Pump spoon position instruction obtaining method and related device

Abstract

The invention discloses a pump spoon position instruction obtaining method and a related device, and relates to the field of power generation and water supply, and the method comprises the following steps: monitoring an engine power value, a pump spoon position of a currently running first water supply pump, a state of the first water supply pump and a main steam flow in real time; if the state of the first feed pump is a fault state; based on the engine power value, the pump spoon position of the first water feeding pump, the main steam flow, a preset first constant pump spoon position and a preset second constant pump spoon position, a pump spoon position instruction corresponding to the second water feeding pump is determined; and sending a pump spoon position instruction of the second feed pump to the second feed pump. The engine power value, the pump spoon position of the currently running first water feeding pump, the state of the first water feeding pump and the main steam flow are monitored in real time, and therefore the pump spoon position instruction corresponding to the second water feeding pump can be generated in real time; after the second water feeding pump is started, corresponding operation can be executed immediately based on the pump spoon position instruction corresponding to the second water feeding pump, so that water of corresponding tonnage can be output in time, and disturbance of the water level is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of power generation and water supply, and in particular to a method for obtaining a pump scoop position instruction and a related device. Background Art

[0002] Electric feed water pumps and steam-driven feed water pumps are generally configured in the power generation water supply system. If the steam-driven feed water pump trips, the electric feed water pump will be automatically started, that is, the steam-driven feed water pump will be switched to the electric feed water pump.

[0003] During the research process, the applicant found that after switching from a steam-driven water supply pump to an electric water supply pump, the switched electric water supply pump could not obtain the pump scoop position instruction in time, and thus could not output the corresponding tonnage of water in time, resulting in water level disturbance. Summary of the invention

[0004] In view of the above problems, the present application provides a method and a related device for obtaining a pump scoop position instruction to achieve the purpose of reducing water level disturbance. The specific scheme is as follows:

[0005] The first aspect of the present application provides a method for obtaining a pump spoon position instruction, comprising:

[0006] Real-time monitoring of the engine power value, the pump scoop position of the currently running first feedwater pump, the state of the first feedwater pump and the main steam flow rate;

[0007] If the state of the first feedwater pump is a fault state; based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, the preset first constant pump scoop position and the preset second constant pump scoop position, determine the pump scoop position instruction corresponding to the second feedwater pump; the second feedwater pump is the feedwater pump other than the first feedwater pump in the power generation feedwater system;

[0008] A pump scoop position instruction of the second water supply pump is sent to the second water supply pump.

[0009] In a possible implementation, the first water supply pump is a steam-driven water supply pump, the second water supply pump includes a master electric water supply pump and a slave electric water supply pump, and the pump scoop position instruction of the second water supply pump includes a first pump scoop position instruction of the master electric water supply pump and a second pump scoop position instruction of the slave electric water supply pump;

[0010] The step of determining the pump scoop position instruction corresponding to the second feedwater pump based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, a preset first constant pump scoop position and a preset second constant pump scoop position comprises:

[0011] If the state of the steam-driven feedwater pump is a fault state and the engine power value before the fault of the steam-driven feedwater pump is greater than the preset power, obtain the first candidate pump scoop position corresponding to the main steam flow in the first preset function; the abscissa of the first preset function is the main steam flow, and the ordinate is the pump scoop position;

[0012] If the state of the main electric feedwater pump is non-faulty and the second preset electric pump interlocking rule does not satisfy the second electric pump condition and the first preset steam pump pumping rule satisfies the first steam pump condition, the first pump position instruction including the first candidate pump position is obtained; the second electric pump condition is that the main electric feedwater pump is in operation and the slave electric feedwater pump is in interlocking state; the first steam pump condition is that the steam-driven feedwater pump is in operation and the main electric feedwater pump is in interlocking state;

[0013] If the status of the slave electric water supply pump is non-faulty and the first preset electric pump interlocking rule does not satisfy the first electric pump condition and the second preset steam pump head rule satisfies the second steam pump condition, obtain the second pump scoop position instruction including the first candidate pump scoop position; the first electric pump condition is that the slave electric water supply pump is in running state and the master electric water supply pump is in interlocking state; the second steam pump condition is that the steam-driven water supply pump is in running state and the slave electric water supply pump is in interlocking state.

[0014] In a possible implementation, the first feedwater pump is a steam-driven feedwater pump, the second feedwater pump is the main electric feedwater pump, the pump scoop position instruction of the second feedwater pump includes a third pump scoop position instruction of the main electric feedwater pump, and the step of determining the pump scoop position instruction corresponding to the second feedwater pump based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, a preset first constant pump scoop position, and a preset second constant pump scoop position includes:

[0015] If the state of the steam-driven feedwater pump is a fault state and the engine power value before the steam-driven feedwater pump trips is less than or equal to the preset power, obtain the second candidate pump scoop position corresponding to the main steam flow in the second preset function; the abscissa of the second preset function is the main steam flow, and the ordinate is the pump scoop position;

[0016] If the first preset steam pump pumping rule satisfies the first steam pump condition and the second preset electric pump interlocking rule does not satisfy the second electric pump condition and the status of the main electric water supply pump is in a non-fault state, obtain the third pump position instruction containing the second candidate pump position; the second electric pump condition is that the main electric water supply pump is in an operating state and the slave electric water supply pump is in an interlocking state; the first steam pump condition is that the status of the steam-driven water supply pump is in a fault state and the main electric water supply pump is in an interlocking state.

[0017] In a possible implementation, the first feedwater pump is a master electric feedwater pump, the second feedwater pump is a slave electric feedwater pump, the pump scoop position instruction of the second feedwater pump includes a fourth pump scoop position instruction of the slave electric feedwater pump, and the step of determining the pump scoop position instruction corresponding to the second feedwater pump based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, a preset first constant pump scoop position, and a preset second constant pump scoop position includes:

[0018] If the first preset electric pump interlocking rule does not meet the first electric pump condition and the status of the slave electric water pump is in a non-fault state and the second preset steam pump head rule does not meet the second steam pump condition, obtain a fourth pump scoop position instruction including the pump scoop position of the main electric water pump; the first electric pump condition is that the slave electric water pump is in an operating state and the master electric water pump is in an interlocking state; the second steam pump condition is that the steam-driven water pump is in an operating state and the slave electric water pump is in an interlocking state.

[0019] In a possible implementation, the first feedwater pump is a slave electric feedwater pump, the second feedwater pump is a master electric feedwater pump, the pump scoop position instruction of the second feedwater pump includes a fifth pump scoop position instruction of the master electric feedwater pump, and the step of determining the pump scoop position instruction corresponding to the second feedwater pump based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, a preset first constant pump scoop position and a preset second constant pump scoop position includes:

[0020] If the second preset electric pump interlocking rule does not satisfy the second electric pump condition and the status of the main electric water supply pump is in a non-fault state and the first preset steam pump head rule does not satisfy the first steam pump condition and the first preset electric pump interlocking rule satisfies the first electric pump condition, obtain the fifth pump scoop position instruction including the pump scoop position of the slave electric water supply pump; the first steam pump condition is that the steam-driven water supply pump is in an operating state and the main electric water supply pump is in an interlocking state; the second electric pump condition is that the main electric water supply pump is in an operating state and the slave electric water supply pump is in an interlocking state; the first electric pump condition is that the slave electric water supply pump is in an operating state and the main electric water supply pump is in an interlocking state.

[0021] In a possible implementation, the method further includes:

[0022] If the state of the first feedwater pump is a non-fault state, determining a pump scoop position instruction corresponding to the first feedwater pump based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, a preset first constant pump scoop position and a preset second constant pump scoop position;

[0023] Send a pump scoop position instruction corresponding to the first water supply pump to the first water supply pump.

[0024] In a possible implementation, the first feedwater pump is a steam-driven feedwater pump. If the state of the first feedwater pump is a non-fault state, based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, a preset first constant pump scoop position, and a preset second constant pump scoop position, determining the pump scoop position instruction corresponding to the first feedwater pump includes:

[0025] If the state of the steam-driven feedwater pump is a non-fault state and the engine power value is greater than the preset power, a first candidate pump scoop position corresponding to the main steam flow in a first preset function is obtained; the abscissa of the first preset function is the main steam flow, and the ordinate is the pump scoop position;

[0026] If the state of the steam-driven feedwater pump is a non-fault state and the engine power value is less than or equal to the preset power, obtain a second candidate pump scoop position corresponding to the main steam flow in a second preset function; the abscissa of the second preset function is the main steam flow, and the ordinate is the pump scoop position;

[0027] If the first preset steam pump head rule satisfies the first steam pump condition and the second preset electric pump interlocking rule does not satisfy the second electric pump condition and the status of the main electric water supply pump is in a non-fault state, obtain the pump spoon position instruction corresponding to the first water supply pump that includes the first candidate pump spoon position or the second candidate pump spoon position; the second electric pump condition is that the main electric water supply pump is in an operating state and the slave electric water supply pump is in an interlocking state; the first steam pump condition is that the steam-driven water supply pump is in an operating state and the main electric water supply pump is in an interlocking state.

