CN113315096A - Water-oil-ash bus power loss processing method and system - Google Patents
Water-oil-ash bus power loss processing method and system Download PDFInfo
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- CN113315096A CN113315096A CN202110466067.4A CN202110466067A CN113315096A CN 113315096 A CN113315096 A CN 113315096A CN 202110466067 A CN202110466067 A CN 202110466067A CN 113315096 A CN113315096 A CN 113315096A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00004—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the power network being locally controlled
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/001—Methods to deal with contingencies, e.g. abnormalities, faults or failures
- H02J3/0012—Contingency detection
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
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Abstract
The invention discloses a method and a system for treating power loss of a water-oil-ash bus, wherein the method comprises the following steps: when a protection action signal of power loss of a water-oil-ash bus sent by a DCS is detected, determining a power loss type according to the protection action signal, and determining a preset processing strategy according to the power loss type and a first preset corresponding relation; generating a plurality of tasks to be executed comprising execution posts according to the preset processing strategy and a second preset corresponding relation; and issuing the task to be executed to a target terminal so that each person on duty performs power-off treatment according to the task to be executed, and automatically dividing and issuing the task to be executed after the power-off fault of the water-oil-ash bus occurs, thereby improving the treatment efficiency of the water-oil-ash bus when the power-off fault occurs and further improving the running stability of the power plant.
Description
Technical Field
The application relates to the field of electrical technologies of power plants, in particular to a method and a system for treating power loss of a water-oil-ash bus.
Background
The water-oil-ash bus is an important service equipment of a power plant, and is connected with a plurality of important loads related to industrial water, circulating water, fuel oil, desulfurization, ash removal and the like, and the water-oil-ash bus can lose power due to various reasons. In order to improve the power supply reliability and avoid loss caused by power failure, the load on the voltage-loss bus needs to be transferred to a power supply which normally works, and the related load is more and the range is larger.
At present, although a corresponding accident emergency plan is compiled in a thermal power plant, the plan requires that personnel in the thermal power plant need to complete the treatment of related equipment after a bus is powered off, the treatment content covers a large amount of safety and non-safety related system equipment in the thermal power plant, the personnel need to perform task division according to experience, and the unreasonable task distribution is easy to occur, so that the accident treatment efficiency is low.
Therefore, how to improve the processing efficiency when the hydraulic putty bus loses power is a technical problem to be solved at present.
Disclosure of Invention
The invention provides a method for treating power loss of a water-oil-ash bus, which is used for solving the technical problem of low treatment efficiency in the prior art when the water-oil-ash bus is in power loss.
The water-oil-ash bus comprises a first section of bus and a second section of bus which are powered by different power supplies, and the method comprises the following steps:
when a protection action signal of power loss of a water and oil ash bus sent by a DCS is detected, determining a power loss type according to the protection action signal, wherein the power loss type comprises the power loss of the first section of bus, the power loss of the second section of bus, or the power loss of the first section of bus and the power loss of the second section of bus simultaneously;
determining a preset processing strategy according to the power loss type and a first preset corresponding relation, wherein the first preset corresponding relation is the corresponding relation between the power loss type and the preset processing strategy;
generating a plurality of tasks to be executed comprising execution posts according to the preset processing strategy and a second preset corresponding relation, wherein the second preset corresponding relation is the corresponding relation between each processing step in the preset processing strategy and the post;
and issuing the task to be executed to a target terminal so that each person on duty performs power-off processing according to the task to be executed, wherein the target terminal is a terminal of the person on duty corresponding to the execution post.
In some embodiments of the present application, the tasks to be executed include DCS tasks and local tasks, and before the tasks to be executed are issued to a target terminal, so that each attendant performs power loss processing according to the tasks to be executed, the method further includes:
acquiring positioning information sent by each terminal;
and determining a target terminal corresponding to the local task according to the positioning information closest to the execution site of the local task.
In some embodiments of the present application, after the task to be executed is issued to a target terminal, so that each attendant performs power loss processing according to the task to be executed, the method further includes:
receiving task execution results sent by each target terminal;
judging whether an unfinished task exists at the off-duty time point of the on-duty personnel according to the task execution result;
and if so, sending the uncompleted task to a terminal of the next attendant handed over correspondingly to the attendant.
In some embodiments of the present application, if the power loss type is the power loss of the first section of bus, the preset processing policy is a first preset processing policy, where the first preset processing policy includes:
checking the disconnection of a power switch of the first section of bus, checking the corresponding connection jump of a load power switch connected with the first section of bus, and otherwise, manually disconnecting the load power switch;
checking whether a contact switch of a 380V bus under the first section of bus is closed automatically or manually;
checking and trying to recover fuel specialty, desulfurization specialty, and ash bank specialty trip equipment;
if the first section of bus is in voltage loss caused by the power loss of a first power supply bus corresponding to the first section of bus, disconnecting a switch of a load carried by the first power supply bus, checking the voltage loss reason of the first power supply bus, and recovering the power supply of the first section of bus after the first power supply bus is recovered to be powered;
checking the load state of the first section of bus on site;
monitoring the current and power of the second section of bus, and immediately stopping partial load on the second section of bus if the load carried by the second section of bus is over limit, so as to ensure the running of a pump, an oil depot and a seawater desalination system;
recovering the pump-following cooling fan tripped after power failure, and if the pressure of the industrial jellyfish pipe is lower than a threshold value, increasing one industrial water pump to operate;
isolating fault points in time according to the protection action condition related to the first section of bus and informing of maintenance treatment;
if the subordinate 380V bus tie switch is not successful in self-closing, the reason is rapidly found out, and the maintenance is carried out;
if the lower-level equipment fault override trip exists, the operation of the first section of bus is recovered after the lower-level equipment fault override trip is isolated;
and after the fault processing of the first section of bus is finished, recovering the power supply of the first section of bus as soon as possible, and gradually recovering the subordinate load of the first section of bus to a pre-trip state.
