CN113379302B

CN113379302B - Nuclear power station chemical efficiency control method, device, equipment and storage medium

Info

Publication number: CN113379302B
Application number: CN202110728885.7A
Authority: CN
Inventors: 张锦浙; 张裕; 陈红雨; 吴迪; 林根仙
Original assignee: China General Nuclear Power Corp; CGN Power Co Ltd; Daya Bay Nuclear Power Operations and Management Co Ltd; Lingdong Nuclear Power Co Ltd; Guangdong Nuclear Power Joint Venture Co Ltd; Lingao Nuclear Power Co Ltd
Current assignee: China General Nuclear Power Corp; CGN Power Co Ltd; Daya Bay Nuclear Power Operations and Management Co Ltd; Lingdong Nuclear Power Co Ltd; Guangdong Nuclear Power Joint Venture Co Ltd; Lingao Nuclear Power Co Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2024-01-19
Anticipated expiration: 2041-06-29
Also published as: CN113379302A

Abstract

The embodiment of the application relates to a chemical efficiency control method, a device, equipment and a computer readable storage medium of a nuclear power station, wherein the method determines monitoring values of a plurality of compounds in a coolant of the nuclear power station according to a chemical efficiency evaluation instruction triggered by a user; judging whether a plurality of monitoring events of the nuclear power station are abnormal or not according to the monitoring values of the plurality of compounds under the condition that the monitoring values of the plurality of compounds exceed the monitoring value threshold value; monitoring events for limiting the amount of compounds in the coolant; and under the condition that abnormal monitoring events exist in the plurality of monitoring events, determining a chemical efficiency control strategy of the nuclear power station based on the abnormal monitoring events so as to improve the chemical efficiency of the nuclear power station. The method provided by the invention can provide accurate data support for the user to determine the chemical efficiency control strategy of the nuclear power plant, so that the user can determine the chemical efficiency control strategy of the nuclear power plant in a targeted manner, and the chemical efficiency of the nuclear power plant is effectively improved.

Description

Nuclear power station chemical efficiency control method, device, equipment and storage medium

Technical Field

The present disclosure relates to the field of nuclear power assisted technologies, and in particular, to a method, an apparatus, a device, and a computer readable storage medium for controlling chemical efficiency of a nuclear power plant.

Background

The nuclear power unit of the pressurized water reactor nuclear power station is used as a minimum power generation unit, and mainly comprises a nuclear steam supply system (namely a primary loop system), a steam turbine generator system (namely a secondary loop system) and other auxiliary systems, wherein light water is mainly used as a coolant, and after the primary loop system absorbs heat energy released by nuclear fuel fission, the coolant transfers the heat energy to the secondary loop system through a steam generator to generate steam, and then enters the steam turbine to do work so as to drive a generator to generate power. The chemical efficiency of the nuclear power plant is used for evaluating the control quality of the coolant in the primary loop system and the secondary loop system of the nuclear power plant, and the control of the coolant in the primary loop system and the secondary loop system of the nuclear power plant affects the service life of the whole nuclear power unit, so that the chemical efficiency control of the nuclear power plant is very necessary.

Disclosure of Invention

The embodiment of the application provides a chemical efficiency control method, device and equipment for a nuclear power station and a computer readable storage medium, which can intuitively reflect the chemical efficiency of the nuclear power station in a preset time period and enable a user to determine a chemical efficiency control strategy of the nuclear power station according to the chemical efficiency so as to improve the chemical efficiency of the nuclear power station.

A first aspect of an embodiment of the present application provides a chemical efficiency control method for a nuclear power plant, including:

responding to a chemical efficiency evaluation instruction triggered by a user, determining monitoring values of a plurality of compounds in the coolant of the nuclear power station, and judging whether the monitoring values of the plurality of compounds exceed corresponding thresholds; the coolant is placed in a primary loop system of the nuclear power plant and a secondary loop system of the nuclear power plant;

if the monitoring value of the compounds exceeds the monitoring value threshold, judging whether a plurality of monitoring events of the nuclear power station are abnormal or not according to the monitoring values of the compounds; monitoring events for limiting the compound content in the refrigerant;

if abnormal monitoring events exist in the plurality of monitoring events, determining a chemical efficiency control strategy of the nuclear power station based on the abnormal monitoring events; the chemical efficiency control strategy is used for improving the chemical efficiency of the nuclear power plant.

A second aspect of embodiments of the present application provides a chemical efficiency control device for a nuclear power plant, the device including:

the determining and judging module is used for responding to a chemical efficiency evaluation instruction triggered by a user, determining monitoring values of a plurality of compounds in the coolant of the nuclear power station and judging whether the monitoring values of the plurality of compounds exceed corresponding thresholds or not; the coolant is placed in a primary loop system of the nuclear power station and a secondary loop system of the nuclear power station;

The determining and judging module is further used for judging whether a plurality of monitoring events of the nuclear power station are abnormal according to the monitoring values of the plurality of compounds if the monitoring values of the plurality of compounds exceed the monitoring value threshold value; monitoring events for limiting the amount of compounds in the coolant;

the determining and judging module is further used for determining a chemical efficiency control strategy of the nuclear power station based on the abnormal monitoring event if the abnormal monitoring event exists in the plurality of monitoring events; chemical efficiency control strategies are used to boost the chemical efficiency of nuclear power plants.

A third aspect of the embodiments of the present application provides a chemical efficiency control device for a nuclear power plant, including a memory and a processor, where the memory stores a computer program, and the processor implements steps of any one of the methods described above when executing the computer program.

A fourth aspect of the embodiments of the present application provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of any of the methods described above.

The embodiment of the application provides a chemical efficiency control method, a device, equipment and a computer readable storage medium of a nuclear power station, wherein the method comprises the steps of determining monitoring values of a plurality of compounds in a coolant of the nuclear power station according to a chemical efficiency evaluation instruction triggered by a user, and judging whether the monitoring values of the plurality of compounds exceed corresponding thresholds; the coolant is placed in a first loop system of the nuclear power station and a second loop system of the nuclear power station; judging whether a plurality of monitoring events of the nuclear power station are abnormal or not according to the monitoring values of the plurality of compounds under the condition that the monitoring values of the plurality of compounds exceed the monitoring value threshold value; monitoring events for limiting the amount of compounds in the coolant; and under the condition that abnormal monitoring events exist in the plurality of monitoring events, determining a chemical efficiency control strategy of the nuclear power station based on the abnormal monitoring events so as to improve the chemical efficiency of the nuclear power station. The chemical efficiency control method of the nuclear power plant can provide accurate data support for the user to determine the chemical efficiency control strategy of the nuclear power plant, so that the user can determine the chemical efficiency control strategy of the nuclear power plant in a targeted manner, and the chemical efficiency of the nuclear power plant is effectively improved.

Drawings

FIG. 1 is an application environment diagram of a chemical efficiency control method of a nuclear power plant in one embodiment;

FIG. 2 is a flow chart of a method for controlling chemical efficiency of a nuclear power plant in another embodiment;

FIG. 3 is a flow chart of a method for controlling chemical efficiency of a nuclear power plant in another embodiment;

FIG. 4 is a block diagram of a chemical efficiency control apparatus of a nuclear power plant in one embodiment;

fig. 5 is an internal structural view of a chemical efficiency control apparatus of a nuclear power plant in one embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

The chemical efficiency control method of the nuclear power station can be applied to an application environment shown in fig. 1. The nuclear power unit 100 of the nuclear power plant comprises a loop system 102 and a two loop system 104, wherein a coolant is placed in the loop system 102 and the two loop system 104, the coolant absorbs heat energy released by nuclear fuel fission in the loop system 102, then the heat energy is transferred to the two loop system 104 through a steam generator to generate steam, and the steam enters a steam turbine to apply work to drive a generator to generate power. The monitoring device monitors the content of the compound in the coolant of the first loop system 102 and the second loop system 104 from time to time, and transmits the monitored monitoring values of the compound in the coolant of the first loop system 102 and the second loop system 104 to the data processing device, the data processing device calculates the scoring of the preset monitoring event by utilizing the monitoring values of the compound in the coolant of the first loop system 102 and the second loop system 104, the data processing device determines whether the corresponding monitoring event is abnormal according to the scoring of the preset monitoring event, and when the monitoring event is abnormal, the chemical efficiency control strategy of the nuclear power unit is determined based on the monitoring values of the compound related to the abnormal monitoring event, so that the chemical efficiency of the whole nuclear power station is improved. Wherein the data processing device may be, but is not limited to, various computer devices, stand alone servers, or a server cluster made up of multiple servers.

In one embodiment, as shown in fig. 2, a chemical efficiency control method of a nuclear power plant is provided, and the method is applied to a data processing device for illustration, and the method includes the following steps:

step S202, responding to a chemical efficiency evaluation instruction triggered by a user, determining monitoring values of a plurality of compounds in the coolant of the nuclear power station, and judging whether the monitoring values of the plurality of compounds exceed corresponding thresholds; the coolant is placed in a primary loop system of the nuclear power plant and in a secondary loop system of the nuclear power plant.

