CN113884262B - Nuclear power plant instrument control cabinet anti-seismic performance verification method and device - Google Patents
Nuclear power plant instrument control cabinet anti-seismic performance verification method and device Download PDFInfo
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- CN113884262B CN113884262B CN202111148967.0A CN202111148967A CN113884262B CN 113884262 B CN113884262 B CN 113884262B CN 202111148967 A CN202111148967 A CN 202111148967A CN 113884262 B CN113884262 B CN 113884262B
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000012795 verification Methods 0.000 title claims abstract description 27
- 238000012360 testing method Methods 0.000 claims abstract description 88
- 238000013461 design Methods 0.000 claims description 23
- 238000009826 distribution Methods 0.000 claims description 12
- 238000005516 engineering process Methods 0.000 claims description 9
- 238000004088 simulation Methods 0.000 claims description 9
- 230000035939 shock Effects 0.000 claims description 7
- 238000004458 analytical method Methods 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004422 calculation algorithm Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004379 similarity theory Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H13/00—Measuring resonant frequency
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/022—Vibration control arrangements, e.g. for generating random vibrations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The invention provides a nuclear power plant instrument control cabinet anti-seismic performance verification method and device, in the scheme, a plurality of anti-seismic test prototypes can be established in advance according to the type of a cabinet to be tested, anti-seismic performance parameters and natural frequencies of the anti-seismic test prototypes are determined, and when the anti-seismic performance parameters of the cabinet to be tested are measured, the anti-seismic performance parameters of the anti-seismic test prototypes matched with the natural frequencies of the cabinet to be tested are only required to be used as the anti-seismic performance parameters of the cabinet to be tested. The quick determination of the earthquake resistance parameters of the cabinet to be tested is realized.
Description
Technical Field
The invention relates to the technical field of electrical equipment, in particular to a method and a device for verifying the vibration performance of a nuclear power plant instrument control cabinet based on a finite element simulation technology.
Background
In a nuclear power plant, control cabinets with various types are provided, and control objects of the control cabinets with different types may be different, so that the earthquake resistance requirements are different, and earthquake resistance tests need to be respectively executed on cabinet structures with different types and types to verify whether the earthquake resistance performance meets the requirements.
In the prior art, when the shock resistance of the cabinet is verified, the shock resistance of each type of control cabinet is usually verified by keeping the control cabinet to work for a long time under different working conditions.
The applicant finds that the verification mode in the prior art has the problems of long verification period, low efficiency and high cost.
Disclosure of Invention
In view of the above, the embodiment of the invention provides a method and a device for verifying the anti-seismic performance of a nuclear power plant instrument control cabinet, so as to realize the rapid calibration of the anti-seismic performance of the cabinet to be tested.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
a nuclear power plant instrument control cabinet anti-seismic performance verification method comprises the following steps:
acquiring a cabinet identification set, wherein the cabinet identification set comprises cabinet identifications of all cabinets contained in a nuclear power plant;
acquiring a design structure of a cabinet corresponding to the cabinet identifier, and classifying the cabinet corresponding to the cabinet identifier based on a frame structure and an in-cabinet accessory structure;
according to the design principle comprising all types of the frame structures and the in-cabinet accessory structures, based on the frame structures and the in-cabinet accessory structures, the combination design is carried out again, and a plurality of typical earthquake resistance test prototypes with the smallest scale are obtained;
acquiring the natural frequency of each anti-seismic test prototype;
obtaining the earthquake resistance parameters of the designed earthquake resistance test prototype;
acquiring the natural frequency of a cabinet to be tested;
acquiring an earthquake-proof test prototype matched with the natural frequency of the cabinet to be tested, and marking the earthquake-proof test prototype as a target prototype;
and acquiring the earthquake resistance parameter of the target prototype as the earthquake resistance parameter of the cabinet to be tested.
Optionally, in the method for verifying the anti-seismic performance of the instrument control cabinet of the nuclear power plant, the accessory structure in the cabinet at least includes:
a horizontal mounting backboard, a vertical module mounting auxiliary, a tray, a drawing equipment auxiliary and a column auxiliary;
the frame structure comprises at least: a cabinet top 4 fan unit structure and a cabinet top 2 fan unit structure.
