CN110533308B - Establishment method and availability evaluation method of process system availability database - Google Patents
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Abstract
The invention discloses a method for establishing a process system availability database and a method for evaluating the process system availability, wherein the method for establishing the process system availability database comprises the following steps: determining test items of relevant process systems of each nuclear power plant; determining a core function of the process system; judging the type of the test item according to the influence condition of the test item on the core function, wherein the type of the test item comprises an availability related test U type and a normal operation related test N type; and performing associated storage on the test items and the corresponding test item categories to obtain an availability database of the process system. The method can guide the establishment of the availability database of the process system of each nuclear power plant, and has the advantages of wider application range, simpler and more convenient operation and higher efficiency.
Description
Technical Field
The invention relates to the technical field of nuclear power plant tests, in particular to a method for establishing a process system availability database and a method for evaluating process system availability.
Background
The nuclear power plant operation technical specification specifies the operation Limit and Condition (LCO) required by the national nuclear safety regulation (HAD103/01) and to be met by the power plant, including the safety limit, the setting value of the protection threshold, the normal operation limit and condition, and the measures taken when the availability requirement contained in the LCO is not met. Strict adherence to the technical guidelines set by the operating technical specification (TS for short) is the minimum technical rule that ensures the safety of the plant throughout its life.
In order to supervise a process system related to LCO, supervision items, supervision frequency, acceptance criteria and the like are specified in the supervision requirements of the safety-related system and equipment periodic tests, a nuclear power plant performs periodic tests according to the regulations of the supervision requirements, and when the tests do not meet the acceptance criteria, the tests can be theoretically divided into availability-related tests (U type, namely, the availability is influenced) and normal operation-related tests (N type, namely, the availability is not influenced, but the system function can be degraded) according to the influence on the availability requirements.
The existing usability test method is usually only used for a specific process system, is not suitable for different nuclear power plants and different process system devices, has the defects of low applicability, complex operation process and the like, and is not beneficial to the overall supervision of the process system of the nuclear power plant. Therefore, it is necessary to provide a database for guiding the availability of each nuclear power plant process system.
Disclosure of Invention
The invention provides a method for establishing a process system availability database, which can guide the establishment of the process system availability database of each nuclear power plant, and has the advantages of strong applicability, convenient operation and higher efficiency.
In order to achieve the above object, the present invention provides a method for establishing a database of process system availability, comprising:
determining test items of relevant process systems of each nuclear power plant;
determining a core function of the process system;
judging the type of the test item according to the influence condition of the test item on the core function, wherein the type of the test item comprises an availability related test U type and a normal operation related test N type;
and performing associated storage on the test items and the corresponding test item categories to obtain an availability database of the process system.
Optionally, before determining the test items of the process systems related to each nuclear power plant, the method further includes:
the test items of the process systems of the nuclear power plants are divided according to the equipment types, and the test items related to various equipment are combed so as to determine the test items of the relevant process systems of the nuclear power plants.
Optionally, the determining the core function of the process system specifically includes:
and determining the core function of the process system according to the relevant factors of the process system, wherein the relevant factors of the process system comprise characteristic factors and safety analysis factors of the process system.
Optionally, the core functions of the process system include at least fluid transport, heat exchange, radioactive shielding, and safety analysis requirements.
Optionally, after determining the core function of the process system, the method further includes:
subdividing the core function of the process system into a plurality of subfunctions according to a subfunction setting principle;
wherein the sub-function setting principle comprises:
when the subfunction is set, the subfunction corresponds to the related test item so as to ensure the completeness of the test item and the subfunction statistics;
dividing the core function corresponding to the test item into a plurality of minimum subfunctions which cannot be further subdivided; wherein the loss of any of the minimal subfunctions results in a loss of the corresponding core function;
if the related subfunctions contain special requirements, the subfunctions are listed separately.
Optionally, after the core function of the process system is subdivided into a plurality of subfunctions, the method further includes:
establishing a process system core subfunction list, wherein the list comprises a core function and each subfunction under the core function;
and sequencing the core functions in the core sub-function list and the corresponding sub-functions.