[0028] In a possible implementation, the first feedwater pump is a main motor feedwater pump. If the state of the first feedwater pump is a non-fault state, based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, a preset first constant pump scoop position and a preset second constant pump scoop position, determining the pump scoop position instruction corresponding to the first feedwater pump includes:

[0029] If the second preset electric pump interlocking rule meets the second electric pump condition and the status of the main electric water supply pump is in a non-fault state, obtain the pump scoop position instruction corresponding to the main electric water supply pump including the first constant pump scoop position; the second electric pump condition is that the main electric water supply pump is in an operating state and the slave electric water supply pump is in an interlocking state.

[0030] In a possible implementation, the first feedwater pump is a slave motor feedwater pump. If the state of the first feedwater pump is a non-fault state, based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, a preset first constant pump scoop position, and a preset second constant pump scoop position, determining the pump scoop position instruction corresponding to the first feedwater pump includes:

[0031] If the first preset electric pump interlocking rule satisfies the first electric pump condition and the status of the slave electric water pump is in a non-fault state, obtain the pump scoop position instruction corresponding to the slave electric water pump including the second constant pump scoop position; the first electric pump condition is that the slave electric water pump is in an operating state and the master electric water pump is in an interlocking state.

[0032] A second aspect of the present application provides a pump spoon position instruction acquisition device, comprising:

[0033] A first monitoring module is used to monitor in real time the engine power value, the pump position of the currently running first feedwater pump, the state of the first feedwater pump and the main steam flow rate;

[0034] A first determination module is used for determining, if the state of the first feedwater pump is a fault state, a pump scoop position instruction corresponding to a second feedwater pump based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, a preset first constant pump scoop position and a preset second constant pump scoop position; the second feedwater pump is a feedwater pump other than the first feedwater pump in the power generation feedwater system;

[0035] The first sending module is used to send a pump scoop position instruction of the second water supply pump to the second water supply pump.

[0036] A third aspect of the present application provides a computer program product, including computer-readable instructions. When the computer-readable instructions are executed on an electronic device, the electronic device implements the pump spoon position instruction acquisition method of the first aspect or any implementation of the first aspect.

[0037] A fourth aspect of the present application provides an electronic device, comprising at least one processor and a memory connected to the processor, wherein:

[0038] The memory is used to store computer programs;

[0039] The processor is used to execute the computer program so that the electronic device can implement the pump spoon position instruction acquisition method of the above-mentioned first aspect or any implementation manner of the first aspect.

[0040] A fifth aspect of the present application provides a computer storage medium, which carries one or more computer programs. When the one or more computer programs are executed by an electronic device, the electronic device can implement the pump spoon position instruction acquisition method of the above-mentioned first aspect or any implementation of the first aspect.

[0041] By means of the above technical scheme, the present application provides a method for obtaining a pump scoop position instruction, which monitors the engine power value, the pump scoop position of the currently running first feedwater pump, the state of the first feedwater pump and the main steam flow in real time; if the state of the first feedwater pump is a fault state; based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, the preset first constant pump scoop position and the preset second constant pump scoop position, the pump scoop position instruction corresponding to the second feedwater pump is determined; the pump scoop position instruction of the second feedwater pump is sent to the second feedwater pump. The present application monitors the engine power value, the pump scoop position of the currently running first feedwater pump, the state of the first feedwater pump and the main steam flow in real time, so that the pump scoop position instruction corresponding to the second feedwater pump can be generated in real time; after the second feedwater pump is started, the corresponding operation can be performed immediately based on the pump scoop position instruction corresponding to the second feedwater pump, so that the corresponding tonnage of water can be output in time to reduce the disturbance of the water level. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and the originals and elements are not necessarily drawn to scale.

[0043] Figure 1 A schematic diagram of the architecture of the power generation and water supply system provided for this application;

[0044] Figure 2 A schematic diagram of an optional hardware structure of the host computer 100 provided in this application;

[0045] Figure 3 A flow chart of a method for obtaining a pump scoop position instruction provided in this application;

[0046] Figure 4 A schematic diagram of an implementation method of the software structure provided in this application;

[0047] Figure 5 A schematic diagram of an implementation method of the first preset function provided in this application;

[0048] Figure 6 A schematic diagram of an implementation method of the second preset function provided in the present application;

[0049] Figure 7 A schematic diagram of the structure of a pump spoon position instruction acquisition device provided in this application;

[0050] Figure 8 A schematic diagram of the structure of the electronic device provided in this application. DETAILED DESCRIPTION

[0051] The following describes the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. The terms used in the implementation method section of the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application.

[0052] The embodiments of the present application are described below in conjunction with the accompanying drawings. Those skilled in the art will appreciate that, with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0053] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and need not be used to describe a specific order or sequential order. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, which is only to describe the distinction mode adopted by the objects of the same attributes when describing in the embodiments of the present application. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, so that the process, method, system, product or equipment comprising a series of units need not be limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0054] See also Figure 1 , Figure 1 The schematic diagram of the structure of a power generation water supply system is shown. The power generation water supply system may include: a host computer 100, a main electric water supply pump 200, a slave electric water supply pump 300 and a steam-driven water supply pump 400; illustratively, the power generation water supply system may also include: a boiler, a deaerator, a heat recovery system, a pipeline and valve system, a water treatment device, and an engine.

[0055] Exemplarily, the host computer 100 can communicate with the master electric feedwater pump 200 , the slave electric feedwater pump 300 and the pneumatic feedwater pump 400 via serial communication or digital communication network or fieldbus technology or wireless communication or HART (Highway Addressable Remote Transducer) protocol.

[0056] For example, the host computer 100 refers to a monitoring computer in the control system, which is responsible for monitoring and controlling the entire power generation water supply system. The host computer can realize automatic management of the start, stop, speed control and other operations of the water supply pump (main electric water supply pump 200, slave electric water supply pump 300 or steam-driven water supply pump 400), as well as real-time monitoring of the operating status of the entire system.

[0057] For example, the HART protocol is a widely used industrial communication protocol, which can superimpose FSK (frequency shift keying) signals on 4mA to 20mA analog signals to achieve simultaneous transmission of analog signals and digital signals. In this communication mode, the host computer can issue pump position instructions that comply with the HART protocol to the main electric water supply pump 200 or the slave electric water supply pump 300 or the steam-driven water supply pump 400. The main electric water supply pump 200 or the slave electric water supply pump 300 or the steam-driven water supply pump 400 performs corresponding operations according to the received pump position instructions, and can also send the pump position and status of the main electric water supply pump or the slave electric water supply pump or the steam-driven water supply pump to the host computer.

[0058] For example, the host computer exchanges data with the master electric water supply pump, the slave electric water supply pump, and the steam-driven water supply pump through a serial communication interface. This communication method allows the host computer to send pump position instructions to the master electric water supply pump, the slave electric water supply pump, or the steam-driven water supply pump, and receive pump position and status from the master electric water supply pump, the slave electric water supply pump, or the steam-driven water supply pump.

[0059] For example, the host computer may communicate with the master electric feedwater pump, the slave electric feedwater pump and the steam-driven feedwater pump respectively through a digital communication network (such as Ethernet). This communication method can provide faster data transmission speed and higher reliability.

[0060] For example, fieldbus technologies such as Profibus and Modbus are also used for communication between the host computer and the water pump in the power generation and water supply system. These technologies allow multiple devices to be connected to the same bus to achieve centralized data management and control.

[0061] For example, the host computer may communicate with the master electric feed water pump, the slave electric feed water pump and the steam-driven feed water pump respectively through wireless communication technology, especially in situations where wiring is difficult.

[0062] Next describe Figure 1 The product form of the middle and upper computer 100;

[0063] The host computer 100 in the embodiment of the present application can be a mobile phone, a tablet computer, a wearable device, a vehicle-mounted device, an augmented reality (AR) / virtual reality (VR) device, a laptop computer, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (PDA), etc., and the embodiment of the present application does not impose any limitation on this.