The chemical efficiency evaluation instruction may be an instruction input by a user to the data processing device, and the data processing device starts chemical efficiency evaluation on a certain nuclear power unit, a certain number of nuclear power units or the whole nuclear power station according to the chemical efficiency evaluation instruction input by the user, where the chemical efficiency evaluation depends on monitoring values of compounds in coolant of a primary loop system and a secondary loop system in each nuclear power unit in the nuclear power station as data support. The chemical efficacy evaluation is performed within a predetermined monitoring period, which may be one month, half year, one year, etc. The monitoring data of the compounds in the coolant of the primary loop system and the secondary loop system of the nuclear power station can be historical monitoring data stored in the data processing equipment, or can be data monitored by the monitoring equipment in real time after the preset monitoring time length is determined, and the application is not limited to the monitoring data. The coolant contains different kinds of compounds, and only the compounds with larger influence on equipment in the nuclear power station are considered, and the influence of each compound on the equipment in the nuclear power station is different, so that the threshold value corresponding to each compound is different. The coolant includes coolant flowing in the primary and secondary circuit systems, coolant supplied to the secondary circuit system, waste coolant from the secondary circuit system, coolant in the primary circuit system tank, and coolant in the secondary circuit system tank. It should be noted that the nature of the coolant is also light water, and the present application distinguishes the coolant according to the location of the coolant within the preset monitoring time.

The user inputs an instruction for evaluating the chemical efficiency of the number 1 nuclear power unit for one month to the server, the server may obtain monitoring values of the compounds to be monitored for one month from the server after receiving the instruction, the monitoring values include a plurality of monitoring values, each monitoring value of each compound is compared with a corresponding threshold value, and finally, a result that whether the compound exceeds the threshold value is obtained.

Step S204, if a compound with a monitoring value exceeding a monitoring value threshold exists in the plurality of compounds, judging whether a plurality of monitoring events of the nuclear power station are abnormal or not according to the monitoring values of the plurality of compounds; the monitoring event is used to limit the compound content in the coolant.

The monitoring events comprise a plurality of monitoring events, and the plurality of monitoring events monitor the nuclear power station from different dimensions. The plurality of monitoring events comprise a first monitoring event, a second monitoring event, a third monitoring event, a fourth monitoring event, a fifth monitoring event and a sixth monitoring event, wherein the first monitoring event is used for limiting the content of the soluble pollutants in the coolant, namely monitoring the nuclear power station from the dimension of how much the content of the soluble pollutants is contained in the coolant; the second monitoring event is used for limiting the content of the metal oxide in the coolant, namely, monitoring the nuclear power plant from the dimension of how much the content of the metal oxide is contained in the coolant; the third monitoring event is used for limiting the content of lithium and the content of hydrogen in the coolant, namely monitoring the nuclear power station from the dimension of the content of lithium and the content of hydrogen in the coolant; a fourth monitoring event is used for limiting the sodium content in the coolant, namely monitoring the nuclear power plant from the dimension of how much sodium content is contained in the coolant; a fifth monitoring event is used for limiting the content of radioactive substances in the coolant, namely monitoring the nuclear power plant from the dimension of how much radioactive substances are contained in the coolant; the sixth monitoring event is used to limit the impurity content in the coolant, i.e. to monitor the nuclear power plant from the dimension of how much impurity content is contained in the coolant. The compounds related to the monitoring event at least comprise one compound, and can also comprise a plurality of compounds, and the monitoring values of the plurality of compounds jointly determine whether the monitoring event has abnormality.

For example, the server may compare the monitored value of each compound related to the soluble contaminant with a corresponding monitored value threshold, then set a corresponding score for each compound based on a proportion of the monitored value of the compound exceeding the preset monitored value threshold, then weight the score of each compound related to the soluble contaminant to obtain a score for the first monitored event, and compare the score for the first monitored event with the preset score threshold, and determine that the first monitored event is abnormal when the score for the first monitored event exceeds the preset score threshold; the monitoring value of each compound related to the soluble pollutant can be compared with a corresponding monitoring value threshold value, and when the monitoring value of one compound exceeds the corresponding monitoring value threshold value by a preset percentage, the first monitoring event is abnormal; there are many ways to determine whether a monitored event is abnormal, and this is not a limitation of the present application.

Step S206, if abnormal monitoring events exist in the plurality of monitoring events, determining a chemical efficiency control strategy of the nuclear power station based on the abnormal monitoring events; the chemical efficiency control strategy is used for improving the chemical efficiency of the nuclear power plant.

Wherein, the abnormal monitoring event at least comprises one or a plurality of monitoring events; when the monitoring event is abnormal, the user can trace the monitoring value of the compound related to the monitoring event, and can also specifically reach the monitoring value of one or more corresponding compounds, so as to determine a corresponding chemical efficiency control strategy according to the specific monitoring value of the compound, for example, the chemical efficiency control strategy can be to add a filter screen at a connected pipeline, a steam generator and the like, or add a new compound to neutralize the compound to be controlled, and the like. The present application is not limited thereto.

For example, if the second monitoring event is abnormal, the compound related to the second monitoring event is suspended iron, which indicates that the content of suspended iron in the coolant of the steam generator exceeds the standard, a filter screen may be added to the steam generator to filter the suspended iron in the coolant in the steam generator, and then the steam generator is cleaned regularly, so that the performance of the steam generator is improved, and the service life of the steam generator is prolonged.

The embodiment of the application provides a chemical efficiency control method of a nuclear power station, which comprises the steps of determining monitoring values of a plurality of compounds in a coolant of the nuclear power station according to a chemical efficiency evaluation instruction triggered by a user, and judging whether the monitoring values of the plurality of compounds exceed corresponding thresholds; wherein the coolant is placed in a primary loop system of the nuclear power plant and a secondary loop system of the nuclear power plant; judging whether a plurality of monitoring events of the nuclear power station are abnormal or not according to the monitoring values of the plurality of compounds under the condition that the monitoring values of the plurality of compounds exceed the monitoring value threshold value; monitoring events for limiting the amount of compounds in the coolant; and under the condition that abnormal monitoring events exist in the plurality of monitoring events, determining a chemical efficiency control strategy of the nuclear power station based on the abnormal monitoring events so as to improve the chemical efficiency of the nuclear power station. The chemical efficiency control method of the nuclear power plant can provide accurate data support for the user to determine the chemical efficiency control strategy of the nuclear power plant, so that the user can determine the chemical efficiency control strategy of the nuclear power plant in a targeted manner, and the chemical efficiency of the nuclear power plant is effectively improved.

In one embodiment, as shown in fig. 3, fig. 3 is a step of a possible implementation method for determining a chemical efficiency score of a nuclear power station according to an embodiment of the present application, where the method includes:

in step S302, a score of the monitored event is calculated, where the score is used to characterize the probability of abnormality of the monitored event.

Wherein, the scoring of each compound can be performed according to the percentage that the monitoring value of the compound related to the monitoring event exceeds the preset monitoring value threshold value, and then the scoring of each compound is weighted to obtain the scoring of the monitoring event; scoring the monitored event based on a compound that exceeds a predetermined monitored value threshold by a maximum; there may be other methods of calculating a scoring of a monitored event, which are not limited in this application.

Illustratively, for a predetermined monitoring period, the monitored value of suspended iron is 0.5 μg/kg, 0.6 μg/kg, 0.7 μg/kg, 0.8 μg/kg, 0.9 μg/kg, and the monitored value of suspended iron is 0.8 μg/kg, then the percentage of the monitored value of suspended iron that exceeds the predetermined monitored value threshold is 12.5%. For example, a score of 1 for 12.5% corresponds, then a score of 1 for the second monitored event.

According to the chemical efficiency control method for the nuclear power station, provided by the embodiment of the application, each monitoring event is scored, scattered data are integrated and analyzed, the chemical efficiency of the nuclear power station is estimated from different dimensions, a user can grasp the control advantages and disadvantages of the chemical efficiency of the nuclear power station on the whole conveniently, and the problem that the user cannot estimate the whole chemical efficiency of the nuclear power station only through a single compound monitoring value is avoided.

Step S304, determining the chemical efficiency score of the nuclear power plant according to the preset basic and the scores of the monitoring events.

For example, the preset basic score may be, for example, 100 scores, the score of the first monitoring event is calculated by the method and obtained as 2 scores, the score of the second monitoring event is obtained as 3 scores, the score of the third monitoring event is obtained as 4 scores, the score of the fourth monitoring event is obtained as 1 score, the score of the fifth monitoring event is obtained as 2 scores, and the score of the sixth monitoring event is obtained as 3 scores, and then the chemical efficiency score of the nuclear power station may be obtained after the weighting of the basic score and the scores of the plurality of monitoring events is worse, and then the chemical efficiency score of the nuclear power station is obtained as 85 scores. The chemical efficiency of the nuclear power plant may be determined to be qualified when the chemical efficiency score of the nuclear power plant is 80 hours; the chemical efficiency of the nuclear power plant may be determined to be excellent when the chemical efficiency score of the nuclear power plant is 90 hours, and the present application is not limited thereto.