Optionally, the determining the category of the test item according to the influence of the test item on the core function includes:
if the corresponding core function of the process system is lost when the related test items are in abnormal states, judging the process system to be in a U type;
and if the relevant test items are in abnormal states, the relevant test items affect the corresponding core functions of the process system, but do not cause the loss of the core functions, and the test items are judged to be N types.
Optionally, after determining the test items of the relevant process systems of each nuclear power plant and the core functions of the process systems, the method further includes:
and if the influence conditions of the test items on the same core function of different process systems are different, dividing the corresponding test item categories for the different process systems.
Optionally, after obtaining the availability database of the process system, the method further includes:
detecting whether the test items and the corresponding test item categories in the process system availability database are complete or not;
and if the test items are not complete, adjusting the availability database of the process system until the test items in the availability database of the process system and the corresponding test item types are complete.
In order to achieve the above object, the present invention further provides a method for evaluating the availability of a process system, comprising: and evaluating the usability of the process system by using the usability database established based on the establishment method of the usability database of the process system.
Has the advantages that:
compared with the prior art, the method for establishing the process system availability database provided by the invention firstly determines the general test item list of the relevant process systems of the nuclear power plant, then determining the core function of the process system, finally carrying out the classification of the usability test U class and the normal operation test N class on the test items according to the influence condition of the test items on the core function, carrying out the associated storage on the test items and the corresponding test item classes, so as to establish a general availability database of the process system and the establishment method of the availability database provided by the invention, the integrity of the general test item list and the safety of the usability core function classification can be ensured, the establishment of a general usability database of each nuclear power plant can be guided, the method has the advantages of stronger applicability, simpler and more convenient operation process and higher efficiency, and is convenient for realizing the integral supervision of the nuclear power plant process system.
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FIG. 1 is a flow chart of a method for creating a database of process system availability according to an embodiment of the present invention;
FIG. 2 is a flowchart of a method for creating a database of process system availability according to a second embodiment of the present invention;
FIG. 3 is a flowchart of a method for creating a database of process system availability according to a third embodiment of the present invention;
FIG. 4 is a flowchart illustrating another method for creating a database of process system availability according to a third embodiment of the present invention;
fig. 5 is a flowchart of a method for evaluating usability of a process system according to a fourth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In order to solve the problems in the prior art, guide the establishment of the availability database of the process system of each nuclear power plant and improve the evaluation efficiency of the same availability of the process system, the embodiment of the invention provides an establishment method of the availability database of the process system and an evaluation method of the availability of the process system. The following are detailed by specific examples, respectively.
Referring to fig. 1, fig. 1 is a flowchart illustrating a method for creating a database of process system availability according to a first embodiment, including steps S101-S104:
step S101: determining a universal test project of the relevant process systems of each nuclear power plant;
each nuclear power plant process system generally includes a system for exchanging heat and supplying water by driving various fluids (water is a main medium), for example, a safety injection system (RIS), a containment spray system (EAS), an auxiliary water supply system (ASG), and the like. In order to supervise a process system related to LCO, supervision items, supervision frequency, acceptance criteria and the like are specified in the regular test supervision requirements of a safety-related system and equipment, for example, the supervision requirements of a main feed water flow regulation system are as shown in the following Table 1:
TABLE 1 Main feed Water flow regulating System supervision requirements
To build a universal availability database that can be used to guide various nuclear power plant process systems, the present embodiment first identifies universal, complete test projects for the relevant process systems. Optionally, before determining the test items of the process systems related to each nuclear power plant, the method further includes:
dividing the test items of the process system according to the equipment category, and carding the test items related to various equipment.