[0064] Figure 2An optional hardware structure diagram of the host computer 100 is shown.

[0065] refer to Figure 2 As shown, the host computer 100 may include a radio frequency unit 110, a memory 120, an input unit 130, a display unit 140, a camera 150 (optional), an audio circuit 160 (optional), a speaker 161 (optional), a microphone 162 (optional), an earphone jack 163 (optional), a processor 170, an external interface 180, a power supply 190 and other components. Those skilled in the art will understand that Figure 2 This is merely an example of a host computer and does not constitute a limitation on the host computer. The host computer may include more or fewer components than shown in the figure, or a combination of certain components, or different components.

[0066] The input unit 130 can be used to receive input digital or character information, and generate key signal input related to the user settings and function control of the host computer. Specifically, the input unit 130 may include a touch screen 131 (optional) and / or other input devices 132. The touch screen 131 can collect the user's touch operations on or near it (such as the user's operation on or near the touch screen using any suitable object such as fingers, joints, stylus, etc.), and drive the corresponding connection device according to a pre-set program. The touch screen can detect the user's touch action on the touch screen, convert the touch action into a touch signal and send it to the processor 170, and can receive and execute the command sent by the processor 170; the touch signal at least includes contact point coordinate information. The touch screen 131 can provide an input interface and an output interface between the host computer 100 and the user. In addition, the touch screen can be implemented using multiple types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch screen 131, the input unit 130 can also include other input devices. Specifically, other input devices 132 may include, but are not limited to, one or more of a physical keyboard, function keys (such as a volume control key, a switch key, etc.), a trackball, a mouse, a joystick, and the like.

[0067] Among them, the input device 132 can receive input data and the like.

[0068] The display unit 140 can be used to display information input by the user or information provided to the user, various menus of the host computer 100, interactive interfaces, file display and / or playback of any multimedia file. In the embodiment of the present application, the display unit 140 can be used to display interfaces, processing results, etc.

[0069] The memory 120 can be used to store instructions and data. The memory 120 can mainly include an instruction storage area and a data storage area. The data storage area can store various data, such as multimedia files, texts, etc.; the instruction storage area can store software units such as operating systems, applications, instructions required for at least one function, or their subsets and extensions. It can also include a non-volatile random access memory; provide the processor 170 with hardware, software and data resources including management of computing and processing equipment, and support control software and applications. It is also used for the storage of multimedia files, and the storage of running programs and applications.

[0070] The processor 170 is the control center of the host computer 100. It uses various interfaces and lines to connect various parts of the entire host computer 100. By running or executing instructions stored in the memory 120 and calling data stored in the memory 120, it executes various functions of the host computer 100 and processes data, thereby controlling the host computer device as a whole. Optionally, the processor 170 may include one or more processing units; preferably, the processor 170 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application program, and the modem processor mainly processes wireless communication. It is understandable that the above-mentioned modem processor may not be integrated into the processor 170. In some embodiments, the processor, memory, can be implemented on a single chip, and in some embodiments, they can also be implemented separately on independent chips. The processor 170 can also be used to generate corresponding operation control signals, send them to the corresponding components of the computing and processing equipment, read and process data in the software, especially read and process data and programs in the memory 120, so that each functional module therein performs corresponding functions, thereby controlling the corresponding components to act according to the requirements of the instructions.

[0071] Among them, the memory 120 can be used to store software codes related to the pump spoon position instruction acquisition method, the processor 170 can execute the steps of the pump spoon position instruction acquisition method, and can also schedule other units (such as the above-mentioned input unit 130 and display unit 140) to achieve corresponding functions.

[0072] The radio frequency unit 110 (optional) can be used for receiving and sending information or receiving and sending signals during a call, for example, after receiving the downlink information of the base station, it is sent to the processor 170 for processing; in addition, the designed uplink data is sent to the base station. Generally, the RF circuit includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier (Low Noise Amplifier, LNA), a duplexer, etc. In addition, the radio frequency unit 110 can also communicate with network devices and other devices through wireless communication. The wireless communication can use any communication standard or protocol, including but not limited to Global System of Mobile communication (Global System of Mobile communication, GSM), General Packet Radio Service (General Packet Radio Service, GPRS), Code Division Multiple Access (Code Division Multiple Access, CDMA), Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA), Long Term Evolution (Long Term Evolution, LTE), email, Short Messaging Service (SMS), etc.

[0073] In this embodiment of the present application, the RF unit 110 can send data to the server 200 and receive processing results sent by the server 200.

[0074] It should be understood that the radio frequency unit 110 is optional and can be replaced by other communication interfaces, such as a network port.

[0075] The host computer 100 also includes a power supply 190 (such as a battery) for supplying power to various components. Preferably, the power supply can be logically connected to the processor 170 through a power management system, so that the power management system can manage charging, discharging, and power consumption.

[0076] The host computer 100 also includes an external interface 180 , which may be a standard Micro USB interface or a multi-pin connector, and may be used to connect the host computer 100 to communicate with other devices, or may be used to connect a charger to charge the host computer 100 .

[0077] Although not shown, the host computer 100 may also include a flashlight, a wireless fidelity (WiFi) module, a Bluetooth module, sensors with different functions, etc., which will not be described in detail here. Some or all of the methods described below can be applied to Figure 2 In the host computer 100 shown.

[0078] It should be understood that the above-mentioned host computer 100 can be a centralized or distributed device, and the processor in the above-mentioned host computer 100 can be a hardware circuit (such as an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), a general-purpose processor, a digital signal processor (DSP), a microprocessor or a microcontroller, etc.), or a combination of these hardware circuits. For example, the processor can be a hardware system with an instruction execution function, such as a CPU, DSP, etc., or a hardware system without an instruction execution function, such as an ASIC, FPGA, etc., or a combination of the above-mentioned hardware systems without an instruction execution function and hardware systems with an instruction execution function.

[0079] Reference Figure 3 , Figure 3 A flow chart of a method for obtaining a pump scoop position instruction provided in an embodiment of the present application is shown in FIG. Figure 3 As shown, a method for obtaining a pump spoon position instruction provided in an embodiment of the present application may include steps S301 to S303, and these steps are described in detail below.

[0080] Step S301: real-time monitoring of the engine power value, the pump position of the currently running first feedwater pump, the state of the first feedwater pump and the main steam flow rate.

[0081] Exemplarily, the host computer 100 collects the operating data of the engine in real time through sensors connected to the engine, including key parameters such as torque and rotational speed, and the engine power value can be calculated through the engine operating data.

[0082] Exemplarily, the main steam flow rate refers to the amount of superheated steam generated by the boiler passing through a specific section per unit time. This amount can be an instantaneous flow rate or a cumulative flow rate. The instantaneous flow rate refers to the steam flow rate through the pipe section between the boiler outlet and the turbine inlet at a specific moment. This is a dynamic, real-time changing value that reflects the amount of steam generated by the boiler at a specific moment. The cumulative flow rate refers to the total amount of steam passing through the pipe section between the boiler outlet and the turbine inlet within a certain time interval. This is a static, cumulative value that reflects the total amount of steam generated by the boiler within a certain period of time.

[0083] For example, the pump scoop refers to a component used in conjunction with the hydraulic coupling, and its main function is to adjust the oil filling degree in the hydraulic coupling by changing the position of the scoop tube, thereby changing the output torque, thereby adjusting the speed and flow of the water pump. The pump scoop position refers to the position of the scoop tube.

[0084] Step S302: If the state of the first feed water pump is a fault state; based on the engine power value, the pump scoop position of the first feed water pump, the main steam flow, the preset first constant pump scoop position and the preset second constant pump scoop position, determine the pump scoop position instruction corresponding to the second feed water pump.

[0085] The second water supply pump is a water supply pump in the power generation water supply system except the first water supply pump.

[0086] Exemplarily, the host computer may utilize an intelligent control terminal installed on-site to collect equipment operating parameters of the first water supply pump in real time, thereby determining whether the first water supply pump is in a fault state.

[0087] Exemplarily, the fault state is a trip state.

[0088] For example, if the first water supply pump is in a faulty state, the second water supply pump can be automatically started without manual operation.

[0089] Step S303: sending a pump scoop position instruction of the second water supply pump to the second water supply pump.

