CN113467395A - Thermal power generating unit starting method and device, computer equipment and storage medium - Google Patents
Thermal power generating unit starting method and device, computer equipment and storage medium Download PDFInfo
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41865—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by job scheduling, process planning, material flow
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/32—Operator till task planning
- G05B2219/32252—Scheduling production, machining, job shop
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The application relates to a thermal power generating unit starting method and device, computer equipment and a storage medium. By starting a basic system in the thermal power generating unit, acquiring a preset steam source corresponding to an auxiliary steam system in the thermal power generating unit and determining a plurality of auxiliary machine systems to be started in the thermal power generating unit after the basic system is started, and starting the auxiliary machine systems which meet starting conditions in the plurality of auxiliary machine systems to be started based on the preset steam source and operation information of the basic system; and if the starting conditions corresponding to other auxiliary systems to be started are determined to be met based on the operation information of the started auxiliary systems, executing a process of starting the other auxiliary systems to be started until the starting of all the auxiliary systems to be started is completed. Compared with the traditional method that the starting condition of the next system is judged after one system is started, the method and the system have the advantages that the starting conditions of other systems are detected while each system is started, and the corresponding other systems are started when the starting conditions are met, so that the starting efficiency of the thermal power generating unit is improved.
Description
Technical Field
The application relates to the technical field of electric power, in particular to a starting method and device of a thermal power generating unit, computer equipment and a storage medium.
Background
Thermal power is one of the current important power generation modes, and compared with a hydraulic power plant, the thermal power plant has more complicated systems and process flows, and each system needs to be started one by one according to the production process requirements to support the grid-connected power generation operation of a generator. In the thermal power generation process, support of each system in the thermal power generating unit is required, so each system in the thermal power generating unit needs to be started first. At present, the starting process of each system in a thermal power generating unit is generally to start one system and then judge the starting condition of the next system. However, when the thermal power generating unit is started in this way, the starting time is long.
Therefore, the existing starting method of the thermal power generating unit has the defect of low starting efficiency.
Disclosure of Invention
In view of the above, it is necessary to provide a thermal power generating unit starting method, a thermal power generating unit starting device, a computer device, and a storage medium, which can improve starting efficiency.
A method for starting a thermal power generating unit, the method comprising:
responding to a starting instruction aiming at a thermal power generating unit to be started, and starting a basic system in the thermal power generating unit;
if the basic system is detected to be started completely, acquiring a preset steam source corresponding to an auxiliary steam system in the thermal power generating unit and determining a plurality of auxiliary machine systems to be started of the thermal power generating unit; the auxiliary machine system has corresponding operation information and starting conditions;
starting an auxiliary machine system which accords with starting conditions in the plurality of auxiliary machine systems to be started based on the preset steam source and the operation information of the basic system;
and if the starting conditions corresponding to other auxiliary systems to be started are determined to be met based on the operation information of the started auxiliary systems, executing a process of starting the other auxiliary systems to be started until the plurality of auxiliary systems to be started are all started.
In one embodiment, the basic system comprises a circulating water system, an open water system, an air compressor system and a sealing oil system;
the starting of the basic system in the thermal power generating unit comprises the following steps:
starting a circulating water system in the thermal power generating unit to provide a water source for the open water system;
detecting the operation information of the circulating water system, and starting the open water system to cool the air compressor system if the normal operation information of the circulating water system is detected;
detecting the operation information of the open water system, and if the normal operation information of the open water system is detected, starting the air compressor system to provide power air and maintenance air for a pneumatic valve in the thermal power generating unit;
and detecting the operation information of the air compressor system, and if the normal operation information of the air compressor system is detected, starting the sealing oil system to provide sealing oil for a generator in the thermal power generating unit.
In one embodiment, the obtaining of the preset steam source corresponding to the auxiliary steam system in the thermal power generating unit includes:
acquiring a preset steam source corresponding to an auxiliary steam system in the thermal power generating unit; the preset steam source comprises at least one of the following components: and starting the boiler, the adjacent units and the residual steam of the machine.
In one embodiment, if the preset steam source is a starting boiler, determining that the auxiliary steam system is an auxiliary steam system with a steam source from a starting boiler system;
the determining of the plurality of auxiliary machine systems to be started of the thermal power generating unit comprises the following steps:
and determining a desalted water system, a condensed water system, a starting boiler system, an auxiliary steam system with a steam source from the starting boiler system, a shaft seal system, a vacuum pumping system, a drum water supply system, a low-pressure economizer recirculation system, a gas turbine starting grid-connected system and a main steam temperature and pressure raising system in the thermal power generating unit as the auxiliary machine systems to be started.
In one embodiment, the starting, based on the preset steam source and the operation information of the basic system, an auxiliary system meeting a starting condition in the plurality of auxiliary systems to be started includes:
detecting the operation information of the basic system, and if the normal operation information of the basic system and the preset steam source are detected to be determined, determining that the desalination water system is an auxiliary system meeting the starting condition;
and starting the desalted water system to provide make-up water and desalted cooling water for the boiler starting system, make-up water for the condensed water system, water seal injection for the shaft seal system, starting water injection for the vacuum-pumping system and cleaning water for the gas turbine starting grid-connected system.
In one embodiment, the drum watering system comprises a low pressure drum watering system, a medium pressure drum watering system, and a high pressure drum watering system;
if it is determined that the starting conditions corresponding to other auxiliary systems to be started are met based on the operation information of the started auxiliary system, executing a process for starting the other auxiliary systems to be started, including:
detecting the operation information of the demineralized water system, and starting the condensate system and the boiler system if the normal operation information of the demineralized water system is detected; the condensate system is used for providing a water source for the auxiliary system to be started; the starting boiler system is used for providing steam for the unit to be started;
detecting the operation information of the condensate system, and starting an auxiliary steam system of which the steam source comes from a starting boiler system and a low-pressure steam drum water supply system if the normal operation information of the condensate system and the successful ignition of the starting boiler system are detected; the auxiliary steam system is used for providing auxiliary steam for the auxiliary system to be started; the low-pressure steam drum water supply system is used for injecting water into a low-pressure steam drum in the thermal power generating unit;
detecting operation information of the auxiliary steam system, and starting the shaft seal system if the temperature of the auxiliary steam in the auxiliary steam system reaches a first temperature threshold value; the shaft seal system is used for providing shaft seal steam for a steam turbine in the thermal power generating unit;
detecting operation information of the shaft seal system, and starting the vacuum pumping system if the shaft seal steam temperature in the shaft seal system reaches a second temperature threshold value; the vacuum pumping system is used for establishing vacuum for a steam turbine and a condenser in the thermal power generating unit;
detecting the operation information of the low-pressure steam drum water supply system, and starting the medium-pressure steam drum water supply system, the high-pressure steam drum water supply system and the low-pressure economizer recirculation system if the low-pressure steam drum water supply system reaches a preset water level; the medium-pressure steam drum water supply system is used for injecting water in the low-pressure steam drum into a medium-pressure economizer, a medium-pressure steam drum and a medium-pressure evaporator in the thermal power generating unit through a medium-pressure water supply pump and supplying desuperheating steam and high-side pipelines in the thermal power generating unit with desuperheating water; the high-pressure steam drum water supply system is used for injecting water in the low-pressure steam drum into a high-pressure economizer, a high-pressure steam drum and a high-pressure evaporator in the thermal power generating unit through a high-pressure water feed pump and supplying temperature-reducing water to high-pressure steam in the thermal power generating unit; the low-pressure economizer recycling system is used for maintaining the temperature of the flue gas of a low-pressure economizer tube bundle in the thermal power generating unit to be higher than the dew point temperature through heating condensed water;
detecting the operation information of the desalted water system, the condensed water system, the starting boiler system, the auxiliary steam system, the shaft seal system, the vacuumizing system, the drum water supply system and the low-pressure economizer recirculation system, and starting the gas turbine to start the grid-connected system if the operation information is normally started and the water supply of the low-pressure drum reaches a preset water level; the gas turbine starting grid-connected system is used for enabling a gas turbine in the thermal power generating unit to accelerate and carry out grid-connected power generation;
detecting the operation information of the gas turbine, and starting the main steam temperature and pressure raising system if the gas turbine is successfully ignited; and the main steam temperature and pressure raising system is used for controlling a valve of a main steam pipeline in the thermal power generating unit.
In one embodiment, the method further comprises:
acquiring a first monitoring icon, and displaying the operation states of the basic system and the auxiliary machine system through the first monitoring icon; the first monitoring icon comprises a first color, a second color and a third color; the first color characterizes that the base system and/or the auxiliary system are not started; the second color is characterized in the starting of the basic system and/or the auxiliary system; the third color characterizes a start-up fault of the base system and/or the auxiliary system;
acquiring a second monitoring icon, and displaying the available states of the basic system and the auxiliary system through the second monitoring icon; the second monitor icon comprises a fourth color and a fifth color; the fourth color characterizes the base system and/or the auxiliary system as being available; the fifth color characterizes the base system and/or the auxiliary system as unavailable;
acquiring a third monitoring icon, and displaying whether the starting conditions of the basic system and the auxiliary system are met or not through the third monitoring icon; the third monitor icon includes a sixth color and a seventh color; the sixth color represents that the basic system and/or the auxiliary system meet a starting condition; the seventh color characterizes the base system and/or the auxiliary system not meeting a start-up condition.
A thermal power generating unit starting apparatus, the apparatus comprising:
the system comprises a first starting module, a second starting module and a control module, wherein the first starting module is used for responding to a starting instruction aiming at a thermal power generating unit to be started and starting a basic system in the thermal power generating unit;
the determining module is used for acquiring a preset steam source corresponding to an auxiliary steam system in the thermal power generating unit and determining a plurality of auxiliary machine systems to be started of the thermal power generating unit if the basic system is detected to be started; the auxiliary machine system has corresponding operation information and starting conditions;
the second starting module is used for starting an auxiliary machine system which accords with starting conditions in the plurality of auxiliary machine systems to be started based on the preset steam source and the operation information of the basic system;
and the third starting module is used for executing a process of starting other auxiliary systems to be started until the plurality of auxiliary systems to be started are all started up if the starting conditions corresponding to the other auxiliary systems to be started are determined to be met based on the operation information of the started auxiliary systems.
A computer device comprising a memory storing a computer program and a processor implementing the steps of the method described above when executing the computer program.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned method.