Before the work is carried out, related tests of a process system are firstly divided according to equipment categories, generally divided into a water tank, a pump, a motor, a valve, a pipeline, a heat exchanger and the like, and tests related to various equipment are combed in a full range to ensure the integrity of test items in a process system availability database. For example, the pump and motor test items are shown in table 2 below:
TABLE 2 statistics of periodic pump and motor test items
Step S102: determining a core function of the process system;
the availability requirement of the process system consists of core functions of a series of process systems, when a test item is tested, whether the core function corresponding to the test item loses the function is judged, and the availability requirement is not met under the condition that the core function loses, so that the availability of the process system is evaluated, and therefore the core function of the process system needs to be determined when a general availability database of the process system is established, wherein the determination of the core function of the process system specifically comprises the following steps:
and determining the core function of the process system according to the relevant factors of the process system, wherein the relevant factors of the process system comprise characteristic factors and safety analysis factors of the process system.
Specifically, the core functions of the process system include at least fluid transport, heat exchange, radioactive shielding, and safety analysis requirements.
According to the characteristics of the process system and the consideration of comprehensive factors such as safety analysis, the core functions of the process system mainly comprise the following steps:
1. fluid conveying: under the set working condition, conveying the specific medium to a target position in time;
2. heat exchange: cooling is established under set conditions to meet the requirements of flow and inlet and outlet temperature;
3. shielding the radioactive substance: according to the containment vessel isolation requirement, isolating the containment vessel within a specific time limit and ensuring reliable continuous sealing;
4. safety analysis requirements: including safety analysis assumptions such as nominal flow setup time, and other safety analysis requirements.
Optionally, after determining the core function of the process system, the method further includes:
subdividing the core function of the process system into a plurality of subfunctions according to a subfunction setting principle;
in this embodiment, the core function of the process system is determined, and the corresponding core sub-functions are specified according to the sub-function setting rule, for example, by setting a "loss of any minimum sub-function results in loss of the entire core function" rule, any sub-function does not satisfy the rule, i.e., is classified into a usability related test U class, i.e., affects usability, and is considered conservatively to ensure safety and inclusiveness of usability classification: according to a subfunction setting principle, a core function is split, the core function is split to a subfunction of a minimum unit (and indispensable), the subfunction corresponds to a specific test item, subsequent test classification is facilitated, classification of supervision tests is conducted by combining the test item of process system equipment and the core subfunction, a classification scheme is simple and clear, and the method is convenient to use and more instructive when different process systems are classified. Wherein the sub-function setting principle comprises:
when the subfunction is set, the subfunction corresponds to the related test item so as to ensure the completeness of the test item and the subfunction statistics;
dividing the core function corresponding to the test item into a plurality of minimum subfunctions which cannot be further subdivided;
wherein the loss of any of the minimal subfunctions results in the loss of the corresponding core function;
if the related subfunctions contain special requirements, the subfunctions are listed separately.
In the embodiment, each core function and each subfunction under the core function can be visually displayed by establishing the core subfunction list, so that subsequent test item classification is facilitated. Specifically, after the core function of the process system is subdivided into a plurality of subfunctions, the method further comprises the following steps:
establishing a process system core subfunction list, wherein the list comprises a core function and each subfunction under the core function;
and sequencing the core functions in the core sub-function list and the corresponding sub-functions.
The determined core function is shown in table 3 below, according to the above requirements:
TABLE 3 summary of core subfunctions of process equipment
Step S103: judging the type of the test item according to the influence condition of the test item on the core function;
the test item categories comprise an availability related test U category and a normal operation related test N category.
In this embodiment, after determining the test items and the core functions of the process system, the method for determining the types of the test items according to the test items and the influence on the core functions of the process system equipment includes:
if the corresponding core function of the process system is lost when the related test items are in abnormal states, judging the process system to be in a U type;
and if the test item is in an abnormal state, the test item influences the core function but does not cause the loss of the core function, and the test item is judged to be N-type.
Specifically, the abnormal test item will directly result in the loss of any function in table 3, and the test item category is U-type (i.e. affects availability);
the test item abnormality does not cause any function loss in table 3, and needs to be determined according to the influence on the core subfunction, if the result causes the core subfunction loss, the core subfunction is U-type, otherwise, the core subfunction is N-type (that is, the usability is not affected, but the system function may be degraded).
