CN115359928A - High-temperature gas-cooled reactor shutdown depth determination method and device, electronic equipment and medium - Google Patents
High-temperature gas-cooled reactor shutdown depth determination method and device, electronic equipment and medium Download PDFInfo
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- CN115359928A CN115359928A CN202211048731.4A CN202211048731A CN115359928A CN 115359928 A CN115359928 A CN 115359928A CN 202211048731 A CN202211048731 A CN 202211048731A CN 115359928 A CN115359928 A CN 115359928A
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- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
- G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
- G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
- G21C7/12—Means for moving control elements to desired position
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- G—PHYSICS
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- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
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Abstract
The method comprises the steps of determining the corresponding relation between the shut-down working condition source range counting rate and the shut-down depth; responding to the corresponding relation, and building a data processing model of the source range counting rate and the shutdown depth; and calculating the shutdown depth according to the source range counting rate based on a data processing model. By the method, the reactor shutdown depth can be directly calculated according to the source range counting rate without strictly requiring specific states of a control rod, an absorption sphere, the reactor core temperature and the like, the accuracy of determining the shutdown depth is enhanced, the flexibility and the stability of the operation of the high-temperature gas-cooled reactor are effectively improved, and the safety and the reliability of the high-temperature gas-cooled reactor are further improved.
Description
Technical Field
The disclosure relates to the technical field of nuclear reactor engineering, and in particular relates to a method and a device for determining shutdown depth of a high-temperature gas-cooled reactor, electronic equipment and a medium.
Background
The technology of a modular High-Temperature gas cooled Reactor (HTR-PM) is the technology of a fourth generation nuclear Reactor. The HTR-PM reactor consists of spherical fuel elements, graphite and carbon brick components, and the core coolant is helium. The high-temperature helium supplies super-temperature steam to the steam turbine through the steam generator and does work, and the steam turbine drives the generator set to generate electricity.
In the related art, the shutdown depth of the core is generally determined by controlling parameters such as the core temperature, the control rods, and the positions of the absorption balls.
In this way, the specific states of the control rod, the absorption sphere and the core temperature are strictly required for determining the shutdown depth, so that the operation flexibility and stability of the high-temperature gas-cooled reactor are insufficient, and the safety and reliability of the high-temperature gas-cooled reactor are insufficient.
Disclosure of Invention
The present disclosure is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the present disclosure aims to provide a method, an apparatus, an electronic device and a medium for determining a shutdown depth of a high temperature gas cooled reactor, which do not strictly require specific states of a control rod, an absorption sphere, a reactor core temperature, and the like, can directly calculate the shutdown depth of the reactor through a source range counting rate, enhance the accuracy of determining the shutdown depth, effectively improve the flexibility and stability of the operation of the high temperature gas cooled reactor, and further improve the safety and reliability of the high temperature gas cooled reactor.
The method for determining the shutdown depth of the high-temperature gas cooled reactor provided by the embodiment of the first aspect of the disclosure comprises the following steps: determining the corresponding relation between the shutdown working condition source range counting rate and the shutdown depth; responding to the corresponding relation, and building a data processing model of the source range counting rate and the shutdown depth; and calculating the shutdown depth according to the source range counting rate based on a data processing model.
According to the method for determining the shutdown depth of the high-temperature gas-cooled reactor, the corresponding relation between the shutdown working condition source range counting rate and the shutdown depth is determined, then the corresponding relation is responded, a data processing model of the source range counting rate and the shutdown depth is built, then the shutdown depth is calculated according to the source range counting rate based on the data processing model, the specific states of a control rod, an absorption ball, the reactor core temperature and the like are not required to be strictly required, the reactor shutdown depth can be directly calculated through the source range counting rate, the accuracy of determining the shutdown depth is enhanced, the flexibility and the stability of the operation of the high-temperature gas-cooled reactor are effectively improved, and further the safety and the reliability of the high-temperature gas-cooled reactor are improved.