Optionally, in the method for verifying the anti-seismic performance of a nuclear power plant instrument control cabinet, cabinet identifications in the cabinet identification set at least include:
FCS cabinet identification, server cabinet identification, network cabinet identification, gateway cabinet identification, power distribution cabinet identification, and relay cabinet identification.
Optionally, in the method for verifying the anti-seismic performance of a nuclear power plant instrument control cabinet, the acquiring the natural frequency of each anti-seismic test prototype includes:
and calculating the natural frequency of each anti-seismic test prototype by adopting a finite element simulation technology.
Optionally, in the method for verifying the anti-seismic performance of a nuclear power plant instrument control cabinet, the obtaining an anti-seismic test prototype matched with the natural frequency of the cabinet to be tested, denoted as a target prototype, includes:
acquiring the earthquake resistance test prototype, wherein the difference value between the earthquake resistance test prototype and the natural frequency of the test cabinet is within a preset range, and marking the earthquake resistance test prototype as a target prototype;
the step of obtaining the earthquake resistance parameter of the target prototype as the earthquake resistance parameter of the cabinet to be tested comprises the following steps:
and acquiring the average earthquake resistance parameter of the target prototype as the earthquake resistance parameter of the cabinet to be tested.
A nuclear power plant instrument control cabinet anti-seismic performance verification device, comprising:
the classifying unit is used for acquiring a cabinet identification set, wherein the cabinet identification set comprises cabinet identifications of all cabinets contained in the nuclear power plant; acquiring a design structure of a cabinet corresponding to the cabinet identifier, and classifying the cabinet corresponding to the cabinet identifier based on a frame structure and an in-cabinet accessory structure;
the prototype configuration unit is used for obtaining a plurality of minimum-scale typical anti-seismic test prototypes based on the frame structure and the in-cabinet accessory structure recombined design according to the design principle comprising all types of the frame structure and the in-cabinet accessory structure;
the anti-seismic parameter calculation unit is used for obtaining the natural frequency of each anti-seismic test prototype; obtaining the earthquake resistance parameters of the designed earthquake resistance test prototype;
the vibration-resistant parameter analysis unit of the to-be-detected cabinet is used for acquiring the natural frequency of the to-be-detected cabinet; acquiring an earthquake-proof test prototype matched with the natural frequency of the cabinet to be tested, and marking the earthquake-proof test prototype as a target prototype; and acquiring the earthquake resistance parameter of the target prototype as the earthquake resistance parameter of the cabinet to be tested.
Optionally, in the nuclear power plant instrument control cabinet anti-seismic performance verification apparatus, the cabinet accessory structure at least includes:
a horizontal mounting backboard, a vertical module mounting auxiliary, a tray, a drawing equipment auxiliary and a column auxiliary;
the frame structure comprises at least: a cabinet top 4 fan unit structure and a cabinet top 2 fan unit structure.
Optionally, in the nuclear power plant instrument control cabinet anti-seismic performance verification device, cabinet identifications in the cabinet identification set at least include:
FCS cabinet identification, server cabinet identification, network cabinet identification, gateway cabinet identification, power distribution cabinet identification, and relay cabinet identification.
Optionally, in the above-mentioned nuclear power plant instrument control cabinet anti-seismic performance verification apparatus, the acquiring the natural frequency of each anti-seismic test prototype includes:
and calculating the natural frequency of each anti-seismic test prototype by adopting a finite element simulation technology.
Optionally, in the above-mentioned nuclear power plant instrument control cabinet anti-seismic performance verification device, the obtaining and the anti-seismic test prototype matched with the natural frequency of the cabinet to be tested, marked as a target prototype, includes:
acquiring the earthquake resistance test prototype, wherein the difference value between the earthquake resistance test prototype and the natural frequency of the test cabinet is within a preset range, and marking the earthquake resistance test prototype as a target prototype;
the step of obtaining the earthquake resistance parameter of the target prototype as the earthquake resistance parameter of the cabinet to be tested comprises the following steps:
and acquiring the average earthquake resistance parameter of the target prototype as the earthquake resistance parameter of the cabinet to be tested.