[0090] The embodiment of the present application provides a method for obtaining a pump scoop position instruction, which monitors the engine power value, the pump scoop position of the currently running first feedwater pump, the state of the first feedwater pump and the main steam flow in real time; if the state of the first feedwater pump is a fault state; based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, the preset first constant pump scoop position and the preset second constant pump scoop position, determine the pump scoop position instruction corresponding to the second feedwater pump; send the pump scoop position instruction of the second feedwater pump to the second feedwater pump. The present application monitors the engine power value, the pump scoop position of the currently running first feedwater pump, the state of the first feedwater pump and the main steam flow in real time, so that the pump scoop position instruction corresponding to the second feedwater pump can be generated in real time; after the second feedwater pump is started, the corresponding operation can be performed immediately based on the pump scoop position instruction corresponding to the second feedwater pump, so that the corresponding tonnage of water can be output in time to reduce the disturbance of the water level.

[0091] Step S302 is described below in conjunction with the specific conditions of the first water supply pump and the second water supply pump.

[0092] Before describing step S302, the software structure involved in the embodiment of the present application is described first.

[0093] like Figure 4The figure is a schematic diagram of an implementation method of the software structure provided in an embodiment of the present application.

[0094] Exemplarily, the software structure includes: a first analog quantity selection module, a second analog quantity selection module, a third analog quantity selection module, a fourth analog quantity selection module, a fifth analog quantity selection module, a sixth analog quantity selection module, a seventh analog quantity selection module, an eighth analog quantity selection module, a high limit alarm module, a first OR gate, a second OR gate and 5 timers.

[0095] Exemplarily, the analog quantity selection module (i.e., any one of the first analog quantity selection module, the second analog quantity selection module, the third analog quantity selection module, the fourth analog quantity selection module, the fifth analog quantity selection module, the sixth analog quantity selection module, the seventh analog quantity selection module, and the eighth analog quantity selection module) may be AXSEL (AnalogQuantity Selection). Exemplarily, the AXSEL module may be used to select different spoon position control signals, depending on the current load condition (higher or lower than 220MW).

[0096] Exemplarily, port Z of the analog quantity selection module inputs information. If the information meets the conditions, the analog quantity selection module outputs the signal input from port X1. If the information does not meet the conditions, the analog quantity selection module outputs the signal input from port X2.

[0097] Exemplarily, the high limit alarm module may be an HLALM (High Limit Alarm) module, wherein port H of the high limit alarm module inputs a preset power, and port X inputs a target engine power value, and if the target engine power value is greater than the preset power, the high limit alarm module may output 1, and if the target engine power value is less than or equal to the preset power, the high limit alarm module may output 0.

[0098] Exemplarily, the timer may be a TIMER module. The TIMER module is used to realize that after the signal message is input to the timer, the signal can still be output within a specific duration, that is, the signal is delayed in time. For example, the signal "status of the steam-driven water supply pump" ends at 23:09:00 on December 27, 2024. If the specific duration is 60 seconds, the timer can still output the status of the steam-driven water supply pump from 23:09:00 on December 27, 2024 to 23:10:00 on December 27, 2024.

[0099] Exemplarily, the specific durations of different timers may be the same or different, depending on actual conditions.

[0100] Combine the following Figure 4 A variety of situations are described.

[0101] The first case: the first water supply pump is a steam-driven water supply pump, and the second water supply pump includes a main electric water supply pump and a slave electric water supply pump. The pump scoop position instruction of the second water supply pump includes a first pump scoop position instruction of the main electric water supply pump and a second pump scoop position instruction of the slave electric water supply pump. In the first case, the specific implementation method of step S302 includes the following steps A1 to A3.

[0102] Step A1: If the state of the steam-driven feedwater pump is a fault state and the engine power value before the steam-driven feedwater pump fails is greater than the preset power, obtain the first candidate pump scoop position corresponding to the main steam flow in the first preset function; the horizontal coordinate of the first preset function is the main steam flow, and the vertical coordinate is the pump scoop position.

[0103] Exemplarily, the preset power can be the power that an electric feedwater pump can provide to the engine. Exemplarily, the preset power can be determined based on actual conditions, and is not limited here. For example, the preset power is 220MW.

[0104] It is understandable that if the engine power value before the steam-driven water supply pump fails is greater than the preset power, one main electric water supply pump or one slave electric water supply pump cannot meet the requirement, so the main electric water supply pump and the slave electric water supply pump need to be started.

[0105] like Figure 4 As shown, the port X1 of the first analog quantity selection module is connected to the output end of the first analog quantity selection module, and the input of the port X1 is the engine power value before the steam-driven feedwater pump fails.

[0106] Combination Figure 4 As shown, the input of port Z of the first analog quantity selection module is the state of the steam-driven water supply pump. If the state of the steam-driven water supply pump is a fault state, the condition is met; if the state of the steam-driven water supply pump is a non-fault state, such as a normal operating state or a non-starting state, the condition is not met.

[0107] Combined with step A1, since the state of the steam-driven water supply pump is a fault state that satisfies the condition, the first analog quantity selection module outputs the engine power value before the steam-driven water supply pump fails. The input of the X port of the high-limit alarm module is the output of the first analog quantity selection module. If the output of the first analog quantity selection module is greater than the preset power, the high-limit alarm module outputs 1.

[0108] The input of port Z of the second analog quantity selection module is 1, 1 means the condition is met, and 0 means the condition is not met, so the output of the second analog quantity selection module is the input of port X1 of the second analog quantity selection module, and the input of port X1 of the second analog quantity selection module is the first candidate pump spoon position.

[0109] like Figure 5The figure is a schematic diagram of an implementation method of the first preset function provided in an embodiment of the present application.

[0110] The abscissa of the first preset function is the main steam flow rate, and the ordinate is the pump scoop position.

[0111] Step A2: If the state of the main electric water supply pump is non-faulty and the second preset electric pump interlocking rule does not satisfy the second electric pump condition and the first preset steam pump pumping rule satisfies the first steam pump condition, obtain the first pump scoop position instruction including the first candidate pump scoop position.

[0112] The second electric pump condition is that the main electric water supply pump is in operation and the slave electric water supply pump is in interlocking state; the first steam pump condition is that the steam-driven water supply pump is in operation and the main electric water supply pump is in interlocking state.

[0113] Exemplarily, “the second electric pump condition is that the main electric water supply pump is in an operating state and the slave electric water supply pump is in an interlocking state”, in which “interlocking state” means that after a failure of the main electric water supply pump, it can be switched to the slave electric water supply pump.

[0114] Exemplarily, the "interlocking state" in "the first steam pump condition is that the steam-driven water supply pump is in an operating state and the main electric water supply pump is in an interlocking state" means that after the steam-driven water supply pump fails, it can be switched to the main electric water supply pump.

[0115] It can be understood that the steam-driven water supply pump is in a faulty state, and the main electric water supply pump and the slave electric water supply pump are both in a non-faulty state.

[0116] Combination Figure 4 , if the state of the main electric water supply pump is non-fault state (represented by 0) and the second preset electric pump interlocking rule does not meet the second electric pump condition (represented by 0), the first OR gate outputs 0. The input of port Z of the fifth analog quantity selection module is the output of the first OR gate. Since the output of the first OR gate is 0 and does not meet the condition, the output of the fifth analog quantity selection module is the input of port X2. The input of port Z of the fourth analog quantity selection module is the first preset steam pump head rule. Since the first preset steam pump pump throw rule meets the first steam pump condition, the output of the fourth analog quantity selection module is the input of port X1, that is, the first candidate pump spoon position. Therefore, the fifth analog quantity selection module outputs the first pump spoon position instruction containing the first candidate pump spoon position.

[0117] Step A3: If the status of the slave electric water supply pump is non-faulty and the first preset electric pump interlocking rule does not satisfy the first electric pump condition and the second preset steam pump head rule satisfies the second steam pump condition, obtain the second pump scoop position instruction containing the first candidate pump scoop position; the first electric pump condition is that the slave electric water supply pump is in running state and the master electric water supply pump is in interlocking state; the second steam pump condition is that the steam-driven water supply pump is in running state and the slave electric water supply pump is in interlocking state.

[0118] Exemplarily, in “the first electric pump condition is that the slave electric water supply pump is in an operating state and the main electric water supply pump is in an interlocked state”, “interlocked state” means that after a failure of the slave electric water supply pump occurs, it is possible to switch to the main electric water supply pump.

[0119] Exemplarily, the "interlocking state" in "the second steam pump condition is that the steam-driven water supply pump is in operation and the slave electric water supply pump is in interlocking state" means that after a failure of the steam-driven water supply pump occurs, it can be switched to the slave electric water supply pump.