According to the thermal power generating unit starting method, the thermal power generating unit starting device, the computer equipment and the storage medium, the basic system in the thermal power generating unit is started firstly, if the completion of the starting of the basic system is detected, the preset steam source corresponding to the auxiliary steam system in the thermal power generating unit is obtained, the auxiliary machine systems to be started in the thermal power generating unit are determined, and the auxiliary machine systems meeting the starting conditions in the auxiliary machine systems to be started are started based on the operation information of the preset steam source and the basic system; and if the starting conditions corresponding to other auxiliary systems to be started are determined to be met based on the operation information of the started auxiliary systems, executing a process of starting the other auxiliary systems to be started until the starting of all the auxiliary systems to be started is completed. Compared with the traditional method that the starting condition of the next system is judged after one system is started, the method and the system have the advantages that the starting conditions of other systems are detected while each system is started, and the corresponding other systems are started when the starting conditions are met, so that the starting efficiency of the thermal power generating unit is improved.
Drawings
FIG. 1 is an application environment diagram of a starting method of a thermal power generating unit in one embodiment;
FIG. 2 is a schematic flow chart of a starting method of a thermal power generating unit in one embodiment;
FIG. 3 is a schematic flow chart of a starting method of a thermal power generating unit in another embodiment;
FIG. 4 is a schematic structural diagram of a thermal power generating unit control in one embodiment;
FIG. 5 is a schematic interface diagram of a monitor icon in one embodiment;
FIG. 6 is an interface diagram of a monitor icon in another embodiment;
fig. 7 is a block diagram showing a starting apparatus of a thermal power generating unit according to an embodiment;
FIG. 8 is a diagram illustrating an internal structure of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The thermal power generating unit starting method provided by the application can be applied to the application environment shown in fig. 1. The terminal 102 communicates with various systems and devices in the thermal power generating unit 104 through a network. The terminal 102 may send a start instruction to the thermal power generating unit, so that the terminal 102 may start a basic system in the thermal power generating unit 104, when the basic system is started, obtain a preset steam source corresponding to an auxiliary steam system in the thermal power generating unit 104 and determine a plurality of auxiliary systems to be started in the thermal power generating unit, and then send a start instruction to auxiliary systems meeting conditions in the thermal power generating unit 104 based on operation information of the preset steam source and the basic system to start the auxiliary systems meeting the start conditions, when the terminal 102 meets the start conditions corresponding to other auxiliary systems to be started based on the operation information of the started auxiliary systems, the terminal 102 may send a start instruction to the other auxiliary systems to be started to start the other auxiliary systems to be started, until the plurality of auxiliary systems to be started in the thermal power generating unit are all started. The terminal 102 may be, but is not limited to, various industrial control computers, personal computers, notebook computers, smart phones, and tablet computers.
In an embodiment, as shown in fig. 2, a method for starting a thermal power generating unit is provided, which is described by taking the method as an example of being applied to a terminal in fig. 1, and includes the following steps:
step S202, in response to a start instruction for the thermal power generating unit 104 to be started, a basic system in the thermal power generating unit 104 is started.
The thermal power generating unit 104 may be a unit for thermal power generation, and the thermal power generating unit 104 may be provided with a plurality of systems and devices, such as a desalination water system, a condensate water system, an auxiliary steam system, and the like. Before the thermal power generating unit 104 performs normal power generation operation, each system in the thermal power generating unit needs to be started first. The terminal 102 may receive a start instruction for the thermal power generating unit 104 to be started, for example, a worker triggers the start instruction through the terminal 102. The terminal 102 may respond to the start command and start the basic system in the thermal power unit 104 first. For example, after the terminal 102 responds to a start instruction for the thermal power generating unit, the terminal may first send a start instruction for the basic system to the basic system, and then send a start instruction to another system after the basic system is started. Wherein, above-mentioned basic system includes circulating water system, open water system, air compressor machine system and sealing oil system etc.. The terminal 102 may start the basic systems in a specific order, for example, the start condition of each of the basic systems may be related to the operation information of other basic systems, and the terminal 102 may start a system based on the start condition of each of the basic systems when detecting that the start condition of the system is satisfied, so as to implement parallel start of the systems.
Step S204, if the completion of the starting of the basic system is detected, acquiring a preset steam source corresponding to an auxiliary steam system in the thermal power generating unit 104 and determining a plurality of auxiliary machine systems to be started of the thermal power generating unit 104; the auxiliary machine system has corresponding operation information and starting conditions.
The basic system may be a system that needs to be started in advance before the thermal power unit 104 is started. The basic system is a foundation for ensuring the normal operation of the thermal power generating unit 104. When the terminal 102 detects that the basic system is started, the terminal 102 may obtain a preset steam source required for starting the auxiliary steam system, and determine a plurality of auxiliary systems to be started in the thermal power generating unit 104 that need to be started, and in addition, the terminal 102 may further set priority start rights of the auxiliary systems configured redundantly by the systems. The auxiliary system represents a system which is started after a basic system in the thermal power generating unit 104 is started, a plurality of auxiliary systems all participate in the operation of the thermal power generating unit 104, each auxiliary system has corresponding operation information and a corresponding starting condition, the starting condition of each auxiliary system corresponds to the numerical value of the operation information of other auxiliary systems, namely when the operation information of one auxiliary system reaches a certain state, the starting condition of one other auxiliary system is met accordingly, and at the moment, the other auxiliary systems can be started. The terminal 102 may set a corresponding monitoring icon for each system and device in the thermal power generating unit 104, and identify the device and the system state using different colors, for example, the terminal 102 may set a device preselection function in a unit automatic start monitoring interface, so as to select the auxiliary system to be started. The device pre-selection function is used for selecting the priority starting right of auxiliary machine systems with redundant configuration of each system and the steam source selection of auxiliary steam before the unit is started. The unselected available device icons may be displayed in a first color and the selected available device icons may be displayed in a second color. The first color is different from the second color, and for auxiliary machine systems and equipment which are redundantly configured, under the condition that an operator on duty does not select, the equipment is automatically selected as priority starting equipment by default. The operator on duty can change the priority starting right of the auxiliary machine system and the equipment according to the actual requirement. If one auxiliary machine system and one auxiliary machine device are not available, the auxiliary machine program automatically selects another available auxiliary machine device as a priority starting device, and the icon of the unavailable auxiliary machine device is displayed in a third color. If neither a redundantly configured system nor a device is available, a device that is preferentially enabled cannot be selected and the system associated with the device is disabled from being enabled.
There may be a plurality of preset steam sources in the thermal power unit 104, and the terminal 102 needs to select a preset steam source required by the auxiliary steam system, for example, in an embodiment, obtaining a preset steam source corresponding to the auxiliary steam system in the thermal power unit 104 includes: acquiring a preset steam source corresponding to an auxiliary steam system in the thermal power generating unit 104; the preset steam source comprises at least one of the following: and starting the boiler, the adjacent units and the residual steam of the machine. In this embodiment, the auxiliary steam system in the thermal power generating unit 104 may determine different auxiliary steam systems according to selection of a preset steam source, where the preset steam source includes at least one of starting a boiler, an adjacent unit, and residual steam of the local unit, and the terminal 102 needs to first determine the preset steam source to be used, for example, selection is performed by a worker, so that the terminal 102 starts the corresponding auxiliary steam system according to the selected preset steam source. For example, for the selection of the auxiliary steam source, before each unit is started, an operator on duty needs to manually select the auxiliary steam source from three options of starting a boiler, an adjacent unit and residual steam of the unit, and if the steam source is not selected, the related system and the unit starting process are prohibited from being executed. If the start boiler system is not available, the start boiler steam source selection icon is locked to operate; if the auxiliary steam parameter index of the adjacent unit is unqualified and the state of the related equipment does not meet the requirement, the steam source selection icon of the adjacent unit is locked for operation; and if the residual steam parameter index of the machine is unqualified and the state of the related equipment does not meet the requirement, the selection icon of the residual steam source of the machine is locked and operated.
And step S206, starting the auxiliary machine systems which accord with the starting conditions in the plurality of auxiliary machine systems to be started based on the preset steam source and the operation information of the basic system.
When the thermal power generating unit 104 is started, the terminal 102 may first start the basic system and determine a preset steam source required for starting the auxiliary steam system. The terminal 102 may obtain operation information of the preset steam source and the basic system, and start a qualified auxiliary system of the selected plurality of auxiliary systems to be started based on the operation information. For example, when the terminal 102 detects that the preset steam source has been determined according to the operation information of the basic system and the device, it determines the auxiliary system that meets the start condition among the auxiliary systems to be started, and starts the auxiliary system first. The system starting mode in the thermal power generating unit 104 may include multiple modes, and the starting mode of the thermal power generating unit 104 includes a breakpoint starting mode, a one-key starting mode, a function group starting mode, and the like. For the breakpoint start, the terminal 102 may divide a complete gas-steam combined cycle unit, that is, the start process of the thermal power generating unit 104 into four breakpoints, which are a system preparation breakpoint, a boiler water supply breakpoint, a gas turbine start grid-connection breakpoint and a turbine temperature rise and pressure rise breakpoint, respectively. The system related to the system preparation breakpoint comprises a circulating water system, an open water system, an air compressor system, a sealing oil system, a desalting water system, a condensate system, a starting boiler system, an auxiliary steam system, a shaft seal system and a vacuum pumping system. And the terminal 102 may divide the above-described plurality of systems into a plurality of function groups. For example, the terminal 102 can be configured with a functional group for a circulating water system, an open water system, a sealing oil system, a demineralized water system, a condensate system, a start-up boiler system, a shaft seal system, and a vacuum system. The function group is a control flow for automatically and sequentially controlling all relevant equipment of the system according to the process requirements of a certain production system and judgment of various conditions. The terminal 102 can also set three auxiliary steam system starting function groups, namely a steam source starting boiler, a steam source starting adjacent unit and a steam source starting residual steam local to the auxiliary steam system according to the steam source. Aiming at the air compressor system, control logics for starting and stopping one by one according to the pressure change of the air tank are independently arranged, and no function group is arranged. The terminal 102 can set a plurality of functional groups such as low-pressure steam drum water feeding, medium-pressure steam drum water feeding, high-pressure steam drum water feeding and low-pressure economizer recirculation system starting for a boiler water feeding breakpoint; setting a gas turbine starting grid-connected function group at a gas turbine starting grid-connected breakpoint; and setting a plurality of functional groups such as low-pressure main steam temperature and pressure rising, medium-pressure main steam temperature and pressure rising, high-pressure main steam temperature and pressure rising and the like at the turbine temperature and pressure rising breakpoint.