The shutdown depth determination device for the high-temperature gas cooled reactor provided by the embodiment of the second aspect of the disclosure comprises: the determining module is used for determining the corresponding relation between the shutdown working condition source range counting rate and the shutdown depth; the building module is used for responding to the corresponding relation and building a data processing model of the source range counting rate and the shutdown depth; and the calculating module is used for calculating the shutdown depth according to the source range counting rate based on the data processing model.
According to the high-temperature gas-cooled reactor shutdown depth determining device provided by the embodiment of the second aspect of the disclosure, the corresponding relation between the shutdown working condition source range counting rate and the shutdown depth is determined, then the corresponding relation is responded, a data processing model of the source range counting rate and the shutdown depth is built, then the shutdown depth is calculated according to the source range counting rate based on the data processing model, the specific states of a control rod, an absorption ball, the reactor core temperature and the like are not required strictly, the reactor shutdown depth can be directly calculated through the source range counting rate, the accuracy of determining the shutdown depth is enhanced, the flexibility and the stability of the operation of the high-temperature gas-cooled reactor are effectively improved, and further the safety and the reliability of the high-temperature gas-cooled reactor are improved.
According to a third aspect of the present disclosure, there is provided an electronic device comprising: at least one processor; and a memory communicatively coupled to the at least one processor; the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the method for determining the trip depth of the high temperature gas cooled reactor according to the embodiment of the first aspect of the disclosure.
According to a fourth aspect of the present disclosure, a non-transitory computer-readable storage medium is provided, storing computer instructions for causing a computer to execute the method for determining a shutdown depth of a high temperature gas cooled reactor of the first aspect of the present disclosure.
According to a fifth aspect of the present disclosure, there is provided a computer program product comprising a computer program which, when executed by a processor, implements the high temperature gas cooled reactor trip depth determination method of an embodiment of the first aspect of the present disclosure.
Additional aspects and advantages of the disclosure will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the disclosure.
Drawings
The above and/or additional aspects and advantages of the present disclosure will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic flow chart of a method for determining a trip depth of a high temperature gas cooled reactor according to an embodiment of the disclosure;
fig. 2 is a schematic structural diagram of a reactor vessel according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of an extrapolation to the inverse of the source-scale count rate according to an embodiment of the present disclosure;
FIG. 4 is a schematic flow chart of a method for determining shutdown depth of a high temperature gas cooled reactor according to another embodiment of the present disclosure;
fig. 5 is a schematic flow chart of a method for determining shutdown depth of a high temperature gas cooled reactor according to another embodiment of the present disclosure;
FIG. 6 is a high temperature gas cooled reactor charging criticality extrapolation actual graph according to another embodiment of the disclosure;
fig. 7 is a schematic structural diagram of a high temperature gas cooled reactor trip depth determining apparatus according to an embodiment of the disclosure;
fig. 8 is a schematic structural diagram of a shutdown depth determination apparatus for a high temperature gas cooled reactor according to another embodiment of the present disclosure;
FIG. 9 illustrates a block diagram of an exemplary electronic device suitable for use in implementing embodiments of the present disclosure.
Detailed Description
Reference will now be made in detail to the embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of illustrating the present disclosure and should not be construed as limiting the same. Rather, the embodiments of the disclosure include all changes, modifications and equivalents coming within the spirit and terms of the claims appended thereto.
Fig. 1 is a schematic flow chart of a method for determining a shutdown depth of a high temperature gas cooled reactor according to an embodiment of the present disclosure.
It should be noted that the main implementation body of the high temperature gas cooled reactor shutdown depth determining method of this embodiment is a high temperature gas cooled reactor shutdown depth determining apparatus, which may be implemented by software and/or hardware, and the apparatus may be configured in an electronic device, and the electronic device may include, but is not limited to, a terminal, a server, and the like.
As shown in fig. 1, the method for determining shutdown depth of high temperature gas cooled reactor includes:
s101: and determining the corresponding relation between the shutdown working condition source range counting rate and the shutdown depth.