According to the chemical efficiency control method for the nuclear power station, the chemical efficiency score of the nuclear power station is determined through the preset basic and the scoring of the plurality of monitoring events, a more visual basis for evaluating the chemical efficiency of the nuclear power station is provided for a user, the situation that the user evaluates the chemical efficiency of the nuclear power station through one of the monitoring values of a plurality of single compounds is avoided, time, manpower and material resources are wasted, and no unified evaluation standard is adopted, so that the chemical efficiency evaluation of the nuclear power station is inaccurate.

Step S306, outputting chemical efficiency prompt information; the chemical efficiency cue information is used for indicating the chemical efficiency score.

The method can be used for displaying the chemical efficiency score of the nuclear power plant for the user on the display screen of the server, so that the user can conveniently check the chemical efficiency score of the nuclear power plant, and can grasp the advantages and disadvantages of the chemical efficiency of the nuclear power plant according to one chemical efficiency score, so that the user is prevented from processing the monitoring values of various single compounds, more data need to be processed, the processing period of the data is long, and the chemical efficiency evaluation of the nuclear power plant is not timely and accurate.

Optionally, the method further comprises: based on the monitored values of the plurality of compounds, a monitored value of the compound associated with each of the plurality of monitored events is determined.

The compound related to each monitoring event may include one or more compounds, and the monitoring value of the compound may be directly obtained from the memory of the server, or may be monitored in real time during preset monitoring. The monitored value for each compound may include a plurality. This application is not hereby exemplified.

The embodiment of the application provides a chemical efficiency control method of a nuclear power station, which further determines the chemical efficiency of the nuclear power station in different dimensions by determining the monitoring value of a compound related to each monitoring event, so that the chemical efficiency evaluation of the nuclear power station is more accurate.

In one embodiment, this embodiment is a possible implementation method for determining a monitored value of a compound related to a first monitoring event when the monitoring event is the first monitoring event, the method including:

and monitoring the coolant of the first loop system and the coolant of the second loop system in the first monitoring period, and acquiring a monitoring value of chloride in the coolant of the first loop system, a monitoring value of sulfate in the coolant of the first loop system, a monitoring value of fluoride in the coolant of the first loop system, a monitoring value of sodium in the waste coolant of the second loop system, a monitoring value of chloride in the waste coolant of the second loop system, a monitoring value of sulfate in the waste coolant of the second loop system and a monitoring value of dissolved oxygen in the supply coolant of the second loop system.

The first monitoring duration may be a total monitoring duration preset for chemical efficiency evaluation of the entire nuclear power plant, the first monitoring duration may also be a duration set by a user to be smaller than the preset total monitoring duration, and the first monitoring duration may be the same as or different from the second monitoring duration, the third monitoring duration, the fourth monitoring duration, the fifth monitoring duration and the sixth monitoring duration described below, which are not limited in this application. The compound belongs to soluble pollutants in coolants of a primary loop system and a secondary loop system, and the soluble pollutants exceeding a threshold value can influence the circulation of a pipeline, corrode the pipeline and reduce the service life of the pipeline.

For example, the monitoring values of the chlorides in the coolant of the one circuit system may be obtained at preset time intervals, for example, the monitoring values of the chlorides in the coolant of the 10 one circuit systems are obtained in the first monitoring period, the monitoring values of the chlorides in the coolant of the one circuit system may be obtained by weighted averaging the monitoring values of the 10 chlorides, the monitoring values exceeding the threshold value of the monitoring values in the 10 monitoring values may be obtained by weighted averaging the monitoring values of the chlorides in the coolant of the one circuit system, or the maximum monitoring value exceeding the threshold value of the monitoring values in the 10 monitoring values may be taken as the monitoring value of the chlorides in the coolant of the one circuit system, which is not limited in this application.

The embodiment of the application discloses a chemical efficiency control method of a nuclear power station, which monitors the use environments of pipelines for transmitting coolant in a primary loop system and a secondary loop system by monitoring the monitoring values of soluble pollutants in the coolant circulating in the primary loop system and the secondary loop system so as to ensure the normal circulation of the pipelines and prolong the service life of the pipelines.

In one embodiment, the embodiment is a possible implementation method for determining whether an abnormality occurs in a first monitoring event, and the method includes:

according to T ₁ 、T ₂ 、V ₁ 、S ₁ 、S ₂ 、S ₃ Calculating a score of the first monitored event by the first constant and the second constant; wherein T is ₁ For a first monitoring period of time, T ₂ For a cumulative first duration of time that the monitored value of the soluble contaminant is between the first monitored value threshold and the second monitored value threshold, V ₁ For maximum monitoring of soluble contaminants during the first monitoring period, when V ₁ Is smaller than S ₁ V at the time of ₁ Taking 0 as V ₁ Greater than S ₃ V at the time of ₁ S is taken out ₃ ，S ₁ S is a first monitoring value threshold of the soluble pollutant ₂ S is a second monitoring value threshold of the soluble pollutant ₃ A third monitored value threshold for a soluble contaminant;

and when the scoring of the first monitoring event exceeds a preset first scoring threshold value, determining that the first monitoring event is abnormal.

Alternatively, when V ₁ Greater than S ₂ And is less than S ₃ When according to T ₁ 、T ₂ 、V ₁ 、S ₁ 、S ₂ And calculating a score for the first monitored event from the first constant;

when V is ₁ Greater than S ₃ When according to T ₁ 、T ₂ 、V ₁ 、S ₁ 、S ₂ 、S ₃ The first constant and the second constant calculate a score for the first monitored event.

Exemplary, can be according toAnd +.>Or->A score for the first monitored event is calculated. Wherein, when dissolved contaminantsThe current monitoring value is less than S ₁ V at the time of ₁ Calculated as 0, then the score for the first monitored event is 0; when the current monitoring value V of the soluble pollutant ₁ Greater than S ₁ And is less than S ₂ Time of day _， By->Calculating a score of the first monitored event, wherein V ₁ Taking the maximum monitoring value in the first monitoring duration; when the current monitoring value V of the soluble pollutant ₁ Greater than S ₂ And is less than S ₃ When passing->Calculating to obtain a score of the first monitored event, wherein V ₁ Taking the maximum monitoring value in the first monitoring duration; when the current monitoring value V of the soluble pollutant ₁ Greater than S ₃ When passing->Calculating a score of the first monitored event, wherein V ₁ S is taken out ₃ . For example, the score of the first monitored event calculated by the method is 2, and assuming that the preset first score threshold is 5, the score of the first monitored event does not exceed the preset first score threshold, and it is determined that no abnormality occurs in the first monitored event.

The embodiment of the application provides a chemical efficiency control method of a nuclear power station, which is based on T ₁ 、T ₂ 、V ₁ 、 S ₁ 、S ₂ 、S ₃ The first constant and the second constant calculate the scoring of the first monitoring event, the required data is easy to obtain, and different monitoring value threshold scoring conditions are set to calculate the scoring of the first monitoring event, so that the scoring of the first monitoring event is more reasonable.

In one embodiment, this embodiment is a possible implementation method for determining a monitored value of a compound related to a second monitored event when the monitored event is a first monitored event, the method comprising:

and during the second monitoring period, monitoring the supplied coolant of the two-loop system, and acquiring a monitoring value of suspended iron in the supplied coolant.

The second monitoring event is used to limit the content of suspended iron in the coolant supplied by the steam generator, because the exceeding content of suspended iron affects the performance and service life of the steam generator.

The embodiment of the application discloses a chemical efficiency control method of a nuclear power station, which monitors the internal use environment of a steam generator by monitoring the monitoring value of suspended iron in a supplied coolant of a two-loop system, so as to ensure the use performance of the steam generator and prolong the service life of the steam generator.

In one embodiment, the method includes the steps of:

according to T ₃ 、T ₄ 、V ₂ S and S ₄ Calculating a score for the second monitored event;

wherein T is ₃ For a second monitoring period of time, T ₄ To accumulate the second time period in which the monitoring value of the suspended iron exceeds the fourth monitoring value threshold value in the second time period, V ₂ For maximum monitoring value of suspended iron in second time period S ₄ A fourth monitored value threshold value for suspended iron;

and when the scoring of the second monitoring event exceeds a preset second scoring threshold, determining that the second monitoring event is abnormal.

Exemplary, can be according toCalculating a score of a second monitored event, e.g. T ₃ For 30 hours, the monitoring value of the suspended iron exceeds S in 30 continuous hours ₄ The cumulative duration of (which may be discontinuous) is 5 hours, then T ₄ Then it is 5 hours, V ₂ For a maximum monitored value of 0.9 μg/kg of suspended iron over 5 hours, a score of about 0.2 was calculated for the second monitored event. Assuming a presetAnd if the second scoring threshold value is 2, the scoring of the second monitoring event does not exceed the preset second scoring threshold value, and determining that the second monitoring event is not abnormal.