Based on the above technical scheme, in the above scheme provided by the embodiment of the invention, a plurality of anti-seismic test prototypes can be pre-established for the type of the cabinet to be tested, and the anti-seismic performance parameters and the natural frequency of the anti-seismic test prototypes are determined, and when the anti-seismic performance parameters of the cabinet to be tested are measured, the anti-seismic performance parameters of the anti-seismic test prototypes matched with the natural frequency of the cabinet to be tested are only required to be used as the anti-seismic performance parameters of the cabinet to be tested. The quick determination of the earthquake resistance parameters of the cabinet to be tested is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a method for verifying anti-seismic performance of a nuclear power plant instrument control cabinet according to an embodiment of the present application;
FIGS. 2-8 are schematic structural views of different types of cabinet frames;
FIG. 9 is a schematic flow diagram of the splitting and reassembling of cabinets as disclosed in embodiments of the present application;
fig. 10 is a schematic structural diagram of an earthquake-resistant performance verification device for a nuclear power plant instrument control cabinet in an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Aiming at the determination of the shock resistance verification of the cabinet in the nuclear power plant in the prior art, the application provides a design method of a typical prototype of the instrument control cabinet structure of the nuclear power plant, and one or more typical prototypes are obtained through a scientific design method aiming at cabinets with various types, so that the shock resistance test conclusion can be realized only by aiming at the typical prototypes, and the shock resistance test conclusion is applicable to cabinets with all types and types without carrying out shock resistance test verification on the cabinet structure with each type and type.
In the scheme, when the typical prototype is designed, cabinet structures of different types and types can be split into cabinet frame structures of different types and cabinet interior auxiliary structures, then the cabinet frame structures of different types and the cabinet interior auxiliary structures are recombined according to a certain principle (the principle of mechanical structure representativeness, representativeness including sub-equipment or devices, representativeness of interfaces and connections and the like) to generate a small number of cabinet prototypes with representativeness, and then the similarity theory is utilized, and the dynamic similarity of the typical cabinet prototypes with cabinets of different types and types is proved through a finite element simulation technology, so that the conclusion that the earthquake test result has universality is obtained.
Specifically, the method for verifying the anti-seismic performance of the instrument control cabinet of the nuclear power plant disclosed by the embodiment of the application can comprise steps S101-S106.
Step S101: and acquiring a cabinet identification set, wherein the cabinet identification set comprises cabinet identifications of all cabinets contained in the nuclear power plant.
In the technical solution disclosed in this embodiment, cabinet identifiers of cabinets of various other models of the same type as the detected cabinet are provided in the cabinet identifier set, and the cabinet identifiers in the cabinet identifier set may be added or subtracted based on the user requirement, for example, in the technical solution disclosed in this embodiment, referring to table 1, the cabinet corresponding to the cabinet identifier in the cabinet identifier set may include:
TABLE 1
| Sequence number | Name of the name |
| 1. | FCS cabinet |
| 2. | Server cabinet |
| 3. | Network cabinet |
| 4. | Gateway cabinet |
| 5. | Power distribution cabinet I |
| 6. | Power distribution cabinet II |
| 7. | Relay cabinet |
| 8. | FCS cabinet (KDA) |
| 9. | Gateway cabinet (KDA) |
Step S102: and acquiring the design structure of the cabinet corresponding to the cabinet identifier, splitting the design structure of the cabinet corresponding to the cabinet identifier, and classifying the splitting result according to the forms of the frame structure and the in-cabinet accessory structure.
For example, in this scenario, the classification is by cabinet frame structure, see table 2: cabinets in a nuclear power plant may include two types of cabinets.
TABLE 2
Referring to fig. 2 and 3, fig. 2 and 3 are schematic structural views of the structure of the fan unit of the cabinet top 4.
Referring to fig. 4 and 5, fig. 4 and 5 are schematic structural views of the structure of the fan unit of the cabinet top 2.