The change condition of the neutron counting rate in the reactor under the shutdown working condition can be called as the source range counting rate.
Where the negative reactivity achieved by the reactor when all control poisons are placed in the core may be referred to as the trip depth.
In some embodiments of the present disclosure, as shown in fig. 2, fig. 2 is a schematic structural diagram of a reactor vessel proposed in an embodiment of the present disclosure, a neutron source is arranged at an edge of a high temperature gas-cooled reactor, a neutron detector is arranged in a concrete layer outside a reactor pressure vessel, and a leakage neutron response is monitored during a reactor loading process to determine a neutron flux of a core, so as to determine a source range count rate.
In some embodiments, the source range count rate may be determined according to the loading amount of the mixed fuel, or any other possible implementation manner may be used to determine the shutdown condition source range count rate, which is not limited herein.
In the embodiment of the disclosure, the initial charging critical state can be tracked, and the corresponding relation between the shutdown working condition source range counting rate and the shutdown depth is determined according to the tracking result.
Optionally, in the embodiment of the present disclosure, the corresponding relationship between the shutdown condition source-range counting rate and the shutdown depth may be determined by determining an effective multiplication coefficient that affects the reactor core reactivity, and building a data processing model according to the effective multiplication coefficient and by combining the source-range counting rate reciprocal normalization.
Wherein N is the total number of neutrons in the system; s 0 The neutron source intensity, namely the number of neutrons emitted by the neutron source per generation; k eff Effective multiplication factor; ρ is the shutdown depth.
The effective multiplication factor may be, for example, the number of fuel spheres in the reactor core, the positions of the control rods and the absorption spheres, the temperature of the reactor core, or the like.
In the embodiment of the present disclosure, as shown in fig. 3, fig. 3 is a schematic diagram of a reciprocal extrapolation curve of the source-range counting rate according to an embodiment of the present disclosure, where an abscissa is an effective multiplication coefficient and an ordinate is a reciprocal of the source-range counting rate, and it can be obtained from fig. 3 that when the effective multiplication coefficient approaches to 1, the reciprocal of the source-range counting rate approaches to 0, that is, the total number of neutrons approaches to an infinite increase.
Can derive that
Processing via the geometric series summation formula yields:
formula (3) can be arithmetically changed to obtain formula (2).
Therefore, in the process that the reactor approaches critical, if the reciprocal linearity of the source range counting rate meets the corresponding linearity requirement, the existence of the reactor can be calculated through the source range counting rateEfficient multiplication coefficient K eff And then the shutdown depth rho of the reactor can be obtained.
S102: and responding to the corresponding relation, and building a data processing model of the source range counting rate and the shutdown depth.
In the embodiment of the present disclosure, a data processing model of the source range counting rate and the shutdown depth may be established according to a corresponding relationship between the source range counting rate and the shutdown depth, where the data processing model may be a data operation model, or may also be a big data processing model, which is not limited to this.
In the embodiment of the present disclosure, a data processing model may be directly built according to the correspondence, or a plurality of data processing modes may be combined according to the correspondence, so as to generate a processing system of the source range count rate and the shutdown depth, and the processing system is used as the data processing model, or a plurality of other arbitrary possible implementation modes may be used to build a data processing model of the source range count rate and the shutdown depth, such as using a corresponding data set to perform data training, which is not limited.
After the data processing model is obtained, the shutdown depth can be obtained based on the data processing model, which can be specifically referred to in the following embodiments.
S103: and calculating the shutdown depth according to the source range counting rate based on a data processing model.
In the embodiment of the disclosure, the source range count rate can be input, and the shutdown depth corresponding to the source range count rate is obtained through calculation by the data processing model.
