Abnormality detection method, system and equipment for control rod in reactor and medium

Abstract

The invention provides an anomaly detection method, system, equipment and medium for a control rod in a reactor, and the anomaly detection method comprises the following steps: obtaining standard optical signal information of a chain when the chain drives the control rod to move under a standard working condition by adopting a laser detection device; acquiring a plurality of actual optical signal information of the chain when the chain drives the control rod to move under different actual working conditions by adopting a laser detection device; based on different actual optical signal information and standard optical signal information, obtaining quantity information of the actual optical signal information when the quantity information is inconsistent with the standard optical signal information; in response to the fact that the number information exceeds a first threshold value, determining that the chain is abnormal, and stopping the motion of the driving control rod; and in response to the fact that the quantity information does not exceed the first threshold value, determining that the control rod is not abnormal under the driving of the chain. Through the anomaly detection method provided by the invention, whether the control rod breaks down in the moving process or not can be determined under the condition that the control rod is not contacted.

Description

Technical Field

[0001] The present disclosure relates to the field of data measurement, and particularly to an abnormal detection method, system, device and medium for control rods in a reactor. Background Art

[0002] In a reactor, traditional chain-type and wire rope hub-type control rod drive mechanism transmission systems usually adopt relative position measurement devices such as synchros, encoders, and resolvers. These devices are directly installed in mechanical contact with the drive mechanism, and convert the linear displacement of the control rod into an angle for indirect measurement. However, this indirect measurement method has some problems: on the one hand, the position measurement device in contact with the control rod drive mechanism may be damaged due to wear or failure, thus affecting the operating function and safety function of the control rod; on the other hand, due to indirect measurement, it is impossible to directly determine whether there are working conditions such as idling, chain skipping, chain slipping, rod jamming, and chain jamming in the control rod drive mechanism during operation. Summary of the Invention

[0003] The technical problem to be solved by the present disclosure is to overcome the defect in the prior art that it is impossible to determine whether there is a fault in the control rod during movement, and to provide an abnormal detection method, system, device and medium for control rods in a reactor.

[0004] The present disclosure solves the above technical problem through the following technical solutions:

[0005] According to a first aspect of the present disclosure, there is provided an abnormal detection method for a control rod in a reactor, the abnormal detection method being based on detection by a laser detection device, wherein the laser detection device includes a plurality of groups of laser emission units and laser reception units; the laser emission units and the laser reception units are correspondingly arranged on both sides of a chain that drives the control rod to move; the chain is driven by a drive mechanism to drive the control rod to move;

[0006] The abnormal detection method includes:

[0007] Using the laser detection device to obtain standard optical signal information of the chain when the chain drives the control rod to move under standard working conditions;

[0008] Using the laser detection device to obtain a plurality of actual optical signal information of the chain when the chain drives the control rod to move under different actual working conditions;

[0009] Based on different actual optical signal information and the standard optical signal information, obtaining the quantity information of the actual optical signal information when it is inconsistent with the standard optical signal information;

[0010] In response to the quantity information exceeding a first threshold, it is determined that the chain is abnormal, so as to determine that the control rod is abnormal under the drive of the chain, and the movement of the control rod is stopped;

[0011] In response to the quantity information not exceeding the first threshold, it is determined that the control rod is not abnormal under the drive of the chain.

[0012] Optionally, the laser detection device includes: at least one group of a first laser emitting unit and a first laser receiving unit vertically arranged on both sides of the chain; and at least one group of a second laser emitting unit and a second laser receiving unit vertically arranged on both sides of the chain;

[0013] Wherein, the optical path of the optical signal emitted by the second laser emitting unit intersects with the optical path of the optical signal emitted by the first laser emitting unit;

[0014] The abnormal detection method includes:

[0015] Obtaining first actual optical signal information based on the first laser receiving unit;

[0016] Obtaining second actual optical signal information based on the second laser receiving unit;

[0017] In response to both the first actual optical signal information and the second actual optical signal information being consistent with the standard optical signal information, the control rod is not abnormal under the drive of the chain;

[0018] In response to the first actual optical signal information and / or the second actual optical signal information being inconsistent with the standard optical signal information, the control rod is abnormal under the drive of the chain, and the movement of the control rod is stopped.