In some embodiments of the present application, if the power loss type is the power loss of the second section of bus, the preset processing policy is a second preset processing policy, where the second preset processing policy includes:
checking the disconnection of a power switch of the second section of bus, checking the corresponding connection jump of a load power switch connected with the second section of bus, and otherwise, manually disconnecting the load power switch;
checking whether a contact switch of a 380V bus under the second section of bus is closed automatically or manually;
checking and trying to recover trip equipment of the fuel specialty, the desulfurization specialty, and the ash bank specialty;
if the second section of bus is in voltage loss caused by the power loss of a second power supply bus corresponding to the second section of bus, disconnecting a switch of a load carried by the second power supply bus, checking the reason of the voltage loss of the second power supply bus, and recovering the power supply of the second section of bus after the second power supply bus recovers power supply;
checking the load state of the second section of bus on site;
monitoring the current and power of the first section of bus, and immediately stopping partial load on the first section of bus if the load carried by the first section of bus is over limit, so as to ensure that the circulating pump, the oil depot and the sea fresh water system run;
recovering a pump-following cooling fan tripped after power failure, and if the pressure of the industrial jellyfish pipe is lower than a threshold value, starting an industrial water pump to operate;
isolating fault points in time according to the protection action condition related to the second section of bus and informing of maintenance treatment;
if the subordinate 380V bus tie switch is not successful in self-closing, the reason is rapidly found out, and the maintenance is carried out;
if the lower-level equipment fault override trip exists, isolating the lower-level equipment fault override trip, and then recovering the operation of the second-section bus;
and after the fault processing of the second section of bus is finished, recovering the power supply of the second section of bus as soon as possible, and gradually recovering the subordinate load of the second section of bus to the pre-trip state.
In some embodiments of the present application, the first preset processing policy and the second preset processing policy further include:
judging whether the preset important load is stopped in time, and properly adjusting the operation of the host computer so as to avoid tripping the host computer;
the in-situ inspection of a circulating water system and a seawater desalination system is enhanced, dangerous operation working conditions are eliminated, the operation monitoring of an industrial water system is enhanced, and the tripping of an ash silo air compressor caused by the low industrial water main pipe is prevented;
the method comprises the following steps that after the auxiliary machine is subjected to power failure and tripping, a power switch low-voltage signal needs to be reset on site before starting is recovered;
if the partial interconnection switches are not closed by themselves and no protective action signal exists, switching on the interconnection switches manually;
if rainstorm occurs, the power supply of the rainwater pump house should be recovered as soon as possible.
In some embodiments of the present application, if the power loss type is that the first section of bus and the second section of bus lose power simultaneously, the preset processing policy is a third preset processing policy, where the third preset processing policy includes:
confirming that the MCC power supply of the circulating pump room is lost power and the working power switch is tripped, if the MCC power supply is not tripped, manually opening a brake, manually switching on a standby power switch from a PC of a central control building, and checking whether the state of a disc valve at an outlet of the circulating pump is normal;
checking that the power switch of the first section of bus and the power switch of the second section of bus are automatically disconnected, or manually pulling the power switches apart;
checking and trying to recover trip equipment of the fuel specialty, the desulfurization specialty, and the ash bank specialty;
checking whether the load switches of the first section of bus and the second section of bus are tripped or not on site, and otherwise, manually pulling the load switches off;
if the first power bus and the second power bus are power-off, disconnecting switches of loads carried by the first power bus and the second power bus, checking the reason of voltage loss of the first power bus and the second power bus, and recovering power supply of the first section of bus and the second section of bus after the first power bus and the second power bus are power-on;
if the lower-level equipment is subjected to fault override trip, the lower-level equipment is disconnected, and the operation of the water-oil-ash bus is recovered;
if the first section of bus and the second section of bus have obvious faults, immediately isolating fault points, informing overhaul to repair, and simultaneously making bus overhaul safety measures to process as soon as possible;
except that the power is supplied by a PC (personal computer) in a pump room along with an MCC (Motor control center), the integrated pump room and the fuel pump room lose power supply, industrial water is interrupted, if a boiler is in an oil feeding state and is adjusted in combustion, if the combustion is unstable and cannot be maintained, furnace shutdown preparation is needed, and the rising speed of the liquid level of the rainwater pump room is closely monitored;
the method comprises the following steps of contacting related personnel to start the diesel oil in the comprehensive pump room and the diesel oil in the rainwater pump room, trying to recover the operation of an industrial water pump, and recovering the operation of a rainwater submersible pump as soon as possible;
if the water-oil-ash bus is power-off and cannot be recovered in a short time, the water level of the chemical industrial water tank cannot be maintained, and normal water supply of a desulfurization system is influenced, a leader should be asked whether to apply for dispatching a shutdown part of unit sets.
Correspondingly, the invention also provides a water-oil-ash bus power loss processing system, wherein the water-oil-ash bus comprises a first section of bus and a second section of bus which are powered by different power supplies, and the system comprises:
the first determining module is used for determining a power loss type according to a protection action signal when the protection action signal of the water-oil-ash bus power loss sent by the DCS is detected, wherein the power loss type comprises the power loss of the first section of bus, the power loss of the second section of bus, or the simultaneous power loss of the first section of bus and the second section of bus;
the second determining module is used for determining a preset processing strategy according to the power loss type and a first preset corresponding relation, wherein the first preset corresponding relation is the corresponding relation between the power loss type and the preset processing strategy;
the generating module is used for generating a plurality of tasks to be executed comprising execution posts according to the preset processing strategy and a second preset corresponding relation, wherein the second preset corresponding relation is the corresponding relation between each processing step in the preset processing strategy and the posts;
and the issuing module is used for issuing the task to be executed to a target terminal so that each on-duty person performs power-off processing according to the task to be executed, and the target terminal is a terminal of the on-duty person corresponding to the execution post.
In some embodiments of the present application, the tasks to be performed include DCS tasks and in-place tasks, and the system further includes a third determining module configured to:
acquiring positioning information sent by each terminal;
and determining a target terminal corresponding to the local task according to the positioning information closest to the execution site of the local task.
In some embodiments of the present application, the issuing module is further configured to:
receiving task execution results sent by each target terminal;
judging whether an unfinished task exists at the off-duty time point of the on-duty personnel according to the task execution result;
and if so, sending the uncompleted task to a terminal of the next attendant handed over correspondingly to the attendant.