In the embodiment, the corresponding relation between the source range counting rate and the shutdown depth under the shutdown working condition is determined, then the corresponding relation is responded, a data processing model of the source range counting rate and the shutdown depth is built, then the shutdown depth is calculated according to the source range counting rate based on the data processing model, the specific states of a control rod, an absorption ball, the reactor core temperature and the like are not required strictly, the reactor shutdown depth can be calculated directly through the source range counting rate, the accuracy of determining the shutdown depth is enhanced, the flexibility and the stability of the high-temperature gas cooled reactor operation are effectively improved, and further the safety and the reliability of the high-temperature gas cooled reactor are improved.
Fig. 4 is a schematic flow chart of a method for determining a trip depth of a high temperature gas cooled reactor according to another embodiment of the present disclosure.
As shown in fig. 4, the method for determining shutdown depth of high temperature gas cooled reactor includes:
s401: and determining the corresponding relation between the shutdown working condition source range counting rate and the shutdown depth.
S402: and responding to the corresponding relation, and constructing a data processing model of the source range counting rate and the shutdown depth.
For specific description of S401 to S402, reference may be made to the above embodiments, which are not described herein again.
S403: and (4) correcting the intensity of the neutron source based on a data processing model of the shutdown depth.
The number of neutrons emitted by the neutron source per unit time may be referred to as the neutron source intensity.
It will be appreciated that the intensity of the neutron source is a constant parameter in the data processing model, but in practical cases, the intensity of the neutron source may change accordingly as the core operates, for example, the intensity of the neutron source changes due to decay of the neutron source, generation of neutrons due to burnup of the core, etc., so that the intensity of the neutron source can be corrected.
Optionally, in this embodiment of the present disclosure, the modification processing on the neutron source intensity may be to determine a reference trip depth and a reference source range count rate corresponding to the reference trip depth, where the reference trip depth is a trip depth in a critical state of the gas cooled reactor, determine an actual source range count rate, and modify the neutron source intensity based on the reference trip depth, the reference source range count rate, and the actual source range count rate.
ρ act ＝ρ ref *N ref /N act (4)
In the formula, ρ act Actual shutdown depth; rho ref Is prepared from radix GinsengChecking the pile stopping depth; n is a radical of hydrogen ref Is a reference source range count rate; n is a radical of act Is the actual source range count rate.
In the embodiment of the disclosure, in a critical state, a control rod with a known value is inserted downwards into the high-temperature gas cooled reactor, at this time, the reactor core shutdown depth is equal to the control rod value, the reactor shutdown depth is a reference reactor shutdown depth, and the source range count rate corresponding to the control rod with the known value inserted downwards in the critical state can be used as the reference source range count rate.
In the embodiment of the present disclosure, the reference shutdown depth and the reference source range count rate are known data information, and when the reactor is shutdown at a certain burnup length, the shutdown depth of the reactor in the critical state may be measured, and directly used as the reference shutdown depth, and the source range count rate of the reactor in the critical state may be measured, and directly used as the reference source range count rate, or the reference shutdown depth and the reference source range count rate may also be obtained from historical data, or multiple determination manners may also be used to determine the reference shutdown depth and the reference source range count rate, which is not limited herein.
In the embodiment of the disclosure, when the reference shutdown depth, the reference source range counting rate and the actual source range counting rate are known, the actual shutdown depth can be determined by directly performing operation processing, and the neutron source intensity is corrected according to the actual source range counting rate and the actual shutdown depth, so that the processing accuracy of the model is higher, and the reliability is better.
S404: and calculating the shutdown depth according to the source range counting rate based on a data processing model.
For a specific description of S404, reference may be made to the foregoing embodiments, which are not described herein again.