Because of the large variety of accessories in the cabinet. Referring to fig. 6, 7 and 8, the method can be divided into six kinds of horizontal installation back plates, vertical module installation auxiliary parts, trays, drawing equipment auxiliary parts, column auxiliary parts and general purpose parts.
The cabinet is characterized in that the thickness, the width and other dimensions of the transversely installed back plate for all cabinets are the same, and the heights are different due to different types of guide rails and modules installed by the back plate. The construction of which typically selects back plates with selectable heights of extreme dimensions (maximum and minimum) to cover a range of intermediate dimensions of the type of accessory.
For the vertical module installation auxiliaries, such auxiliaries only relate to FCS cabinets (KDA) and FCS cabinets, and there is a difference in the vertical module installation auxiliaries within the two cabinets. The structure is typically selected to include an FCS cabinet (KDA) and FCS cabinet vertical module mounting aids.
For tray-like accessories, the accessories only relate to a server cabinet, a gateway cabinet (KDA) and a network cabinet, and have the same structure. The structure is typically selected with reference to its mounting apparatus weight and mounting location, the higher weight and location being selected to cover the same type of tray-like accessory.
For drawing equipment accessories, such accessories only relate to a power distribution cabinet II, a gateway cabinet (KDA) and a network cabinet. The construction is typically chosen with reference to its installation weight and installation position, the higher weight and position being chosen to cover the drawing equipment accessory type.
For the column auxiliaries, there are approximately 3 types of column auxiliaries in the nuclear power plant, I-type column, II-type column and IV-type column, respectively. The I-type stand column only relates to an FCS cabinet (KDA) and an FCS cabinet, the II-type stand column only relates to a server cabinet, a gateway cabinet (KDA) and a network cabinet, and the IV-type stand column relates to a relay cabinet, a Level1 power distribution cabinet, a Level2 power distribution cabinet and a gateway cabinet. The structure is typically selected to cover all of the column auxiliaries.
For general auxiliary parts, including guide rail, metal wiring groove, cable wiring groove, binding frame, shielding ground busbar etc., such auxiliary parts basically relate to all racks, and the structure is comparatively general. The structure is typically selected to include all kinds of general auxiliary parts, and the number of the general auxiliary parts is not required.
Step S103: according to the design principle of all types of cabinet frame structures and cabinet accessory structures, based on the frame structures and the cabinet accessory structures, a plurality of typical earthquake resistance test prototypes with minimum scale are obtained.
In this scheme, the design principle of antidetonation experiment prototype includes:
mechanical structure representation: the test prototypes and their configurations should have similar dynamic structural characteristics as the device being authenticated.
Representative of the sub-devices or means: the equipment prototype should contain various sub-equipment or devices in the represented authenticated equipment, and their installation positions should take into account the positions in the actual equipment.
Representative of interfaces and connections: the interface comprises fixing and connecting the equipment prototype and the civil structure, connecting pipes of the equipment, electric connection of the equipment, cables and the like, and the equipment prototype and the civil structure are the same as or similar to the actual equipment as far as possible.
In the step, according to the method comprising all types of cabinet frame structures and cabinet accessory structures, the split cabinet frame structures and cabinet accessory structures are recombined and designed to form a typical earthquake-proof test prototype with the smallest scale. The splitting method and the recombination design method are shown in fig. 9.
The FCS cabinet, the server cabinet, the network cabinet, the gateway cabinet, the power distribution cabinet I, the power distribution cabinet II, the relay cabinet, the FCS cabinet (KDA) and the gateway cabinet (KDA) are divided according to the type of cabinet frame structures and the structures of accessories in the cabinet to obtain a test sample machine 1, a test sample machine 2 and a test sample machine 3, the specific compositions of the test sample machine 1, the test sample machine 2 and the test sample machine 3 can be shown in a figure 5, and the test sample machine 1 selects an empty cabinet with a cabinet top 4 fan unit structure to be matched with auxiliary equipment such as a horizontally installed backboard, a vertically installed auxiliary, an I-shaped stand column, a general type and the like and a counterweight. The test prototype 2 selects an empty cabinet with a cabinet top 2 fan unit structure and is matched with auxiliary equipment such as a transversely installed backboard, drawing equipment auxiliary equipment, a II-type upright post, a general type auxiliary equipment and a counterweight. The test prototype 3 selects an empty cabinet with a cabinet top 2 fan unit structure and is matched with auxiliary equipment such as a transversely installed backboard, drawing equipment auxiliary equipment, IV type stand column general equipment and the like and a counterweight.