[0019] Optionally, the laser detection device further includes: a third laser emitting unit and a third laser receiving unit;

[0020] Wherein, the optical path of the optical signal emitted by the third laser emitting unit is parallel to the optical path of the optical signal emitted by the first laser emitting unit, and the distance between the two optical paths is less than the longest gap of each link of the chain in the moving direction;

[0021] The abnormal detection method further includes:

[0022] Obtaining the first actual optical signal information and the third actual optical signal information respectively based on the first laser receiving unit and the third laser receiving unit;

[0023] Determining the movement state of the control rod based on the first actual optical signal information and the third actual optical signal information.

[0024] Optionally, the laser optical paths of the third laser emitting unit and the third laser receiving unit are parallel and located below the laser optical paths of the first laser emitting unit and the first laser receiving unit;

[0025] The step of determining the motion state of the control rod specifically includes:

[0026] If the first actual optical signal information changes prior to the third actual optical signal information, the control rod is in the ascending state;

[0027] If the third actual optical signal information changes prior to the first actual optical signal information, the control rod is in the descending state;

[0028] Or,

[0029] The laser optical paths of the third laser emitting unit and the third laser receiving unit are parallel and located above the laser optical paths of the first laser emitting unit and the first laser receiving unit;

[0030] If the first actual optical signal information changes prior to the third actual optical signal information, the control rod is in the descending state;

[0031] If the third actual optical signal information changes prior to the first actual optical signal information, the control rod is in the ascending state.

[0032] Optionally, after the step of determining that the control rod is abnormal under the drive of the chain, the abnormal detection method further includes:

[0033] Generating fault information; and / or, a fault response strategy.

[0034] Optionally, after the step of generating the fault information or generating the fault response strategy, the abnormal detection method further includes:

[0035] Generating a fault alarm message.

[0036] According to a second aspect of the present disclosure, there is provided an abnormal detection system for a control rod in a reactor, the abnormal detection system being detected based on a plurality of laser detection devices, wherein the laser detection devices include a plurality of groups of laser emitting units and laser receiving units; the laser emitting units and the laser receiving units are correspondingly arranged on both sides of a chain that drives the control rod to move; the chain is driven by a driving mechanism to drive the control rod to move;

[0037] The abnormal detection system includes:

[0038] A first acquisition module, configured to acquire standard optical signal information of the chain when the chain drives the control rod under standard working conditions by using the laser detection device;

[0039] A second acquisition module, configured to acquire a plurality of actual optical signal information of the chain when the chain drives the control rod under different actual working conditions by using the laser detection device;

[0040] A third acquisition module, configured to acquire quantity information of the actual optical signal information when the actual optical signal information is inconsistent with the standard optical signal information based on different actual optical signal information and the standard optical signal information;

[0041] A processing module, configured to determine that the chain is abnormal in response to the quantity information exceeding a first threshold, so as to determine that the control rod is abnormal under the drive of the chain, and stop driving the movement of the control rod;

[0042] The processing module is further configured to determine that the control rod is not abnormal under the drive of the chain in response to the quantity information not exceeding the first threshold.

[0043] Optionally, the laser detection device includes: at least one set of a first laser emitting unit and a first laser receiving unit vertically arranged on both sides of the chain; and at least one set of a second laser emitting unit and a second laser receiving unit non-vertically arranged on both sides of the chain;

[0044] Wherein, an optical path of an optical signal emitted by the second laser emitting unit intersects an optical path of an optical signal emitted by the first laser emitting unit;

[0045] The abnormal detection system further includes:

[0046] A fourth acquisition module, configured to acquire first actual optical signal information based on the first laser receiving unit;

[0047] The fourth acquisition module is further configured to acquire second actual optical signal information based on the second laser receiving unit;

[0048] A fault confirmation module, configured to determine that the control rod is not abnormal under the drive of the chain in response to both the first actual optical signal information and the second actual optical signal information being consistent with the standard optical signal information;

[0049] The fault confirmation module is further configured to determine that the control rod is abnormal under the drive of the chain and stop driving the movement of the control rod in response to the first actual optical signal information and / or the second actual optical signal information being inconsistent with the standard optical signal information.