The embodiment of the application provides a chemical efficiency control method of a nuclear power station, which is based on T ₃ 、T ₄ 、V ₂ S and S ₄ And calculating the scoring of the second monitoring event, so that the required data is easy to acquire, the scoring of the second monitoring event can be quickly obtained, and the efficiency of the chemical efficiency evaluation of the nuclear power station is improved.

In one embodiment, this embodiment is a possible implementation method for determining a monitored value of a compound related to a third monitoring event when the monitoring event is the third monitoring event, the method including:

and in the third monitoring period, monitoring the coolant of the loop system, and acquiring the monitoring value of lithium and the monitoring value of hydrogen in the coolant of the loop system.

The coolant is located in a pipeline of a nuclear reactor of a loop system, the content of lithium and hydrogen in the coolant exceeds a threshold value, so that the acid-base balance of the coolant can be influenced, the pipeline of the nuclear reactor can be corroded by the change of the pH value, and the service life of the pipeline of the nuclear reactor is shortened.

The embodiment of the application discloses a chemical efficiency control method of a nuclear power station, which monitors the internal use environment of a pipeline of the nuclear power station by monitoring the monitoring value of lithium and the monitoring value of hydrogen in the pipeline of the nuclear power station of a loop system so as to ensure the use performance of the pipeline of the nuclear power station and prolong the service life of the pipeline of the nuclear power station.

In one embodiment, the method includes the steps of:

according to T ₅ 、T ₆ Calculating a score for the third monitored event based on the third constant and the fourth constant;

wherein T is ₅ For accumulating the third time period, T, in which the monitoring value of lithium exceeds the preset first monitoring value range in the third monitoring time period ₆ Accumulating a fourth time period for the monitored value of hydrogen in the third monitored time period to exceed the preset second monitored value range;

and when the scoring of the third monitoring event exceeds a preset third scoring threshold, determining that the third monitoring event is abnormal.

Exemplary, can be according toOr->A score for the third monitored event is calculated. Wherein the first monitoring value range is, for example, [6.9ml/kg,7.2ml/kg ]]The second monitoring value range is, for example, [22ml/kg,40ml/kg ]]Assuming that the third monitoring period is 30 hours, the monitored value of lithium exceeds [6.9ml/kg,7.2ml/kg ] in the third monitoring period]The cumulative time period of (2) is 6 hours, and the hydrogen monitoring value exceeds [22ml/kg,40ml/kg ] in the third monitoring time period]The cumulative time period of (2) is 4 hours, when the monitored value of lithium is less than 7.2ml/kg and the monitored value of hydrogen is less than 40ml/kg, the lithium is added by +. >Calculating a score of about 0.4 for the third monitored event; when the monitored value of lithium is more than 7.2ml/kg and the monitored value of hydrogen is less than 40ml/kg, the method is carried out by +.>Calculating a score of about 10.4 for the third monitored event; when the monitored value of lithium is less than 7.2ml/kg and the monitored value of hydrogen is greater than 40ml/kg, the method is carried out by +.>Calculating a score of about 10.4 for the third monitored event; when the monitored value of lithium is greater than 7.2ml/kg and the monitored value of hydrogen is greater than 40ml/kg, the method is carried out by +.>The score for the third monitored event was calculated to be about 20.4. Assuming a third predetermined scoring threshold of 15, the third monitored event is scored as if the monitored value of lithium is greater than 7.2ml/kg, hydrogen is monitoredAnd when the value is greater than 40ml/kg, exceeding a preset third scoring threshold value, and determining that the third monitoring event is abnormal.

The embodiment of the application provides a chemical efficiency control method of a nuclear power station, which is based on T ₅ 、T ₆ And calculating the scoring of the third monitoring event by the third constant and the fourth constant, wherein required data is easy to acquire, and the scoring of the third monitoring event is calculated by setting different threshold range scoring conditions of the monitoring value, so that the scoring of the third monitoring event is more reasonable.

In one embodiment, this embodiment is a possible implementation method for determining a monitored value of a compound related to a fourth monitoring event when the monitoring event is the fourth monitoring event, the method including:

And in the fourth monitoring period, monitoring the waste coolant of the two-loop system, and obtaining a monitoring value of sodium in the waste coolant.

Wherein, the sodium content exceeding the preset threshold value in the waste coolant of the two-circuit system is different from the first monitoring event, and the fourth monitoring event is to monitor the sodium with low concentration in the waste coolant of the two-circuit system for a long time. If low concentrations of sodium are present in the spent coolant in the steam generator for long periods of time, the performance and life of the steam generator may also be affected.

The embodiment of the application discloses a chemical efficiency control method of a nuclear power station, which monitors the internal use environment of a steam generator by monitoring the monitoring value of sodium in waste coolant of a two-loop system, ensures the use performance of the steam generator and prolongs the service life of the steam generator.

In one embodiment, the method includes the steps of:

according to S ₅ 、T ₇ 、T ₈ 、V ₃ S and S ₆ Calculating a score for the fourth monitoring event;

wherein S is ₅ A fifth monitoring value threshold of sodium, S ₆ Sixth monitoring for sodium Value threshold, T ₇ For a fourth monitoring period of time, T ₈ To accumulate the third time period in which the monitored value of sodium exceeds the fifth monitored value threshold value in the fourth monitored time period, V ₃ For the maximum monitored value of sodium in the third time period, when V ₃ Greater than S ₆ V at the time of ₃ S is taken out ₆ ；

And when the scoring of the fourth monitoring event exceeds a preset fourth scoring threshold, determining that the fourth monitoring event is abnormal.

Exemplary, can be according toCalculating the scoring of the fourth monitoring event, assuming that the fourth monitoring time period is 30 hours, the fifth monitoring value threshold of sodium is 0.2 mug/kg, the sixth monitoring value threshold of sodium is 3 mug/kg, the cumulative time period that the monitoring value of sodium exceeds the fifth monitoring value threshold in the fourth monitoring time period is 6 hours, the maximum monitoring value of sodium in 6 hours is 2 mug/kg, the scoring of the fourth monitoring event is 0.02, and if the fourth scoring threshold is 5, it is determined that the fourth monitoring event is not abnormal. If the maximum monitored value of sodium in 6 hours is 3 mug/kg or more than the sixth monitored value threshold of sodium, V ₃ Sixth monitoring value threshold S of sodium ₆ Substituting the formula calculates a score for the fourth monitored event.

The embodiment of the application provides a chemical efficiency control method of a nuclear power station, which is based on S ₅ 、T ₇ 、T ₈ 、 V ₃ S and S ₆ And calculating the scoring of the fourth monitoring event, so that the required data is easy to acquire, the scoring of the fourth monitoring event can be quickly obtained, and the efficiency of the chemical efficiency evaluation of the nuclear power station is improved.

In one embodiment, this embodiment is a possible implementation method for determining a monitored value of a compound related to a fifth monitoring event when the monitoring event is the fifth monitoring event, the method including:

and in the fifth monitoring period, monitoring the coolant of the loop system, and obtaining the effective specific activity of cobalt-58, the effective specific activity of cobalt-60 and the monitoring value of zinc in the coolant of the loop system.

Wherein the coolant of a loop system is coolant located in a conduit of a loop system nuclear reactor, and radioactive materials in the coolant at such a location exceeding a predetermined threshold may be detrimental to the physical health of a person.

The embodiment of the application discloses a chemical efficiency control method of a nuclear power station, which monitors the working environment of a user by monitoring the monitoring value of radioactive substances in a pipeline of the nuclear power station of a loop system, so as to avoid damage to the physical health of the user.

In one embodiment, the method includes the steps of:

According to V ₄ 、V ₅ 、V ₆ 、V ₇ 、V ₈ V (V) ₉ Calculating a score for the fifth monitored event;

wherein V is ₄ For the minimum effective specific activity of cobalt-58 in the fifth monitoring period, V ₅ For maximum effective specific activity of cobalt-58 in the fifth monitoring period, V ₆ For the minimum effective specific activity of cobalt-60 in the fifth monitoring period, V ₇ For maximum effective specific activity of cobalt-60 in the fifth monitoring period, V ₈ V being the minimum monitoring value of zinc in the fifth monitoring period ₉ The maximum monitoring value of zinc in the fifth monitoring duration is set;

and when the scoring of the fifth monitoring event exceeds a preset fifth scoring threshold value, determining that the fifth monitoring event is abnormal.