The breakpoint starting may be that a plurality of systems in the thermal power unit 104 are divided into a plurality of breakpoints, the system is started at each breakpoint, and when one breakpoint is reached, the next breakpoint is started only by confirming an operation; the one-key starting can be that when a starting instruction is triggered, the thermal power generating unit 104 is directly started until the starting is completed; the function group starting may be that a plurality of systems in the thermal power generating unit 104 are grouped according to functions and started according to each function group. In addition, the terminal 102 may set a function group start interface for each function group. When the function group starting mode is selected, the operator on duty can only operate and start on the function group starting interface, and the starting button in the breakpoint starting interface and the unit one-key starting interface is locked. All functional groups can be executed in a functional group start mode, wherein the circulating water system, the open water system and the sealing oil system functional group can only be executed in the functional group start mode. If the unit is in a southern hot area, the low-pressure economizer recirculation system function group can be set to be executed only in a function group starting mode.
The terminal 102 can set breakpoint starting interfaces for the system preparation breakpoint, the boiler water feeding breakpoint, the gas turbine starting grid-connected breakpoint and the turbine warming and boosting breakpoint respectively, when a breakpoint starting mode is selected, a person on duty can only operate and start on the breakpoint starting interface, and a starting button in the one-key starting interface and the function group starting interface is locked. The functional groups of the desalination water system, the condensate system, the starting boiler system, the auxiliary steam system, the shaft seal system, the vacuumizing system, the low-pressure steam drum water feeding, the medium-pressure steam drum water feeding, the high-pressure steam drum water feeding, the gas turbine starting grid connection, the low-pressure main steam temperature and pressure raising, the medium-pressure main steam temperature and pressure raising, the high-pressure main steam temperature and pressure raising and the like in the thermal power generating unit 104 can be executed in the breakpoint starting mode. If the unit is in a northern cold area, the low-pressure economizer recirculation system function group can be set to be executed in a breakpoint starting mode. The system preparation breakpoint starting process of the terminal 102 automatically skips and executes the starting function group of the demineralized water system, the condensate system, the starting boiler system, the auxiliary steam system, the shaft seal system and the vacuum pumping system according to the process requirements. The starting process of the boiler water-feeding breakpoint of the terminal 102 automatically skips and executes the low-pressure steam drum water-feeding, the medium-pressure steam drum water-feeding and the high-pressure steam drum water-feeding function group according to the process requirements, and automatically executes the low-pressure economizer recirculation system starting function group when necessary. The gas turbine startup grid-connection breakpoint startup process of the terminal 102 automatically executes the gas turbine startup grid-connection function group according to the process requirements. The turbine temperature-raising and pressure-raising breakpoint starting process of the terminal 102 automatically skips to execute the low-pressure main steam temperature-raising and pressure-raising, medium-pressure main steam temperature-raising and pressure-raising and high-pressure main steam temperature-raising and pressure-raising function group according to the process requirements.
The terminal 102 may also be configured with a one-touch start interface. When the unit one-key starting mode is selected, the operator on duty can only operate and start on the unit one-key starting interface, and the starting buttons in the breakpoint starting interface and the function group starting interface are locked. The function groups capable of being executed in the breakpoint starting mode can be executed in the unit one-key starting mode. The unit one-key starting process of the terminal 102 automatically skips the processes of executing system preparation, boiler water feeding, gas turbine starting grid connection and turbine temperature rising and pressure rising breakpoint starting according to the process requirements. In the unit starting process, the unit starting mode of the terminal 102 may be switched from the unit one-key starting to the breakpoint starting mode, or from the breakpoint starting mode to the function group starting mode. When the unit one-key starting mode is switched to the breakpoint starting mode, after the currently executed breakpoint flow is completed, the terminal 102 will not execute downwards any more, and the operator on duty must manually start the subsequent breakpoint flow to continue executing. When the breakpoint starting mode is switched to the function group starting mode, after the currently executed function group flow is completed, the terminal 102 will not execute any further, and the attendant must manually start the subsequent function group flow to continue execution.
And step S208, if it is determined that the starting conditions corresponding to other auxiliary systems to be started are met based on the operation information of the started auxiliary system, executing a process of starting the other auxiliary systems to be started until the plurality of auxiliary systems to be started are all started.
The terminal 102 may perform a starting procedure of the auxiliary system to be started after the basic system has been operated. And the terminal 102 may detect whether the starting conditions corresponding to the other auxiliary systems to be started are met based on the operation information of the started auxiliary system, and if it is determined that the starting conditions corresponding to the other auxiliary systems to be started are met based on the operation information of the started auxiliary system, the terminal 102 may execute a process of starting the other auxiliary systems to be started until the selected plurality of auxiliary systems to be started are all started. For example, the terminal 102 may first start one auxiliary system based on the operation information of the basic system, detect whether the start condition of other auxiliary systems to be started is met based on the operation information of the started auxiliary system, and immediately start the auxiliary system to be started if the start condition is met without waiting for the completion of the start of the auxiliary system currently being started.
Specifically, as shown in fig. 3, fig. 3 is a schematic flow chart of a starting method of a thermal power generating unit in another embodiment. In the breakpoint starting mode or the unit one-key starting mode, in order to increase the unit starting speed, the terminal 102 sets two sets of judgment conditions before each step (function group or breakpoint) in the unit starting process. The first set of conditions determines whether the step is completed or its flow is in progress, and the second set of conditions determines whether the start conditions for the flow of the step have been met. Before a unit starting process needs to execute a certain step, a first group of conditions is judged. If the step is executed or the process is being executed, the unit starting process does not execute the step any more, and the condition judgment of the subsequent step is directly carried out; if the step is not executed, the unit starting process judges a second group of conditions, and the step is executed when the starting conditions of the step are met. In the process of executing the flow of the step, if the subsequent step is not executed and the starting condition is met, the unit starting flow is not equal to the execution completion of the preorder step, and the subsequent step is immediately executed, so that the time for waiting for the completion of the preorder step is effectively reduced, and the starting speed of the unit is accelerated. For example, when the machine set breakpoint starting mode is used, the judgment condition for the completion of the starting of the auxiliary steam system needs that the auxiliary steam temperature reaches 180 ℃, and the starting condition of the subsequent shaft seal system only needs that the auxiliary steam temperature reaches 170 ℃, so that when the auxiliary steam temperature reaches 170 ℃, the machine set starting process of the terminal 102 is not equal to the completion of the starting process of the auxiliary steam system, and the shaft seal system starting functional group is immediately executed. For another example, in the machine set one-key starting mode, the starting judgment condition of the boiler water feeding breakpoint process only needs that the condensate system in the system preparation breakpoint is started and operated normally, so that after the condensate system is started and operated normally, the machine set starting process is not equal to the completion of the execution of all the function groups of the system preparation breakpoint, and the boiler water feeding breakpoint process is executed immediately.
In the thermal power generating unit starting method, a basic system in the thermal power generating unit is started firstly, if the completion of the starting of the basic system is detected, a preset steam source corresponding to an auxiliary steam system in the thermal power generating unit is obtained, a plurality of auxiliary machine systems to be started in the thermal power generating unit are determined, and the auxiliary machine systems meeting the starting conditions in the plurality of auxiliary machine systems to be started are started based on the operation information of the preset steam source and the basic system; and if the starting conditions corresponding to other auxiliary systems to be started are determined to be met based on the operation information of the started auxiliary systems, executing a process of starting the other auxiliary systems to be started until the starting of all the auxiliary systems to be started is completed. Compared with the traditional method that the starting condition of the next system is judged after one system is started, the method and the system have the advantages that the starting conditions of other subsequent systems to be started are detected while each system is started, and the corresponding other systems to be started are started when the starting conditions are met, so that the starting efficiency of the thermal power generating unit is improved.
In one embodiment, starting the basic system in the thermal power generating unit 104 includes: starting a circulating water system in the thermal power generating unit 104 to provide a water source for the open water system; detecting the operation information of a circulating water system, and starting the open water system to cool the air compressor system if the normal operation information of the circulating water system is detected; detecting the operation information of the open water system, and if the normal operation information of the open water system is detected, starting an air compressor system to provide power air and maintenance air for a pneumatic valve in the thermoelectric generator set 104; and detecting the operation information of the air compressor system, and starting the sealing oil system to provide sealing oil for the generator in the thermoelectric generator set 104 if the normal operation information of the air compressor system is detected.
In this embodiment, in the functional group starting mode, when the terminal 102 starts the thermal power generating unit 104, a basic system in the thermal power generating unit 104 may be started first, where the basic system includes a circulating water system, an open water system, an air compressor system, and a sealing oil system. The terminal 102 may first start the circulating water system in the thermal power generating unit 105, so that the circulating water system may provide water to the open water system; after the terminal 102 starts the circulating water system, the operation information of the circulating water system can be detected, and if the circulating water system is detected to be normally operated, the open water system is started, so that the open water system can cool the air compressor system; after the terminal 102 starts the open water system, the operation information of the open water system can be detected, if the open water system is detected to be normally operated, the terminal 102 can start the air compressor system, so that the air compressor system can provide power air and maintenance air for the pneumatic valve in the thermoelectric generator set 104; the terminal 102 can detect the operation information of the air compressor system, and if the operation of the air compressor system is detected to be normal, the terminal 102 can start the sealing oil system, so that the sealing oil system can provide sealing oil for the generator in the thermoelectric generator set 104.