[0120] Combination Figure 4 , if the state of the electric water supply pump is non-fault state (represented by 0) and the first preset electric pump interlocking rule does not meet the first electric pump condition (represented by 0), the second OR gate outputs 0. The input of port Z of the eighth analog quantity selection module is the output of the second OR gate. Since the output of the second OR gate is 0 and does not meet the condition, the output of the eighth analog quantity selection module is the input of port X2. The input of port Z of the seventh analog quantity selection module is the second preset steam pump head rule. Since the second preset steam pump pump throw rule meets the second steam pump condition, the output of the seventh analog quantity selection module is the input of port X1, that is, the first candidate pump spoon position. Therefore, the output of the eighth analog quantity selection module contains the second pump spoon position instruction of the first candidate pump spoon position.

[0121] The second case: the first water supply pump is a steam-driven water supply pump, the second water supply pump is the main electric water supply pump, and the pump scoop position instruction of the second water supply pump includes the third pump scoop position instruction of the main electric water supply pump. In the second case, the implementation of step S302 includes the following steps B1 to B2.

[0122] Step B1: If the state of the steam-driven feedwater pump is a fault state and the engine power value before the steam-driven feedwater pump trips is less than or equal to the preset power, obtain the second candidate pump scoop position corresponding to the main steam flow in the second preset function; the horizontal coordinate of the second preset function is the main steam flow, and the vertical coordinate is the pump scoop position.

[0123] It is understandable that if the engine power value before the steam-driven feedwater pump fails is less than or equal to the preset power, then one main electric feedwater pump or one slave electric feedwater pump meets the requirement. The second case is described by taking the second feedwater pump as the main electric feedwater pump as an example.

[0124] like Figure 6 The figure is a schematic diagram of an implementation method of the second preset function provided in an embodiment of the present application.

[0125] The abscissa of the second preset function is the main steam flow rate, and the ordinate is the pump scoop position.

[0126] Illustratively, the process of obtaining the second candidate pump scoop position may refer to the process of obtaining the first candidate pump scoop position, which will not be described in detail here.

[0127] Step B2: If the first preset steam pump pumping rule satisfies the first steam pump condition and the second preset electric pump interlocking rule does not satisfy the second electric pump condition and the status of the main electric water supply pump is non-faulty, obtain the third pump scoop position instruction including the second candidate pump scoop position.

[0128] The second electric pump condition is that the main electric water supply pump is in operation and the slave electric water supply pump is in interlocking state; the first steam pump condition is that the steam-driven water supply pump is in fault state and the main electric water supply pump is in interlocking state.

[0129] Combination Figure 4 If the second preset electric pump interlocking rule does not meet the second electric pump condition (represented by 0) and the state of the main electric water supply pump is a non-fault state (represented by 0), the output of the first OR gate is 0, and the input of port Z of the fifth analog quantity selection module is the output of the first OR gate. Since the output of the first OR gate is 0 and does not meet the condition, the output of the fifth analog quantity selection module is the input of port X2.

[0130] Since the first preset steam pump pumping rule meets the first steam pump condition, the output of the fourth analog quantity selection module is the input of port X1, that is, the second candidate pump position. That is, the output of the fifth analog quantity selection module is the third pump position instruction including the second candidate pump position.

[0131] In the second case, the slave electric feed water pump is not started. Although the slave electric feed water pump is not started, the slave electric feed water pump is in an interlocking state with respect to the master electric feed water pump.

[0132] Combination Figure 4, if the state of the electric water supply pump is non-fault state (represented by 0) and the first preset electric pump interlocking rule does not meet the first electric pump condition (represented by 0), the second OR gate outputs 0. The input of port Z of the eighth analog quantity selection module is the output of the second OR gate. Since the output of the second OR gate is 0 and does not meet the condition, the output of the eighth analog quantity selection module is the input of port X2. The input of port Z of the seventh analog quantity selection module is the second preset steam pump head rule. Since the second preset steam pump pump throw rule does not meet the second steam pump condition, the output of the seventh analog quantity selection module is the input of port X2.

[0133] Since the first preset electric pump interlocking rule does not meet the first electric pump condition, the output of the sixth analog quantity selection module is the input of port X2, i.e., the pump scoop position of the active water supply pump. In summary, the output of the eighth analog quantity selection module is the pump scoop position of the active water supply pump, thereby realizing that the host computer sends a command containing the pump scoop position of the main electric water supply pump to the slave electric water supply pump in real time. Thereby, when the main electric water supply pump is in a fault state, the purpose of obtaining the pump scoop position of the main electric water supply pump can be achieved immediately after the slave electric water supply pump is automatically started.

[0134] The third case: the first water supply pump is a master electric water supply pump, the second water supply pump is a slave electric water supply pump, and the pump scoop position instruction of the second water supply pump includes the fourth pump scoop position instruction of the slave electric water supply pump. In the third case, the implementation of step S302 includes the following steps C1.

[0135] Step C1: If the first preset electric pump interlocking rule does not meet the first electric pump condition and the status of the slave electric water supply pump is in a non-fault state and the second preset steam pump head rule does not meet the second steam pump condition, obtain a fourth pump scoop position instruction including the pump scoop position of the master electric water supply pump.

[0136] The first electric pump condition is that the slave electric water supply pump is in operation and the master electric water supply pump is in interlocking state; the second steam pump condition is that the steam-driven water supply pump is in operation and the slave electric water supply pump is in interlocking state.

[0137] It can be understood that the main electric water supply pump can be switched to the slave electric water supply pump, that is, the third case; or the slave electric water supply pump can be switched to the main electric water supply pump.

[0138] It can be understood that, when the main electric water supply pump is in operation, the host computer sends the fourth pump scoop position to the slave electric water supply pump in real time.

[0139] Combination Figure 4, if the first preset electric pump interlocking rule does not meet the first electric pump condition (represented by 0) and the state of the slave electric water supply pump is a non-fault state (represented by 0), the second OR gate outputs 0 (does not meet the condition); then the output of the eighth analog quantity selection module is the input of port X2. Since the second preset second preset steam pump head rule does not meet the second steam pump condition, the output of the seventh analog quantity selection module is the input of port X2; since the first preset electric pump interlocking rule does not meet the first electric pump condition, the output of the sixth analog quantity selection module is the input of port X2, i.e., the pump scoop position of the main electric water supply pump, so the eighth analog quantity selection module outputs the fourth pump scoop position including the pump scoop position of the main electric water supply pump.

[0140] In the third case, after switching from the main electric water supply pump to the slave electric water supply pump, the main electric water supply pump is repaired, and the repaired main electric water supply pump is in an interlocking state with the slave electric water supply pump. The following is an explanation.

[0141] Combination Figure 4 , if the second preset electric pump interlocking rule does not meet the second electric pump condition (represented by 0) and the state of the main electric water supply pump is a non-fault state (represented by 0), the output of the first OR gate is 0 (does not meet the condition), so the output of the fifth analog quantity selection module is the input of port X2. Since the first preset steam pump head rule does not meet the first steam pump condition, the output of the fourth analog quantity selection module is the input of port X2; since the first preset steam pump head rule does not meet the first steam pump condition, the output of the third analog quantity selection module is the output of port X2, i.e., the pump scoop position of the slave electric water supply pump. That is, the fifth analog quantity selection module outputs a pump scoop position instruction containing the pump scoop position of the slave electric water supply pump. The pump scoop position instruction containing the pump scoop position of the slave electric water supply pump can be sent to the main electric water supply pump in real time, so that when the slave electric water supply pump is in a fault state, after the main electric water supply pump is automatically started, the main electric water supply pump can immediately execute based on the pump scoop position instruction containing the pump scoop position of the slave electric water supply pump.

[0142] Fourth situation: the first water supply pump is a slave electric water supply pump, the second water supply pump is a master electric water supply pump, and the pump scoop position instruction of the second water supply pump includes the fifth pump scoop position instruction of the master electric water supply pump. In the fourth situation, the implementation method of step S302 includes the following steps D1.

[0143] It can be understood that the main electric water supply pump can be switched to the slave electric water supply pump, which is the third case, or the slave electric water supply pump can be switched to the main electric water supply pump, which is the fourth case.

[0144] Step D1: If the second preset electric pump interlocking rule does not satisfy the second electric pump condition and the status of the main electric water supply pump is in a non-fault state and the first preset steam pump head rule does not satisfy the first steam pump condition and the first preset electric pump interlocking rule satisfies the first electric pump condition, obtain the fifth pump scoop position instruction including the pump scoop position of the slave electric water supply pump.