In the embodiment, the corresponding relation between the shutdown working condition source range counting rate and the shutdown depth is determined, then the corresponding relation is responded, a data processing model of the source range counting rate and the shutdown depth is built, then the shutdown depth is calculated according to the source range counting rate based on the data processing model, the specific states of a control rod, an absorption ball, the reactor core temperature and the like are not required strictly, the reactor shutdown depth can be calculated directly through the source range counting rate, the accuracy of determining the shutdown depth is enhanced, the flexibility and the stability of the operation of the high-temperature gas cooled reactor are effectively improved, and further the safety and the reliability of the high-temperature gas cooled reactor are improved. The neutron source intensity is corrected based on the reference shutdown depth, the reference source range counting rate and the actual source range counting rate, the actual shutdown depth is determined according to the reference shutdown depth, the reference source range counting rate and the actual source range counting rate, the neutron source intensity is corrected accordingly, the change of the neutron source intensity is effectively coped with, the error of data processing model operation caused by the neutron source intensity change is avoided, the accuracy of the neutron source intensity is guaranteed, and the accuracy of the shutdown depth operation is further guaranteed.
Fig. 5 is a schematic flow chart of a method for determining a trip depth of a high temperature gas cooled reactor according to another embodiment of the present disclosure.
As shown in fig. 5, the method for determining shutdown depth of high temperature gas cooled reactor includes:
s501: and determining the reactivity of the reactor core under the shutdown condition.
The physical quantities used to describe the reactor conditions, among others, may be referred to as core reactivity, which may be used to determine the source-scale count rate.
In the embodiment of the present disclosure, the factors that affect the reactor core reactivity mainly include the number of fuel spheres in the reactor core, the positions of the control rods and the absorption spheres, the temperature of the reactor core, and the like, that is, the factors that can affect the reactor core reactivity are various and complex, and therefore, the embodiment of the present disclosure introduces the effective multiplication coefficient to comprehensively embody the various factors that affect the reactor core reactivity.
In the disclosed embodiment, the reciprocal of the source range counting rate has a linear relation with the effective multiplication coefficient.
Alternatively, in some embodiments, the core reactivity may be determined based on the fuel load, and the core reactivity based on the fuel load.
The fuel loading capacity is the initial net reactor charge in the high-temperature gas cooled reactor, namely the value of the loaded fuel when the control rod and the absorption ball are on the top of the reactor and the air atmosphere is normal temperature.
For example, in the initial critical state of the high temperature gas cooled reactor, as shown in fig. 6, fig. 6 is a loading critical extrapolation actual graph of the high temperature gas cooled reactor proposed by another embodiment of the present disclosure, and the fuel loading is determined by determining the number of fuel spheres.
In the embodiment of the present disclosure, the fuel loading may be determined in various ways, for example, a fixed fuel loading may be set, or the fuel loading may also be determined from a corresponding history record, or a corresponding fuel loading detection device may also be configured, which is not limited to this.
In the embodiment of the present disclosure, after the fuel load is determined, the core reactivity may be determined based on the fuel load, that is, the core reactivity may be determined by determining the inverse of the source-range count rate according to the corresponding extrapolation curve in fig. 6, of course, the curve shown in fig. 6 is only an exemplary curve, and may be dynamically adjusted according to the actual production situation, which is not limited thereto.
Of course, in some embodiments, a processing system for the fuel load and the core reactivity may be constructed, so that the fuel load data is input based on the processing system, and the data information related to the core reactivity is output through the system processing.
In other embodiments, without limitation, the core reactivity may be determined based on fuel loading using any of a variety of other possible implementations.
S502: and determining the corresponding relation between the shutdown working condition source range counting rate and the shutdown depth based on the reactor core reactivity.
In the embodiment of the disclosure, after the effective multiplication coefficient is determined, the effective multiplication coefficient can be influenced by the changes of the number of the fuel spheres of the reactor core, the positions of the control rods and the absorption spheres, the temperature of the reactor core and the like, and then the shutdown depth corresponding to the change of the effective multiplication coefficient is determined. The linearity of the reciprocal of the counting rate of the source range and the effective multiplication coefficient is ensured to be in an effective range, and the effective range can be called as a reactivity determination applicable condition.
For example, as shown in fig. 6, taking the value of each fuel sphere as about 0.25pcm as a specific example, when the number of fuel spheres is 80000 to 100000, the linearity of the extrapolation curve is good, and the applicable condition for determining the reactivity may be set such that the number of fuel spheres satisfies more than 80000.