Taking the test classification of the pump as an example, a series of auxiliary support functions and monitoring parameters are needed for maintaining the operation of the pump, and aiming at a test item causing the shutdown of the pump, the test item is divided into U classes because the trigger function is 1.1.2; if part of test items are only early warning but do not directly cause the pump to stop running, any core subfunction cannot be triggered, and the test item categories are divided into N categories.
It should be noted that the classification of the test item categories should be fully considered, and for the same test item, the classification difference is caused by the difference of equipment suppliers and other factors; if the classification of some test items is difficult to directly judge, the test items are classified based on a conservative principle, namely, the test items are classified into U classes.
And S104, performing associated storage on the test items and the corresponding test item types to obtain an availability database of the process system.
According to the embodiment, the availability database of the process system is established according to the test items and the corresponding test item types, the test items and the corresponding test item types are obtained by performing associated storage, when each nuclear power plant performs periodic tests on the relevant process systems, the test item types of the process system can be quickly found according to the availability database, the applicability is higher, and the operation is simple. In an implementation manner of this embodiment, a data index function item may be added to the availability database, and through data indexing, the test item of this periodic test may be quickly found in the availability database, and when the test item is indexed, because the test item and the corresponding test item category are stored in association, secondary search of the test item category is not required, so as to achieve the purpose of efficiently analyzing the periodic test of the process system.
To better illustrate the classification of the above test item categories, this embodiment combines the statistics of the pump and motor test items in table 2 to classify the test categories of the pump and the motor:
various experiments were first analyzed: the small-flow hydraulic characteristic of the test 1 and the rated hydraulic characteristic of the test 3 are not met, which indicates that the pump performance cannot meet the flow supply requirement and corresponds to a core function of 1.1.1, so that the test type is U;
experiment 4, the abnormality of the motor current does not directly cause the loss of the core function, and the core function is N type (the requirement also depends on the requirement of a supplier of the equipment, if the supplier determines that the abnormality of the motor current of part of the equipment causes the equipment to be unavailable, the experiment is U type);
test 5 the pump/motor shutdown related parameters cause the pump to be incapable of providing rated flow, meet the requirements in 1.1.2 and are in U type;
experiment 6 the pump/motor early warning related parameters do not directly affect the flow, and are of type N.
Based on the above analysis, the pump and motor test categories are shown in Table 4 below.
TABLE 4 Pump and Motor test classes
*: and only the flow establishment time required in the accident analysis is of the U type, otherwise, the flow establishment time is of the N type.
**: if the supplier specifies that the abnormal current of the equipment motor causes the equipment to be out of operation (unavailable), the equipment is in a U type and corresponds to the core subfunction 1.1.2.
Similarly, the valve and heat exchanger test categories are shown in Table 6 below
Table 6 valve test categories:
| serial number | Test items | Core function | Categories |
| 1 | Valve action time (on, off) | 1.2、4.1 | |
| 2 | Closure logic for containment isolation valve | 4.1 | U |
| 3 | Valve stroke | - | N |
| 4 | Correct operation of the valve | 1.2、5 | U |
| 5 | Containment overall leakage rate (A type) | 4.2 | U |
| 6 | Third Barrier tightness check (class B) | 4.2 | U |
| 7 | Third Barrier tightness check (class C) | - | N* |
| 8 | Inspection of valve sealing surfaces | - | N** |
| 9 | Others | - | N |
*: depending on the total leak rate allowed, it is in class U if the total leak rate requirement is not met.
**: if negligible leakage, then class N, otherwise based on conservative considerations, class U, corresponding to core subfunction 1.2.
TABLE 7 Heat exchanger test classes
| Serial number | Test items | Core function | Categories |
| 1 | Heat converter (flow) | 2.1.2 | |
| 2 | Heat converter (Heat exchange coefficient) | 2.1.1 | U |
| 3 | Steam generator leak rate | 4.3 | U |
| 4 | Heat converter (leakage rate) | - | N |
| 5 | Heat converter (pressure drop, block monitor) | - | N |
| 6 | Others | - | N |
The method for establishing the availability database of the process system provided by this embodiment first determines the test items of the process systems related to the nuclear power plant, then determines the core functions of the process systems, and finally performs the classification of U-type availability tests and N-type normal operation tests on the test items according to the influence of the test items on the core functions, and establishes the general availability database of the process systems by performing the association storage on the test items and the corresponding test item classes. The classification of the test project categories is more convenient, the classification result is more accurate, the classification scheme is simple and clear, the classification method is convenient to use when different process systems are classified, and the guidance is stronger.