The terminal 102 may start the basic systems in the "function group start" mode. For example, in the function group starting mode, if the terminal 102 detects that the circulating water system is not started to operate, firstly, the attendant confirms that all the devices related to the function group are available and the starting condition is met through the function group device availability and the starting condition state display icon, and then issues a command to enable the terminal 102 to execute the circulating water system starting function group. The condenser is used for providing cooling water for the condenser to condense the exhaust steam of the low-pressure cylinder of the steam turbine, and simultaneously provides a water source for an open cooling water system. After the circulating water system is started and normally operated, the operator on duty confirms that the related equipment of the starting function group of the open water system is available and the starting condition is met through the equipment availability of the function group and the starting condition state display icon, and then the command terminal 102 executes the starting function group of the open water system, so that the terminal can be used for providing cooling water for users such as an air compressor cooling device, an air dryer cooling device, a lubricating oil system cooling device, a control oil cooling device, a condensate pump bearing cooling water device, a vacuum pump cooling device, a generator hydrogen dryer cooling water device, a generator sealing oil cooling device, a generator hydrogen cooling device, a high-pressure water feed pump motor cooling device, a medium-pressure water feed pump motor cooling device, a high-pressure water feed pump lubricating oil system cooling device, a steam-water sampling cooling device and the like after the circulating water system is started. After the open water system is started and normally operated, the terminal 102 can check whether the air compressor system is normally started; if the air compressor system is not started, the air compressor system is started by the terminal 102 or is manually started by an operator on duty to operate and put into an automatic linkage function, so that the air compressor system can be used for providing power air and maintenance air for various pneumatic valves. After the air compressor system normally operates, the person on duty or the terminal 102 can confirm that the relevant equipment of the sealing oil system starting function group is available and the starting condition is met through the equipment availability and starting condition state display icon of the function group, and then order is sent to enable the terminal 102 to execute the sealing oil system starting function group, so that the sealing oil system is used for providing sealing oil for a sealing tile of a generator before the generator is charged with hydrogen, the oil pressure is guaranteed to be higher than the hydrogen pressure in the generator, the hydrogen in the generator is prevented from leaking outwards along a gap between a rotating shaft and the sealing tile, and meanwhile, a large amount of oil is prevented from entering the generator due to overhigh oil pressure.
Through the embodiment, the terminal 102 may start the basic systems in the thermal power generating unit 104 first according to a specific sequence, so that the terminal 102 may start other systems in the thermal power generating unit 104 by using the operation information of the started basic systems as a basis, thereby improving the starting efficiency of the thermal power generating unit 104.
In one embodiment, determining a plurality of auxiliary machine systems to be started of a thermal power generating unit comprises: determining a desalination water system, a condensate system, a starting boiler system, an auxiliary steam system with a steam source from the starting boiler system, a shaft seal system, a vacuum pumping system, a steam drum water supply system, a low-pressure economizer recirculation system, a gas turbine starting grid-connected system and a main steam temperature-raising and pressure-raising system in the thermal power generating unit as a plurality of auxiliary machine systems to be started.
In this embodiment, after the terminal 102 starts the basic system, the priority start right of the auxiliary system configured redundantly by each system and the selection of the preset steam source of the auxiliary steam system may be set, and the auxiliary system to be started may be determined. Wherein, the auxiliary steam system can select different starting function groups according to different selected steam sources. For example, after the circulating water system, the open water system, the air compressor system, the seal oil system and other basic support systems are started and operated normally, the operator on duty selects the auxiliary steam source to confirm the redundancy configuration equipment, namely the preselection condition of the auxiliary system. And if the preset steam source is the starting boiler, determining that the steam source executed by the auxiliary steam system is the auxiliary steam system starting function group for starting the boiler system. In this embodiment, taking the starting boiler system as the preset steam source of the auxiliary steam system as an example, the terminal 102 may determine the desalination water system, the condensate system, the starting boiler system, the auxiliary steam system with the steam source from the starting boiler system, the shaft seal system, the vacuum pumping system, the drum water supply system, the low-pressure economizer recirculation system, the gas turbine starting grid-connected system, and the main steam temperature-raising and pressure-raising system in the thermal power generating unit 104 as a plurality of auxiliary systems to be started. The terminal 102 may start the selected slave system to be started according to a specific rule.
Through the embodiment, the terminal 102 may determine the corresponding auxiliary steam system based on the difference of the steam sources, so that a plurality of auxiliary systems to be started that need to be started are determined based on the auxiliary steam system and the plurality of auxiliary systems, and the auxiliary systems are started according to a specific rule, thereby improving the starting efficiency of the thermal power generating unit 104.
In one embodiment, starting an auxiliary machine system meeting a starting condition in a plurality of auxiliary machine systems to be started based on preset operation information of a steam source and a basic system comprises: detecting the operation information of the basic system, and if the normal operation information of the basic system and the preset steam source are determined, determining the desalination water system as an auxiliary system meeting the starting condition; the method comprises the steps of starting a desalination water system to provide make-up water and desalination cooling water for starting a boiler system, providing make-up water for a condensate system, providing water seal injection for a shaft seal system, providing start injection water for a vacuum pumping system, and providing cleaning water for a gas turbine start grid-connected system.
In this embodiment, the terminal 102 may monitor the operation information of the basic system after the preset steam source is determined and the basic system is started, and start the auxiliary system meeting the start condition in the determined auxiliary systems to be started based on the operation information. For example, when detecting that the basic system is operating normally and the preset steam source is determined, the terminal 102 determines that a desalination water system in the thermal power generating unit 104 is an auxiliary system meeting the starting condition; the terminal 102 may activate the demineralized water system such that the demineralized water system may provide makeup water and demineralized cooling water to the start-up boiler system, makeup water to the condensate system, seal water to the shaft seal system, start water to the vacuum system, and wash water to the gas turbine start-up grid. The normal operation information of the basic system needs to be normal operation information of all basic systems, for example, when the terminal 102 detects the normal operation information of the circulating water system, the normal operation information of the open water system, the normal operation information of the air compressor system, and the normal operation information of the sealing oil system, it may be determined that the basic system is operating normally.
The terminal 102 may also confirm whether the start-up condition of the slave system is satisfied using the displayed icon. For example, the operator on duty confirms that the devices related to the start function group of the demineralized water system are all available and the start condition is met through the function group device availability and the start condition state display icon displayed in the terminal 102, and then commands the terminal 102 to execute the start function group of the demineralized water system, so that the demineralized water system can be used for providing supplementary water for starting a boiler and a condenser, providing water seal injection for a shaft seal cooler, providing sealing water for starting a condensate pump, providing start injection for a vacuum pump, providing water for a cleaning water tank of a combustion engine, and providing closed demineralized cooling water for starting a boiler water supply pump and a hydrogen production system.
Through the embodiment, the terminal 102 can immediately execute the starting process when detecting that the auxiliary system meets the conditions after the basic system and the preset steam source are determined, so that the starting efficiency of the thermal power generating unit 104 is improved.
In one embodiment, if it is determined that the operating information of the started auxiliary system conforms to the starting conditions corresponding to other auxiliary systems to be started, the process of starting the other auxiliary systems to be started is executed, including: detecting the operation information of the demineralized water system, and starting the condensate system and the boiler starting system if the normal operation information of the demineralized water system is detected; the condensate system is used for providing a water source for the auxiliary system to be started; the starting boiler system is used for providing steam for the unit to be started; detecting the operation information of a condensate system, and starting an auxiliary steam system and a low-pressure steam drum water supply system of which the steam source comes from a starting boiler system if the normal operation information of the condensate system and the ignition success of the starting boiler system are detected; the auxiliary steam system is used for providing auxiliary steam for the unit to be started; the low-pressure steam drum water supply system is used for injecting water into a low-pressure steam drum in the fire-electric generator set; detecting operation information of the auxiliary steam system, and starting the shaft seal system if the temperature of the auxiliary steam in the auxiliary steam system reaches a first temperature threshold value; the shaft seal system is used for providing shaft seal steam for a steam turbine in the thermoelectric generator set; detecting the operation information of the shaft seal system, and starting a vacuum pumping system if the temperature of shaft seal steam in the shaft seal system is detected to reach a second temperature threshold; the vacuumizing system is used for establishing vacuum for a steam turbine and a condenser in the thermal power generating unit; detecting the operation information of a low-pressure steam drum water supply system, and starting a medium-pressure steam drum water supply system, a high-pressure steam drum water supply system and a low-pressure economizer recirculation system if the fact that the low-pressure steam drum water supply reaches a preset water level is detected; the medium-pressure steam drum water supply system is used for injecting water in the low-pressure steam drum to a medium-pressure economizer, a medium-pressure steam drum and a medium-pressure evaporator in the thermoelectric generator set through a medium-pressure water supply pump and supplying desuperheating water to reheat steam and a high-side pipeline in the thermoelectric generator set; the high-pressure steam drum water supply system is used for injecting water in the low-pressure steam drum into a high-pressure economizer, a high-pressure steam drum and a high-pressure evaporator in the thermal power generating unit through a high-pressure water supply pump and supplying temperature reduction water to high-pressure steam in the thermal power generating unit; the low-pressure economizer recycling system is used for maintaining the temperature of flue gas of a low-pressure economizer tube bundle in the thermal power generating unit to be higher than the dew point temperature by heating condensed water; detecting the operation information of a desalted water system, a condensed water system, a starting boiler system, an auxiliary steam system, a shaft seal system, a vacuumizing system, a drum water supply system and a low-pressure economizer recirculation system, and starting a gas turbine to start a grid-connected system if the normal starting is realized and the water supply of a low-pressure drum reaches a preset water level; the gas turbine starting grid-connected system is used for enabling a gas turbine in the thermal power generating unit to accelerate and carry out grid-connected power generation; detecting the operation information of the gas turbine, and starting a main steam temperature and pressure raising system if the gas turbine is successfully ignited; the main steam temperature-raising and pressure-raising system is used for controlling a valve of a main steam pipeline in the thermal power generating unit.
In this embodiment, the drum water supply system includes a low-pressure drum water supply system, a medium-pressure drum water supply system, and a high-pressure drum water supply system. The terminal 102 may continuously detect whether a start condition of another auxiliary system to be started is met based on the operation information of the started auxiliary system in the starting process of the plurality of auxiliary systems to be started, and if yes, the terminal 102 may immediately execute the other auxiliary system to be started without waiting for completion of starting of the auxiliary system being started, and the terminal 102 may start the selected plurality of auxiliary systems to be started according to the rule. For example, in the functional group start mode, the terminal 102 may detect the operation information of the demineralized water system after the demineralized water system is started, and start the condensate system and start the boiler system when the normal operation information of the demineralized water system is detected. Specifically, after the demineralized water system is started, the operator on duty confirms that the devices related to the condensate system starting functional group are available and the starting condition is met through the functional group device availability and the starting condition state display icon displayed by the terminal 102, and then the terminal 102 can execute the condensate system starting functional group. If the auxiliary steam source selects to start the boiler, the attendant also confirms that the relevant equipment of the boiler system starting function group is available and the starting condition is met through the function group equipment availability and the starting condition state display icon displayed by the terminal 102, and then the terminal 102 can execute the boiler system starting function group. The starting function group of the condensed water system is used for providing water sources for a low-pressure steam pocket, a low-pressure bypass desuperheater, a medium-pressure bypass desuperheater, a shaft seal desuperheater, an auxiliary steam supply low-pressure cylinder cooling desuperheater, an auxiliary steam supply high-pressure cylinder pre-heating desuperheater, an auxiliary steam supply shaft seal desuperheater, a low-pressure cylinder water spray, a condenser water curtain protection water spray, a drain flash tank water spray, a vacuum pump water supplement and the like; and the boiler system starting function group is used for providing auxiliary steam for the unit to be started.