[0050] Optionally, the laser detection device further includes: a third laser emitting unit and a third laser receiving unit;

[0051] Wherein, the optical path of the optical signal emitted by the third laser emitting unit is parallel to the optical path of the optical signal emitted by the first laser emitting unit, and the distance between the two optical paths is less than the longest gap of each link in the chain along the moving direction;

[0052] The anomaly detection system further includes:

[0053] A fifth acquisition module, which is configured to acquire the first actual optical signal information and the third actual optical signal information based on the first laser receiving unit and the third laser receiving unit respectively;

[0054] A motion state determination module, which is configured to determine the motion state of the control rod based on the first actual optical signal information and the third actual optical signal information.

[0055] Optionally, the laser optical paths of the third laser emitting unit and the third laser receiving unit are parallel and located below the laser optical paths of the first laser emitting unit and the first laser receiving unit;

[0056] The motion state determination module is configured to respond that the first actual optical signal information changes prior to the third actual optical signal information, then the control rod is in the rising state;

[0057] The motion state determination module is configured to respond that the third actual optical signal information changes prior to the first actual optical signal information, then the control rod is in the falling state;

[0058] Or,

[0059] The laser optical paths of the third laser emitting unit and the third laser receiving unit are parallel and located above the laser optical paths of the first laser emitting unit and the first laser receiving unit;

[0060] The motion state determination module is configured to respond that the first actual optical signal information changes prior to the third actual optical signal information, then the control rod is in the falling state;

[0061] The motion state determination module is configured to respond that the third actual optical signal information changes prior to the first actual optical signal information, then the control rod is in the rising state.

[0062] Optionally, the anomaly detection system further includes a fault generation module configured to generate fault information after the step of determining that the control rod is abnormal under the drive of the chain; and / or, a fault response strategy.

[0063] Optionally, the anomaly detection system further includes a fault reminder module configured to generate a fault warning message after the step of generating the fault information or generating the fault response strategy.

[0064] According to a third aspect of the present disclosure, there is provided an electronic device including a memory, a processor, and a computer program stored on the memory and configured to run on the processor, where when the processor executes the computer program, the anomaly detection method for the control rod in the reactor described in the first aspect of the present disclosure is implemented.

[0065] According to a fourth aspect of the present disclosure, there is provided a computer-readable storage medium having a computer program stored thereon, where when the computer program is executed by a processor, the anomaly detection method for the control rod in the reactor described in the first aspect of the present disclosure is implemented.

[0066] According to a fifth aspect of the present disclosure, there is provided a computer program product including a computer program, where when the computer program is executed by a processor, the anomaly detection method for the control rod in the reactor described in the first aspect of the present disclosure is implemented.

[0067] On the basis of conforming to the common knowledge in the art, the above preferred conditions can be combined arbitrarily to obtain various preferred examples of the present disclosure.

[0068] The positive and progressive effects of the present disclosure are as follows:

[0069] In the anomaly detection method for the control rod in the reactor provided by the present disclosure, by setting up a non-contact laser detection device to obtain the actual optical signal information during the movement of the chain and comparing it with the optical signal information during normal operation, the rod position information during the movement of the control rod can be intuitively, simply and effectively obtained by directly reading the optical signal information, and whether an abnormal condition occurs during the movement of the control rod can be determined according to the comparison result. Moreover, through the non-contact detection method, direct contact with the chain and the control rod is avoided, so that the detected object will not be worn or damaged, and at the same time, the safety of the detection personnel is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] Figure 1 It is a schematic flow chart of the anomaly detection method for the control rod in the reactor provided for Example 1;