Referring to fig. 2, fig. 2 is a method for establishing a process system availability database provided in a second embodiment, where in this embodiment, for different influence situations of test items on core functions of different process systems, the process systems are classified, so that flexibility of classification of tests and rationality of classification are improved, and unnecessary operation burden can be effectively avoided, for example, when a U-class test is unavailable, a unit takes necessary limiting measures such as limited-period maintenance, power reduction, shutdown, and the like, and specifically, compared with the first embodiment, the method in this embodiment includes, in addition to steps S101 to S104 in the first embodiment, after step S102, before step S103, step S205:
steps S201 to S204 in this embodiment are the same as steps S101 to S104, respectively;
step S205: if the influence conditions of the test items on the same core function of different process systems are different, corresponding test item categories are divided for the different process systems
The judging the test item type according to the influence condition of the test item on the core function comprises the following steps: if the corresponding core function is lost when the test item is in an abnormal state, judging the test item to be a U-type;
and if the test item is in an abnormal state, the test item affects the core function but does not cause the loss of the core function, and the test item is judged to be N-type.
For example, if some important process systems involve safety analysis requirements (core subfunction 5), the corresponding test is of the U-class; some non-safety systems have no safety analysis requirement (no core subfunction 5), and the corresponding function of the corresponding test is N; or, different equipment suppliers have different requirements for the same function, and the corresponding test categories may also be different.
The method for establishing the process system availability database provided by the embodiment is used for classifying the process systems according to different influences of test items on core functions of different process systems, and the classification method is stronger in universality, flexible and convenient to adjust, is beneficial to mining unit operation potential, and improves unit operation flexibility.
Referring to fig. 3 and 4, fig. 3 is a flowchart of a method for establishing a process system availability database according to a third embodiment, and fig. 4 is a flowchart of another method for establishing a process system availability database, where in the present embodiment, after establishing a process system availability database, and when classifying specific test items, flexible adjustment is allowed according to influences on core functions to ensure integrity of the process system availability database, and specifically, compared with the first embodiment, the present embodiment includes steps S301 to S304 corresponding to steps S101 to S104 in the first embodiment, and after step S304, the present embodiment further includes steps S305 to S306:
step S305: detecting whether the test items and the corresponding test item categories in the process system availability database are complete or not;
step S306: and if the test items are not complete, adjusting the availability database of the process system until the test items in the availability database of the process system and the corresponding test item types are complete.
In this embodiment, after the availability database of the process system is established, the test items and the test item categories of the database are detected to ensure the integrity of the classification of the test items, for example, when the availability database of the process system is established, if the test item numbers are caused by system design improvement, equipment improvement, and the like, the database of the process system needs to be adjusted according to the original design flow to ensure the integrity of the classification of the test items and ensure the applicability of the availability database of the process system.
Referring to fig. 5, fig. 5 is a method for evaluating the usability of a process system according to a fourth embodiment, including step S401: and evaluating the usability of the process system by using the usability database established based on the establishment method of the usability database of the process system.