[0145] Combination Figure 4 , if the second preset electric pump interlocking rule does not meet the second electric pump condition (represented by 0) and the state of the main electric water supply pump is a non-fault state (represented by 0), the output of the first OR gate is 0 (does not meet the condition), so the output of the fifth analog quantity selection module is the input of port X2. Since the first preset steam pump head rule does not meet the first steam pump condition, the output of the fourth analog quantity selection module is the input of port X2; since the first preset steam pump head rule does not meet the first steam pump condition, the output of the third analog quantity selection module is the output of port X2, i.e., the pump scoop position of the slave electric water supply pump. That is, the fifth analog quantity selection module outputs the fifth pump scoop position instruction containing the pump scoop position of the slave electric water supply pump. The fifth pump scoop position instruction can be sent to the main electric water supply pump in real time, so that when the slave electric water supply pump is in a fault state, after the main electric water supply pump is automatically started, the main electric water supply pump can immediately perform the corresponding operation based on the fifth pump scoop position instruction.

[0146] It can be understood that the embodiment of the present application also includes the following steps E1 to E2.

[0147] Step E1: If the state of the first feed water pump is non-faulty, determine the pump scoop position instruction corresponding to the first feed water pump based on the engine power value, the pump scoop position of the first feed water pump, the main steam flow, the preset first constant pump scoop position and the preset second constant pump scoop position.

[0148] Step E2: sending a pump scoop position instruction corresponding to the first water supply pump to the first water supply pump.

[0149] It is understandable that, in combination with different situations of the first water supply pump, the implementation method of step E1 is different.

[0150] The first case: the first water supply pump is a steam-driven water supply pump. In the first case, the implementation method of step E1 includes the following steps F1 to F3.

[0151] Step F1: If the state of the steam-driven feedwater pump is non-faulty and the engine power value is greater than the preset power, obtain the first candidate pump scoop position corresponding to the main steam flow in the first preset function; the horizontal coordinate of the first preset function is the main steam flow, and the vertical coordinate is the pump scoop position.

[0152] Step F2: If the status of the steam-driven feedwater pump is non-faulty and the engine power value is less than or equal to the preset power, obtain the second candidate pump scoop position corresponding to the main steam flow in the second preset function; the horizontal coordinate of the second preset function is the main steam flow, and the vertical coordinate is the pump scoop position.

[0153] Step F3: If the first preset steam pump head rule satisfies the first steam pump condition and the second preset electric pump interlocking rule does not satisfy the second electric pump condition and the status of the main electric water supply pump is in a non-fault state, obtain the pump spoon position instruction corresponding to the first water supply pump containing the first candidate pump spoon position or the second candidate pump spoon position; the second electric pump condition is that the main electric water supply pump is in an operating state and the slave electric water supply pump is in an interlocking state; the first steam pump condition is that the steam-driven water supply pump is in an operating state and the main electric water supply pump is in an interlocking state.

[0154] Combination Figure 4 For the explanation of step F1 to step F3, please refer to the previous description, which will not be repeated here.

[0155] The second situation: the first water supply pump is a main motor water supply pump. In the second situation, the implementation method of step E1 includes the following steps G1.

[0156] Step G1: If the second preset electric pump interlocking rule satisfies the second electric pump condition and the status of the main electric water supply pump is in a non-fault state, obtain the pump scoop position instruction corresponding to the main electric water supply pump including the first constant pump scoop position; the second electric pump condition is that the main electric water supply pump is in an operating state and the slave electric water supply pump is in an interlocking state.

[0157] Combination Figure 4 If the second preset electric pump interlocking rule satisfies the second electric pump condition (represented by 1) and the status of the main electric water supply pump is non-faulty (represented by 0), the first OR gate outputs 1 (satisfies the condition), so the output of the fifth analog quantity selection module is the input of port X1, that is, the first constant pump position.

[0158] The third situation: the first water supply pump is a water supply pump from an electric motor. In the third situation, the method for implementing step E1 includes the following steps H1.

[0159] Step H1: If the first preset electric pump interlocking rule satisfies the first electric pump condition and the status of the slave electric water pump is in a non-fault state, obtain the pump scoop position instruction corresponding to the slave electric water pump including the second constant pump scoop position; the first electric pump condition is that the slave electric water pump is in an operating state and the master electric water pump is in an interlocking state.

[0160] Combination Figure 4If the first preset electric pump interlocking rule satisfies the first electric pump condition (represented by 1) and the status of the electric water supply pump is non-faulty (represented by 0), the second OR gate outputs 1 (satisfies the condition), so the output of the eighth analog quantity selection module is the input of port X1, that is, the second constant pump position.

[0161] A method for obtaining a pump scoop position instruction provided in an embodiment of the present application is introduced above, and a device for executing the above method for obtaining a pump scoop position instruction will be introduced below.

[0162] See also Figure 7 , Figure 7 This is a schematic diagram of the structure of a pump scoop position instruction acquisition device provided in an embodiment of the present application. Figure 7 As shown, the pump spoon position instruction acquisition device includes:

[0163] The first monitoring module 701 is used to monitor the engine power value, the pump position of the currently running first feedwater pump, the state of the first feedwater pump and the main steam flow in real time;

[0164] The first determination module 702 is used to determine the pump scoop position instruction corresponding to the second feedwater pump if the state of the first feedwater pump is a fault state; based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, the preset first constant pump scoop position and the preset second constant pump scoop position; the second feedwater pump is the feedwater pump other than the first feedwater pump in the power generation feedwater system;

[0165] The first sending module 703 is used to send a pump scoop position instruction of the second water supply pump to the second water supply pump.

[0166] In an optional implementation, the first water supply pump is a steam-driven water supply pump, the second water supply pump includes a main electric water supply pump and a slave electric water supply pump, the pump scoop position instruction of the second water supply pump includes a first pump scoop position instruction of the main electric water supply pump and a second pump scoop position instruction of the slave electric water supply pump; the first determination module includes:

[0167] A first acquisition unit is used to acquire a first candidate pump scoop position corresponding to the main steam flow in a first preset function if the state of the steam-driven feedwater pump is a fault state and the engine power value before the failure of the steam-driven feedwater pump is greater than a preset power; the abscissa of the first preset function is the main steam flow, and the ordinate is the pump scoop position;

[0168] A second acquisition unit is used for acquiring the first pump position instruction including the first candidate pump position if the state of the main electric feedwater pump is a non-fault state and the second preset electric pump interlocking rule does not satisfy the second electric pump condition and the first preset steam pump pumping rule satisfies the first steam pump condition; the second electric pump condition is that the main electric feedwater pump is in a running state and the slave electric feedwater pump is in an interlocking state; the first steam pump condition is that the steam-driven feedwater pump is in a running state and the main electric feedwater pump is in an interlocking state;

[0169] The third acquisition unit is used to obtain the second pump scoop position instruction including the first candidate pump scoop position if the state of the slave electric water supply pump is non-fault state and the first preset electric pump interlocking rule does not satisfy the first electric pump condition and the second preset steam pump head rule satisfies the second steam pump condition; the first electric pump condition is that the slave electric water supply pump is in running state and the master electric water supply pump is in interlocking state; the second steam pump condition is that the steam-driven water supply pump is in running state and the slave electric water supply pump is in interlocking state.

[0170] In an optional implementation, the first water supply pump is a steam-driven water supply pump, the second water supply pump is the main electric water supply pump, and the pump scoop position instruction of the second water supply pump includes the third pump scoop position instruction of the main electric water supply pump; the first determination module includes:

[0171] A fourth acquisition unit is used to acquire a second candidate pump scoop position corresponding to the main steam flow in a second preset function if the state of the steam-driven feedwater pump is a fault state and the engine power value before the steam-driven feedwater pump trips is less than or equal to a preset power; the abscissa of the second preset function is the main steam flow, and the ordinate is the pump scoop position;

[0172] The fifth acquisition unit is used to obtain the third pump position instruction including the second candidate pump position if the first preset steam pump pumping rule satisfies the first steam pump condition and the second preset electric pump interlocking rule does not satisfy the second electric pump condition and the status of the main electric water supply pump is in a non-fault state; the second electric pump condition is that the main electric water supply pump is in an operating state and the slave electric water supply pump is in an interlocking state; the first steam pump condition is that the status of the steam-driven water supply pump is in a fault state and the main electric water supply pump is in an interlocking state.