Step S104: and acquiring the natural frequency of each earthquake resistance test prototype.
The similarity of devices must be made to one device assembly and device, component, depending on the structure of the new device being identified. For a complete assembly, similarity can be demonstrated by comparison of manufacturing, style and serial number, and by dynamic characteristics and structural considerations. Since the final goal identified by the similarity method includes consideration of the expected dynamic response, the similarity of the dynamic structural characteristics can be confirmed by detection of the structural parameters of the device system in a reasonable way, which can be achieved by comparing the dominant resonant frequencies. In general, the method of finite element analysis is a method that has proven effective by theory and practice. The dynamics are determined by parameters such as:
the structural dimensions of the device;
the weight of the device, its weight distribution and the position of the center of gravity;
the transmission characteristics of the load of the equipment structure and the rigidity of the vibration-resistant excitation;
the anchoring strength of the foundation of the device and the rigidity of ensuring structural integrity and proper boundary conditions;
the interface of the device with adjacent items or with connection accessories, such as cables and pipes.
The degree of difference or dissimilarity of all of the above structural parameters must be limited to a limit that ensures proper similarity between the device components. Structural similarity can be measured by structural dynamics. The dynamic characteristic of the structure is a basic physical quantity representing the dynamic characteristic of the structure, generally referred to as the natural frequency of the structure, and the natural frequency of the cabinet structure can be accurately calculated through a finite element simulation technology. And comparing the differences of the natural frequencies of the typical prototype and all types of cabinets to be identified, and judging that the test prototype has similarity with all types of cabinets to be identified if the differences of the natural frequencies are within a preset range.
Therefore, in the step, the natural frequency of the earthquake-proof test prototype needs to be calculated first, and the natural frequency of each earthquake-proof test prototype can be calculated by adopting a finite element simulation technology.
Step S105: and acquiring the natural frequency of the cabinet to be tested.
In this step, the natural frequency of the cabinet to be tested can be obtained by adopting finite element simulation technology.
Step S106: and acquiring an earthquake-proof test prototype matched with the natural frequency of the to-be-tested cabinet, and marking the earthquake-proof test prototype as a target prototype.
In this step, the natural frequency of each anti-seismic testing prototype is compared with the natural frequency of the cabinet to be tested, and the anti-seismic testing prototype whose difference value from the natural frequency of the cabinet to be tested is within a preset range (for example, may be 10%) is determined.
For example, referring to table 3, table 3 shows the matching results of the natural frequencies of the cabinet and the test prototype shown in table 1.
TABLE 3 Table 3
Step S107: and acquiring the earthquake resistance parameter of the target prototype as the earthquake resistance parameter of the cabinet to be tested.
And after the target prototype is determined, taking the earthquake resistance parameter of the target prototype as the earthquake resistance parameter of the to-be-detected cabinet.
In the above scheme disclosed in the embodiment of the present application, a plurality of earthquake-proof test prototypes may be pre-established for the type of the cabinet to be tested, and the earthquake-proof performance parameters and the natural frequencies of these earthquake-proof test prototypes are determined, and when the earthquake-proof performance parameters of the cabinet to be tested are measured, only the earthquake-proof performance parameters of the earthquake-proof test prototypes matched with the natural frequencies of the cabinet to be tested are required to be used as the earthquake-proof performance parameters of the cabinet to be tested. The quick determination of the earthquake resistance parameters of the cabinet to be tested is realized.
Corresponding to the above-mentioned nuclear power plant instrument control cabinet anti-seismic performance verification method, the present embodiment discloses a nuclear power plant instrument control cabinet anti-seismic performance verification device, and in this embodiment, specific working contents of each unit in the nuclear power plant instrument control cabinet anti-seismic performance verification device are referred to in the above-mentioned method embodiment.