The method for evaluating the availability of the process system provided by the embodiment is based on the process system availability database provided by the first embodiment, the second embodiment, the third embodiment or other embodiments of the invention to evaluate the availability of the relevant process system of the nuclear power plant, and has the advantages of stronger applicability, simpler and more efficient operation process and more accurate test result.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A method for establishing a process system availability database is characterized by comprising the following steps:
determining test items of relevant process systems of each nuclear power plant;
determining a core function of the process system;
judging test item types according to the influence conditions of the test items on the core functions, wherein the test item types comprise an availability related test U type and a normal operation related test N type;
the test items and the corresponding test item categories are stored in an associated mode to obtain an availability database of the process system;
after the test items of the relevant process systems of each nuclear power plant and the core functions of the process systems are determined, the method further comprises the following steps:
if the influence conditions of the test items on the core functions of different process systems are different, dividing the corresponding test item categories for the different process systems;
the judging the test item type according to the influence condition of the test item on the core function comprises the following steps:
if the corresponding core function of the process system is lost when the related test items are in abnormal states, judging the process system to be in a U type;
and if the relevant test items are in abnormal states, the relevant test items affect the corresponding core functions of the process system, but do not cause the loss of the core functions, and the test items are judged to be N types.
2. The method of claim 1, prior to determining the test items for each of the nuclear power plant related process systems, further comprising:
the test items of the process systems of the nuclear power plants are divided according to the equipment types, and the test items related to various equipment are combed so as to determine the test items of the relevant process systems of the nuclear power plants.
3. The method according to claim 1, wherein the determining the core function of the process system is specifically:
and determining the core function of the process system according to the relevant factors of the process system, wherein the relevant factors of the process system comprise characteristic factors and safety analysis factors of the process system.
4. A method according to claim 1 or 3, wherein core functions of the process system include fluid transport, heat exchange, radioactive shielding and safety analysis requirements.
5. The method of claim 1, after determining the core functionality of the process system, further comprising:
subdividing the core function of the process system into a plurality of subfunctions according to a subfunction setting principle;
wherein the sub-function setting principle comprises:
when the subfunction is set, the subfunction corresponds to the related test item so as to ensure the completeness of the test item and the subfunction statistics;
dividing the core function corresponding to the test item into a plurality of sub-functions which cannot be further subdivided; wherein the loss of any one of the subfunctions results in a loss of the corresponding core function;
if the related subfunctions contain special requirements, the subfunctions are listed separately.
6. The method of claim 5, further comprising, after subdividing the core function of the process system into a plurality of subfunctions:
establishing a process system core subfunction list, wherein the list comprises a core function and each subfunction under the core function;
and sequencing the core functions in the core sub-function list and the corresponding sub-functions.
7. The method of claim 1, after obtaining the availability database of the process system, further comprising:
detecting whether the test items and the corresponding test item categories in the process system availability database are complete or not;
and if the test items are not complete, adjusting the availability database of the process system until the test items in the availability database of the process system and the corresponding test item types are complete.
8. A method for evaluating the usability of a process system is characterized by comprising the following steps: the availability database built based on the method of building a process system availability database as claimed in any one of claims 1 to 7, wherein the process system availability is evaluated.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208222A (en) * | 2011-03-29 | 2011-10-05 | 中广核工程有限公司 | Control method and system thereof of nuclear power plant operation |
| US8571911B1 (en) * | 2001-11-16 | 2013-10-29 | Westinghouse Electric Company Llc | Facility life management method |
| CN104915768A (en) * | 2015-06-02 | 2015-09-16 | 中科华核电技术研究院有限公司 | Method and system for diagnosing and responding and supporting nuclear power plant severe accident |
| CN110085340A (en) * | 2019-04-22 | 2019-08-02 | 中国核电工程有限公司 | A kind of nuclear power plant supports security function identification method when system is unavailable |
-
2019
- 2019-08-16 CN CN201910757826.5A patent/CN110533308B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8571911B1 (en) * | 2001-11-16 | 2013-10-29 | Westinghouse Electric Company Llc | Facility life management method |
| CN102208222A (en) * | 2011-03-29 | 2011-10-05 | 中广核工程有限公司 | Control method and system thereof of nuclear power plant operation |
| CN104915768A (en) * | 2015-06-02 | 2015-09-16 | 中科华核电技术研究院有限公司 | Method and system for diagnosing and responding and supporting nuclear power plant severe accident |
| CN110085340A (en) * | 2019-04-22 | 2019-08-02 | 中国核电工程有限公司 | A kind of nuclear power plant supports security function identification method when system is unavailable |
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