Compared with the prior art, the invention has the following beneficial effects:
the invention discloses a method and a system for treating power loss of a water-oil-ash bus, wherein the method comprises the following steps: when a protection action signal of power loss of a water-oil-ash bus sent by a DCS is detected, determining a power loss type according to the protection action signal, and determining a preset processing strategy according to the power loss type and a first preset corresponding relation, wherein the first preset corresponding relation is the corresponding relation between the power loss type and the preset processing strategy; generating a plurality of tasks to be executed comprising execution posts according to the preset processing strategy and a second preset corresponding relation, wherein the second preset corresponding relation is the corresponding relation between each processing step in the preset processing strategy and the post; and issuing the task to be executed to a target terminal so that each person on duty performs power-off treatment according to the task to be executed, and automatically dividing and issuing the task to be executed after the power-off fault of the water-oil-ash bus occurs, thereby improving the treatment efficiency of the water-oil-ash bus when the power-off fault occurs and further improving the running stability of the power plant.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 shows a schematic flow chart of a method for processing power loss of a water-oil-ash bus according to an embodiment of the present invention;
fig. 2 shows a schematic structural diagram of a water-oil-ash bus power loss processing system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the invention provides a method for processing power loss of a water-oil-ash bus, wherein the water-oil-ash bus comprises a first section of bus and a second section of bus which are powered by different power supplies, and as shown in figure 1, the method comprises the following steps:
step S101, when a protection action signal of water and oil ash bus power loss sent by DCS is detected, determining a power loss type according to the protection action signal, wherein the power loss type comprises that the first section of bus power loss, the second section of bus power loss, or the first section of bus and the second section of bus power loss simultaneously.
In this embodiment, the water putty bus includes a first section of bus and a second section of bus that are powered by different power supplies, and the voltage class of water putty bus can be 6kV, and for improving the power supply reliability, the first section of bus and the second section of bus are powered by different power supplies, and this power supply can be two sections of 6kV buses. Those skilled in the art can also adopt 10kV as the voltage level of the water putty bus according to actual needs. The DCS monitors the water and oil dust bus in real time, different protection action signals represent different bus power loss conditions, and when the protection action signals of the water and oil dust bus power loss are detected, the power loss type is determined according to the protection action signals, and the power loss type comprises that a first section of bus power loss or a second section of bus power loss or the first section of bus and the second section of bus power loss simultaneously.
Step S102, a preset processing strategy is determined according to the power loss type and a first preset corresponding relation, wherein the first preset corresponding relation is the corresponding relation between the power loss type and the preset processing strategy.
In this embodiment, a corresponding relationship between the power loss type and the preset processing policy is pre-established, and after the power loss type is determined, the preset processing policy is determined according to the power loss type and the first preset corresponding relationship.
The skilled person can preset different preset processing strategies according to actual needs, which does not affect the scope of protection of the present application.
In order to ensure that the bus is correctly powered off, in some embodiments of the present application, if the power-off type is the power-off of the first section of the bus, the preset processing policy is a first preset processing policy, where the first preset processing policy includes:
checking the disconnection of a power switch of the first section of bus, checking the corresponding connection jump of a load power switch connected with the first section of bus, and otherwise, manually disconnecting the load power switch;
checking whether a contact switch of a 380V bus under the first section of bus is closed automatically or manually;
checking and trying to recover fuel specialty, desulfurization specialty, and ash bank specialty trip equipment;
if the first section of bus is in voltage loss caused by the power loss of a first power supply bus corresponding to the first section of bus, disconnecting a switch of a load carried by the first power supply bus, checking the voltage loss reason of the first power supply bus, and recovering the power supply of the first section of bus after the first power supply bus is recovered to be powered;
checking the load state of the first section of bus on site;
monitoring the current and power of the second section of bus, and immediately stopping partial load on the second section of bus if the load carried by the second section of bus is over limit, so as to ensure the running of a pump, an oil depot and a seawater desalination system;
recovering the pump-following cooling fan tripped after power failure, and if the pressure of the industrial jellyfish pipe is lower than a threshold value, increasing one industrial water pump to operate;
isolating fault points in time according to the protection action condition related to the first section of bus and informing of maintenance treatment;
if the subordinate 380V bus tie switch is not successful in self-closing, the reason is rapidly found out, and the maintenance is carried out;
if the lower-level equipment fault override trip exists, the operation of the first section of bus is recovered after the lower-level equipment fault override trip is isolated;
and after the fault processing of the first section of bus is finished, recovering the power supply of the first section of bus as soon as possible, and gradually recovering the subordinate load of the first section of bus to a pre-trip state.
The person skilled in the art can flexibly set different first preset processing strategies according to actual needs, which does not affect the scope of the present application.
In order to ensure that the bus is correctly powered off, in some embodiments of the present application, if the power-off type is the power-off of the second section of the bus, the preset processing policy is a second preset processing policy, where the second preset processing policy includes:
checking the disconnection of a power switch of the second section of bus, checking the corresponding connection jump of a load power switch connected with the second section of bus, and otherwise, manually disconnecting the load power switch;
checking whether a contact switch of a 380V bus under the second section of bus is closed automatically or manually;
checking and trying to recover trip equipment of the fuel specialty, the desulfurization specialty, and the ash bank specialty;
if the second section of bus is in voltage loss caused by the power loss of a second power supply bus corresponding to the second section of bus, disconnecting a switch of a load carried by the second power supply bus, checking the reason of the voltage loss of the second power supply bus, and recovering the power supply of the second section of bus after the second power supply bus recovers power supply;
checking the load state of the second section of bus on site;
monitoring the current and power of the first section of bus, and immediately stopping partial load on the first section of bus if the load carried by the first section of bus is over limit, so as to ensure that the circulating pump, the oil depot and the sea fresh water system run;
recovering a pump-following cooling fan tripped after power failure, and if the pressure of the industrial jellyfish pipe is lower than a threshold value, starting an industrial water pump to operate;
isolating fault points in time according to the protection action condition related to the second section of bus and informing of maintenance treatment;
if the subordinate 380V bus tie switch is not successful in self-closing, the reason is rapidly found out, and the maintenance is carried out;
if the lower-level equipment fault override trip exists, isolating the lower-level equipment fault override trip, and then recovering the operation of the second-section bus;
and after the fault processing of the second section of bus is finished, recovering the power supply of the second section of bus as soon as possible, and gradually recovering the subordinate load of the second section of bus to the pre-trip state.