Exemplary, can be according toCalculating a score for a fifth monitored event, assuming a fifth monitored duration of 30 hours, the minimum effective specific activity V of cobalt-58 over the fifth monitored duration ₄ Maximum effective specific activity V of cobalt-58 for the fifth monitoring period of time at 10MBq/t ₅ Minimum effective specific activity V of cobalt-60 in the fifth monitoring period of 60MBq/t ₆ Maximum effective specific activity V of cobalt-60 at 10MBq/t for the fifth monitoring period ₇ At 60MBq/t, zincMinimum monitoring value V in fifth monitoring period ₈ Maximum monitoring value V of zinc in the fifth monitoring period of time at 1 mug/kg ₉ A score of 1 for the fifth monitored event was calculated according to the calculation formula described above at 3 μg/kg.

The embodiment of the application provides a chemical efficiency control method for a nuclear power station, V ₄ 、V ₅ 、V ₆ 、V ₇ 、 V ₈ V (V) ₉ And calculating the scoring of the fifth monitoring event, wherein a plurality of factors are considered, so that the scoring of the fifth monitoring event is more close to the actual basis, and the judgment of whether the fifth monitoring event is abnormal or not is more accurate.

In one embodiment, this embodiment is a possible implementation method for determining a monitored value of a compound related to a sixth monitored event when the monitored event is the sixth monitored event, the method including:

and in the sixth monitoring period, monitoring the water tank coolant of the first loop system and the replenishment coolant of the second loop system, and acquiring a monitoring value of dissolved oxygen in the water tank coolant of the first loop system, a monitoring value of sodium in the water tank coolant of the first loop system, a monitoring value of chloride in the water tank coolant of the first loop system, a monitoring value of sulfate in the water tank coolant of the first loop system, a monitoring value of sodium in the water tank coolant of the first loop system, a monitoring value of chloride in the water tank coolant of the second loop system and a monitoring value of sulfate in the water tank coolant of the second loop system.

The sixth monitoring time is used for monitoring the content of impurities in the coolant in the water tank for replenishing the coolant for the first loop system and the second loop system. Impurities in the make-up tanks of the primary and secondary circuit systems exceeding a predetermined threshold affect subsequent coolant circulation, affecting the performance of the primary and secondary circuit systems.

According to the chemical efficiency control method for the nuclear power station, the monitoring value of impurities in the coolant of the water tank supplied by the first loop system and the second loop system is used for monitoring source coolant of the first loop system and the second loop system, so that the later use effect of the coolant is guaranteed, and the chemical efficiency of the first loop system and the second loop system is improved.

In one embodiment, the method includes the steps of:

according to T _9、 T _10、 V _10、 S _7、 S _8、 S _9、 Calculating a score of a sixth monitored event by the fifth constant and the sixth constant;

wherein T is ₉ For the sixth monitoring period, T ₁₀ To accumulate the fourth time period in which the impurity is in the seventh monitoring value threshold value and the eighth monitoring value threshold value in the sixth monitoring time period, V ₁₀ For the maximum monitored value of the impurity in the fourth time period, S ₇ Is the seventh monitoring value threshold value of the impurity, S ₈ Is the eighth monitoring value threshold value of the impurity, S ₉ A ninth monitored value threshold for impurities;

and when the scoring of the sixth monitoring event exceeds a preset sixth scoring threshold, determining that the sixth monitoring event is abnormal.

Alternatively, when V ₁₀ When the value is larger than the eighth monitoring value threshold and smaller than the ninth monitoring value threshold, according to T _9、 T _10、 V _10、 S _7、 S ₈ A fifth routine calculates a score for the sixth monitored event;

when V is ₁₀ When the value is greater than the ninth monitoring value threshold value, according to T _9、 T _10、 V _10、 S _7、 S _8、 S _9、 The fifth constant and the sixth constant calculate a score for the sixth monitored event.

Exemplary, can be according toOr->Wherein when the current monitoring value of the impurity is less than S ₇ V at the time of ₁₀ Calculated as 0, then the score for the sixth monitored event is 0; when the current monitoring value V of the impurity ₁₀ Greater than S ₇ And is less than S ₈ Time of day _， By->Calculating a score for a sixth monitored event, wherein V ₁₀ Taking the maximum monitoring value in the sixth monitoring time period; when the current monitoring value V of the impurity ₁₀ Greater than S ₈ And is less than S ₉ Time of day _， By->Calculating a score for a sixth monitored event, wherein V ₁₀ Taking the maximum monitoring value in the sixth monitoring time period; when the current monitoring value V of the impurity ₁₀ Greater than S ₉ Time of day _， By passing throughCalculating a score for a sixth monitored event, wherein V ₁₀ S is taken out ₉ . For example, the score of the sixth monitored event calculated by the method is 5, and assuming that the preset first score threshold is 4, the score of the sixth monitored event exceeds the preset sixth score threshold, and it is determined that the sixth monitored event is abnormal.

The embodiment of the application provides a chemical efficiency control method for a nuclear power station, T _9、 T _10、 V _10、 S _7、 S _8、 S _9、 The fifth constant and the sixth constant calculate the scoring of the sixth monitoring event, the required data are easy to obtain, and different monitoring value threshold scoring conditions are set to calculate the scoring of the sixth monitoring event, so that the scoring of the sixth monitoring event is more reasonable.

It should be understood that, although the steps in the flowcharts of fig. 2-3 are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in fig. 2-3 may include multiple steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor do the order in which the steps or stages are performed necessarily performed in sequence, but may be performed alternately or alternately with at least a portion of the steps or stages in other steps or other steps.

In one embodiment, a chemical efficiency control apparatus 200 for a nuclear power plant is provided as shown, the apparatus comprising:

A determining and judging module 21, configured to determine monitoring values of a plurality of compounds in the coolant of the nuclear power plant in response to a chemical efficiency evaluation instruction triggered by a user, and judge whether the monitoring values of the plurality of compounds exceed corresponding thresholds; the coolant is placed in a primary loop of the nuclear power plant and a secondary loop of the nuclear power plant;

the determining and judging module 21 is further configured to judge whether a plurality of monitoring events of the nuclear power plant are abnormal according to the monitoring values of the plurality of compounds if a compound whose monitoring value exceeds the monitoring value threshold exists in the plurality of compounds; the monitoring event is used to limit the monitoring of compounds in the coolant;

the determining and judging module 21 is further configured to determine a chemical efficiency control policy of the nuclear power plant based on the abnormal monitoring event if the abnormal monitoring event exists in the plurality of monitoring events; the chemical efficiency control strategy is used for improving the chemical efficiency of the nuclear power plant.

In another embodiment, the chemical efficiency control apparatus further includes: the calculation output module 22,

the calculation output module 22 is configured to calculate a score of the monitored event, where the score is used to characterize a probability of occurrence of an anomaly of the monitored event; determining chemical efficiency scores of the nuclear power station according to the preset basic and scores of a plurality of monitoring events; outputting chemical efficiency prompt information; the chemical efficacy cue information is used to indicate a chemical efficacy score.

In another embodiment, the determining and judging module 21 is specifically configured to determine the monitored value of the compound related to each of the plurality of monitoring events according to the monitored values of the plurality of compounds.

In another embodiment, the determining and judging module 21 is specifically configured to monitor the coolant of the first circuit system and the coolant of the second circuit system during the first monitoring period, and obtain a monitored value of chloride in the coolant of the first circuit system, a monitored value of sulfate in the coolant of the first circuit system, a monitored value of fluoride in the coolant of the first circuit system, a monitored value of sodium in the waste coolant of the second circuit system, a monitored value of chloride in the waste coolant of the second circuit system, a monitored value of sulfate in the waste coolant of the second circuit system, and a monitored value of dissolved oxygen in the supply coolant of the second circuit system.

In another embodiment, the determining and judging module 21 is specifically configured to determine, according to T ₁ 、T ₂ 、V ₁ 、S ₁ 、 S ₂ 、S ₃ Calculating a score of the first monitored event by the first constant and the second constant; wherein T is ₁ For the first monitoring duration, T ₂ For a cumulative first duration of time that the monitored value of the soluble contaminant is between the first monitored value threshold and the second monitored value threshold, V ₁ As the actual monitoring value of the soluble contaminant, when V ₁ Greater than S ₃ V at the time of ₁ S is taken out ₃ ，S ₁ S is a first monitoring value threshold of the soluble pollutant ₂ S is a second monitoring value threshold of the soluble pollutant ₃ A third monitored value threshold for a soluble contaminant; and when the scoring of the first monitoring event exceeds a preset first scoring threshold value, determining that the first monitoring event is abnormal.

In another embodiment, the determining and judging module 21 is specifically configured to, when V ₁ Greater than S ₂ And is less than S ₃ When according to T ₁ 、T ₂ 、V ₁ 、S ₁ 、S ₂ And calculating a score for the first monitored event with the first constant; when V is ₁ Greater than S ₃ When according to T ₁ 、T ₂ 、V ₁ 、S ₁ 、S ₂ 、S ₃ The first constant and the second constant calculate a score for the first monitored event.

In another embodiment, the determining and judging module 21 is specifically configured to monitor the supply coolant of the two-circuit system during the second monitoring period, and obtain the monitored value of the suspended iron in the supply coolant.