[0071] Figure 2 It is a schematic flow chart of determining the movement state of the control rod provided for Example 1;

[0072] Figure 3 Schematic diagram of the normal operation structure of the control rod in the reactor provided in Example 1;

[0073] Figure 4 Schematic diagram of the abnormal structure of the control rod during movement in the reactor provided in Example 1;

[0074] Figure 5 Schematic diagram of the signal comparison of the control rod in the reactor provided in Example 1;

[0075] Figure 6 Schematic diagram of the structure of the abnormal detection system of the control rod in the reactor provided in Example 2;

[0076] Figure 7 Schematic diagram of the structure of the electronic device provided in Example 3. Detailed implementation manners

[0077] The present disclosure will be further described below by way of examples, but the present disclosure is not limited to the scope of the described examples.

[0078] In the embodiments of the present disclosure, prefix words such as "first" and "second" are only used to distinguish different described objects, and have no limiting effect on the position, order, priority, quantity or content of the described objects, etc. The use of ordinal numbers and other prefix words for distinguishing described objects in the embodiments of the present disclosure does not constitute a limitation on the described objects. The statements of the described objects refer to the description in the context of the claims or embodiments, and should not constitute unnecessary limitations due to the use of such prefix words. In addition, in the description of this embodiment, unless otherwise specified, the meaning of "a plurality" is two or more.

[0079] Example 1

[0080] In this embodiment, an abnormal detection method for a control rod in a reactor is provided. The abnormal detection method is based on detection by a laser detection device. Among them, the laser detection device includes a plurality of groups of laser emission units and laser reception units; the laser emission units and the laser reception units are correspondingly arranged on both sides of the chain that drives the control rod to move; the chain is driven by a driving mechanism to drive the control rod to move;

[0081] As Figure 1 shown, the abnormal detection method includes:

[0082] S11: Use the laser detection device to obtain the standard optical signal information of the chain when the chain drives the control rod to move under standard working conditions;

[0083] S12: Use the laser detection device to obtain a plurality of actual optical signal information of the chain when the chain drives the control rod to move under different actual working conditions;

[0084] S13: Based on different actual optical signal information and standard optical signal information, when they are inconsistent, obtain the quantity information of the actual optical signal information;

[0085] S14: In response to the quantity information exceeding the first threshold, determine that the chain has an abnormality, thereby determining that the control rod has an abnormality under the drive of the chain, and stop driving the movement of the control rod; in response to the quantity information not exceeding the first threshold, determine that the control rod has no abnormality under the drive of the chain.

[0086] In this embodiment, the laser emission unit and the laser reception unit are a laser and a receiver respectively.

[0087] The optical signal information in this embodiment is "0" and "1" signals. Specifically, when the receiver receives the optical signal emitted by the laser, the signal is "1" at this time; when the receiver does not receive the signal emitted by the laser, the signal is "0" at this time.

[0088] When the drive mechanism controls the chain to drive the control rod to move normally, due to the action of gravity, the chain is in a stretched state, and the signal frequency received by the receiver is also fixed. When an abnormality occurs during the movement of the control rod, the chain will be distorted. Therefore, the signal frequency received by the signal receiver will change. Furthermore, by comparing the actual optical signal information with the standard optical signal information, it can be quickly determined whether an abnormality occurs during the movement of the control rod.

[0089] By setting a non-contact laser detection device to obtain the actual optical signal information when the chain moves, and comparing it with the optical signal information during normal operation, the rod position information during the movement of the control rod can be intuitively, simply and effectively obtained by directly reading the optical signal information, and whether an abnormal condition occurs during the movement of the control rod can be determined according to the comparison result. Moreover, through the non-contact detection method, direct contact with the chain and the control rod is avoided, so that the detected object will not be worn or damaged, and at the same time, the safety of the detection personnel is guaranteed.