Those skilled in the art can flexibly set different second preset processing strategies according to actual needs, which does not affect the scope of the present application.
In order to ensure that the bus is correctly powered off, in some embodiments of the present application, the first preset processing policy and the second preset processing policy further include:
judging whether the preset important load is stopped in time, and properly adjusting the operation of the host computer so as to avoid tripping the host computer;
the in-situ inspection of a circulating water system and a seawater desalination system is enhanced, dangerous operation working conditions are eliminated, the operation monitoring of an industrial water system is enhanced, and the tripping of an ash silo air compressor caused by the low industrial water main pipe is prevented;
the method comprises the following steps that after the auxiliary machine is subjected to power failure and tripping, a power switch low-voltage signal needs to be reset on site before starting is recovered;
if the partial interconnection switches are not closed by themselves and no protective action signal exists, switching on the interconnection switches manually;
if rainstorm occurs, the power supply of the rainwater pump house should be recovered as soon as possible.
In order to ensure that the bus is correctly powered off, in some embodiments of the present application, if the power-off type is that the first section of bus and the second section of bus are powered off simultaneously, the preset processing policy is a third preset processing policy, where the third preset processing policy includes:
confirming that the MCC power supply of the circulating pump room is lost power and the working power switch is tripped, if the MCC power supply is not tripped, manually opening a brake, manually switching on a standby power switch from a PC of a central control building, and checking whether the state of a disc valve at an outlet of the circulating pump is normal;
checking that the power switch of the first section of bus and the power switch of the second section of bus are automatically disconnected, or manually pulling the power switches apart;
checking and trying to recover trip equipment of the fuel specialty, the desulfurization specialty, and the ash bank specialty;
checking whether the load switches of the first section of bus and the second section of bus are tripped or not on site, and otherwise, manually pulling the load switches off;
if the first power bus and the second power bus are power-off, disconnecting switches of loads carried by the first power bus and the second power bus, checking the reason of voltage loss of the first power bus and the second power bus, and recovering power supply of the first section of bus and the second section of bus after the first power bus and the second power bus are power-on;
if the lower-level equipment is subjected to fault override trip, the lower-level equipment is disconnected, and the operation of the water-oil-ash bus is recovered;
if the first section of bus and the second section of bus have obvious faults, immediately isolating fault points, informing overhaul to repair, and simultaneously making bus overhaul safety measures to process as soon as possible;
except that the power is supplied by a PC (personal computer) in a pump room along with an MCC (Motor control center), the integrated pump room and the fuel pump room lose power supply, industrial water is interrupted, if a boiler is in an oil feeding state and is adjusted in combustion, if the combustion is unstable and cannot be maintained, furnace shutdown preparation is needed, and the rising speed of the liquid level of the rainwater pump room is closely monitored;
the method comprises the following steps of contacting related personnel to start the diesel oil in the comprehensive pump room and the diesel oil in the rainwater pump room, trying to recover the operation of an industrial water pump, and recovering the operation of a rainwater submersible pump as soon as possible;
if the water-oil-ash bus is power-off and cannot be recovered in a short time, the water level of the chemical industrial water tank cannot be maintained, and normal water supply of a desulfurization system is influenced, a leader should be asked whether to apply for dispatching a shutdown part of unit sets.
Those skilled in the art can flexibly set different third preset processing strategies according to actual needs, which does not affect the scope of the present application.
Step S103, generating a plurality of tasks to be executed including execution posts according to the preset processing strategy and a second preset corresponding relation, wherein the second preset corresponding relation is the corresponding relation between each processing step in the preset processing strategy and the posts.
In this embodiment, the power plant staff are divided into different work posts, the different work posts have different post responsibilities, the corresponding relationship between each processing step in the preset processing strategy and the post is also pre-established, after the preset processing strategy is determined, a plurality of to-be-executed tasks including the execution post are generated according to the preset processing strategy and the second preset corresponding relationship, that is, the to-be-executed tasks are generated by dividing the to-be-processed strategy according to different execution posts.
And step S104, issuing the task to be executed to a target terminal so that each person on duty performs power-off processing according to the task to be executed, wherein the target terminal is a terminal of the person on duty corresponding to the execution post.
In this embodiment, each person on duty is equipped with a terminal, each terminal has a unique identifier, the person on duty registers through the terminal after going on duty, after determining the task to be executed, the terminal of the target person on duty corresponding to the execution position is determined according to the execution position in the task to be executed, that is, the target terminal is determined, and the task to be executed is issued to the target terminal according to the identifier of the target terminal.
In order to improve the accident handling efficiency, in some embodiments of the present application, the tasks to be executed include DCS tasks and local tasks, and before the tasks to be executed are issued to a target terminal, so that each operator on duty performs power failure handling according to the tasks to be executed, the method further includes:
acquiring positioning information sent by each terminal;
and determining a target terminal corresponding to the local task according to the positioning information closest to the execution site of the local task.
In this embodiment, the tasks to be executed include DCS tasks and local tasks, where a DCS task is a task that can be operated remotely, that is, can be operated on an execution interface of an operator station; the on-site task is a task that the operator on duty must go to the site of the equipment to operate, and is long in time consumption because different equipment is distributed in different areas. In order to improve the efficiency of the on-site tasks, the positioning information sent by each target terminal, namely the positioning information of the on-duty personnel, is obtained, the target terminal corresponding to the on-site tasks is determined according to the positioning information closest to the execution site of the on-site tasks, so that the on-site tasks are sent to the target terminal, the on-duty personnel closest to the execution site can be informed to execute the on-site tasks, and the accident processing efficiency is improved.
Optionally, when the on-site task is issued, the execution post of the on-site task is not considered, and the on-site task is issued only according to the positioning information closest to the execution site of the on-site task, so that different on-site posts can be timely processed.
In order to ensure reliable execution of a task, in some embodiments of the present application, after the task to be executed is issued to a target terminal, so that each attendant performs power-off processing according to the task to be executed, the method further includes:
receiving task execution results sent by each target terminal;
judging whether an unfinished task exists at the off-duty time point of the on-duty personnel according to the task execution result;
and if so, sending the uncompleted task to a terminal of the next attendant handed over correspondingly to the attendant.
