CN109760814B - Operation method of nuclear power master control room in compact arrangement - Google Patents
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- CN109760814B CN109760814B CN201811493929.7A CN201811493929A CN109760814B CN 109760814 B CN109760814 B CN 109760814B CN 201811493929 A CN201811493929 A CN 201811493929A CN 109760814 B CN109760814 B CN 109760814B
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Abstract
The invention provides an operation method of a compact-type arranged nuclear power master control room, which is used for a configuration system of the nuclear power master control room, wherein the configuration system comprises three workstations and a special safety disk; the method specifically comprises the steps of obtaining the current operation condition of a nuclear reactor unit on a nuclear power ship; wherein the current operation condition is a normal operation condition or a fault condition; under the obtained current operation condition, determining the number of faults existing in three workstations at present, and selecting the current operation mode of the special safety disk to ensure the safety of the unit according to the determined number; wherein the operation mode comprises scram and take over of the failed workstation. By implementing the invention, when the failure of the tray table occurs in the main control room of the nuclear power ship, the usability of the nuclear power ship can be improved on the premise of ensuring the nuclear power safety through a reasonable switching operation mode.
Description
Technical Field
The invention relates to the technical field of nuclear power ships, in particular to an operation method of a nuclear power main control room in compact arrangement.
Background
At present, four digital operator stations are designed in a nuclear power station master control room on land, and comprise a primary loop operator workstation, a secondary loop operator workstation, a unit length/safety workstation and a unit length workstation. The four operator stations are mutually redundant, under the normal operation condition, the first loop operator station and the second loop operator station have operation permission, and the unit leader/safety work station and the unit leader station only have monitoring permission and no operation permission. And an auxiliary control panel (BUP) is simultaneously designed in the CPR1000 unit, the function of the BUP is to maintain the unit to safely operate within a certain time after the digital operator station fails, and if the digital operator station is not available again within the time, the unit is maintained in a safe shutdown state through the BUP.
Taking the CPR1000 unit as an example, when one of four digital operator workstations is unavailable, the unit manager/security worker shifts to the BUP by reconfiguring; when the two workstations are not available, the unit length/safety work and the unit length are transferred to the BUP through reconfiguration, and the specific operation is related to the current state of the unit at the same time. The normal operation (power operation) mode is taken as an example for explanation, and the details are as follows:
when 1 workstation is unavailable, namely 3 workstations are available, simultaneously the BUP is still available as a backup, 14 days of maintenance time is reserved to recover the unavailable workstation, and if the BUP cannot be recovered for 14 days, the unit mode is backed up according to regulations;
when 2 workstations are unavailable, namely 2 workstations are available, simultaneously the BUP is still available as a backup, the unavailable workstations are recovered in 7 days, and if the unavailable workstations cannot be recovered in 7 days, the unit mode is withdrawn according to the regulations.
When 3 workstations are not available, namely only one workstation is available and the BUP is still available as a backup, the set mode in 24h is required to be backed up, and if an accident occurs at the moment (including the loss of the last workstation), the BUP disk must be switched to be controlled.
Under the accident condition, a first loop operator and a second loop operator can clear the responsibility of the two parties through communication and mutually cooperate to relieve corresponding accidents. At present, the nuclear power plant generally adopts State Oriented (SOP) treatment to deal with accidents, and a unit leader can participate in the state redirecting process in the accident treatment process.
The main control room of the nuclear power plant on land has more means and larger floor area, but is not suitable for the main control room of the marine nuclear power ship, and at present, no design scheme and operation method for the main control room of the nuclear power ship exist, and especially, the usability is improved on the premise of ensuring the nuclear power safety when the main control room of the nuclear power ship fails due to the tray fault.
Disclosure of Invention
The technical problem to be solved by the embodiments of the present invention is to provide an operation method for a nuclear power main control room in a compact arrangement, which can improve the usability of the nuclear power main control room by reasonably switching operation modes when a failure of a tray table occurs in the main control room of a nuclear power ship, so as to guarantee the safety of the nuclear power.