The terminal 102 can detect the operation information of the condensate system, and if the operation of the system is detected to be normal and the ignition of the boiler system is started successfully, the terminal 102 can start the auxiliary steam system of which the steam source comes from the starting boiler and the low-pressure steam drum water supply system. Specifically, after the condensate system is started, if the auxiliary steam source selects to start the boiler and the ignition of the boiler is successfully started, the operator on duty confirms that the relevant equipment of the auxiliary steam system starting function group is available and the starting condition is met through the function group equipment availability and the starting condition state display icon displayed by the terminal 102, and then commands the terminal 102 to execute the auxiliary steam system (the steam source is from the starting boiler) starting function group. If the auxiliary steam source selects the adjacent unit and the auxiliary steam parameter index and the related equipment state meet the requirements, the operator on duty confirms that the related equipment of the auxiliary steam system starting function set is available and the starting condition is met through the function set equipment availability and the starting condition state display icon displayed by the terminal 102, and then the terminal 102 is instructed to execute the auxiliary steam system starting function set (the steam source comes from the adjacent unit). If the auxiliary steam source selects the residual steam of the steam source and the parameter index and the state of the relevant equipment meet the requirements, the operator on duty confirms that the relevant equipment of the auxiliary steam system starting functional group is available and the starting condition is met through the functional group equipment availability and the starting condition state display icon displayed by the terminal 102, and then the terminal 102 is instructed to execute the auxiliary steam system (the steam source comes from the residual steam of the steam source) starting functional group. The auxiliary steam system starting function group is used for providing auxiliary steam for low-pressure cylinder cooling, steam turbine shaft sealing, a low-pressure steam pocket deaerator and high-pressure cylinder pre-warming.
The terminal 102 may also detect operational information of the auxiliary steam system, and if it is detected that the temperature of the auxiliary steam in the auxiliary steam system reaches a first temperature threshold, the terminal 102 may activate the shaft seal system. Specifically, after the auxiliary steam is heated to meet the steam requirement for the steam turbine shaft seal, an operator on duty confirms that the relevant equipment of the shaft seal system starting functional group is available and the starting condition is met through the functional group equipment availability and the starting condition state display icon displayed by the terminal 102, and then commands the terminal 102 to execute the shaft seal system starting functional group, so that the shaft seal system is used for providing shaft seal steam for the steam turbine before the steam turbine is vacuumized, and external air is prevented from leaking into a cylinder to be beneficial to the steam turbine to establish vacuum; and the steam turbine is used for preventing steam in the high and medium pressure cylinders from leaking into the atmosphere or the bearing box after being started.
The terminal 102 may also detect operation information of the shaft seal system, and if it is detected that the shaft seal steam temperature in the shaft seal system reaches the second temperature threshold, the terminal 102 may start the vacuum pumping system. Wherein the second temperature threshold and the first temperature threshold may be different. Specifically, after the terminal 102 detects that the temperature of the shaft seal steam rises to meet the vacuum pumping requirement, an attendant confirms that the relevant equipment of the vacuum pumping system starting function set is available and the starting condition is met through the function set equipment availability and the starting condition state display icon displayed by the terminal 102, and then instructs the terminal 102 to execute the vacuum pumping system starting function set, so that the vacuum pumping system is used for pumping air and other non-condensed gases out of the condenser before the unit is started, and establishing vacuum for the steam turbine and the condenser, and is used for pumping the air and other non-condensed gases permeated in the condenser to maintain the vacuum degree of the condenser when the unit normally operates. And after the vacuum degree of the condenser meets the operation requirement of the unit, the system prepares all the execution of the relevant function groups of the breakpoint.
The terminal 102 may also detect operation information of the low-pressure drum water supply system, and if the terminal 102 detects that the low-pressure drum water supply reaches a preset water level, the terminal 102 may start the medium-pressure drum water supply system, the high-pressure drum water supply system, and the low-pressure economizer recirculation system. Specifically, after the condensate system is started, when the system preparation breakpoint related function group is still executed, the terminal 102 may confirm that all the devices related to the low-pressure steam drum water supply function group are available and the starting condition is met by detecting the device availability of the function group and the starting condition status display icon, and then execute the low-pressure steam drum water supply function group. The device is used for injecting the condensed water into the low-pressure steam drum to a water level required by the starting of the unit through the condensed water pump. When the water supply of the low-pressure steam drum reaches a certain water level, the terminal 102 confirms that the related equipment of the medium-pressure steam drum water supply functional group and the high-pressure steam drum water supply functional group are available and the starting condition is met through the functional group equipment availability and starting condition state display icons, and then executes the medium-pressure steam drum water supply functional group and the high-pressure steam drum water supply functional group. The water feeding function group of the medium-pressure steam drum is used for feeding water to the low-pressure steam drum to a certain water level, then injecting water in the low-pressure steam drum to a medium-pressure economizer, the medium-pressure steam drum and a medium-pressure evaporator to the water level required by the start of the unit through a medium-pressure water feeding pump, and simultaneously providing desuperheating water to reheat steam and a high-side pipeline. The high-pressure steam drum water feeding function group is used for feeding water in the low-pressure steam drum to a certain water level, then injecting water in the low-pressure steam drum to the high-pressure economizer, the high-pressure steam drum and the high-pressure evaporator through the high-pressure water feeding pump until the water level is required for starting the unit, and simultaneously supplying temperature reduction water to the high-pressure steam. When the low-pressure steam drum is filled with water to a certain water level, an operator on duty can confirm that the related equipment of the low-pressure economizer recirculation system starting function group is available and the starting condition is met through the function group equipment availability and starting condition state display icon of the terminal 102, and the terminal 102 is made to execute the low-pressure economizer recirculation system starting function group according to the plant area temperature condition, so that after the low-pressure economizer recirculation system is used for filling water to the low-pressure steam drum, the condensed water at the outlet of the first-stage low-pressure economizer is re-injected into the inlet of the first-stage economizer to be heated, and the smoke temperature of the low-pressure economizer pipe bundle is guaranteed to be higher than the dew point temperature.
The terminal 102 may also start the gas turbine to start the grid-connected system when detecting that the operation information of the desalination water system, the condensate system, the start boiler system, the auxiliary steam system, the shaft seal system, the vacuum pumping system, the drum water supply system and the low-pressure economizer recirculation system is normal and the low-pressure drum water supply reaches a preset water level. Specifically, after each auxiliary system is ready and the high, medium and low pressure steam drums are filled with water to a certain water level, an operator on duty can confirm that all relevant equipment of the gas turbine starting grid-connected function set is available and the starting condition is met through the function set equipment availability and the starting condition state display icon of the terminal 102, and then the terminal 102 is made to execute the gas turbine starting grid-connected function set, so that the gas turbine starting grid-connected system is used for gas turbine speed raising and grid-connected power generation. The unit synchronization needs to obtain a scheduling agreement, and before synchronization is executed, a person on duty needs to click a confirmation button.
The terminal 102 may also detect operation information of the gas turbine, and may start the main steam temperature and pressure raising system when detecting that the gas turbine is successfully ignited. The main steam temperature and pressure raising system comprises a low-pressure main steam temperature and pressure raising system, a medium-pressure main steam temperature and pressure raising system and a high-pressure main steam temperature and pressure raising system. Specifically, after the terminal 102 detects that the ignition of the combustion engine is successful, an attendant can respectively confirm that the low-pressure main steam temperature and pressure rise, the medium-pressure main steam temperature and pressure rise and high-pressure main steam temperature and pressure rise function group related equipment are available and the starting condition is met through the function group equipment availability and starting condition state display icons displayed by the terminal 102, and then the terminal 102 is made to execute three function groups of low-pressure main steam temperature and pressure rise, medium-pressure main steam temperature and pressure rise and high-pressure main steam temperature and pressure rise, so that the main steam temperature and pressure rise system is used for operating related valves on a main steam pipeline and waiting for the quality of the main steam to be qualified.
Through this embodiment, the terminal 102 may continuously detect whether the start conditions of other auxiliary systems to be started are met based on the operation information of the started auxiliary systems in the starting processes of the plurality of auxiliary systems to be started, and if yes, the terminal 102 may immediately execute the other auxiliary systems to be started without waiting for the completion of the start of the auxiliary systems being started, thereby improving the starting efficiency of the thermal power generating unit 104.
In one embodiment, further comprising: acquiring a first monitoring icon, and displaying the running states of the basic system and the auxiliary machine system through the first monitoring icon; the first monitoring icon comprises a first color, a second color and a third color; the first color represents that the basic system and/or the auxiliary machine system are not started; the second color represents the starting of the basic system and/or the auxiliary machine system; the third color represents a starting fault of the basic system and/or the auxiliary machine system; acquiring a second monitoring icon, and displaying the available states of the basic system and the auxiliary machine system through the second monitoring icon; the second monitor icon includes a fourth color and a fifth color; a fourth color characterization base system and/or auxiliary system is available; a fifth color represents that the base system and/or the auxiliary system are unavailable; acquiring a third monitoring icon, and displaying whether the starting conditions of the basic system and the auxiliary system are met or not through the third monitoring icon; the third monitor icon includes a sixth color and a seventh color; the sixth color represents that the basic system and/or the auxiliary machine system meet the starting condition; the seventh color characterizes the base system and/or the auxiliary system as not meeting the start-up conditions.