The disclosed embodiments support dynamic adjustment of the reactivity condition based on the actual situation.
In some embodiments of the present disclosure, when the reactor core reactivity satisfies the reactivity determination applicable condition, the inverse of the source-range counting rate under the shutdown condition can be directly determined according to the determined fuel loading amount, so as to determine the effective multiplication coefficient according to the source-range counting rate, and further determine the corresponding relationship between the source-range counting rate and the shutdown depth according to the effective multiplication coefficient.
S503: and responding to the corresponding relation, and building a data processing model of the source range counting rate and the shutdown depth.
S504: and calculating the shutdown depth according to the source range counting rate based on a data processing model.
For specific description of S503-S504, reference may be made to the above embodiments, which are not described herein again.
In the embodiment, the corresponding relation between the shutdown working condition source range counting rate and the shutdown depth is determined, then the corresponding relation is responded, a data processing model of the source range counting rate and the shutdown depth is built, then the shutdown depth is calculated according to the source range counting rate based on the data processing model, the specific states of a control rod, an absorption ball, the reactor core temperature and the like are not required strictly, the reactor shutdown depth can be calculated directly through the source range counting rate, the accuracy of determining the shutdown depth is enhanced, the flexibility and the stability of the operation of the high-temperature gas cooled reactor are effectively improved, and further the safety and the reliability of the high-temperature gas cooled reactor are improved. The corresponding relation between the shutdown working condition source range counting rate and the shutdown depth is determined, the accuracy of the corresponding relation between the shutdown working condition source range counting rate and the shutdown depth can be effectively guaranteed, and the accuracy of determining the shutdown depth is further improved.
Fig. 7 is a schematic structural diagram of a high temperature gas cooled reactor trip depth determining apparatus according to an embodiment of the disclosure.
As shown in fig. 7, the shutdown depth determination apparatus 70 for a high temperature gas cooled reactor includes:
the determining module 701 is used for determining the corresponding relation between the shutdown working condition source range counting rate and the shutdown depth;
a building module 702, configured to build a data processing model of the source range count rate and the shutdown depth in response to the correspondence;
and the calculating module 703 is configured to calculate a shutdown depth according to the source range count rate based on the data processing model.
In some embodiments of the present disclosure, as shown in fig. 8, fig. 8 is a schematic structural diagram of a high temperature gas cooled reactor shutdown depth determining apparatus according to another embodiment of the present disclosure, wherein the building module 702 is specifically configured to:
determining an effective multiplication coefficient affecting the reactivity of the reactor core;
and (4) building a data processing model by combining the source range counting rate reciprocal normalization according to the effective multiplication coefficient.
Wherein N is the total number of neutrons in the system; s 0 The neutron source intensity, namely the number of neutrons emitted by the neutron source per generation; k is eff Effective proliferation factor; ρ is the shutdown depth.
In some embodiments of the present disclosure, as shown in fig. 8, further comprising:
and the processing module 704 is used for correcting the neutron source intensity based on the data processing model of the shutdown depth after the data processing model is built by combining the effective multiplication coefficient and the source range counting rate reciprocal normalization.
In some embodiments of the present disclosure, as shown in fig. 8, the processing module 704 is specifically configured to:
determining a reference shutdown depth and a reference source range counting rate corresponding to the reference shutdown depth, wherein the reference shutdown depth is the shutdown depth of the gas cooled reactor in a critical state;
determining the actual shutdown depth;
and correcting the neutron source intensity based on the reference shutdown depth, the reference source range counting rate and the actual source range counting rate.
ρ act ＝ρ ref *N ref /N act
In the formula, ρ act The actual shutdown depth; ρ is a unit of a gradient ref Is a reference trip depth; n is a radical of hydrogen ref Is a reference source range count rate; n is a radical of act Is the actual source range count rate.