Specifically, different operators on duty in different time periods in the power plant can return task execution results through the target terminal after the operators on duty execute corresponding tasks, the execution results comprise task completion or task incompletion, whether incomplete tasks exist at the current off duty time point of the operators on duty is judged according to the task execution results, if yes, the incomplete tasks need to be issued to the next operator on duty for continuous execution, namely, the incomplete tasks are sent to the terminal of the next operator on duty corresponding to the operators on duty, so that the incomplete tasks can be continuously executed.
By applying the technical scheme, when a protection action signal of power loss of a water-oil-ash bus sent by a DCS is detected, the power loss type is determined according to the protection action signal, a preset processing strategy is determined according to the power loss type and a first preset corresponding relation, and the first preset corresponding relation is the corresponding relation between the power loss type and the preset processing strategy; generating a plurality of tasks to be executed comprising execution posts according to the preset processing strategy and a second preset corresponding relation, wherein the second preset corresponding relation is the corresponding relation between each processing step in the preset processing strategy and the post; and issuing the task to be executed to a target terminal so that each person on duty performs power-off treatment according to the task to be executed, and automatically dividing and issuing the task to be executed after the power-off fault of the water-oil-ash bus occurs, thereby improving the treatment efficiency of the water-oil-ash bus when the power-off fault occurs and further improving the running stability of the power plant.
In order to further illustrate the technical idea of the present invention, the technical solution of the present invention will now be described with reference to specific application scenarios.
The embodiment of the application provides a water-oil-ash bus power loss processing method, wherein the water-oil-ash bus comprises a water-oil-ash bus section 0A and a water-oil-ash bus section 0B which are powered by different power supplies, and the method comprises the following steps:
step one, when a protection action signal of power loss of a water-oil-ash bus sent by a DCS is detected, determining a power loss type according to the protection action signal, wherein the power loss type comprises power loss of a section 0A of the water-oil-ash bus, power loss of a section 0B of the water-oil-ash bus, or power loss of the section 0A of the water-oil-ash bus and the section 0B of the water-oil-ash bus simultaneously.
And step two, determining a preset processing strategy according to the power loss type and a first preset corresponding relation, wherein the first preset corresponding relation is the corresponding relation between the power loss type and the preset processing strategy.
The preset processing strategy is as follows:
a. the 0A section of the water-oil-ash bus loses power
Phenomenon(s)
1. DCS sends out an alarm to protect the 6kV water putty 0A section power switch, and the water putty bus 0A section power switch trips and flickers.
2. The load of the section 0A of the 6kV water putty loses electricity: 6kV A section of a circulating pump room, a PC A section for seawater pretreatment, a PC A section of a comprehensive pump room, a rainwater pump room power supply 1, a sea fresh 6kV A section, a PC A section of a dust depot, a limestone 6kV A section, a PC A section of an oil depot, a 6kV A section of a coal wharf and a PC A section of a comprehensive wharf.
3. The seawater desalination water system is partially shut down.
Reason
1. And tripping the bus power switch at the section 0A of the water-oil-ash bus.
2. 6kV 1B2 section is power-off.
3. And (4) the lower-level equipment is tripped out in a fault override mode.
Treatment of
1. And (4) checking the disconnection of a power switch at the 0A section of the 6kV water putty, checking the corresponding connection jump of a load power switch connected with the 0A section of the water putty, and otherwise, manually disconnecting the load power switch. And informing all the relevant posts that the contact switch of the 380PC bus under the water putty is checked to be switched on by itself, or switching on the contact switch manually.
2. And informing the operation of the fuel ash and ash storehouse, checking the trip equipment and trying to recover.
3. If the 6kV water and oil ash section 0A is in voltage loss caused by the power loss of the 6kV 1B2 section, a load switch carried by the 6kV 1B2 bus is disconnected, the reason of the voltage loss of the bus is checked, and the 6kV water and oil ash section 0A is recovered after the bus is recovered to be powered on.
4. And the load state of the bus at the 0A section of the 6kV water putty is checked on site.
5. And monitoring the current and power of the 0B section of the 6kV water putty, and if the load of the 0B section exceeds the limit, immediately stopping partial load on the 0B section bus of the water putty bus to ensure the running of systems such as a circulating pump, an oil depot, sea fresh water making and the like.
6. And a pump-following cooling fan for recovering power-loss tripping operation is used for increasing an industrial water pump to operate according to the pressure of the industrial jellyfish pipe.
7. The specific reasons of the power loss of the bus at the section 0A of the water-putty bus are found in time, the action condition of the power switch at the section 0A is protected, the fault point is isolated in time, the maintenance treatment is informed, and the bus operation is recovered as soon as possible.
8. If the subordinate 380V bus connection switch is not successful in self-closing, the reason should be quickly found out, and the maintenance treatment is contacted.
9. If the lower-level equipment is subjected to fault override trip, the operation of the water-oil-ash bus is recovered after the lower-level equipment is isolated.
10. And after the fault treatment of the bus at the section 0A of the water-oil-ash bus is finished, the power supply of the bus at the section 0A is recovered as soon as possible, and the subordinate load of the bus at the section 0A is gradually recovered to the state before tripping.
b. The 0B section of the water-oil-ash bus loses power
Phenomenon(s)
1. DCS sends out an alarm to protect the 6kV water putty 0B section power switch, and the water putty bus 0B section power switch trips and flickers.
2. The load of the section 0B of the 6kV water putty loses electricity: 6kV B section of a circulating pump room, PC B section of seawater pretreatment, PC B section of a comprehensive pump room, a rainwater pump room power supply 2, 6kV B section of sea and fresh water, PC B section of a dust depot, 6kV B section of limestone, PC B section of an oil depot, 6kV B section of a coal wharf and PC B section of a comprehensive wharf.
3. The seawater desalination system may be completely shut down.
Reason
1. And tripping the bus power switch at the 0B section of the water-oil-ash bus.
2. 6kV 3B2 section is power-off.
3. And (4) the lower-level equipment is tripped out in a fault override mode.
Treatment of
1. And (4) checking the disconnection of a power switch at the 0B section of the 6kV water putty, checking the corresponding connection jump of a load power switch connected with the 0B section of the water putty, and otherwise, manually disconnecting the load power switch. And informing all the relevant posts that the contact switch of the 380PC bus under the water putty is checked to be switched on by itself, or switching on the contact switch manually.