In this embodiment, as shown in fig. 4, fig. 4 is a schematic structural diagram of thermal power unit control in one embodiment. The terminal 102 may display the configuration as in fig. 4 and display the operation information of the basic system and the auxiliary system through the system operation monitoring interface. As shown in fig. 4, a corresponding monitoring icon may be provided for each system in the thermal power generating unit 104. The terminal 102 may display the operating states of the base system and the auxiliary system by using a first monitoring icon, where the first monitoring icon includes a first color, a second color and a third color, the first color indicates that the base system and/or the auxiliary system is not started, the second color indicates that the base system and/or the auxiliary system is started, and the third color indicates that the base system and/or the auxiliary system is started. The terminal 102 may also display the available status of the base system and the auxiliary system through a second monitoring icon. And the second monitoring icon comprises a fourth color and a fifth color, the fourth color represents that the basic system and/or the auxiliary machine system are available, and the fifth color represents that the basic system and/or the auxiliary machine system are unavailable. The terminal 102 may further display whether the starting conditions of the basic system and the auxiliary system are met through a third monitoring icon, where the third monitoring icon may include a sixth color and a seventh color, where the sixth color indicates that the basic system and/or the auxiliary system meet the starting conditions, and the seventh color indicates that the basic system and/or the auxiliary system do not meet the starting conditions.
For example, as shown in FIG. 5, FIG. 5 is an interface diagram of a monitor icon in one embodiment. The terminal 102 may set a group of function group start monitoring icons for each function group in the thermal power generating unit 104, where the function group start monitoring icons include a first monitoring icon, a second monitoring icon, a third monitoring icon, a fourth monitoring icon, and a system key parameter display frame. The first monitoring icon is used for displaying the name of the function group and the current execution state, so that an attendant can visually monitor the current execution state of each function group. When the function group is not executed, the first monitoring icon is displayed in a first color; the first monitor icon is displayed in a flashing second color while the group of functions is being executed; when the execution of the function group is finished and the related parameters meet the normal operation requirements, the first monitoring icon is displayed in a stable second color; and when the function group is overtime or fails, the first monitoring icon is displayed in a flashing third color, and after the function group flow reset button is clicked, the first monitoring icon is displayed in the first color again. The first monitor icon is also used to initiate the set of functions. When the operator on duty clicks the first monitoring icon, the function group monitoring interface is popped up, the interface displays the state information of the function group, such as the process starting condition, the process step condition, the step condition and the like, and the functional operations of process manual/automatic mode switching, process starting, process stepping, equipment state confirmation, process resetting and the like can be carried out. When the unit starting mode of the terminal 102 is a 'functional group starting' mode, if the process is in an automatic mode, and when the starting condition is met, a process starting button is clicked, and the process is automatically and sequentially executed; if the process is in the manual mode, when the starting condition is met, the process starting button is clicked, the process executes the first step, and after the step is executed, the process stepping button is clicked, and the process executes the next step in sequence. When the unit starting mode does not select the 'function group starting' mode, the function group process starting and stepping buttons are forbidden to operate. The second monitoring icon is used for displaying the availability status of the equipment related to the function group, so that an attendant can find and process equipment problems in time. When the function group related equipment is available, the second monitoring icon is displayed in a fourth color; the second monitor icon is displayed in a fifth color when a device associated with the functional group is unavailable. Clicking the second monitoring icon, popping up an availability status display interface of the equipment related to the function group, and viewing the availability status display of each specific equipment. The third monitoring icon is used for displaying whether the process starting condition of the function group is met or not, so that in a 'function group starting' mode of the unit, an operator on duty can send a starting instruction at the first time when the starting condition of the function group is met, and the starting time of the unit is effectively shortened. When the function group process starting condition is met, displaying a third monitoring icon in a sixth color; and when the function group process starting condition is not met, displaying the third monitoring icon in a seventh color. The terminal 102 may use the fourth monitoring icon for the system monitoring interface corresponding to the function group, click the fourth monitoring icon, and skip to view the corresponding system operation monitoring interface, so that an operator on duty can view the corresponding system operation condition during the execution of the function group. The system key parameter display frame is used for displaying key parameter indexes of system operation corresponding to the function group so that an operator on duty can visually monitor key operation parameters of each system, and the second monitoring icon, the third monitoring icon, the fourth monitoring icon and the system key parameter display frame are arranged near the periphery of the first monitoring icon.
In addition, as shown in fig. 6, fig. 6 is an interface schematic diagram of a monitoring icon in another embodiment. The terminal 102 can also set a group of breakpoint starting monitoring icons including a fifth monitoring icon and a sixth monitoring icon for a system preparation breakpoint, a boiler water feeding breakpoint, a gas turbine starting grid-connection breakpoint and a turbine temperature and pressure increasing breakpoint respectively. The fifth monitoring icon is used for displaying the breakpoint name and the current execution state, so that an operator on duty can monitor the current execution state of each breakpoint flow visually. When the breakpoint is not executed, displaying the breakpoint monitoring icon in a first color; when the breakpoint is executing, the breakpoint monitor icon is displayed in a flashing second color; when the breakpoint execution is completed and the related system meets the normal operation requirement, the breakpoint monitoring icon is displayed in a stable second color; when the breakpoint flow execution is overtime or fails, the breakpoint monitoring icon is displayed in a flashing third color, and after the breakpoint flow reset button is clicked, the breakpoint monitoring icon is displayed in the first color again. The fifth monitor icon is also used to start the breakpoint procedure. When the operator on duty clicks the breakpoint monitoring icon, the breakpoint starting monitoring interface is popped up, state information such as breakpoint process starting conditions, process steps and stepping conditions is displayed in the interface, and functional operations such as process manual/automatic mode switching, process starting, process stepping, equipment state confirmation and process resetting can be performed. When the starting mode of the unit selects a 'breakpoint starting' mode, if the process is in an automatic mode, and when the starting condition is met, clicking a process starting button, and automatically and sequentially executing the process; if the process is in the manual mode, when the starting condition is met, the process starting button is clicked, the process executes the first step, and after the step is executed, the process stepping button is clicked, and the process executes the next step in sequence. When the unit starting mode does not select the 'breakpoint starting' mode, the breakpoint flow starting and the stepping button are forbidden to operate. The sixth monitoring icon is used for displaying whether the breakpoint flow starting condition is met or not, so that in a breakpoint starting mode of the unit, an operator on duty can send a starting instruction at the first time when the breakpoint flow starting condition is met, and the starting time of the unit is effectively shortened. When the breakpoint flow starting condition is met, displaying a third monitoring icon in a sixth color; and when the breakpoint flow starting condition is not met, displaying the sixth monitoring icon in a seventh color.
In addition, as shown in fig. 4, since the thermal power generating unit 104 may also be started in a "one-key-on" manner, the terminal 102 may be provided with a unit one-key-on monitoring icon. The unit one-key starting monitoring icon is used for displaying the unit name and the current execution state. When the unit one-key starting process is not executed, displaying a unit one-key starting monitoring icon as a first color; when the unit one-key starting process is executed, the unit one-key starting monitoring icon is displayed to be in a flashing second color; when the one-key starting process is executed and the related system meets the normal operation requirement, displaying the one-key starting monitoring icon of the unit as a stable second color; when the unit one-key starting process is overtime or fails, the unit one-key starting monitoring icon is displayed in a flashing third color, and after the process reset button is clicked, the unit one-key starting monitoring icon is displayed in the first color again. The unit one-key starting monitoring icon is also used for starting the unit one-key starting process. When the operator on duty clicks the unit one-key to start the monitoring icon, the unit one-key start monitoring interface is popped up, the state information of the unit start condition, the process step condition, the step condition and the like is displayed in the interface, and the functional operations of unit one-key start process manual/automatic mode switching, process start, process stepping, equipment state confirmation, process reset and the like can be carried out. When the unit starting mode selects a 'unit one-key starting' mode, if the process is in an automatic mode, and when the starting condition is met, a process starting button is clicked, and the process is automatically and sequentially executed; if the process is in the manual mode, when the starting condition is met, the process starting button is clicked, the process executes the first step, and after the step is executed, the process stepping button is clicked, and the process executes the next step in sequence. When the unit starting mode does not select the 'unit one-key starting' mode, the unit flow starting and stepping buttons are forbidden to operate.
Through the embodiment, the terminal 102 can monitor and display the states of the systems in the thermal power generating unit 104 through a plurality of monitoring icons, so that the working personnel can quickly know the operating state of the thermal power generating unit 104, and the starting efficiency of the thermal power generating unit 104 is improved.
In one embodiment, the thermal power generating unit 104 may also be started according to a "breakpoint start" mode or a "one-touch start" mode. The method comprises the following steps:
when the unit starting mode selects "breakpoint starting", the unit starting operation steps of the terminal 102 are as follows: the terminal 102 confirms that the circulating water system, the open water system, the air compressor system, the sealing oil system and other basic support systems are started to operate normally. The attendant confirms that all function groups related to breakpoint startup are in an automatic mode and related equipment is available through the function group monitoring icon of the terminal 102. And (4) selecting an auxiliary steam source by the operator on duty, and confirming the preselection condition of the redundant configuration equipment. After the on-duty person confirms that the system preparation breakpoint flow starting condition is met through the system preparation breakpoint starting monitoring icon, the on-duty person instructs the terminal 102 to execute the system preparation breakpoint starting flow: (1) the system prepares a breakpoint starting process, and automatically executes a starting functional group of the desalted water system in the first step. (2) After the demineralized water system is started, if the starting condition of the condensed water system is met, the process automatically executes the starting function group of the condensed water system. If the auxiliary steam source selects to start the boiler, the process automatically executes the starting function group of the boiler system at the same time. (3) After the condensate system is started, if the auxiliary steam source selects to start the boiler, the ignition of the boiler is started successfully, and the starting condition of the auxiliary steam system (the steam source comes from the starting boiler) is met, the flow automatically executes the starting function group of the auxiliary steam system (the steam source comes from the starting boiler). If the auxiliary steam source selects the adjacent unit, the auxiliary steam parameter index and the related equipment state meet the requirements and the starting condition of the auxiliary steam system (the steam source is from the adjacent unit) is met, the flow automatically executes the starting function group of the auxiliary steam system (the steam source is from the adjacent unit). If the auxiliary steam source selects the local residual steam, the local residual steam parameter index and the related equipment state to meet the requirements and the starting condition of the auxiliary steam system (the steam source comes from the local residual steam) is met, the flow automatically executes the starting function group of the auxiliary steam system (the steam source comes from the local residual steam). (4) And after the auxiliary steam is heated to meet the steam requirement for the steam turbine shaft seal, if the starting condition of the shaft seal system is met, automatically executing a shaft seal system starting function group by the process. (5) After the temperature of the shaft seal steam rises to meet the vacuum-pumping requirement, if the starting condition of the vacuum-pumping system is met, the terminal 102 automatically executes the starting function group of the vacuum-pumping system. (6) And after the operation of the demineralized water system, the condensate system, the auxiliary steam system, the shaft seal system and the vacuumizing system is normal, the system preparation breakpoint flow is completely executed.