In order to solve the above technical problem, an embodiment of the present invention provides an operation method of a nuclear power master control room in a compact arrangement, which is used on a configuration system of the nuclear power master control room; the configuration system comprises three workstations and a special safety disk; the three workstations are respectively a unit long operation station positioned in the central area of the nuclear power main control room, a primary loop operation station and a secondary loop operation station positioned in front of the unit long operation station; the special safety disc is positioned between the first loop operation station and the second loop operation station;
the method comprises the following steps:
step S1, obtaining the current operation condition of the nuclear reactor unit on the nuclear power ship; wherein the current operation condition is a normal operation condition or a fault condition;
step S2, determining the number of faults existing in the three workstations at present under the acquired current operation condition, and selecting the current operation mode of the special safety disk to ensure the safety of the unit according to the determined number; wherein the operating modes include scram and take-over failed workstations.
Wherein, the step S2 specifically includes:
and when the acquired current operation working condition is a normal operation working condition and the number of the faults existing in the three working stations is determined to be 1, selecting the special safety disk adapter fault working station, so that the special safety disk adapter fault working station can be independently maintained.
Wherein the method further comprises:
and if the maintenance of the fault workstation of the special safety disk takeover fails within a certain time period, carrying out unit mode withdrawal according to a preset rule.
Wherein the step S2 further includes:
and when the acquired current operation working condition is a normal operation working condition and the number of the faults existing in the three working stations is determined to be 2, selecting one of the two fault working stations of the special safety disk adapter tube, so that the fault working station of the special safety disk adapter tube can be independently maintained.
Wherein the method further comprises:
and if the normal work station of the three work stations has a fault, immediately monitoring the special safety disc and emergently stopping the pile so as to maintain the unit in a safe pile stopping state.
Wherein the method further comprises:
and if the maintenance of the fault workstation of the special safety disk takeover is successful within a certain time period, the special safety disk takes over another fault workstation, so that the other fault workstation of the special safety disk takeover can be maintained independently.
Wherein the step S2 further includes:
and when the acquired current operation working condition is a normal operation working condition and the number of the faults existing in the three work stations is determined to be 3, selecting the special safety disc to immediately and emergently stop so that the unit is maintained in a safe shutdown state.
Wherein the step S2 further includes:
and when the acquired current operation working condition is a fault working condition and the number of faults existing in the three working stations is determined to be 1, selecting the special safety disk adapter fault working station, so that the special safety disk adapter fault working station can be independently maintained.
Wherein the step S2 further includes:
and when the acquired current operation working condition is a fault working condition and the number of faults existing in the three work stations is determined to be 2, selecting the special safety disc to immediately and emergently stop so that the unit is maintained in a safe shutdown state.
The embodiment of the invention has the following beneficial effects:
when the failure of the tray table occurs in the main control room of the nuclear power ship, the usability of the nuclear power ship can be improved on the premise of ensuring the nuclear power safety through a reasonable switching operation mode.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is within the scope of the present invention for those skilled in the art to obtain other drawings based on the drawings without inventive exercise.
Fig. 1 is an application scenario diagram of a configuration system of a nuclear power vessel master control room in an operation method of a compact-arrangement nuclear power master control room according to an embodiment of the present invention;
fig. 2 is a flow chart of a method of operating a compact arrangement of a nuclear power main control room provided by an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the configuration system of the nuclear power main control room includes three workstations and a dedicated security disk 2; the three workstations are respectively a unit long operating station 1 positioned in the central area of the nuclear power main control room, a primary loop operating station 3 and a secondary loop operating station 4 positioned in front of the unit long operating station 1; the dedicated security disk 2 is located between a loop operator station 3 and a loop operator station 4.
The configuration system further comprises: a large screen display screen 10 suspended in the center of the wall right in front of the main control room; the ship monitoring platform 9 is positioned right behind the unit long operation station 1; the closed circuit monitoring television 5 is positioned on one side of the large screen display screen 10; a radiation monitoring display screen 6 on the other side of the large screen display screen 10; and a power grid console 7 and a file cabinet 8 are also arranged in the main control room.