[0173] In an optional implementation, the first water supply pump is a master electric water supply pump, the second water supply pump is a slave electric water supply pump, the pump scoop position instruction of the second water supply pump includes a fourth pump scoop position instruction of the slave electric water supply pump, and the first determination module includes:

[0174] The sixth acquisition unit is used to acquire a fourth pump scoop position instruction including the pump scoop position of the main electric water supply pump if the first preset electric pump interlocking rule does not meet the first electric pump condition and the status of the slave electric water supply pump is in a non-fault state and the second preset steam pump head rule does not meet the second steam pump condition; the first electric pump condition is that the slave electric water supply pump is in an operating state and the master electric water supply pump is in an interlocking state; the second steam pump condition is that the steam-driven water supply pump is in an operating state and the slave electric water supply pump is in an interlocking state.

[0175] In an optional implementation, the first water supply pump is a slave electric water supply pump, the second water supply pump is a master electric water supply pump, the pump scoop position instruction of the second water supply pump includes the fifth pump scoop position instruction of the master electric water supply pump, and the first determination module includes:

[0176] The seventh acquisition unit is used to obtain the fifth pump scoop position instruction including the pump scoop position of the slave electric water supply pump if the second preset electric pump interlocking rule does not satisfy the second electric pump condition and the status of the main electric water supply pump is non-fault state and the first preset steam pump head rule does not satisfy the first steam pump condition and the first preset electric pump interlocking rule satisfies the first electric pump condition; the first steam pump condition is that the steam-driven water supply pump is in an operating state and the main electric water supply pump is in an interlocking state; the second electric pump condition is that the main electric water supply pump is in an operating state and the slave electric water supply pump is in an interlocking state; the first electric pump condition is that the slave electric water supply pump is in an operating state and the main electric water supply pump is in an interlocking state.

[0177] In an optional implementation, the method further includes:

[0178] a second determination module, configured to determine, if the state of the first feedwater pump is a non-fault state, a pump scoop position instruction corresponding to the first feedwater pump based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, a preset first constant pump scoop position and a preset second constant pump scoop position;

[0179] The second sending module is used to send a pump scoop position instruction corresponding to the first water supply pump to the first water supply pump.

[0180] In an optional implementation, the first water supply pump is a steam-driven water supply pump, and if the state of the first water supply pump is a non-fault state, the second determination module includes:

[0181] An eighth acquisition unit is used for acquiring a first candidate pump scoop position corresponding to the main steam flow in a first preset function if the state of the steam-driven feedwater pump is a non-fault state and the engine power value is greater than a preset power; the abscissa of the first preset function is the main steam flow, and the ordinate is the pump scoop position;

[0182] A ninth acquisition unit is used for acquiring a second candidate pump scoop position corresponding to the main steam flow in a second preset function if the state of the steam-driven feedwater pump is a non-fault state and the engine power value is less than or equal to the preset power; the abscissa of the second preset function is the main steam flow, and the ordinate is the pump scoop position;

[0183] The tenth acquisition unit is used to obtain the pump scoop position instruction corresponding to the first water supply pump, which includes the first candidate pump scoop position or the second candidate pump scoop position, if the first preset steam pump head rule satisfies the first steam pump condition and the second preset electric pump interlocking rule does not satisfy the second electric pump condition and the status of the main electric water supply pump is in a non-fault state; the second electric pump condition is that the main electric water supply pump is in an operating state and the slave electric water supply pump is in an interlocking state; the first steam pump condition is that the steam-driven water supply pump is in an operating state and the main electric water supply pump is in an interlocking state.

[0184] In an optional implementation, the first water supply pump is a main motor water supply pump. If the state of the first water supply pump is a non-fault state, the second determination module includes:

[0185] The eleventh acquisition unit is used to obtain the pump scoop position instruction corresponding to the main electric water supply pump and including the first constant pump scoop position if the second preset electric pump interlocking rule satisfies the second electric pump condition and the status of the main electric water supply pump is in a non-fault state; the second electric pump condition is that the main electric water supply pump is in an operating state and the slave electric water supply pump is in an interlocking state.

[0186] In an optional implementation, the first water supply pump is a slave motor water supply pump, and if the state of the first water supply pump is a non-fault state, the second determination module includes:

[0187] The twelfth acquisition unit is used to obtain the pump scoop position instruction corresponding to the slave electric water supply pump including the second constant pump scoop position if the first preset electric pump interlocking rule satisfies the first electric pump condition and the slave electric water supply pump is in a non-fault state; the first electric pump condition is that the slave electric water supply pump is in an operating state and the master electric water supply pump is in an interlocking state.

[0188] The present application also provides an electronic device in an embodiment. Figure 8 As shown, it shows a schematic diagram of the structure of an electronic device suitable for implementing the embodiment of the present application. The electronic device in the embodiment of the present application may include but is not limited to fixed terminals such as mobile phones, laptops, PDAs (personal digital assistants), PADs (tablet computers), desktop computers, etc. Figure 8 The electronic device shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0189] like Figure 8 As shown, the electronic device may include a processing device (e.g., a central processing unit, a graphics processing unit, etc.) 801, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 802 or a program loaded from a storage device 808 to a random access memory (RAM) 803. When the electronic device is powered on, various programs and data required for the operation of the electronic device are also stored in the RAM 803. The processing device 801, the ROM 802, and the RAM 803 are connected to each other via a bus 804. An input / output (I / O) interface 805 is also connected to the bus 804.

[0190] Typically, the following devices may be connected to the I / O interface 805: input devices 806 including, for example, a touch screen, a touch pad, a keyboard, a mouse, a camera, a microphone, an accelerometer, a gyroscope, etc.; output devices 807 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; storage devices 808 including, for example, a memory card, a hard disk, etc.; and communication devices 809. The communication device 809 may allow the electronic device to communicate with other devices wirelessly or by wire to exchange data. Although Figure 8 An electronic device having various devices is shown, but it should be understood that it is not required to implement or possess all the devices shown. More or fewer devices may be implemented or possessed instead.

[0191] An embodiment of the present application also provides a computer program product, including computer-readable instructions. When the computer-readable instructions are executed on an electronic device, the electronic device implements any one of the pump spoon position instruction acquisition methods provided in the embodiments of the present application.

[0192] A computer-readable storage medium is also provided in an embodiment of the present application. The storage medium carries one or more computer programs. When the one or more computer programs are executed by an electronic device, the electronic device can implement any pump spoon position instruction acquisition method provided in the embodiment of the present application.

[0193] It should also be noted that the device embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, in the drawings of the device embodiments provided by the present application, the connection relationship between the modules indicates that there is a communication connection between them, which may be specifically implemented as one or more communication buses or signal lines.

[0194] Through the description of the above implementation mode, the technicians in the field can clearly understand that the present application can be implemented by means of software plus necessary general hardware, and of course, it can also be implemented by special hardware including special integrated circuits, special CPUs, special memories, special components, etc. In general, all functions completed by computer programs can be easily implemented by corresponding hardware, and the specific hardware structure used to implement the same function can also be various, such as analog circuits, digital circuits or special circuits. However, for the present application, software program implementation is a better implementation mode in more cases. Based on such an understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a readable storage medium, such as a computer floppy disk, a U disk, a mobile hard disk, a ROM, a RAM, a disk or an optical disk, etc., including a number of instructions to enable a computer device (which can be a personal computer, a training device, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0195] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments may be implemented in the form of a computer program product.

[0196] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website site, a computer, a training device, or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, training device, or data center. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a training device, a data center, etc. that includes one or more available media integrations. The available medium may be a magnetic medium, (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state drive (SSD)), etc.

Claims

1. A method for obtaining a pump scoop position instruction, characterized in that: Applied to power generation and water supply systems, including: Real-time monitoring of the engine power value, the pump scoop position of the currently running first feedwater pump, the state of the first feedwater pump and the main steam flow rate; If the state of the first feedwater pump is a fault state; based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, the preset first constant pump scoop position and the preset second constant pump scoop position, determine the pump scoop position instruction corresponding to the second feedwater pump; the second feedwater pump is the feedwater pump other than the first feedwater pump in the power generation feedwater system; A pump scoop position instruction of the second water supply pump is sent to the second water supply pump.