After the condensate system is started, the system preparation breakpoint related function group is still executed, after an operator on duty confirms that the starting condition of the boiler water-feeding breakpoint flow is met through the boiler water-feeding breakpoint starting monitoring icon, the operator on duty commands the terminal 102 to execute the boiler water-feeding breakpoint starting flow: (1) the first step of the boiler water-feeding breakpoint starting process of the terminal 102 is to automatically execute a low-pressure steam drum water-feeding function group. (2) When the terminal 102 detects that the water supply of the low-pressure steam drum reaches a certain water level, if the starting conditions of the medium-pressure steam drum water supply function group and the high-pressure steam drum water supply function group are met, the terminal 102 automatically executes the medium-pressure steam drum water supply function group and the high-pressure steam drum water supply function group. (3) If the start function group of the low-pressure economizer recirculation system needs to be executed in the breakpoint start mode, water is supplied to the low-pressure steam drum to a certain water level, and the start condition of the low-pressure economizer recirculation system is met, and the terminal 102 automatically executes the start function group of the low-pressure economizer recirculation system. (4) And after the terminal 102 detects that the low-pressure steam drum, the medium-pressure steam drum and the high-pressure steam drum are all filled with water to the set water level, determining that the water filling breakpoint process of the boiler is completely executed. After the system preparation breakpoint related system is started and operated normally and the boiler is filled with water to a certain water level, an operator on duty confirms that the starting condition of the starting grid-connected breakpoint of the gas turbine is met through the gas turbine starting grid-connected breakpoint starting monitoring icon of the terminal 102, and the operator on duty commands the terminal 102 to execute the gas turbine starting grid-connected process. After the terminal 102 detects that the gas turbine is successfully ignited, after an operator on duty can confirm that the starting conditions of the turbine main steam temperature-rise and pressure-rise breakpoint are met through the turbine main steam temperature-rise and pressure-rise breakpoint starting monitoring icon displayed in the terminal 102, the terminal 102 can execute a turbine main steam temperature-rise and pressure-rise breakpoint flow, and simultaneously the terminal 102 automatically executes a low-pressure main steam temperature-rise and pressure-rise function group, a medium-pressure main steam temperature-rise and pressure-rise function group and a high-pressure main steam temperature-rise and pressure-rise function group.
When the unit starting mode selects "unit one-key starting", the operation steps of the terminal 102 for starting the unit are as follows: the terminal 102 confirms that the circulating water system, the open water system, the air compressor system, the sealing oil system and other basic support systems are started to operate normally. The attendant confirms that all the function groups related to the one-key start of the unit are in an automatic mode and the related equipment is available through the function group monitoring icon of the terminal 102. And (4) the operator on duty selects the auxiliary steam source to confirm the preselection condition of the redundant configuration equipment. The operator on duty clicks the unit one-key to start the monitoring icon, enters the unit one-key to start the monitoring interface, after confirming that the unit one-key start condition has been satisfied, the operator on duty orders the terminal 102 to execute the unit one-key start process, including: (1) the first step of the unit one-key starting process is that the terminal 102 automatically executes a system preparation breakpoint process. (2) After the condensate system is started, if the terminal 102 detects that the starting condition of the boiler water-feeding breakpoint flow is met, the one-key starting flow of the terminal 102 automatically executes the boiler water-feeding breakpoint flow. (3) After the terminal 102 detects that the vacuum degree of the condenser reaches the standard and the water is fed into the boiler to a certain water level, if the starting condition of the gas turbine starting grid-connected breakpoint flow is met, the one-key starting flow of the terminal 102 automatically executes the gas turbine starting grid-connected breakpoint flow. (4) After the gas turbine is successfully ignited, if the terminal 102 detects that the starting condition of the turbine main steam temperature-raising and pressure-raising breakpoint flow is met, the terminal 102 automatically executes the turbine main steam temperature-raising and pressure-raising breakpoint flow by one-key starting flow.
Through the above embodiment, the terminal 102 detects the starting conditions of other systems while each system is started, and starts the corresponding other systems when the starting conditions are met, so that the starting efficiency of the thermal power generating unit is improved.
It should be understood that although the various steps in the flowcharts of fig. 2-3 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2-3 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed in turn or alternately with other steps or at least some of the other steps or stages.
In one embodiment, as shown in fig. 7, there is provided a thermal power generating unit starting apparatus including: a first initiating module 500, a determining module 502, a second initiating module 504, and a third initiating module 506, wherein:
the first starting module 500 is configured to start a basic system in the thermal power generating unit 104 in response to a starting instruction for the thermal power generating unit 104 to be started.
A determining module 502, configured to, if it is detected that the basic system is started, obtain a preset steam source corresponding to an auxiliary steam system in the thermal power unit 104 and determine a plurality of auxiliary systems to be started of the thermal power unit 104; the auxiliary machine system has corresponding operation information and starting conditions.
And a second starting module 504, configured to start, based on preset operation information of the steam source and the basic system, an auxiliary system that meets a starting condition in the plurality of auxiliary systems to be started.
And a third starting module 506, configured to execute a process of starting other auxiliary systems to be started until all the auxiliary systems to be started are started up, if it is determined that the starting conditions corresponding to the other auxiliary systems to be started are met based on the operation information of the started auxiliary system.
In an embodiment, the determining module 502 is specifically configured to obtain a preset steam source corresponding to an auxiliary steam system in the thermal power generating unit 104; the preset steam source comprises at least one of the following: and starting the boiler, the adjacent units and the residual steam of the machine.
In one embodiment, the first starting module 500 is specifically configured to start a circulating water system in the thermal power generating unit 104 to provide a water source for an open water system; detecting the operation information of a circulating water system, and starting the open water system to cool the air compressor system if the normal operation information of the circulating water system is detected; detecting the operation information of the open water system, and if the normal operation information of the open water system is detected, starting an air compressor system to provide power air and maintenance air for a pneumatic valve in the thermoelectric generator set 104; and detecting the operation information of the air compressor system, and starting the sealing oil system to provide sealing oil for the generator in the thermoelectric generator set 104 if the normal operation information of the air compressor system is detected.
In one embodiment, the determining module 502 is specifically configured to determine, as the plurality of auxiliary equipment systems to be started, a desalination system, a condensate system, a start-up boiler system, an auxiliary steam system with a steam source from the start-up boiler system, a shaft seal system, a vacuum pumping system, a drum water supply system, a low-pressure economizer recirculation system, a gas turbine start-up grid-connected system, and a main steam temperature-raising and pressure-raising system in the thermal power generating unit.
In an embodiment, the second starting module 504 is specifically configured to detect operation information of the basic system, and determine that the desalination system is an auxiliary system meeting a starting condition if normal operation information of the basic system and a preset steam source are detected; the method comprises the steps of starting a desalination water system to provide make-up water and desalination cooling water for starting a boiler system, providing make-up water for a condensate system, providing water seal injection for a shaft seal system, providing start injection water for a vacuum pumping system, and providing cleaning water for a gas turbine start grid-connected system.
In an embodiment, the third starting module 506 is specifically configured to detect the operation information of the demineralized water system, and start the condensate system and the boiler system if the normal operation information of the demineralized water system is detected; the condensate system is used for providing a water source for the auxiliary system to be started; the starting boiler system is used for providing steam for the unit to be started; detecting the operation information of a condensate system, and starting an auxiliary steam system and a low-pressure steam drum water supply system of which the steam source comes from a starting boiler system if the normal operation information of the condensate system and the ignition success of the starting boiler system are detected; the auxiliary steam system is used for providing auxiliary steam for the auxiliary system to be started; the low-pressure steam drum water supply system is used for injecting water into a low-pressure steam drum in the fire-electric generator set; detecting operation information of the auxiliary steam system, and starting the shaft seal system if the temperature of the auxiliary steam in the auxiliary steam system reaches a first temperature threshold value; the shaft seal system is used for providing shaft seal steam for a steam turbine in the thermoelectric generator set; detecting the operation information of the shaft seal system, and starting a vacuum pumping system if the temperature of shaft seal steam in the shaft seal system is detected to reach a second temperature threshold; the vacuumizing system is used for establishing vacuum for a steam turbine and a condenser in the thermal power generating unit; detecting the operation information of a low-pressure steam drum water supply system, and starting a medium-pressure steam drum water supply system, a high-pressure steam drum water supply system and a low-pressure economizer recirculation system if the fact that the low-pressure steam drum water supply reaches a preset water level is detected; the medium-pressure steam drum water supply system is used for injecting water in the low-pressure steam drum to a medium-pressure economizer, a medium-pressure steam drum and a medium-pressure evaporator in the thermoelectric generator set through a medium-pressure water supply pump and supplying desuperheating water to reheat steam and a high-side pipeline in the thermoelectric generator set; the high-pressure steam drum water supply system is used for injecting water in the low-pressure steam drum into a high-pressure economizer, a high-pressure steam drum and a high-pressure evaporator in the thermal power generating unit through a high-pressure water supply pump and supplying temperature reduction water to high-pressure steam in the thermal power generating unit; the low-pressure economizer recycling system is used for maintaining the temperature of flue gas of a low-pressure economizer tube bundle in the thermal power generating unit to be higher than the dew point temperature by heating condensed water; detecting the operation information of a desalted water system, a condensed water system, a starting boiler system, an auxiliary steam system, a shaft seal system, a vacuumizing system, a drum water supply system and a low-pressure economizer recirculation system, and starting a gas turbine to start a grid-connected system if the normal starting is realized and the water supply of a low-pressure drum reaches a preset water level; the gas turbine starting grid-connected system is used for enabling a gas turbine in the thermal power generating unit to accelerate and carry out grid-connected power generation; detecting the operation information of the gas turbine, and starting a main steam temperature and pressure raising system if the gas turbine is successfully ignited; the main steam temperature-raising and pressure-raising system is used for controlling a valve of a main steam pipeline in the thermal power generating unit.