[0090] The laser detection device in this embodiment includes: at least one group of first laser emission units and first laser reception units vertically arranged on both sides of the chain; and at least one group of second laser emission units and second laser reception units vertically arranged on both sides of the chain;

[0091] Wherein, the optical path of the optical signal emitted by the second laser emission unit intersects with the optical path of the optical signal emitted by the first laser emission unit.

[0092] In a specific embodiment, the specific settings of the positions of the first laser emitting unit, the first laser receiving unit, the second laser emitting unit, and the second laser receiving unit are as follows: The first laser emitting unit and the first laser receiving unit are arranged on both sides of the chain, and the optical path emitted by them is perpendicular to the chain in the normal state (i.e., the natural falling state); the second laser emitting unit is arranged vertically above (or below) the first laser emitting unit, and at this time, the second laser receiving unit on the other side of the chain is arranged vertically below (or above) the first laser receiving unit.

[0093] As Figure 2 shown, the anomaly detection method in this embodiment further includes:

[0094] S21: Obtain the first actual optical signal information based on the first laser receiving unit;

[0095] S22: Obtain the second actual optical signal information based on the second laser receiving unit;

[0096] S23: In response to both the first actual optical signal information and the second actual optical signal information being consistent with the standard optical signal information, it is determined that the control rod does not show an anomaly under the drive of the chain; in response to the first actual optical signal information and / or the second actual optical signal information being inconsistent with the standard optical signal information, it is determined that the control rod shows an anomaly under the drive of the chain, and the movement of the control rod is stopped.

[0097] In this embodiment, by setting multiple groups of laser detection devices, more accurate determination of whether the control rod shows an anomaly during movement can be achieved through the comparison of multiple groups of optical signal information, or, through the comparison of the optical signal information detected by the laser detection devices set from different angles.

[0098] The laser detection device in this embodiment further includes: a third laser emitting unit and a third laser receiving unit;

[0099] Wherein, the optical path of the optical signal emitted by the third laser emitting unit is parallel to the optical path of the optical signal emitted by the first laser emitting unit, and the distance between the two optical paths is less than the longest gap of each link of the chain in the moving direction.

[0100] Wherein, when the chain is formed by connecting multiple links in series, the longest gap can be understood as the diameter information of one link.

[0101] The anomaly detection method further includes:

[0102] Obtain the first actual optical signal information and the third actual optical signal information respectively based on the first laser receiving unit and the third laser receiving unit;

[0103] Determine the movement state of the control rod based on the first actual optical signal information and the third actual optical signal information.

[0104] Wherein, the laser optical paths of the third laser emitting unit and the third laser receiving unit are parallel and located below the laser optical paths of the first laser emitting unit and the first laser receiving unit; preferably, the laser optical paths of the third laser emitting unit and the third laser receiving unit are parallel and located directly below the laser optical paths of the first laser emitting unit and the first laser receiving unit.

[0105] The steps of determining the motion state of the control rod specifically include:

[0106] If the first actual optical signal information changes prior to the third actual optical signal information, the control rod is in the ascending state;

[0107] If the third actual optical signal information changes prior to the first actual optical signal information, the control rod is in the descending state;

[0108] Or,

[0109] The laser optical paths of the third laser emitting unit and the third laser receiving unit are parallel and located above the laser optical paths of the first laser emitting unit and the first laser receiving unit; preferably, the laser optical paths of the third laser emitting unit and the third laser receiving unit are parallel and located directly above the laser optical paths of the first laser emitting unit and the first laser receiving unit;

[0110] If the first actual optical signal information changes prior to the third actual optical signal information, the control rod is in the descending state;

[0111] If the third actual optical signal information changes prior to the first actual optical signal information, the control rod is in the ascending state.

[0112] In this embodiment, through the arrangement of two sets of laser detection devices, the change information of the two sets of optical signals within the same time period is obtained, and the motion state of the control rod, whether it is in the ascending state or the descending state, is determined based on the change information. Thus, the operator can adjust the power output of the reactor according to the specific motion state, improving the operator's experience.