In the embodiment of the present invention, the unit length station 1, the primary loop station 3 and the secondary loop station 4 have the same configuration. Under normal working conditions, the primary loop operation station 3 and the secondary loop operation station 4 are mainly used for monitoring and controlling safety-level equipment and non-safety-level equipment corresponding to each other, and the unit length operation station 1 is used for monitoring working conditions of all the safety-level equipment and the non-safety-level equipment. The three workstations can realize the same functions as the operation stations in the onshore nuclear power plant, and are also in mutual redundancy relation, so that the unit leader operation station only has the monitoring right only by setting different login authorities, and the primary loop operation station and the secondary loop operation station have the monitoring and control right.
When any one of the primary loop operation station 3 or the secondary loop operation station 4 has a fault, the login authority can be switched between the unit leader operation station 1 to realize the function of the corresponding operation station. Specifically, when any one of the operation stations fails, the authority login can be switched on any one of the other two operation stations to complete the corresponding work of the failed operation station to realize the corresponding function. For example: when a loop operator station 3 fails to monitor the corresponding safety-level devices and non-safety-level devices, the operator in the loop operator can log on the unit leader operator station 1 to continuously monitor the devices corresponding to the loop operator station 3, and meanwhile, the two loop operator stations 4 continuously execute various work tasks in the station, and the unit leader can go to a special safety disc to operate.
Similarly, when the second loop operation station 4 has a fault, the authority of the second loop operator can be used for logging in the unit leader operation station 1 to continuously monitor each device corresponding to the second loop operation station 4; when the unit leader operating station 1 breaks down, the unit leader directly goes to the special safety disk 2 for operation. Of course, in other embodiments, additional equipment may be added to the cluster leader operator station 1, primary operator station 3, and secondary operator station 4 without affecting the redundant backup relationship between the stations. In addition, the unit length operation station 1, the primary loop operation station 3 and the secondary loop operation station 4 are all provided with a nuclear power generating unit for maintaining a nuclear power ship in a safe shutdown state under an accident condition. It is understood that in some embodiments, the primary loop operator 3 and the secondary loop operator 4 may have the same login rights, which may facilitate operator communication, and the primary loop operator may operate the secondary loop equipment and the secondary loop operator may operate the primary loop equipment after permission from the other party.
The special safety disc 2 is also provided with a safety monitoring device and a non-safety monitoring device, and when the unit long operation station 1, the primary loop operation station 3 and the secondary loop operation station 4 have faults, the special safety disc 2 can be started to maintain the nuclear power generating unit of the nuclear power ship in a safe shutdown state. In this embodiment, a diversified control panel (not labeled) is designed on the professional safety panel 2, and when a digital system in the main control room fails, the nuclear power generating set can be maintained in a safe shutdown state by multiple means. In addition, the dedicated safety disk 2 has functions of emergency shutdown and starting of dedicated safety facilities to cope with the occurrence of an emergency accident. The special safety disc 2 should also have a monitoring means for alleviating serious accidents in case of serious accidents. Of course, in other embodiments, the installation positions of the functional modules on the professional safety disk 2 can be inter-modulated without affecting the implementation of various monitoring functions and scram functions.
Therefore, the inventor carries out reasonable switching operation modes based on the configuration system of the nuclear power master control room to improve the usability on the premise of ensuring the safety of the unit. As shown in fig. 2, in a first embodiment of the present invention, the inventor provides an operation method of a compact-layout nuclear power master control room, which is used on a configuration system of the nuclear power master control room; the method comprises the following steps:
step S1, obtaining the current operation condition of the nuclear reactor unit on the nuclear power ship; wherein the current operation condition is a normal operation condition or a fault condition;
step S2, determining the number of faults existing in the three workstations at present under the acquired current operation condition, and selecting the current operation mode of the special safety disk to ensure the safety of the unit according to the determined number; wherein the operating modes include scram and take-over failed workstations.
In step S2, the operation conditions of the nuclear reactor plant on the nuclear power vessel are first distinguished, and then the number of the faulty workstations in each operation condition is further distinguished to switch between different operation modes to ensure the safety of the plant.