The anti-seismic performance verification device of the instrument control cabinet of the nuclear power plant provided by the embodiment of the invention is described below, and the anti-seismic performance verification device of the instrument control cabinet of the nuclear power plant described below and the anti-seismic performance verification method of the instrument control cabinet of the nuclear power plant described above can be correspondingly referred to each other.
Referring to fig. 10, the application discloses a nuclear power plant instrument control cabinet anti-seismic performance verification device, which may include: the system comprises a classification unit 100, a prototype configuration unit 200, an earthquake-proof parameter calculation unit 300 and a cabinet earthquake-proof parameter analysis unit 400 to be tested.
The classification unit 100 is configured to obtain a cabinet identifier set, where the cabinet identifier set includes cabinet identifiers of all cabinets included in the nuclear power plant; acquiring a design structure of a cabinet corresponding to the cabinet identifier, and classifying the cabinet corresponding to the cabinet identifier based on a frame structure and an in-cabinet accessory structure;
a prototype configuration unit 200, configured to obtain a plurality of typical seismic test prototypes with minimum scale according to a design principle including all types of the frame structure and the in-cabinet accessory structure based on the frame structure and the in-cabinet accessory structure in a recombination design;
the anti-seismic parameter calculation unit 300 is used for obtaining the natural frequency of each anti-seismic test prototype; obtaining the earthquake resistance parameters of the designed earthquake resistance test prototype;
the to-be-tested cabinet anti-vibration parameter analysis unit 400 is used for acquiring the natural frequency of the to-be-tested cabinet; acquiring an earthquake-proof test prototype matched with the natural frequency of the cabinet to be tested, and marking the earthquake-proof test prototype as a target prototype; and acquiring the earthquake resistance parameter of the target prototype as the earthquake resistance parameter of the cabinet to be tested.
Specific implementations of the classification unit 100, the prototype configuration unit 200, the anti-seismic parameter calculation unit 300, and the to-be-tested cabinet anti-seismic parameter analysis unit 400 disclosed in the embodiments of the present application may be described with reference to the above method embodiments, and are not described here in detail.
For convenience of description, the above system is described as being functionally divided into various modules, respectively. Of course, the functions of each module may be implemented in the same piece or pieces of software and/or hardware when implementing the present invention.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for a system or system embodiment, since it is substantially similar to a method embodiment, the description is relatively simple, with reference to the description of the method embodiment being made in part. The systems and system embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative elements and steps are described above generally in terms of functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. The software modules may be disposed in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
It is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The method for verifying the earthquake resistance of the instrument control cabinet of the nuclear power plant is characterized by comprising the following steps of:
acquiring a cabinet identification set, wherein the cabinet identification set comprises cabinet identifications of all cabinets contained in a nuclear power plant;
acquiring a design structure of a cabinet corresponding to the cabinet identifier, and classifying the cabinet corresponding to the cabinet identifier based on a frame structure and an in-cabinet accessory structure;
according to the design principle comprising all types of the frame structures and the in-cabinet accessory structures, based on the frame structures and the in-cabinet accessory structures, the combination design is carried out again, and a plurality of typical earthquake resistance test prototypes with the smallest scale are obtained;
acquiring the natural frequency of each anti-seismic test prototype;
obtaining the earthquake resistance parameters of the designed earthquake resistance test prototype;
acquiring the natural frequency of a cabinet to be tested;
acquiring an earthquake-proof test prototype matched with the natural frequency of the cabinet to be tested, and marking the earthquake-proof test prototype as a target prototype;
and acquiring the earthquake resistance parameter of the target prototype as the earthquake resistance parameter of the cabinet to be tested.
2. The nuclear power plant instrument control cabinet anti-seismic performance verification method according to claim 1, wherein the in-cabinet accessory structure at least comprises:
a horizontal mounting backboard, a vertical module mounting auxiliary, a tray, a drawing equipment auxiliary and a column auxiliary;
the frame structure comprises at least: a cabinet top 4 fan unit structure and a cabinet top 2 fan unit structure.