[0113] In this embodiment, after the step of determining that a fault occurs during the movement of the control rod, the rod position measurement method further includes:

[0114] Generating fault information; and / or, generating a fault response strategy.

[0115] In one implementation, the generated fault information can be data that details the fault situation when it is detected that the control rod malfunctions during operation, enabling the operator to take relevant countermeasures based on the specific fault information to ensure the safe operation of the reactor.

[0116] Among them, the data that details the fault situation at least includes the fault type (such as "idling", "chain skipping", "chain jamming", "rod jamming", etc.), the time when the fault occurred (such as the timestamp information when the fault occurred), and the relevant parameters of the current drive mechanism (such as the moving speed and displacement deviation of the control rod).

[0117] In one implementation, the fault response strategy is the relevant measures that the operator can take after a fault is detected, thereby reducing the impact of the fault on the reactor performance to ensure the safe operation of the reactor.

[0118] Among them, after the steps of generating fault information and / or generating a fault response strategy, the rod position measurement method further includes:

[0119] Generating a fault warning message.

[0120] In one implementation, the generated fault warning message can be at least one of a sound message and a display message, thereby being used to remind the operator to take relevant measures in a timely manner to ensure the safe operation of the reactor.

[0121] The working principle of the abnormal detection method for the control rod in the reactor in the embodiments of the present disclosure will be described below with specific implementations:

[0122] As Figure 3 shown, four groups of laser transceiver devices are arranged on both sides of the chain, namely laser 1, laser 2, laser 3, laser 4 and receiver 1, receiver 2, receiver 3 and receiver 4. Among them, laser 1 and laser 2 or laser 3 and laser 4 have the same height difference; laser 1 and laser 3 or laser 2 and laser 4 have a phase difference of 90 degrees on the same horizontal plane.

[0123] The control rod drive mechanism is connected to the control rod through a chain. The operation of the control rod drive mechanism drives the control rod to rise and fall, realizing the functions of reactor startup, power increase, power reduction, and shutdown.

[0124] When receiver 1 receives a signal and then receiver 2 receives a signal, it can be determined that the control rod is moving upward; if the signal reception sequence "2" precedes "1", then the control rod is moving downward.

[0125] The control rod chain is fixed and stressed at the drive mechanism, and the end of the control rod is in a free state. It will swing during operation. When the optical paths of receivers 1 and 2 are blocked due to the swing of the chain, the assembly structure of the chain ensures that receivers 3 and 4 at a 90-degree angle to it will not be blocked simultaneously. Thus, during the operation of the control rod, the "blind zone" in the measurement of the control rod position caused by the swing of the chain can be avoided.

[0126] As Figure 4 shown, when there are abnormalities such as chain jamming or rod jamming during the operation of the control rod, obvious distortion of the position measurement signal will occur in the measurement.

[0127] As Figure 5 shown, when abnormalities such as chain jamming or rod jamming occur, by comparing the standard optical signal information, the states of chain jamming and rod jamming of the control rod can be quickly judged, reminding the operator on duty to take emergency measures, thereby ensuring the safe operation of the reactor.

[0128] The simple method for measuring the position of the reactor control rod with orthogonal and vertical optical paths belongs to non-contact (ND) direct rod position measurement. It can directly, quickly, and effectively read out the rod position of the control rod and judge whether there are working conditions such as rod jamming, chain jamming, idling, chain skipping, and chain slipping of the control rod. The comparison of the signals is a direct comparison of "0" and "1" signals, and then the state of the control rod can be quickly determined.

[0129] In this embodiment, a non-contact (ND) direct measurement simple device for the position of the control rod driven by a chain is composed of four sets of laser transceiver and detection measurement systems with a 90-degree phase difference on the same horizontal plane and the same phase but different vertical installation positions. The movement direction of the control rod is determined by the pulse sequence relationship between the two detection measurement systems with the same installation position phase but different vertical deviations.