2. The method for obtaining pump scoop position instructions according to claim 1, characterized in that: The first water supply pump is a steam-driven water supply pump, the second water supply pump includes a main electric water supply pump and a slave electric water supply pump, and the pump scoop position instruction of the second water supply pump includes a first pump scoop position instruction of the main electric water supply pump and a second pump scoop position instruction of the slave electric water supply pump; The step of determining the pump scoop position instruction corresponding to the second feedwater pump based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, a preset first constant pump scoop position and a preset second constant pump scoop position comprises: If the state of the steam-driven feedwater pump is a fault state and the engine power value before the fault of the steam-driven feedwater pump is greater than the preset power, obtain the first candidate pump scoop position corresponding to the main steam flow in the first preset function; the abscissa of the first preset function is the main steam flow, and the ordinate is the pump scoop position; If the state of the main electric feedwater pump is non-faulty and the second preset electric pump interlocking rule does not satisfy the second electric pump condition and the first preset steam pump pumping rule satisfies the first steam pump condition, the first pump position instruction including the first candidate pump position is obtained; the second electric pump condition is that the main electric feedwater pump is in operation and the slave electric feedwater pump is in interlocking state; the first steam pump condition is that the steam-driven feedwater pump is in operation and the main electric feedwater pump is in interlocking state; If the status of the slave electric water supply pump is non-faulty and the first preset electric pump interlocking rule does not satisfy the first electric pump condition and the second preset steam pump head rule satisfies the second steam pump condition, obtain the second pump scoop position instruction including the first candidate pump scoop position; the first electric pump condition is that the slave electric water supply pump is in running state and the master electric water supply pump is in interlocking state; the second steam pump condition is that the steam-driven water supply pump is in running state and the slave electric water supply pump is in interlocking state.

3. The method for obtaining pump scoop position instructions according to claim 1, characterized in that: The first feedwater pump is a steam-driven feedwater pump, the second feedwater pump is the main electric feedwater pump, the pump scoop position instruction of the second feedwater pump includes a third pump scoop position instruction of the main electric feedwater pump, and the step of determining the pump scoop position instruction corresponding to the second feedwater pump based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, a preset first constant pump scoop position and a preset second constant pump scoop position includes: If the state of the steam-driven feedwater pump is a fault state and the engine power value before the steam-driven feedwater pump trips is less than or equal to the preset power, obtain the second candidate pump scoop position corresponding to the main steam flow in the second preset function; the abscissa of the second preset function is the main steam flow, and the ordinate is the pump scoop position; If the first preset steam pump pumping rule satisfies the first steam pump condition and the second preset electric pump interlocking rule does not satisfy the second electric pump condition and the status of the main electric water supply pump is in a non-fault state, obtain the third pump position instruction containing the second candidate pump position; the second electric pump condition is that the main electric water supply pump is in an operating state and the slave electric water supply pump is in an interlocking state; the first steam pump condition is that the status of the steam-driven water supply pump is in a fault state and the main electric water supply pump is in an interlocking state.

4. The method for obtaining pump scoop position instructions according to claim 1, characterized in that: The first feedwater pump is a master electric feedwater pump, the second feedwater pump is a slave electric feedwater pump, the pump scoop position instruction of the second feedwater pump includes a fourth pump scoop position instruction of the slave electric feedwater pump, and the step of determining the pump scoop position instruction corresponding to the second feedwater pump based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, a preset first constant pump scoop position and a preset second constant pump scoop position comprises: If the first preset electric pump interlocking rule does not meet the first electric pump condition and the status of the slave electric water pump is in a non-fault state and the second preset steam pump head rule does not meet the second steam pump condition, obtain a fourth pump scoop position instruction including the pump scoop position of the main electric water pump; the first electric pump condition is that the slave electric water pump is in an operating state and the master electric water pump is in an interlocking state; the second steam pump condition is that the steam-driven water pump is in an operating state and the slave electric water pump is in an interlocking state.

5. The method for obtaining pump scoop position instructions according to claim 1, characterized in that: The first feedwater pump is a slave electric feedwater pump, the second feedwater pump is a master electric feedwater pump, the pump scoop position instruction of the second feedwater pump includes a fifth pump scoop position instruction of the master electric feedwater pump, and the step of determining the pump scoop position instruction corresponding to the second feedwater pump based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, a preset first constant pump scoop position and a preset second constant pump scoop position comprises: If the second preset electric pump interlocking rule does not satisfy the second electric pump condition and the status of the main electric water supply pump is in a non-fault state and the first preset steam pump head rule does not satisfy the first steam pump condition and the first preset electric pump interlocking rule satisfies the first electric pump condition, obtain the fifth pump scoop position instruction including the pump scoop position of the slave electric water supply pump; the first steam pump condition is that the steam-driven water supply pump is in an operating state and the main electric water supply pump is in an interlocking state; the second electric pump condition is that the main electric water supply pump is in an operating state and the slave electric water supply pump is in an interlocking state; the first electric pump condition is that the slave electric water supply pump is in an operating state and the main electric water supply pump is in an interlocking state.

6. The method for obtaining pump scoop position instructions according to claim 1, characterized in that: Also includes: If the state of the first feedwater pump is a non-fault state, determining a pump scoop position instruction corresponding to the first feedwater pump based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, a preset first constant pump scoop position and a preset second constant pump scoop position; Send a pump scoop position instruction corresponding to the first water supply pump to the first water supply pump.

7. The method for obtaining pump scoop position instructions according to claim 6, characterized in that: The first feedwater pump is a steam-driven feedwater pump. If the state of the first feedwater pump is a non-fault state, based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, a preset first constant pump scoop position and a preset second constant pump scoop position, determining the pump scoop position instruction corresponding to the first feedwater pump includes: If the state of the steam-driven feedwater pump is a non-fault state and the engine power value is greater than the preset power, a first candidate pump scoop position corresponding to the main steam flow in a first preset function is obtained; the abscissa of the first preset function is the main steam flow, and the ordinate is the pump scoop position; If the state of the steam-driven feedwater pump is a non-fault state and the engine power value is less than or equal to the preset power, obtain a second candidate pump scoop position corresponding to the main steam flow in a second preset function; the abscissa of the second preset function is the main steam flow, and the ordinate is the pump scoop position; If the first preset steam pump head rule satisfies the first steam pump condition and the second preset electric pump interlocking rule does not satisfy the second electric pump condition and the status of the main electric water supply pump is in a non-fault state, obtain the pump spoon position instruction corresponding to the first water supply pump that includes the first candidate pump spoon position or the second candidate pump spoon position; the second electric pump condition is that the main electric water supply pump is in an operating state and the slave electric water supply pump is in an interlocking state; the first steam pump condition is that the steam-driven water supply pump is in an operating state and the main electric water supply pump is in an interlocking state.

8. The method for obtaining pump scoop position instructions according to claim 6, characterized in that: The first feedwater pump is a main motor feedwater pump. If the state of the first feedwater pump is a non-fault state, based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, the preset first constant pump scoop position and the preset second constant pump scoop position, determining the pump scoop position instruction corresponding to the first feedwater pump includes: If the second preset electric pump interlocking rule meets the second electric pump condition and the status of the main electric water supply pump is in a non-fault state, obtain the pump scoop position instruction corresponding to the main electric water supply pump including the first constant pump scoop position; the second electric pump condition is that the main electric water supply pump is in an operating state and the slave electric water supply pump is in an interlocking state.

9. The method for obtaining pump scoop position instructions according to claim 6, characterized in that: The first feedwater pump is a slave motor feedwater pump. If the state of the first feedwater pump is a non-fault state, based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, a preset first constant pump scoop position and a preset second constant pump scoop position, determining the pump scoop position instruction corresponding to the first feedwater pump includes: If the first preset electric pump interlocking rule satisfies the first electric pump condition and the status of the slave electric water pump is in a non-fault state, obtain the pump scoop position instruction corresponding to the slave electric water pump including the second constant pump scoop position; the first electric pump condition is that the slave electric water pump is in an operating state and the master electric water pump is in an interlocking state.

10. A pump spoon position instruction acquisition device, characterized in that: include: A first monitoring module is used to monitor in real time the engine power value, the pump position of the currently running first feedwater pump, the state of the first feedwater pump and the main steam flow rate; A first determination module is used for determining, if the state of the first feedwater pump is a fault state, a pump scoop position instruction corresponding to a second feedwater pump based on the engine power value, the pump scoop position of the first feedwater pump, the main steam flow, a preset first constant pump scoop position and a preset second constant pump scoop position; the second feedwater pump is a feedwater pump other than the first feedwater pump in the power generation feedwater system; The first sending module is used to send a pump scoop position instruction of the second water supply pump to the second water supply pump.

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