In some embodiments of the present disclosure, as shown in fig. 8, the determining module 701 is specifically configured to:
determining the reactor core reactivity under the shutdown working condition;
when the reactor core reactivity meets the reactivity condition, determining the corresponding relation between the shutdown working condition source range counting rate and the shutdown depth;
the core reactivity is repeatedly checked if the core reactivity does not satisfy the reactivity condition.
In some embodiments of the present disclosure, as shown in fig. 8, the determining module 701 is specifically configured to:
the fuel load is determined, and core reactivity is determined based on the fuel load.
Corresponding to the method for determining the shutdown depth of the high temperature gas cooled reactor provided in the embodiments of fig. 1 to 6, the present disclosure also provides a device for determining the shutdown depth of the high temperature gas cooled reactor, because the device for determining the shutdown depth of the high temperature gas cooled reactor provided in the embodiments of the present disclosure corresponds to the method for determining the shutdown depth of the high temperature gas cooled reactor provided in the embodiments of fig. 1 to 6, the implementation of the method for determining the shutdown depth of the high temperature gas cooled reactor provided in the embodiments of the present disclosure is also applicable to the device for determining the shutdown depth of the high temperature gas cooled reactor provided in the embodiments of the present disclosure, and will not be described in detail in the embodiments of the present disclosure.
In the embodiment, the corresponding relation between the shutdown working condition source range counting rate and the shutdown depth is determined, then the corresponding relation is responded, a data processing model of the source range counting rate and the shutdown depth is built, then the shutdown depth is calculated according to the source range counting rate based on the data processing model, the specific states of a control rod, an absorption ball, the reactor core temperature and the like are not required strictly, the reactor shutdown depth can be calculated directly through the source range counting rate, the accuracy of determining the shutdown depth is enhanced, the flexibility and the stability of the operation of the high-temperature gas cooled reactor are effectively improved, and further the safety and the reliability of the high-temperature gas cooled reactor are improved.
In order to achieve the above embodiments, the present disclosure also proposes a non-transitory computer readable storage medium, on which a computer program is stored, which when executed by a processor implements the high temperature gas cooled reactor trip depth determination method as proposed by the foregoing embodiments of the present disclosure.
In order to implement the above embodiments, the present disclosure also provides an electronic device, including: the system comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein when the processor executes the program, the method for determining the shutdown depth of the high temperature gas cooled reactor as proposed by the foregoing embodiments of the present disclosure is realized.
In order to implement the foregoing embodiments, the present disclosure further provides a computer program product, which when executed by an instruction processor in the computer program product, executes the method for determining the trip depth of the high temperature gas cooled reactor as proposed in the foregoing embodiments of the present disclosure.
FIG. 9 illustrates a block diagram of an exemplary electronic device suitable for use in implementing embodiments of the present disclosure. The electronic device 12 shown in fig. 9 is only an example and should not bring any limitation to the functions and the scope of use of the embodiments of the present disclosure.
As shown in fig. 9, electronic device 12 is embodied in the form of a general purpose computing device. The components of electronic device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 that couples various system components including the system memory 28 and the processing unit 16. Bus 18 represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures. By way of example, such architectures include, but are not limited to, industry Standard Architecture (ISA) bus, micro Channel Architecture (MAC) bus, enhanced ISA bus, video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus.
Although not shown in FIG. 9, a magnetic disk drive for reading from and writing to a removable nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable nonvolatile optical disk (e.g., a Compact disk Read Only Memory (CD-ROM), a Digital versatile disk Read Only Memory (DVD-ROM), or other optical media) may be provided. In these cases, each drive may be connected to bus 18 by one or more data media interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the disclosure.
A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 42 generally perform the functions and/or methodologies of the embodiments described in this disclosure.