3. The nuclear power plant instrument control cabinet anti-seismic performance verification method according to claim 1, wherein cabinet identifications in the cabinet identification set at least comprise:
FCS cabinet identification, server cabinet identification, network cabinet identification, gateway cabinet identification, power distribution cabinet identification, and relay cabinet identification.
4. The method for verifying the anti-seismic performance of a nuclear power plant instrument control cabinet according to claim 1, wherein the step of obtaining the natural frequency of each anti-seismic test prototype comprises the steps of:
and calculating the natural frequency of each anti-seismic test prototype by adopting a finite element simulation technology.
5. The method for verifying the earthquake-resistant performance of a nuclear power plant instrument control cabinet according to claim 1, wherein the step of obtaining an earthquake-resistant test prototype matched with the natural frequency of the cabinet to be tested, denoted as a target prototype, comprises the steps of:
acquiring the earthquake resistance test prototype, wherein the difference value between the earthquake resistance test prototype and the natural frequency of the test cabinet is within a preset range, and marking the earthquake resistance test prototype as a target prototype;
the step of obtaining the earthquake resistance parameter of the target prototype as the earthquake resistance parameter of the cabinet to be tested comprises the following steps:
and acquiring the average earthquake resistance parameter of the target prototype as the earthquake resistance parameter of the cabinet to be tested.
6. The utility model provides a nuclear power plant instrument accuse rack shock resistance verifying attachment which characterized in that includes:
the classifying unit is used for acquiring a cabinet identification set, wherein the cabinet identification set comprises cabinet identifications of all cabinets contained in the nuclear power plant; acquiring a design structure of a cabinet corresponding to the cabinet identifier, and classifying the cabinet corresponding to the cabinet identifier based on a frame structure and an in-cabinet accessory structure;
the prototype configuration unit is used for obtaining a plurality of minimum-scale typical anti-seismic test prototypes based on the frame structure and the in-cabinet accessory structure recombined design according to the design principle comprising all types of the frame structure and the in-cabinet accessory structure;
the anti-seismic parameter calculation unit is used for obtaining the natural frequency of each anti-seismic test prototype; obtaining the earthquake resistance parameters of the designed earthquake resistance test prototype;
the vibration-resistant parameter analysis unit of the to-be-detected cabinet is used for acquiring the natural frequency of the to-be-detected cabinet; acquiring an earthquake-proof test prototype matched with the natural frequency of the cabinet to be tested, and marking the earthquake-proof test prototype as a target prototype; and acquiring the earthquake resistance parameter of the target prototype as the earthquake resistance parameter of the cabinet to be tested.
7. The nuclear power plant instrument control cabinet anti-seismic performance verification apparatus of claim 6, wherein the in-cabinet accessory structure comprises at least:
a horizontal mounting backboard, a vertical module mounting auxiliary, a tray, a drawing equipment auxiliary and a column auxiliary;
the frame structure comprises at least: a cabinet top 4 fan unit structure and a cabinet top 2 fan unit structure.
8. The nuclear power plant instrument control cabinet anti-seismic performance verification apparatus of claim 6, wherein cabinet identifications in the cabinet identification set at least comprise:
FCS cabinet identification, server cabinet identification, network cabinet identification, gateway cabinet identification, power distribution cabinet identification, and relay cabinet identification.
9. The nuclear power plant instrument control cabinet anti-seismic performance verification apparatus according to claim 6, wherein the acquiring the natural frequency of each anti-seismic test prototype comprises:
and calculating the natural frequency of each anti-seismic test prototype by adopting a finite element simulation technology.
10. The nuclear power plant instrument control cabinet anti-seismic performance verification apparatus according to claim 6, wherein the obtaining an anti-seismic test prototype matched with the natural frequency of the cabinet to be tested, denoted as a target prototype, comprises:
acquiring the earthquake resistance test prototype, wherein the difference value between the earthquake resistance test prototype and the natural frequency of the test cabinet is within a preset range, and marking the earthquake resistance test prototype as a target prototype;
the step of obtaining the earthquake resistance parameter of the target prototype as the earthquake resistance parameter of the cabinet to be tested comprises the following steps:
and acquiring the average earthquake resistance parameter of the target prototype as the earthquake resistance parameter of the cabinet to be tested.
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