Under the normal operation condition;
(1) under the normal operation condition, when the number of the faults existing in the three work stations is determined to be 1, the special safety pipe coiling fault work station is selected, so that the special safety pipe coiling fault work station can be independently maintained.
And if the maintenance of the fault workstation of the special safety disk takeover fails within a certain time period, carrying out unit mode withdrawal according to a preset rule.
(2) Under the normal operation condition, when the number of the faults existing in the three work stations is determined to be 2, one of the two fault work stations of the special safety disk adapter tube is selected, so that the fault work station of the special safety disk adapter tube can be independently maintained.
If the normal workstation of the three workstations has a fault (namely, the three workstations have faults at the same time), monitoring is immediately carried out on the special safety disk, and the shutdown is carried out emergently, so that the unit is maintained in a safe shutdown state.
If the maintenance of the fault workstation of the special safety disk adapter tube is successful within a certain time period, the special safety disk adapter tube is used for taking over another fault workstation, so that the other fault workstation of the special safety disk adapter tube can be independently maintained.
(3) Under the normal operation condition, when the number of faults existing in three work stations is determined to be 3, a special safety disc is selected to immediately and emergently stop the pile, so that the unit is maintained in a safe pile stopping state.
It can be understood that under the normal operation condition, after 1 workstation breaks down, 2 workstations and special safety disks still exist, and emergency shutdown is not needed; after 2 workstations fail, 1 workstation and a special safety disk are still provided, and emergency shutdown is not needed; after 3 workstations fail, the stack must be scrammed by a dedicated safety disc.
(II) under the fault working condition;
(1) under the fault working condition, when the number of the faults existing in the three work stations is determined to be 1, the special safety disk adapter fault work station is selected, so that the special safety disk adapter fault work station can be independently maintained.
(2) Under the fault working condition, when the number of faults existing in three work stations is determined to be 2, a special safety disc is selected to immediately and emergently stop the pile, so that the unit is maintained in a safe pile-stopping state.
It can be understood that under the fault working condition, 1 workstation has a fault, and 2 workstations and special safety disks are still available, and emergency shutdown is not needed; and 2 work stations fail, and safe shutdown must be realized through the intact work stations and special safety disks.
It should be noted that, for the accident condition, because the configuration of the primary circuit and the secondary circuit is completely the same, the accident condition can be dealt with by the cooperation of the primary circuit operator and the secondary circuit operator; similarly, the accident regulations adopt a more advanced state-oriented process (SOP) to process, and the unit length can participate in the state guidance in the accident processing process to ensure the safe operation of the unit. The primary loop and the secondary loop work stations are configured identically and satisfy GB/T15241.2-1999 part 2 of the ergonomic principle related to psychological load: design principles.
The operator takes monotonous measures: 1. for expansion of the working range: the operator of the second loop not only monitors the system and the equipment related to the second loop, but also can give the operator of the second loop the operation of the system and the equipment related to the first loop if necessary; 2. can accomplish the task jointly through communication: the completion of a certain task can be completed through the cooperation of operators in the first loop and the second loop; 3. opportunities for job changes are provided: providing primary loop-related system and equipment monitoring information to a two-loop operator provides space for future promotion to a primary loop operator.
Consider the operator emptysis: 1. the work has a certain significance: the operators in the first loop and the second loop can know the importance of the operators in the whole task; 2. enabling the operator to raise his level during the work: the method is mainly used for a two-loop operator to learn and master the functions of a system and equipment related to a primary loop in work, and can promote the operator to the primary loop to provide learning and adapting opportunities.