In another embodiment, the determining and judging module 21 is specifically configured to determine, according to T ₃ 、T ₄ 、V ₂ S and S ₄ Calculating a score for the second monitored event; wherein T is ₃ For a second monitoring period of time, T ₄ To accumulate the second time period when the monitoring value of the suspended iron exceeds the fourth monitoring value threshold value in the second time period, V ₂ For maximum monitoring value of suspended iron in second time period S ₄ A fourth monitored value threshold value for suspended iron; and when the scoring of the second monitoring event exceeds a preset second scoring threshold value, determining that the second monitoring event is abnormal.

In another embodiment, the determining and judging module 21 is specifically configured to monitor the coolant of the one circuit system during the third monitoring period, and obtain the monitored value of lithium and the monitored value of hydrogen in the coolant of the one circuit system.

In another embodiment, the determining and judging module 21 is specifically configured to determine, according to T ₅ 、T ₆ Calculating a score for the third monitored event based on the third constant and the fourth constant; wherein T is ₅ For accumulating the third time period, T, in which the monitoring value of lithium exceeds the preset first monitoring value range in the third monitoring time period ₆ Accumulating a fourth time period when the monitored value of hydrogen in the third monitored time period exceeds a preset second monitored value range; and when the scoring of the third monitoring event exceeds a preset third scoring threshold, determining that the third monitoring event is abnormal.

In another embodiment, the determining and judging module 21 is specifically configured to monitor the waste coolant of the two-circuit system during the fourth monitoring period, and obtain the monitored value of sodium in the waste coolant.

In another embodiment, the determining and judging module 21 is specifically configured to determine, according to S ₅ 、T ₇ 、T ₈ 、V ₃ S and S ₆ Calculating a score for the fourth monitoring event; wherein S is ₅ A fifth monitoring value threshold of sodium, S ₆ A sixth monitored value threshold of sodium, T ₇ For a fourth monitoring period of time, T ₈ To accumulate the third time period in which the monitored value of sodium exceeds the fifth monitored value threshold value in the fourth monitored time period, V ₃ For the maximum monitored value of sodium in the third time period, when V ₃ Greater than S ₆ V at the time of ₃ S is taken out ₆ The method comprises the steps of carrying out a first treatment on the surface of the And when the scoring of the fourth monitoring event exceeds a preset fourth scoring threshold, determining that the fourth monitoring event is abnormal.

In another embodiment, the determining and judging module 21 is specifically configured to monitor the coolant of a circuit system during the fifth monitoring period, and obtain the effective specific activity of cobalt-58, the effective specific activity of cobalt-60, and the monitored value of zinc in the coolant of the circuit system.

In another embodiment, the determining and judging module 21 is specifically configured to determine the value according to V ₄ 、V ₅ 、V ₆ 、V ₇ 、 V ₈ V (V) ₉ Calculating a score for the fifth monitored event; wherein V is ₄ For the minimum effective specific activity of cobalt-58 in the fifth monitoring period, V ₅ For maximum effective specific activity of cobalt-58 in the fifth monitoring period, V ₆ For the minimum effective specific activity of cobalt-60 in the fifth monitoring period, V ₇ For maximum effective specific activity of cobalt-60 in the fifth monitoring period, V ₈ For the minimum monitoring value of zinc in the fifth monitoring period, V ₉ The maximum monitoring value of zinc in the fifth monitoring duration is set; and when the scoring of the fifth monitoring event exceeds a preset fifth scoring threshold value, determining that the fifth monitoring event is abnormal.

In another embodiment, the determining and judging module 21 is specifically configured to monitor the tank coolant of the first loop system and the replenishment coolant of the second loop system during the sixth monitoring period, and obtain a monitored value of dissolved oxygen in the tank coolant of the first loop system, a monitored value of sodium in the tank coolant of the first loop system, a monitored value of chloride in the tank coolant of the first loop system, a monitored value of sulfate in the tank coolant of the first loop system, a monitored value of sodium in the tank coolant of the first loop system, a monitored value of chloride in the tank coolant of the second loop system, and a monitored value of sulfate in the tank coolant of the second loop system.

In another embodiment, the determining and judging module 21 is specifically configured to determine, according to T _9、 T _10、 V _10、 S _7、 S _8、 S _9、 Calculating a score of a sixth monitored event by the fifth constant and the sixth constant; wherein T is ₉ For the sixth monitoring period, T ₁₀ To accumulate the fourth time period in which the impurity is in the seventh monitoring value threshold value and the eighth monitoring value threshold value in the sixth monitoring time period, V ₁₀ For the maximum monitored value of the impurity in the fourth time period, S ₇ Is the seventh monitoring value threshold value of the impurity, S ₈ Is the eighth monitoring value threshold value of the impurity, S ₉ A ninth monitored value threshold for impurities; and when the scoring of the sixth monitoring event exceeds a preset sixth scoring threshold, determining that the sixth monitoring event is abnormal.

In one embodiment, as shown in fig. 5, there is provided a chemical efficiency control apparatus of a nuclear power plant, including a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:

In another embodiment, the processor when executing the computer program further performs the steps of: calculating the scoring of the monitoring event, wherein the scoring is used for representing the probability of abnormality of the monitoring event;

determining chemical efficiency scores of the nuclear power plant according to the preset basic and the scores of the monitoring events;

outputting chemical efficiency prompt information; the chemical efficacy cue information is used to indicate a chemical efficacy score.

In another embodiment, the processor when executing the computer program further performs the steps of: based on the monitored values of the plurality of compounds, a monitored value of the compound associated with each of the plurality of monitored events is determined.

In another embodiment, the processor when executing the computer program further performs the steps of: and in the first monitoring period, monitoring the coolant of the first loop system and the coolant of the second loop system, and acquiring a monitoring value of chloride in the coolant of the first loop system, a monitoring value of sulfate in the coolant of the first loop system, a monitoring value of fluoride in the coolant of the first loop system, a monitoring value of sodium in the waste coolant of the second loop system, a monitoring value of chloride in the waste coolant of the second loop system, a monitoring value of sulfate in the waste coolant of the second loop system and a monitoring value of dissolved oxygen in the supply coolant of the second loop system.

In another embodiment, the processor when executing the computer program further performs the steps of: according to T ₁ 、 T ₂ 、V ₁ 、S ₁ 、S ₂ 、S ₃ Calculating a score of the first monitored event by the first constant and the second constant;

wherein T is ₁ For a first monitoring period of time, T ₂ For a cumulative first duration of time that the monitored value of the soluble contaminant is between the first monitored value threshold and the second monitored value threshold, V ₁ As the actual monitoring value of the soluble contaminant, when V ₁ Greater than S ₃ V at the time of ₁ S is taken out ₃ ，S ₁ S is a first monitoring value threshold of the soluble pollutant ₂ A second monitoring value threshold for soluble pollutants, S ₃ A third monitored value threshold for a soluble contaminant;

In another embodiment, the processor when executing the computer program further performs the steps of: when V is ₁ Greater than S ₂ And is less than S ₃ When according to T ₁ 、T ₂ 、V ₁ 、S ₁ 、S ₂ And calculating a score for the first monitored event with the first constant;

In another embodiment, the processor when executing the computer program further performs the steps of: and monitoring the supplied coolant of the two-circuit system during the second monitoring period, and acquiring a monitoring value of suspended iron in the supplied coolant.

In another embodiment, the processor when executing the computer program further performs the steps of: according to T ₃ 、 T ₄ 、V ₂ S and S ₄ Calculating a score for the second monitored event;

In another embodiment, the processor when executing the computer program further performs the steps of: and in the third monitoring period, monitoring the coolant of the loop system, and acquiring the monitoring value of lithium and the monitoring value of hydrogen in the coolant of the loop system.

In another embodiment, the processor when executing the computer program further performs the steps of: according to T ₅ 、 T ₆ Third constant and the fourthCalculating the scoring of the third monitoring event by using the four constants;

In another embodiment, the processor when executing the computer program further performs the steps of: and in the fourth monitoring period, monitoring the waste coolant of the two-loop system, and obtaining a monitoring value of sodium in the waste coolant.

In another embodiment, the processor when executing the computer program further performs the steps of: according to S ₅ 、 T ₇ 、T ₈ 、V ₃ S and S ₆ Calculating a score for the fourth monitoring event;

wherein S is ₅ A fifth monitoring value threshold of sodium, S ₆ A sixth monitored value threshold of sodium, T ₇ For a fourth monitoring period of time, T ₈ To accumulate the third time period in which the monitored value of sodium exceeds the fifth monitored value threshold value in the fourth monitored time period, V ₃ For the maximum monitored value of sodium in the third time period, when V ₃ Greater than S ₆ V at the time of ₃ S is taken out ₆ ；

In another embodiment, the processor when executing the computer program further performs the steps of: and in the fifth monitoring period, monitoring the coolant of the loop system, and obtaining the effective specific activity of cobalt-58, the effective specific activity of cobalt-60 and the monitoring value of zinc in the coolant of the loop system.