[0130] Through the "AND" logic relationship combination of the pulse "readings" of the two detection measurement systems installed on the same horizontal plane and with a 90-degree difference, the real-time position of the control rod is obtained; through the change in the width of the spacing measured at the "knot" of the chain caused by "chain jamming and stacking" of the chain, the states of rod jamming and chain jamming of the control rod can be directly measured, and at the same time, the working conditions such as idling, chain skipping, and chain slipping of the drive mechanism can be detected.

[0131] Embodiment 2

[0132] As Figure 6 shown, in this embodiment, an abnormal detection system for the control rod in the reactor is also provided. The abnormal detection system is detected based on a number of laser detection devices. Among them, the laser detection device includes a number of groups of laser emission units and laser reception units; the laser emission units and laser reception units are correspondingly arranged on both sides of the chain that drives the control rod to move; the chain is driven by a drive mechanism to drive the control rod to move;

[0133] The anomaly detection system includes:

[0134] A first acquisition module 100, configured to acquire standard optical signal information of a chain when the chain drives a control rod to move under standard working conditions by using a laser detection device;

[0135] A second acquisition module 200, configured to acquire a plurality of actual optical signal information of the chain when the chain drives a control rod to move under different actual working conditions by using a laser detection device;

[0136] A third acquisition module 300, configured to acquire quantity information of the actual optical signal information when it is inconsistent with the standard optical signal information based on the different actual optical signal information and the standard optical signal information;

[0137] A processing module 400, configured to determine that the chain is abnormal in response to the quantity information exceeding a first threshold, so as to determine that the control rod is abnormal under the drive of the chain, and stop driving the control rod to move;

[0138] The processing module 400 is further configured to determine that the control rod is not abnormal under the drive of the chain in response to the quantity information not exceeding the first threshold.

[0139] In this embodiment, the laser detection device includes: at least one set of a first laser emitting unit and a first laser receiving unit vertically arranged on both sides of the chain; and at least one set of a second laser emitting unit and a second laser receiving unit non-vertically arranged on both sides of the chain;

[0140] Wherein, the optical path of the optical signal emitted by the second laser emitting unit intersects with the optical path of the optical signal emitted by the first laser emitting unit;

[0141] The anomaly detection system further includes:

[0142] A fourth acquisition module 500, configured to acquire first actual optical signal information based on the first laser receiving unit;

[0143] The fourth acquisition module 500 is further configured to acquire second actual optical signal information based on the second laser receiving unit;

[0144] A fault confirmation module 600, configured to determine that the control rod is not abnormal under the drive of the chain in response to both the first actual optical signal information and the second actual optical signal information being consistent with the standard optical signal information;

[0145] The fault confirmation module 600 is further configured to determine that the control rod is abnormal under the drive of the chain and stop driving the control rod to move in response to the first actual optical signal information and / or the second actual optical signal information being inconsistent with the standard optical signal information.

[0146] Optionally, the laser detection device further includes: a third laser emission unit and a third laser reception unit;

[0147] Wherein, the optical path of the optical signal emitted by the third laser emission unit is parallel to the optical path of the optical signal emitted by the first laser emission unit, and the distance between the two optical paths is less than the longest gap of each link in the chain along the movement direction;

[0148] The anomaly detection system further includes:

[0149] A fifth acquisition module 700, which is used to respectively acquire first actual optical signal information and third actual optical signal information based on the first laser reception unit and the third laser reception unit;

[0150] A motion state determination module 800, which is used to determine the motion state of the control rod based on the first actual optical signal information and the third actual optical signal information.

