on, the load switch of the generator control cabinet is turned on; the sound insulation door of the box is closed; simulate the following operations: the fire box is running; the air purifier is turned on, and the cooling fan is set to "program control" state;

[0083] STP5. Set the auxiliary machine "manual / automatic" switch to the "automatic" position; press the "standby" button on the display console; reset the heat engine;

[0084] STP6, after the vehicle is ready, press the "Start / Stop" button to start the unit;

[0085] STP7, increase or decrease power after each gear is stable;

[0086] STP8, close the oxygen and fuel inlet and outlet valves; close the nitrogen inlet module valve after stopping the purge; close the working fluid bottle valve after stopping; turn off the fresh water pump after the ejector temperature is lower than the preset temperature or the unit stops for a preset time; turn off the machine-side monitor, fuse box and charger.

[0087] In this embodiment, the heat machine chassis module is provided with two operation modes: machine side operation and display console remote control operation. The two operation modes can be switched by a switch located on the machine side monitor. When the switch is placed in machine side operation, the start / stop, emergency stop, reset and increase / decrease power operations of the unit can be realized at the machine side; when the switch is placed in remote control operation mode, the start / stop, emergency stop, reset and increase / decrease power operations of the unit can be realized on the display console.

[0088] Based on two control methods, students can quickly switch between practical simulation and virtual training to improve teaching efficiency.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A power plant training simulation method, characterized in that: Based on the hot air chassis module, the simulation auxiliary module, the simulation oxygen supply system module and the simulation monitoring module, the following steps are included: STP1, confirm that the "power switch of the power box" is closed; confirm that the power switch of the system display console is turned on, and the network power supply and monitoring computer power supply are turned on; STP2, air, purge pipeline valve, pressure reducing valve pressure check; liquid oxygen tank pressurized to; Open the ball valves for the fresh water system in and out of the tank, start the fresh water pump, and start liquid-phase oxygen supply; STP3, open the fuel system valve, simulate the start-up of the fuel transfer device and the daily fuel supply module; open the nitrogen inlet ball valve and the working fluid bottle valve; confirm that the exhaust system valve is normal, and check that the pressure of each pressure reducing valve is normal; STP4, the monitoring device of the box body is turned on, the load switch of the generator control cabinet is turned on; the sound insulation door of the box body is closed; Simulate the following operations: the fire extinguisher is running; the air purifier is turned on, and the cooling fan is set to "program control"; STP5. Set the auxiliary machine "manual / automatic" switch to "automatic"; press the "standby" button on the display console; and reset the heater; STP6. After the vehicle is ready, press the "Start / Stop" button to start the engine; STP7, increase or decrease power after each gear is stable; STP8, close the oxygen supply and fuel inlet and outlet valves; close the nitrogen inlet module valve after stopping the purge; close the working fluid bottle valve after stopping; turn off the fresh water pump after the ejector temperature is lower than the preset temperature or the unit stops for a preset time; turn off the monitor, fuse box and charger beside the machine The heat engine chassis module includes a heat engine real box assembly and a heat engine simulation box assembly; the heat engine real box assembly includes a heat engine, a generator, a box assembly monitoring assembly The hot gas engine is connected to the generator through an elastic coupling and fixed on the base of the vibration isolation device to finally form a hot gas engine actual installation box. The box monitoring component obtains the operating parameters of the hot gas engine actual installation box and controls the operation of the hot gas engine actual installation box; the hot gas engine simulation box is used to simulate the power output core of the power device formed in cooperation with the hot gas engine actual installation box, and output simulation parameter data; The box-mounted monitoring components include a steam generator control box, a steam generator interface box, a steam generator distribution box, a fuse box, a servo control box, a machine-side monitor, a charger, a distribution box, and a generator control cabinet, which are used to simulate the control and monitoring of the steam generator set and provide necessary data recording, safety interlocking and alarm functions; The simulation auxiliary modules include exhaust system real-installation simulation components, working fluid system real-installation simulation components, purge system real-installation simulation components, fresh water system real-installation simulation components, and fuel system real-installation simulation components; The actual simulation components of the fuel system are used to provide the fuel and oxygen for the combustion of the hot gas engine through the fuel system and the oxygen supply system respectively; when the hot gas engine is working, the fuel transfer device transfers the fuel in the oil tank to the intermediate tank, and the daily fuel module supplies the high-pressure oil pump with appropriate pressure, and the high-pressure oil pump supplies the hot gas engine after pressurization; when the fuel system is running, the control system collects the flow signal of the fuel flow meter and controls the flow of the oil pump according to the unit power; The oxygen supply system is equipped with simulation components, which are used to pressurize and vaporize the liquid oxygen in the liquid oxygen tank and then provide it to the gas turbine for combustion and the crew for breathing; The exhaust system simulation assembly is used to discharge the combustion products of the steam engine to the outside of the boat through the exhaust system. The exhaust system can refine the exhaust bubbles and absorb the CO2 in them through seawater, reducing the wake produced by the exhaust gas and improving the concealment of the ship. The real-installation simulation component of the fresh water system is used to implement the steps of cooling the circulating fresh water with seawater outside the boat. Specifically, it is used to cool the fresh water delivered by the fresh water pump through the fresh water cooler, and then flow through the box air cooler, the heat generator in-machine cooler, the oil cooler, the working fluid compressor casing and the exhaust cooler, take away the heat in the heat generator and the box body, and then return to the fresh water pump inlet; the other way flows through the water bath heater in the oxygen supply system to pressurize and heat up the liquid oxygen for gasification; The actual simulation components of the purge system are used to provide necessary preparation conditions and shutdown protection for related equipment during the startup and shutdown stages of the hot gas engine, and provide nitrogen with the required pressure for other subsystems in the system; the actual simulation components of the working fluid system are used to provide the required working fluid helium for the Stirling cycle when the hot gas engine is running; The simulated oxygen supply system module includes a cold box, an oxygen chimney, a liquid oxygen tank, and an oxygen flow meter; the liquid oxygen tank is used to store liquid oxygen, and the cold box pressurizes and vaporizes the liquid oxygen and provides it to the gas engine for combustion and the crew for breathing; the oxygen chimney is an integrated channel for all the outgoing pipelines of the oxygen supply system, and the closed space formed by the cold box and the oxygen chimney prevents possible oxygen leakage in the pipeline system from spreading to the cabin; The analog monitoring module includes a box-mounted monitoring unit, an oxygen supply system monitoring unit, an auxiliary device monitoring unit, a system control console, a system power distribution cabinet, and a power supply cabinet; The system control console includes a simulation signal generating device, which is composed of a computer and a display, and is used to simulate the operation of all sensors and actuators of the actual box body monitoring unit, the model box body monitoring unit, the oxygen supply system monitoring unit, and the auxiliary device monitoring unit.