In another embodiment, the processor when executing the computer program further performs the steps of: according to V ₄ 、 V ₅ 、V ₆ 、V ₇ 、V ₈ V (V) ₉ Calculate the fifthScoring of monitoring events;

In another embodiment, the processor when executing the computer program further performs the steps of: and in the sixth monitoring period, monitoring the water tank coolant of the first loop system and the replenishment coolant of the second loop system, and acquiring a monitoring value of dissolved oxygen in the water tank coolant of the first loop system, a monitoring value of sodium in the water tank coolant of the first loop system, a monitoring value of chloride in the water tank coolant of the first loop system, a monitoring value of sulfate in the water tank coolant of the first loop system, a monitoring value of sodium in the water tank coolant of the first loop system, a monitoring value of chloride in the water tank coolant of the second loop system and a monitoring value of sulfate in the water tank coolant of the second loop system.

In another embodiment, the processor when executing the computer program further performs the steps of: according to T _9、 T _10、 V _10、 S _7、 S _8、 S _9、 Calculating a score of a sixth monitored event by the fifth constant and the sixth constant;

In another embodiment, the processor when executing the computer program further performs the steps of: when V is ₁₀ When the value is larger than the eighth monitoring value threshold and smaller than the ninth monitoring value threshold, according to T _9、 T _10、 V _10、 S _7、 S ₈ A fifth routine calculates a score for the sixth monitored event; when V is ₁₀ When the value is greater than the ninth monitoring value threshold value, according to T _9、 T _10、 V _10、 S _7、 S _8、 S _9、 The fifth constant and the sixth constant calculate a score for the sixth monitored event.

In one embodiment, a computer readable storage medium is provided having a computer program stored thereon, which when executed by a processor, performs the steps of:

In another embodiment, the computer program when executed by the processor further performs the steps of: calculating the scoring of the monitoring event, wherein the scoring is used for representing the probability of abnormality of the monitoring event;

In another embodiment, the computer program when executed by the processor further performs the steps of: based on the monitored values of the plurality of compounds, a monitored value of the compound associated with each of the plurality of monitored events is determined.

In another embodiment, the computer program when executed by the processor further performs the steps of: and monitoring the coolant of the first loop system and the coolant of the second loop system in the first monitoring period, and acquiring a monitoring value of chloride in the coolant of the first loop system, a monitoring value of sulfate in the coolant of the first loop system, a monitoring value of fluoride in the coolant of the first loop system, a monitoring value of sodium in the waste coolant of the second loop system, a monitoring value of chloride in the waste coolant of the second loop system, a monitoring value of sulfate in the waste coolant of the second loop system and a monitoring value of dissolved oxygen in the supply coolant of the second loop system.

In another embodiment, the computer program when executed by the processor further performs the steps of: according to T ₁ 、 T ₂ 、V ₁ 、S ₁ 、S ₂ 、S ₃ Calculating a score of the first monitored event by the first constant and the second constant;

In another embodiment, the computer program when executed by the processor further performs the steps of: when V is ₁ Greater than S ₂ And is less than S ₃ When according to T ₁ 、T ₂ 、V ₁ 、S ₁ 、S ₂ And calculating a score for the first monitored event with the first constant;

In another embodiment, the computer program when executed by the processor further performs the steps of: and during a second monitoring period, monitoring the supplied coolant of the two-loop system, and acquiring a monitoring value of suspended iron in the supplied coolant.

In another embodiment, the computer program when executed by the processor further performs the steps of: according to T ₃ 、 T ₄ 、V ₂ S and S ₄ Calculating a score for the second monitored event;

In another embodiment, the computer program when executed by the processor further performs the steps of: and in the third monitoring period, monitoring the coolant of the loop system, and acquiring the monitoring value of lithium and the monitoring value of hydrogen in the coolant of the loop system.

In another embodiment, the computer program when executed by the processor further performs the steps of: according to T ₅ 、 T ₆ Calculating a score for the third monitored event based on the third constant and the fourth constant;

In another embodiment, the computer program when executed by the processor further performs the steps of: and in the fourth monitoring period, monitoring the waste coolant of the two-loop system, and obtaining the monitoring value of sodium in the waste coolant.

In another embodiment, the computer program when executed by the processor further performs the steps of: according to S ₅ 、 T ₇ 、T ₈ 、V ₃ S and S ₆ Calculating a score for the fourth monitoring event;

In another embodiment, the computer program when executed by the processor further performs the steps of: and in the fifth monitoring period, monitoring the coolant of the loop system, and obtaining the effective specific activity of cobalt-58, the effective specific activity of cobalt-60 and the monitoring value of zinc in the coolant of the loop system.

In another embodiment, the computer program when executed by the processor further performs the steps of: according to V ₄ 、 V ₅ 、V ₆ 、V ₇ 、V ₈ V (V) ₉ Calculating a score for the fifth monitored event;

wherein V is ₄ For the minimum effective specific activity of cobalt-58 in the fifth monitoring period, V ₅ For maximum cobalt-58 in the fifth monitoring period Effective specific activity, V ₆ For the minimum effective specific activity of cobalt-60 in the fifth monitoring period, V ₇ For maximum effective specific activity of cobalt-60 in the fifth monitoring period, V ₈ V being the minimum monitoring value of zinc in the fifth monitoring period ₉ The maximum monitoring value of zinc in the fifth monitoring duration is set;

In another embodiment, the computer program when executed by the processor further performs the steps of: and in the sixth monitoring period, monitoring the water tank coolant of the first loop system and the replenishment coolant of the second loop system, and obtaining a monitoring value of dissolved oxygen in the water tank coolant of the first loop system, a monitoring value of sodium in the water tank coolant of the first loop system, a monitoring value of chloride in the water tank coolant of the first loop system, a monitoring value of sulfate in the water tank coolant of the first loop system, a monitoring value of sodium in the water tank coolant of the first loop system, a monitoring value of chloride in the water tank coolant of the second loop system and a monitoring value of sulfate in the water tank coolant of the second loop system.

In another embodiment, the computer program when executed by the processor further performs the steps of: according to T _9、 T _10、 V _10、 S _7、 S _8、 S _9、 Calculating a score of a sixth monitored event by the fifth constant and the sixth constant;

In another embodiment, a computer program is processedThe device also realizes the following steps when executing: when V is ₁₀ When the value is larger than the eighth monitoring value threshold and smaller than the ninth monitoring value threshold, according to T _9、 T _10、 V _10、 S _7、 S ₈ Calculating a score of the sixth monitored event with a fifth constant; when V is ₁₀ When the value is greater than the ninth monitoring value threshold value, according to T _9、 T _10、 V _10、 S _7、 S _8、 S _9、 The fifth constant and the sixth constant calculate a score for the sixth monitored event.

Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, or the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the spirit of the present application, which falls within the scope of the present application. Accordingly, the scope of protection of the present application is subject to the appended claims.

Claims

1. A chemical efficiency control method of a nuclear power plant, comprising:

If the compounds with the monitoring values exceeding the monitoring value threshold exist in the compounds, judging whether a plurality of monitoring events of the nuclear power station are abnormal or not according to the monitoring values of the compounds; the monitoring event is used to limit the compound content in the coolant;

if abnormal monitoring events exist in the plurality of monitoring events, determining a chemical efficiency control strategy of the nuclear power station corresponding to the abnormal monitoring events based on the abnormal monitoring events; the chemical efficiency control strategy is used for improving the chemical efficiency of the nuclear power station;

wherein the plurality of monitoring events includes a first monitoring event, a second monitoring event, a third monitoring event, a fourth monitoring event, a fifth monitoring event, and a sixth monitoring event; the first monitoring event is for limiting the content of soluble contaminants in the coolant; the second monitoring event is used to limit the content of metal oxide in the coolant, the metal oxide being iron oxide; the third monitoring event is used to limit the amount of lithium and the amount of hydrogen in the coolant; the fourth monitoring event is used to limit the sodium content of the coolant; the fifth monitoring event is used to limit the amount of radioactive material in the coolant; the sixth monitoring event is used to limit the level of impurities in the coolant;

Calculating a score of the monitoring event, wherein the score is used for representing the probability of abnormality of the monitoring event;

determining chemical efficiency scores of the nuclear power plant according to preset basic and scoring of the plurality of monitoring events;

outputting chemical efficiency prompt information; the chemical efficacy cue information is used to indicate the chemical efficacy score.

2. The method according to claim 1, wherein the method further comprises:

and determining the monitoring value of the compound related to each monitoring event in the plurality of monitoring events according to the monitoring values of the plurality of compounds.