2. And informing the operation of the fuel ash and ash storehouse, checking the trip equipment and trying to recover.
3. If the 6kV water and oil ash section 0B is in voltage loss caused by the power loss of the 6kV 3B2 section, a load switch carried by a 6kV 3B2 bus is disconnected, the reason of the voltage loss of the bus is checked, and the 6kV water and oil ash section 0B is recovered after the bus is recovered to be powered on.
4. And the load state of the bus at the section 0B of the 6kV water putty is checked on site.
5. And monitoring the current and power of the section 0A of the water putty, and if the load carried by the section 0A of the water putty exceeds the limit, immediately stopping the partial load on the section 0A of the water putty bus to ensure the running of the system such as a circulating pump, an oil depot and sea fresh water production.
6. And a pump-following cooling fan for recovering power-loss tripping operation is used for increasing an industrial water pump to operate according to the pressure of the industrial jellyfish pipe.
7. The specific reason that the bus of the section 0B of the water-oil-ash bus loses power is found in time, the action condition of the section 0B power switch is protected, the fault point is isolated in time, the maintenance treatment is informed, and the bus operation is recovered as soon as possible.
8. If the subordinate 380V bus connection switch is not successful in self-closing, the reason should be quickly found out, and the maintenance treatment is contacted.
9. If the lower-level equipment is subjected to fault override trip, the operation of the water-oil-ash bus is recovered after the lower-level equipment is disconnected.
10. And after the fault processing of the bus at the section 0B of the water-oil-ash bus is finished, the power supply of the bus at the section 0B is recovered as soon as possible, and the subordinate load of the bus at the section 0B is gradually recovered to the state before tripping.
When the section 0A of the water-oil-ash bus loses power or the section 0B of the water-oil-ash bus loses power, the following matters are taken:
1. only after the water-oil-dust bus power switch is disconnected, the load power switch can be tripped in a connected mode, the PC bus-connected switch can be automatically switched, and due to the fact that serial switching is conducted, the bus can lose power for a short time, and the motor can act to trip.
2. And judging whether the important load is stopped as early as possible, and properly adjusting the running mode of the main machine so as to avoid tripping the main machine.
3. The in-situ inspection of a circulating water system and a seawater desalination system is enhanced, and dangerous operation conditions are eliminated. The operation monitoring of an industrial water system is enhanced, and the ash storage air compressor is prevented from tripping due to the fact that an industrial water main pipe is low.
4. The power switch low-voltage signal needs to be reset on site after the auxiliary machine of 6kV and 380V is in power-off trip and before the auxiliary machine is recovered to be started.
5. If the partial interconnection switches are not closed by themselves and no protective action signal exists, the interconnection switches are manually closed.
6. If rainstorm occurs, the power supply of the rainwater pump house should be recovered as soon as possible.
c. The sections 0A and 0B of the water-putty bus are simultaneously de-energized
Phenomenon(s)
1. DCS sends out an alarm to protect the power switches of the sections 0A and 0B of the 6kV water putty, and the power switches of the sections 0A and 0B of the water putty bus trip and flicker.
2. The load of the section 0A and the section 0B of the 6kV water putty loses electricity: 6kV A and B sections of the circulating pump room; pretreating PC A and B sections of seawater; the integrated pump room PC A and B sections; a rainwater pump house power supply I, II; sea fresh 6kV A and B sections; ash storehouse PC A, B section; 6kV A and B sections of limestone; oil depot PC A, B section; 6kV A and B sections of the coal wharf; and the integrated wharf PC A and B sections.
3. The seawater desalination system is completely stopped. If the upper power supply is lost, the 6kV 1B2 and 3B2 sections lose power.
Reason
1. And tripping power switches of the water-putty bus OA and 0B section buses.
2. And (5) power loss of the whole plant.
3. 6kV sections 1B2 and 3B2 lose power.
4. And (4) the lower-level equipment is tripped out in a fault override mode.
Treatment of
1. And (3) confirming that the power supply of the MCC (Motor control center) of the circulating pump room is lost, the working power switch is tripped (if the working power switch is not tripped, the working power switch is manually opened), manually closing a standby power switch from the PC (personal computer) of the centralized control building, and checking whether the state of the butterfly valve at the outlet of the circulating pump is normal or not.
2. And (4) checking that the power switches of the sections 0A and 0B of the 6kV water-putty bus are automatically disconnected, or manually pulling the power switches open.
3. And informing the operation of the fuel ash and ash storehouse, checking the trip equipment and trying to recover.
4. If the sections 6kV 1B2 and 3B2 lose power, the power switch of the sections 0A and 0B of the 6kV water putty is manually disconnected. And (4) checking the specific reasons of power loss of the buses of the sections 0A and 0B of the water-putty buses and the protection conditions of the power switches of the sections 0A and 0B, isolating fault points in time and recovering the operation of the buses as soon as possible. And (4) checking whether the bus load switches of the sections 0A and 0B of 6kV water-oil ash are tripped or not on site, or manually pulling the bus load switches.
5. If the lower-level equipment is subjected to fault override trip, the lower-level equipment is disconnected, and the operation of the water-oil-ash bus is recovered.
6. If the bus of the 6kV water-oil-ash section 0A and the bus of the 0B section have obvious faults, immediately isolating fault points, informing overhaul to repair, and simultaneously making bus overhaul safety measures to process as soon as possible.
7. Except that the power is supplied by a PC (personal computer) in a pump room along with an MCC (Motor control center), the integrated pump room and the fuel pump room lose power supply, industrial water is interrupted, and if a boiler is adjusted in a fuel feeding state, and if the boiler is unstable in combustion and cannot be maintained, the boiler should be stopped. The rising speed of the liquid level of the rainwater pump room is closely monitored.
8. And (3) contacting related personnel to start the comprehensive pump room and the rainwater pump room, trying to recover the operation of the industrial water pump, and recovering the operation of the rainwater submersible pump as soon as possible.
9. If the water levels of the four chemical industrial water tanks cannot be maintained due to the fact that the water-oil ash OA and 0B section buses lose power and cannot be recovered in a short time, and normal water supply of a desulfurization system is affected, a leader should be asked whether to apply for dispatching the shutdown part of the unit.