2. The power plant training simulation method according to claim 1, characterized in that: The steam generator control box is the core of the monitoring unit. Through the steam generator interface box and the steam generator distribution box, it collects data from the on-site sensors of the box-mounted module. At the same time, according to the steam generator logic control, it issues control instructions to the steam generator interface box and the servo control box to drive the on-site equipment and complete the start / stop and operation control of the steam generator unit.

3. The power plant training simulation method according to claim 1, characterized in that: The charger provides power for the electrical equipment of the box-mounted module and charges the battery; the battery provides a transient large current for the starting ignition current, and at the same time forms an uninterruptible power supply with the charger and fuse box, serving as a redundant power supply for the box-mounted module monitoring unit.

4. The power plant training simulation method according to claim 1, characterized in that: The distribution box provides power distribution function for the box-mounted module monitoring unit, provides power for the charger, provides limited power for the box-mounted cooling fan motor, condensate discharge pump, and air condenser motor, and realizes drive and short-circuit and overload safety protection; the fuse box controls the on / off power of the box-mounted module monitoring unit, distributes power and provides short-circuit protection; the manual valves related to operation training in the system are equipped with valve position indicators, and the valve position status can be intuitively displayed in the simulation system during manual operation.

5. The power plant training simulation method according to claim 1, characterized in that: The servo control box receives the oil pump motor speed control signal output by the hot gas engine monitoring box, and the driver drives the oil pump motor to control the fuel flow, receives the oxygen flow control signal from the hot gas engine monitoring box, drives the oxygen flow regulating valve to control the oxygen flow, and sends the oxygen valve position feedback signal to the hot gas engine monitoring box; The machine-side monitor controls and displays the operation of a single unit. The display screen runs the steam generator monitoring software to monitor the relevant data of a single unit. The chassis is equipped with buttons and indicator lights for on-site operation and debugging of the unit.

6. The power plant training simulation method according to claim 1, characterized in that: The heat generator distribution box collects the pressure and temperature sensor signals of the heat generator system and sends them to the heat generator control box; The gas generator interface box receives the control signal from the switch of the gas generator control box, drives the solenoid valves and igniters of the gas generator system to operate, and collects and sends the water level of the gas generator system, the operating status of the generator and the fault switch quantity signals to the gas generator control box.

7. The power plant training simulation method according to claim 1, characterized in that: The oxygen supply control box is the core of the oxygen supply system monitoring unit, which controls the oxygen supply system pressurization, oxygen tank switching, overpressure discharge, cold box purge / discharge functions; it also sets safety interlocks to prevent misoperation and the oxygen supply system emergency shutdown logic function; The oxygen supply interface box completes the driving and signal isolation transfer functions of the actuators in the oxygen supply system; The oxygen supply distribution box completes the signal access, isolation and transfer functions inside the cold box, and the shell has an explosion-proof mark; The auxiliary device monitoring unit controls and drives the auxiliary machine, and monitors the auxiliary machine parameters to realize alarm and safety protection functions; The auxiliary control box has the functions of processing the signals collected by the distribution box, conversion, logic control, actuator driving and parameter output, and uses honeycomb ventilation panels for ventilation and heat dissipation; The auxiliary distribution box completes the distribution function of connecting various on-site auxiliary machine signals and centrally transmitting them to the auxiliary control box, and at the same time transmits the output signals of the auxiliary control box; The system display console is used for centralized display of important data in the system, remote control and status display of the thermal generator set, remote control and status simulation display of the oxygen supply system, and centralized sound and light alarm of the P subsystem, and has the function of storing historical data; It also has the function of interacting with the virtual training system signal Ethernet. The monitoring data and alarms can be transmitted to the virtual training system in real time for viewing. It can also receive control instructions and teaching simulation plans from the virtual training system and send them to each controller for human-computer interaction.

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