3. The method of claim 2, wherein the plurality of monitoring events comprises: a first monitoring event for limiting the amount of soluble contaminants in the coolant,

the determining a monitored value of the compound associated with each of the plurality of monitored events comprises:

and monitoring the coolant of the first loop system and the coolant of the second loop system in a first monitoring period, and acquiring a monitoring value of chloride in the coolant of the first loop system, a monitoring value of sulfate in the coolant of the first loop system, a monitoring value of fluoride in the coolant of the first loop system, a monitoring value of sodium in the waste coolant of the second loop system, a monitoring value of chloride in the waste coolant of the second loop system, a monitoring value of sulfate in the waste coolant of the second loop system and a monitoring value of dissolved oxygen in the supply coolant of the second loop system.

4. A method according to claim 3, wherein said determining whether a plurality of monitored events of the nuclear power plant are abnormal based on the monitored values of the plurality of compounds comprises:

according to T ₁ 、T ₂ 、V ₁ 、S ₁ 、S ₂ 、S ₃ Calculating a score for the first monitored event, a first constant and a second constant;

wherein T is ₁ For the first monitoring duration, T ₂ For a cumulative first time period when the monitored value of the soluble pollutant is between the first monitored value threshold value and the second monitored value threshold value, V ₁ As the actual monitoring value of the soluble contaminant, when V ₁ Greater than S ₃ V at the time of ₁ S is taken out ₃ ，S ₁ Is the first monitoring value threshold value of the soluble pollutant, S ₂ Is the second monitoring value threshold value of the soluble pollutant, S ₃ A third monitored value threshold for the soluble contaminant;

5. The method according to claim 4, wherein said step of T ₁ 、T ₂ 、V ₁ 、S ₁ 、S ₂ 、S ₃ Calculating a score for the first monitored event, the score including:

when V is ₁ Greater than S ₂ And is less than S ₃ When according to T ₁ 、T ₂ 、V ₁ 、S ₁ 、S ₂ And calculating a score for the first monitored event with a first constant;

When V is ₁ Greater than S ₃ When according to T ₁ 、T ₂ 、V ₁ 、S ₁ 、S ₂ 、S ₃ A first constant and a second constant calculate a score for the first monitored event.

6. The method of claim 2, wherein the plurality of monitoring events comprises: a second monitoring event for limiting the content of metal oxides in the coolant,

and in the second monitoring period, monitoring the supplied coolant of the two-loop system, and acquiring a monitoring value of suspended iron in the supplied coolant.

7. The method of claim 6, wherein the determining whether a plurality of monitoring events of the nuclear power plant are abnormal based on the monitored values of the plurality of compounds comprises:

wherein T is ₃ For the second monitoring period, T ₄ For the accumulated second time period in which the monitored value of the suspended iron exceeds the fourth monitored value threshold value within the second monitored time period, V ₂ For the maximum monitoring value of the suspended iron in the second time period, S ₄ A fourth monitored value threshold value for the suspended iron;

8. The method of claim 2, wherein the plurality of monitoring events comprises: a third monitoring event for limiting the lithium content and the hydrogen content of the coolant,

and in the third monitoring period, monitoring the coolant of the first loop system, and acquiring the monitoring value of the lithium and the monitoring value of the hydrogen in the coolant of the first loop system.

9. The method of claim 8, wherein the determining whether a plurality of monitoring events of the nuclear power plant are abnormal based on the monitored values of the plurality of compounds comprises:

according to T ₅ 、T ₆ Calculating a score for the third monitored event, a third constant and a fourth constant;

wherein T is ₅ For the accumulated third time period in which the monitoring value of the lithium exceeds the preset first monitoring value range in the third monitoring time period, T ₆ Accumulating a fourth time period when the monitoring value of the hydrogen exceeds a preset second monitoring value range in the third monitoring time period;

10. The method of claim 2, wherein the plurality of monitoring events comprises: a fourth monitoring event for limiting the sodium content of the coolant,

and in the fourth monitoring period, monitoring the waste coolant of the two-loop system, and obtaining the monitoring value of the sodium in the waste coolant.

11. The method of claim 10, wherein the determining whether a plurality of monitoring events of the nuclear power plant are abnormal based on the monitored values of the plurality of compounds comprises:

according to S ₅ 、T ₇ 、T ₈ 、V ₃ S and S ₆ Calculating a score for the fourth monitored event;

wherein S is ₅ A fifth monitored value threshold value of the sodium, S ₆ A sixth monitored value threshold value of the sodium, T ₇ For the fourth monitoring period, T ₈ For a third accumulated time period in which the monitored value of sodium exceeds a fifth monitored value threshold value in the fourth monitored time period, V ₃ For the maximum monitored value of the sodium in the third time period, when V ₃ Greater than S ₆ V at the time of ₃ S is taken out ₆ ；

12. The method of claim 2, wherein the plurality of monitoring events comprises: a fifth monitoring event for limiting the amount of radioactive material in the coolant,

and in a fifth monitoring period, monitoring the coolant of the first loop system, and acquiring the effective specific activity of cobalt-58, the effective specific activity of cobalt-60 and the monitored value of zinc in the coolant of the first loop system.

13. The method of claim 12, wherein said determining whether a plurality of monitored events of the nuclear power plant are abnormal based on the monitored values of the plurality of compounds comprises:

wherein V is ₄ For the minimum effective specific activity of the cobalt-58 in the fifth monitoring period, V ₅ For the maximum effective specific activity of the cobalt-58 in the fifth monitoring period, V ₆ V for the minimum effective specific activity of the cobalt-60 in the fifth monitoring period ₇ For the maximum effective specific activity of the cobalt-60 in the fifth monitoring period, V ₈ V being the minimum monitoring value of the zinc in the fifth monitoring period ₉ A maximum monitoring value of the zinc in a fifth monitoring period;

and when the scoring of the fifth monitoring event exceeds a preset fifth scoring threshold, determining that the fifth monitoring event is abnormal.

14. The method of claim 2, wherein the plurality of monitoring events comprises: a sixth monitoring event for limiting the level of impurities in the coolant,

and in a sixth monitoring period, monitoring the water tank coolant of the first loop system and the replenishment coolant of the second loop system, and acquiring a monitoring value of dissolved oxygen in the water tank coolant of the first loop system, a monitoring value of sodium in the water tank coolant of the first loop system, a monitoring value of chloride in the water tank coolant of the first loop system, a monitoring value of sulfate in the water tank coolant of the first loop system, a monitoring value of sodium in the water tank coolant of the first loop system, a monitoring value of chloride in the water tank coolant of the second loop system and a monitoring value of sulfate in the water tank coolant of the second loop system.

15. The method of claim 14, wherein said determining whether a plurality of monitored events of the nuclear power plant are abnormal based on the monitored values of the plurality of compounds comprises:

according to T _9、 T _10、 V _10、 S _7、 S _8、 S _9、 A fifth constant and a sixth constant calculate a score for the sixth monitored event;

wherein T is ₉ For the sixth monitoring period, T ₁₀ To accumulate the fourth time period in which the impurity is in the seventh and eighth monitoring value thresholds for the sixth monitoring time period, V ₁₀ For the maximum monitoring value of the impurity in the fourth time period, S ₇ S is the seventh monitoring value threshold of the impurity ₈ S is the eighth monitoring value threshold value of the impurity ₉ A ninth monitored value threshold for the impurity;

16. The method according to claim 15, wherein said step of _9、 T _10、 V _10、 S _7、 S _8、 S _9、 A fifth constant and a sixth constant calculate a score for the sixth monitored event, comprising:

when V is ₁₀ When the value is larger than the eighth monitoring value threshold and smaller than the ninth monitoring value threshold, according to T _9、 T _10、 V _10、 S _7、 S ₈ A fifth routine calculates a score for the sixth monitored event;

When V is ₁₀ When the value is greater than the ninth monitoring value threshold value, according to T _9、 T _10、 V _10、 S _7、 S _8、 S _9、 A fifth constant and a sixth constant calculate a score for the sixth monitored event.

17. A chemical efficiency control device for a nuclear power plant, characterized in that it is adapted to carry out the steps of the method according to any one of claims 1 to 16, said device comprising:

the determining and judging module is used for responding to a chemical efficiency evaluation instruction triggered by a user, determining monitoring values of a plurality of compounds in the coolant of the nuclear power station and judging whether the monitoring values of the plurality of compounds exceed corresponding thresholds or not; the coolant is placed in a primary loop system of the nuclear power plant and a secondary loop system of the nuclear power plant;

the determining and judging module is further used for judging whether a plurality of monitoring events of the nuclear power station are abnormal according to the monitoring values of the plurality of compounds if the monitoring values of the plurality of compounds exceed the monitoring value threshold value; the monitoring event is used to limit the compound content in the coolant;

the determining and judging module is further used for determining a chemical efficiency control strategy corresponding to the abnormal monitoring event of the nuclear power station based on the abnormal monitoring event if the abnormal monitoring event exists in the plurality of monitoring events; the chemical efficiency control strategy is used for improving the chemical efficiency of the nuclear power station;

18. A chemical efficiency control apparatus of a nuclear power plant, the apparatus comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method of any one of claims 1 to 16.

19. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 16.