Matters of attention
1. When the MCC of the circulating pump room has power failure, a standby power supply from the PC of the centralized control building is used for supplying power in time, and the inspection of a circulating pump motor and an outlet butterfly valve is enhanced.
2. The in-situ inspection of a circulating water system and a seawater desalination system is enhanced, and dangerous operation conditions are eliminated.
And step three, generating a plurality of tasks to be executed comprising execution posts according to the preset processing strategy and a second preset corresponding relation, wherein the second preset corresponding relation is the corresponding relation between each processing step in the preset processing strategy and the posts.
And step four, issuing the task to be executed to a target terminal so that each person on duty performs power-off processing according to the task to be executed, wherein the target terminal is a terminal of the person on duty corresponding to the execution post.
Corresponding to the method for processing power loss of the water-oil-ash bus in the embodiment of the present application, the embodiment of the present application further provides a system for processing power loss of the water-oil-ash bus, where the water-oil-ash bus includes a first section of bus and a second section of bus powered by different power supplies, and as shown in fig. 2, the system includes:
the first determining module 201 is configured to determine a power loss type according to a protection action signal when the protection action signal of the water-oil-ash bus power loss sent by the DCS is detected, where the power loss type includes that the first section of bus power is lost, or that the second section of bus power is lost, or that the first section of bus and the second section of bus power are lost simultaneously;
a second determining module 202, configured to determine a preset processing policy according to the power loss type and a first preset corresponding relationship, where the first preset corresponding relationship is a corresponding relationship between the power loss type and the preset processing policy;
a generating module 203, configured to generate a plurality of to-be-executed tasks including execution posts according to the preset processing policy and a second preset corresponding relationship, where the second preset corresponding relationship is a corresponding relationship between each processing step in the preset processing policy and a post;
and the issuing module 204 is configured to issue the task to be executed to a target terminal, so that each operator on duty performs power-off processing according to the task to be executed, where the target terminal is a terminal of the operator on duty corresponding to the execution post.
In a specific application scenario of the present application, the task to be executed includes a DCS task and an in-place task, and the system further includes a third determining module configured to:
acquiring positioning information sent by each terminal;
and determining a target terminal corresponding to the local task according to the positioning information closest to the execution site of the local task.
In a specific application scenario of the present application, the issuing module 204 is further configured to:
receiving task execution results sent by each target terminal;
judging whether an unfinished task exists at the off-duty time point of the on-duty personnel according to the task execution result;
and if so, sending the uncompleted task to a terminal of the next attendant handed over correspondingly to the attendant.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A water-oil-ash bus power loss processing method is characterized in that the method comprises the following steps:
when a protection action signal of power loss of a water and oil ash bus sent by a DCS is detected, determining a power loss type according to the protection action signal, wherein the power loss type comprises the power loss of the first section of bus, the power loss of the second section of bus, or the power loss of the first section of bus and the power loss of the second section of bus simultaneously;
determining a preset processing strategy according to the power loss type and a first preset corresponding relation, wherein the first preset corresponding relation is the corresponding relation between the power loss type and the preset processing strategy;
generating a plurality of tasks to be executed comprising execution posts according to the preset processing strategy and a second preset corresponding relation, wherein the second preset corresponding relation is the corresponding relation between each processing step in the preset processing strategy and the post;
and issuing the task to be executed to a target terminal so that each person on duty performs power-off processing according to the task to be executed, wherein the target terminal is a terminal of the person on duty corresponding to the execution post.
2. The method of claim 1, wherein the tasks to be executed comprise DCS tasks and on-site tasks, and before the tasks to be executed are issued to a target terminal so that each operator on duty performs power-off processing according to the tasks to be executed, the method further comprises:
acquiring positioning information sent by each terminal;
and determining a target terminal corresponding to the local task according to the positioning information closest to the execution site of the local task.
3. The method of claim 1, wherein after the task to be executed is issued to a target terminal so that each attendant performs power-off processing according to the task to be executed, the method further comprises:
receiving task execution results sent by each target terminal;
judging whether an unfinished task exists at the off-duty time point of the on-duty personnel according to the task execution result;
and if so, sending the uncompleted task to a terminal of the next attendant handed over correspondingly to the attendant.
4. The method of claim 1, wherein if the power loss type is the power loss of the first segment of the bus, the predetermined processing policy is a first predetermined processing policy, and the first predetermined processing policy includes:
checking the disconnection of a power switch of the first section of bus, checking the corresponding connection jump of a load power switch connected with the first section of bus, and otherwise, manually disconnecting the load power switch;
checking whether a contact switch of a 380V bus under the first section of bus is closed automatically or manually;
checking and trying to recover fuel specialty, desulfurization specialty, and ash bank specialty trip equipment;
if the first section of bus is in voltage loss caused by the power loss of a first power supply bus corresponding to the first section of bus, disconnecting a switch of a load carried by the first power supply bus, checking the voltage loss reason of the first power supply bus, and recovering the power supply of the first section of bus after the first power supply bus is recovered to be powered;
checking the load state of the first section of bus on site;
monitoring the current and power of the second section of bus, and immediately stopping partial load on the second section of bus if the load carried by the second section of bus is over limit, so as to ensure the running of a pump, an oil depot and a seawater desalination system;
recovering the pump-following cooling fan tripped after power failure, and if the pressure of the industrial jellyfish pipe is lower than a threshold value, increasing one industrial water pump to operate;
isolating fault points in time according to the protection action condition related to the first section of bus and informing of maintenance treatment;
if the subordinate 380V bus tie switch is not successful in self-closing, the reason is rapidly found out, and the maintenance is carried out;
if the lower-level equipment fault override trip exists, the operation of the first section of bus is recovered after the lower-level equipment fault override trip is isolated;
and after the fault processing of the first section of bus is finished, recovering the power supply of the first section of bus as soon as possible, and gradually recovering the subordinate load of the first section of bus to a pre-trip state.