The embodiment of the invention has the following beneficial effects:
1. when the failure of the tray table fault occurs in the main control room of the nuclear power ship, the usability of the nuclear power ship can be improved on the premise of ensuring the nuclear power safety through a reasonable switching operation mode;
2. the invention can provide reasonable opportunity for promoting of the operator and reduce psychological load (including work monotony and nighttime) of the operator.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (6)
1. A method of operating a nuclear power main control room in a compact arrangement, for use on a configuration system of the nuclear power main control room; the configuration system comprises three workstations and a special safety disk; the three workstations are respectively a unit long operation station positioned in the central area of the nuclear power main control room, a primary loop operation station and a secondary loop operation station positioned in front of the unit long operation station; the special safety disc is positioned between the first loop operation station and the second loop operation station;
the method comprises the following steps:
step S1, obtaining the current operation condition of the nuclear reactor unit on the nuclear power ship; wherein the current operation condition is a normal operation condition or a fault condition;
step S2, determining the number of faults existing in the three workstations at present under the acquired current operation condition, and selecting the current operation mode of the special safety disk to ensure the safety of the unit according to the determined number; wherein the operating mode includes a scram and take-over failed workstation;
wherein the step S2 further includes:
when the acquired current operation condition is a normal operation condition and the number of the faults existing in the three work stations is determined to be 2, selecting one of the two fault work stations of the special safety disk adapter tube, so that the fault work station of the special safety disk adapter tube can be independently maintained;
if a normal workstation of the three workstations breaks down, immediately monitoring the special safety disk, and emergently stopping the stack to ensure that the unit is maintained in a safe stack-stopping state;
if the maintenance of the fault workstation of the special safety disk takeover is successful within a certain time period, the special safety disk takes over another fault workstation, so that the other fault workstation of the special safety disk takeover can be maintained independently.
2. The method of operating a compact-layout nuclear power main control room of claim 1, wherein said step S2 specifically includes:
and when the acquired current operation working condition is a normal operation working condition and the number of the faults existing in the three working stations is determined to be 1, selecting the special safety disk adapter fault working station, so that the special safety disk adapter fault working station can be independently maintained.
3. The method of operating a compact arrangement nuclear power main control room of claim 2, further comprising:
and if the maintenance of the fault workstation of the special safety disk takeover fails within a certain time period, carrying out unit mode withdrawal according to a preset rule.
4. The method of operating a compact-layout nuclear power main control room of claim 1, wherein said step S2 further includes:
and when the acquired current operation working condition is a normal operation working condition and the number of the faults existing in the three work stations is determined to be 3, selecting the special safety disc to immediately and emergently stop so that the unit is maintained in a safe shutdown state.
5. The method of operating a compact-layout nuclear power main control room of claim 1, wherein said step S2 further includes:
and when the acquired current operation working condition is a fault working condition and the number of faults existing in the three working stations is determined to be 1, selecting the special safety disk adapter fault working station, so that the special safety disk adapter fault working station can be independently maintained.
6. The method of operating a compact-layout nuclear power main control room of claim 1, wherein said step S2 further includes:
and when the acquired current operation working condition is a fault working condition and the number of faults existing in the three work stations is determined to be 2, selecting the special safety disc to immediately and emergently stop so that the unit is maintained in a safe shutdown state.
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| CN103337266A (en) * | 2013-05-27 | 2013-10-02 | 中国核电工程有限公司 | Back-up disk function analytic method of nuclear power plant using digital man-machine interface |
| CN108172314A (en) * | 2017-11-23 | 2018-06-15 | 中国核电工程有限公司 | Digitize the unavailable troubleshooting analysis of strategies method of PWR nuclear power plant master control room |
| CN108711459A (en) * | 2018-05-30 | 2018-10-26 | 中国原子能科学研究院 | A kind of diversified protective device for fast reactor |
| CN110450934A (en) * | 2018-01-23 | 2019-11-15 | 中广核研究院有限公司 | A kind of configuration system of atomic-powered ship master control room |
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2018
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| GB2272326A (en) * | 1989-11-02 | 1994-05-11 | Combustion Eng | Plant monitor system |
| CN103337266A (en) * | 2013-05-27 | 2013-10-02 | 中国核电工程有限公司 | Back-up disk function analytic method of nuclear power plant using digital man-machine interface |
| CN108172314A (en) * | 2017-11-23 | 2018-06-15 | 中国核电工程有限公司 | Digitize the unavailable troubleshooting analysis of strategies method of PWR nuclear power plant master control room |
| CN110450934A (en) * | 2018-01-23 | 2019-11-15 | 中广核研究院有限公司 | A kind of configuration system of atomic-powered ship master control room |
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