In one embodiment, the above apparatus further comprises: the monitoring module is used for acquiring a first monitoring icon and displaying the running states of the basic system and the auxiliary machine system through the first monitoring icon; the first monitoring icon comprises a first color, a second color and a third color; the first color represents that the basic system and/or the auxiliary machine system are not started; the second color represents the starting of the basic system and/or the auxiliary machine system; the third color represents a starting fault of the basic system and/or the auxiliary machine system; acquiring a second monitoring icon, and displaying the available states of the basic system and the auxiliary machine system through the second monitoring icon; the second monitor icon includes a fourth color and a fifth color; a fourth color characterization base system and/or auxiliary system is available; a fifth color represents that the base system and/or the auxiliary system are unavailable; acquiring a third monitoring icon, and displaying whether the starting conditions of the basic system and the auxiliary system are met or not through the third monitoring icon; the third monitor icon includes a sixth color and a seventh color; the sixth color represents that the basic system and/or the auxiliary machine system meet the starting condition; the seventh color characterizes the base system and/or the auxiliary system as not meeting the start-up conditions.
For specific definition of the thermal power unit starting device, reference may be made to the definition of the thermal power unit starting method above, and details are not described here. All or part of the modules in the thermal power generating unit starting device can be realized through software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as shown in fig. 8. The computer device includes a processor, a memory, a communication interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, an operator network, NFC (near field communication) or other technologies. The computer program is executed by a processor to realize a thermal power generating unit starting method. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that the architecture shown in fig. 8 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided, which includes a memory and a processor, wherein the memory stores a computer program, and the processor implements the thermal power generating unit starting method when executing the computer program.
In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, which when executed by a processor implements the thermal power unit starting method described above.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A starting method of a thermal power generating unit is characterized by comprising the following steps:
responding to a starting instruction aiming at a thermal power generating unit to be started, and starting a basic system in the thermal power generating unit;
if the basic system is detected to be started completely, acquiring a preset steam source corresponding to an auxiliary steam system in the thermal power generating unit and determining a plurality of auxiliary machine systems to be started of the thermal power generating unit; the auxiliary machine system has corresponding operation information and starting conditions;
starting an auxiliary machine system which accords with starting conditions in the plurality of auxiliary machine systems to be started based on the preset steam source and the operation information of the basic system;
and if the starting conditions corresponding to other auxiliary systems to be started are determined to be met based on the operation information of the started auxiliary systems, executing a process of starting the other auxiliary systems to be started until the plurality of auxiliary systems to be started are all started.
2. The method of claim 1, wherein the base system comprises a circulating water system, an open water system, an air compressor system, and a seal oil system;
the starting of the basic system in the thermal power generating unit comprises the following steps:
starting a circulating water system in the thermal power generating unit to provide a water source for the open water system;
detecting the operation information of the circulating water system, and starting the open water system to cool the air compressor system if the normal operation information of the circulating water system is detected;
detecting the operation information of the open water system, and if the normal operation information of the open water system is detected, starting the air compressor system to provide power air and maintenance air for a pneumatic valve in the thermal power generating unit;
and detecting the operation information of the air compressor system, and if the normal operation information of the air compressor system is detected, starting the sealing oil system to provide sealing oil for a generator in the thermal power generating unit.
3. The method according to claim 1, wherein the obtaining of the preset steam source corresponding to the auxiliary steam system in the thermal power generating unit comprises:
acquiring a preset steam source corresponding to an auxiliary steam system in the thermal power generating unit; the preset steam source comprises at least one of the following components: and starting the boiler, the adjacent units and the residual steam of the machine.
4. The method of claim 3, wherein if the predetermined steam source is a start-up boiler, determining that the auxiliary steam system is an auxiliary steam system with a steam source from the start-up boiler system;
the determining of the plurality of auxiliary machine systems to be started of the thermal power generating unit comprises the following steps:
and determining a desalted water system, a condensed water system, a starting boiler system, an auxiliary steam system with a steam source from the starting boiler system, a shaft seal system, a vacuum pumping system, a drum water supply system, a low-pressure economizer recirculation system, a gas turbine starting grid-connected system and a main steam temperature and pressure raising system in the thermal power generating unit as the auxiliary machine systems to be started.
5. The method according to claim 4, wherein starting up the auxiliary system meeting the starting condition in the plurality of auxiliary systems to be started up based on the preset steam source and the operation information of the basic system comprises:
detecting the operation information of the basic system, and if the normal operation information of the basic system and the preset steam source are detected to be determined, determining that the desalination water system is an auxiliary system meeting the starting condition;
and starting the desalted water system to provide make-up water and desalted cooling water for the boiler starting system, make-up water for the condensed water system, water seal injection for the shaft seal system, starting water injection for the vacuum-pumping system and cleaning water for the gas turbine starting grid-connected system.
6. The method of claim 4, wherein the drum watering system comprises a low pressure drum watering system, a medium pressure drum watering system, and a high pressure drum watering system;
if it is determined that the starting conditions corresponding to other auxiliary systems to be started are met based on the operation information of the started auxiliary system, executing a process for starting the other auxiliary systems to be started, including:
detecting the operation information of the demineralized water system, and starting the condensate system and the boiler system if the normal operation information of the demineralized water system is detected; the condensate system is used for providing a water source for the auxiliary system to be started; the starting boiler system is used for providing steam for the unit to be started;
detecting the operation information of the condensate system, and starting an auxiliary steam system of which the steam source comes from a starting boiler system and a low-pressure steam drum water supply system if the normal operation information of the condensate system and the successful ignition of the starting boiler system are detected; the auxiliary steam system is used for providing auxiliary steam for the auxiliary system to be started; the low-pressure steam drum water supply system is used for injecting water into a low-pressure steam drum in the thermal power generating unit;
detecting operation information of the auxiliary steam system, and starting the shaft seal system if the temperature of the auxiliary steam in the auxiliary steam system reaches a first temperature threshold value; the shaft seal system is used for providing shaft seal steam for a steam turbine in the thermal power generating unit;
detecting operation information of the shaft seal system, and starting the vacuum pumping system if the shaft seal steam temperature in the shaft seal system reaches a second temperature threshold value; the vacuum pumping system is used for establishing vacuum for a steam turbine and a condenser in the thermal power generating unit;
detecting the operation information of the low-pressure steam drum water supply system, and starting the medium-pressure steam drum water supply system, the high-pressure steam drum water supply system and the low-pressure economizer recirculation system if the low-pressure steam drum water supply system reaches a preset water level; the medium-pressure steam drum water supply system is used for injecting water in the low-pressure steam drum into a medium-pressure economizer, a medium-pressure steam drum and a medium-pressure evaporator in the thermal power generating unit through a medium-pressure water supply pump and supplying desuperheating steam and high-side pipelines in the thermal power generating unit with desuperheating water; the high-pressure steam drum water supply system is used for injecting water in the low-pressure steam drum into a high-pressure economizer, a high-pressure steam drum and a high-pressure evaporator in the thermal power generating unit through a high-pressure water feed pump and supplying temperature-reducing water to high-pressure steam in the thermal power generating unit; the low-pressure economizer recycling system is used for maintaining the temperature of the flue gas of a low-pressure economizer tube bundle in the thermal power generating unit to be higher than the dew point temperature through heating condensed water;
detecting the operation information of the desalted water system, the condensed water system, the starting boiler system, the auxiliary steam system, the shaft seal system, the vacuumizing system, the drum water supply system and the low-pressure economizer recirculation system, and starting the gas turbine to start the grid-connected system if the operation information is normally started and the water supply of the low-pressure drum reaches a preset water level; the gas turbine starting grid-connected system is used for enabling a gas turbine in the thermal power generating unit to accelerate and carry out grid-connected power generation;
detecting the operation information of the gas turbine, and starting the main steam temperature and pressure raising system if the gas turbine is successfully ignited; and the main steam temperature and pressure raising system is used for controlling a valve of a main steam pipeline in the thermal power generating unit.
7. The method of claim 1, further comprising:
acquiring a first monitoring icon, and displaying the operation states of the basic system and the auxiliary machine system through the first monitoring icon; the first monitoring icon comprises a first color, a second color and a third color; the first color characterizes that the base system and/or the auxiliary system are not started; the second color is characterized in the starting of the basic system and/or the auxiliary system; the third color characterizes a start-up fault of the base system and/or the auxiliary system;
acquiring a second monitoring icon, and displaying the available states of the basic system and the auxiliary system through the second monitoring icon; the second monitor icon comprises a fourth color and a fifth color; the fourth color characterizes the base system and/or the auxiliary system as being available; the fifth color characterizes the base system and/or the auxiliary system as unavailable;
acquiring a third monitoring icon, and displaying whether the starting conditions of the basic system and the auxiliary system are met or not through the third monitoring icon; the third monitor icon includes a sixth color and a seventh color; the sixth color represents that the basic system and/or the auxiliary system meet a starting condition; the seventh color characterizes the base system and/or the auxiliary system not meeting a start-up condition.
8. A starting apparatus for a thermal power generating unit, the apparatus comprising:
the system comprises a first starting module, a second starting module and a control module, wherein the first starting module is used for responding to a starting instruction aiming at a thermal power generating unit to be started and starting a basic system in the thermal power generating unit;
the determining module is used for acquiring a preset steam source corresponding to an auxiliary steam system in the thermal power generating unit and determining a plurality of auxiliary machine systems to be started of the thermal power generating unit if the basic system is detected to be started; the auxiliary machine system has corresponding operation information and starting conditions;
the second starting module is used for starting an auxiliary machine system which accords with starting conditions in the plurality of auxiliary machine systems to be started based on the preset steam source and the operation information of the basic system;
and the third starting module is used for executing a process of starting other auxiliary systems to be started until the plurality of auxiliary systems to be started are all started up if the starting conditions corresponding to the other auxiliary systems to be started are determined to be met based on the operation information of the started auxiliary systems.
9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method of any of claims 1 to 7.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110758414.0A CN113467395A (en) | 2021-07-05 | 2021-07-05 | Thermal power generating unit starting method and device, computer equipment and storage medium |
| PCT/CN2021/114277 WO2023279496A1 (en) | 2021-07-05 | 2021-08-24 | Thermal power generation unit starting method and apparatus, computer device, and storage medium |
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| CN202110758414.0A CN113467395A (en) | 2021-07-05 | 2021-07-05 | Thermal power generating unit starting method and device, computer equipment and storage medium |
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| CN113467395A true CN113467395A (en) | 2021-10-01 |
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| CN202110758414.0A Pending CN113467395A (en) | 2021-07-05 | 2021-07-05 | Thermal power generating unit starting method and device, computer equipment and storage medium |
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| WO (1) | WO2023279496A1 (en) |
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