5. The method of claim 4, wherein if the power loss type is the power loss of the second segment of the bus, the predetermined processing policy is a second predetermined processing policy, and the second predetermined processing policy includes:
checking the disconnection of a power switch of the second section of bus, checking the corresponding connection jump of a load power switch connected with the second section of bus, and otherwise, manually disconnecting the load power switch;
checking whether a contact switch of a 380V bus under the second section of bus is closed automatically or manually;
checking and trying to recover trip equipment of the fuel specialty, the desulfurization specialty, and the ash bank specialty;
if the second section of bus is in voltage loss caused by the power loss of a second power supply bus corresponding to the second section of bus, disconnecting a switch of a load carried by the second power supply bus, checking the reason of the voltage loss of the second power supply bus, and recovering the power supply of the second section of bus after the second power supply bus recovers power supply;
checking the load state of the second section of bus on site;
monitoring the current and power of the first section of bus, and immediately stopping partial load on the first section of bus if the load carried by the first section of bus is over limit, so as to ensure that the circulating pump, the oil depot and the sea fresh water system run;
recovering a pump-following cooling fan tripped after power failure, and if the pressure of the industrial jellyfish pipe is lower than a threshold value, starting an industrial water pump to operate;
isolating fault points in time according to the protection action condition related to the second section of bus and informing of maintenance treatment;
if the subordinate 380V bus tie switch is not successful in self-closing, the reason is rapidly found out, and the maintenance is carried out;
if the lower-level equipment fault override trip exists, isolating the lower-level equipment fault override trip, and then recovering the operation of the second-section bus;
and after the fault processing of the second section of bus is finished, recovering the power supply of the second section of bus as soon as possible, and gradually recovering the subordinate load of the second section of bus to the pre-trip state.
6. The method of claim 5, wherein the first and second predetermined processing strategies further comprise:
judging whether the preset important load is stopped in time, and properly adjusting the operation of the host computer so as to avoid tripping the host computer;
the in-situ inspection of a circulating water system and a seawater desalination system is enhanced, dangerous operation working conditions are eliminated, the operation monitoring of an industrial water system is enhanced, and the tripping of an ash silo air compressor caused by the low industrial water main pipe is prevented;
the method comprises the following steps that after the auxiliary machine is subjected to power failure and tripping, a power switch low-voltage signal needs to be reset on site before starting is recovered;
if the partial interconnection switches are not closed by themselves and no protective action signal exists, switching on the interconnection switches manually;
if rainstorm occurs, the power supply of the rainwater pump house should be recovered as soon as possible.
7. The method of claim 5, wherein if the power loss type is that the first segment of bus and the second segment of bus are simultaneously power loss, the predetermined processing policy is a third predetermined processing policy, and the third predetermined processing policy includes:
confirming that the MCC power supply of the circulating pump room is lost power and the working power switch is tripped, if the MCC power supply is not tripped, manually opening a brake, manually switching on a standby power switch from a PC of a central control building, and checking whether the state of a disc valve at an outlet of the circulating pump is normal;
checking that the power switch of the first section of bus and the power switch of the second section of bus are automatically disconnected, or manually pulling the power switches apart;
checking and trying to recover trip equipment of the fuel specialty, the desulfurization specialty, and the ash bank specialty;
checking whether the load switches of the first section of bus and the second section of bus are tripped or not on site, and otherwise, manually pulling the load switches off;
if the first power bus and the second power bus are power-off, disconnecting switches of loads carried by the first power bus and the second power bus, checking the reason of voltage loss of the first power bus and the second power bus, and recovering power supply of the first section of bus and the second section of bus after the first power bus and the second power bus are power-on;
if the lower-level equipment is subjected to fault override trip, the lower-level equipment is disconnected, and the operation of the water-oil-ash bus is recovered;
if the first section of bus and the second section of bus have obvious faults, immediately isolating fault points, informing overhaul to repair, and simultaneously making bus overhaul safety measures to process as soon as possible;
except that the power is supplied by a PC (personal computer) in a pump room along with an MCC (Motor control center), the integrated pump room and the fuel pump room lose power supply, industrial water is interrupted, if a boiler is in an oil feeding state and is adjusted in combustion, if the combustion is unstable and cannot be maintained, furnace shutdown preparation is needed, and the rising speed of the liquid level of the rainwater pump room is closely monitored;
the method comprises the following steps of contacting related personnel to start the diesel oil in the comprehensive pump room and the diesel oil in the rainwater pump room, trying to recover the operation of an industrial water pump, and recovering the operation of a rainwater submersible pump as soon as possible;
if the water-oil-ash bus is power-off and cannot be recovered in a short time, the water level of the chemical industrial water tank cannot be maintained, and normal water supply of a desulfurization system is influenced, a leader should be asked whether to apply for dispatching a shutdown part of unit sets.
8. The utility model provides a water putty generating line loses electric processing system, water putty generating line includes first section generating line and the second section generating line by different mains operated, its characterized in that, the system includes:
the first determining module is used for determining a power loss type according to a protection action signal when the protection action signal of the water-oil-ash bus power loss sent by the DCS is detected, wherein the power loss type comprises the power loss of the first section of bus, the power loss of the second section of bus, or the simultaneous power loss of the first section of bus and the second section of bus;
the second determining module is used for determining a preset processing strategy according to the power loss type and a first preset corresponding relation, wherein the first preset corresponding relation is the corresponding relation between the power loss type and the preset processing strategy;
the generating module is used for generating a plurality of tasks to be executed comprising execution posts according to the preset processing strategy and a second preset corresponding relation, wherein the second preset corresponding relation is the corresponding relation between each processing step in the preset processing strategy and the posts;
and the issuing module is used for issuing the task to be executed to a target terminal so that each on-duty person performs power-off processing according to the task to be executed, and the target terminal is a terminal of the on-duty person corresponding to the execution post.
9. The system of claim 8, wherein the tasks to be performed include DCS tasks and in-place tasks, the system further comprising a third determination module to:
acquiring positioning information sent by each terminal;
and determining a target terminal corresponding to the local task according to the positioning information closest to the execution site of the local task.
10. The system of claim 9, wherein the issuing module is further configured to:
receiving task execution results sent by each target terminal;
judging whether an unfinished task exists at the off-duty time point of the on-duty personnel according to the task execution result;
and if so, sending the uncompleted task to a terminal of the next attendant handed over correspondingly to the attendant.
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| CN109888913A (en) * | 2019-03-19 | 2019-06-14 | 上海唐银投资发展有限公司 | A kind of 10KV power supply-distribution system automatically switching power supply for diesel-driven generator |
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