The electronic device 12 may also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), one or more devices that enable a user to interact with the electronic device 12, and/or any device (e.g., network card, modem, etc.) that enables the electronic device 12 to communicate with one or more other computing devices. Such communication may be through an input/output (I/O) interface 22. Also, the electronic device 12 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public Network such as the Internet) via the Network adapter 20. As shown, the network adapter 20 communicates with other modules of the electronic device 12 via the bus 18. It should be understood that although not shown in the figures, other hardware and/or software modules may be used in conjunction with electronic device 12, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, to name a few.
The processing unit 16 executes programs stored in the system memory 28 to execute various functional applications and data processing, such as implementing the high temperature gas cooled reactor trip depth determination method mentioned in the foregoing embodiment.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
It should be noted that, in the description of the present disclosure, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present disclosure, the meaning of "a plurality" is two or more unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present disclosure includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present disclosure.
It should be understood that portions of the present disclosure may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried out in the method of implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and the program, when executed, includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present disclosure may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a separate product, may also be stored in a computer-readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure, and that changes, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present disclosure.
Claims (9)
1. A method for determining shutdown depth of a high-temperature gas-cooled reactor is characterized by comprising the following steps:
determining the corresponding relation between the shutdown working condition source range counting rate and the shutdown depth;
responding to the corresponding relation, and building a data processing model of the source range counting rate and the shutdown depth;
and calculating the shutdown depth according to the source range counting rate based on the data processing model.
2. The method of claim 1, wherein determining the trip condition source range count rate to trip depth correspondence comprises:
determining an effective multiplication coefficient affecting the reactivity of the reactor core;
and building the data processing model by combining the source range counting rate reciprocal normalization according to the effective multiplication coefficient.
Wherein N is the total number of neutrons in the system; s 0 The neutron source intensity, namely the number of neutrons emitted by the neutron source per generation; k is eff Effective multiplication factor; ρ is the shutdown depth.
3. The method of claim 2, wherein after said constructing said data processing model based on said effective multiplication factor in combination with source range count rate reciprocal normalization, further comprises:
and correcting the neutron source intensity based on the data processing model of the shutdown depth.
4. The method of claim 3, wherein the modifying the neutron source intensity comprises:
and determining a reference shutdown depth and a reference source range counting rate corresponding to the reference shutdown depth, wherein the reference shutdown depth is the known shutdown depth of the high-temperature gas cooled reactor.
Determining the actual shutdown depth;
and correcting the neutron source intensity based on the reference shutdown depth, the reference source range counting rate and the actual source range counting rate.
ρ act ＝ρ ref *N ref /N act
In the formula, ρ act The actual shutdown depth; rho ref Is the reference trip depth; n is a radical of ref Is the reference source range count rate; n is a radical of act Is the actual source range count rate.
5. The method of claim 1, wherein determining the trip condition source range count rate to trip depth correspondence comprises:
determining the reactor core reactivity under the shutdown condition;
and determining the corresponding relation between the shutdown working condition source range counting rate and the shutdown depth based on the reactor core reactivity.
6. A high temperature gas cooled reactor shutdown depth determination apparatus, the apparatus comprising:
the determining module is used for determining the corresponding relation between the shutdown working condition source range counting rate and the shutdown depth;
the building module is used for responding to the corresponding relation and building a data processing model of the source range counting rate and the shutdown depth;
and the calculation module is used for calculating the shutdown depth according to the source range counting rate based on the data processing model.
7. The device according to claim 6, characterized in that the building module is specifically configured to:
determining an effective multiplication coefficient influencing the reactivity of the reactor core;
and building the data processing model by combining the source range counting rate reciprocal normalization according to the effective multiplication coefficient.
Wherein N is the total number of neutrons in the system; s. the 0 The neutron source intensity, namely the number of neutrons emitted by the neutron source per generation; k eff Effective multiplication factor; ρ is the shutdown depth.
8. An electronic device, comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the high temperature gas cooled reactor trip depth determination method of any one of claims 1-5.
9. A non-transitory computer readable storage medium having stored thereon computer instructions for causing the computer to execute the high temperature gas cooled reactor trip depth determination method of any one of claims 1-5.
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