[0151] In this embodiment, the laser optical paths of the third laser emission unit and the third laser reception unit are parallel and located below the laser optical paths of the first laser emission unit and the first laser reception unit;

[0152] The motion state determination module 800 is used to respond that the first actual optical signal information changes prior to the third actual optical signal information, then the control rod is in the ascending state;

[0153] The motion state determination module 800 is used to respond that the third actual optical signal information changes prior to the first actual optical signal information, then the control rod is in the descending state;

[0154] Or,

[0155] The laser optical paths of the third laser emission unit and the third laser reception unit are parallel and located above the laser optical paths of the first laser emission unit and the first laser reception unit;

[0156] The motion state determination module 800 is used to respond that the first actual optical signal information changes prior to the third actual optical signal information, then the control rod is in the descending state;

[0157] The motion state determination module 800 is used to respond that the third actual optical signal information changes prior to the first actual optical signal information, then the control rod is in the ascending state.

[0158] In this embodiment, the anomaly detection system further includes a fault generation module 900, which is used to generate fault information after the step of determining that the control rod appears abnormal under the drive of the chain; and / or, a fault response strategy.

[0159] In this embodiment, the anomaly detection system further includes a fault reminder module 1000, which is configured to generate a fault warning message after the steps of generating fault information or generating a fault response strategy.

[0160] For the system embodiment, since it basically corresponds to the method embodiment, the relevant parts can be referred to the partial description of the method embodiment. The system embodiments described above are only illustrative. The units described as separate components may or may not be physically separated. The components as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the present disclosure solution.

[0161] In the anomaly detection system of the control rod in the reactor provided by the present disclosure, a non-contact laser detection device is set to obtain the actual optical signal information when the chain moves, and compare it with the optical signal information during normal operation. Thus, by directly reading the optical signal information, the rod position information when the control rod moves can be obtained intuitively, simply and effectively, and whether an abnormal condition occurs when the control rod moves can be determined according to the comparison result. And through the non-contact detection method, direct contact with the chain and the control rod is avoided, so that the detected object will not be worn or damaged, and at the same time, the safety of the detection personnel is ensured.

[0162] Embodiment 3

[0163] As Figure 7 shown, Figure 7 is a schematic structural diagram of an electronic device provided by Embodiment 3 of the present disclosure. The electronic device includes a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the method in the above embodiment is implemented. Figure 7 The displayed electronic device 30 is only an example and should not bring any limitation to the functions and usage scope of the embodiments of the present disclosure.

[0164] As Figure 7 shown, the electronic device 30 can be represented in the form of a general-purpose computing device. For example, it can be a server device. The components of the electronic device 30 may include, but are not limited to: at least one of the above-mentioned processors 31, at least one of the above-mentioned memories 32, and a bus 33 connecting different system components (including the memory 32 and the processor 31).

[0165] The bus 33 includes a data bus, an address bus, and a control bus.

[0166] The memory 32 may include volatile memory, such as a random access memory (RAM) 321 and / or a cache memory 322, and may further include a read-only memory (ROM) 323.

[0167] The memory 32 may also include a program / utilities 325 having a set (at least one) of program modules 324. Such program modules 324 include, but are not limited to: an operating system, one or more application programs, other program modules, and program data. Each or some combination of these examples may include the implementation of a network environment.

[0168] The processor 31 executes various functional applications and data processing by running computer programs stored in the memory 32, such as the methods in the above embodiments of the present disclosure.

[0169] The electronic device 30 may also communicate with one or more external devices 34 (such as a keyboard, a pointing device, etc.). Such communication may be carried out through an input / output (I / O) interface 35. And, the model generation device 30 may also communicate with one or more networks (such as a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) through a network adapter 36. As Figure 7 shown, the network adapter 36 communicates with other modules of the model generation device 30 through the bus 33. It should be understood that, although not shown in the figure, other hardware and / or software modules may be used in combination with the model generation device 30, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (Redundant Array of Independent Disks) systems, magnetic tape drives, and data backup storage systems, etc.

[0170] It should be noted that, although several units / modules or sub-units / modules of the electronic device are mentioned in the above detailed description, such a division is merely exemplary and not mandatory. In fact, according to the embodiments of the present disclosure, the features and functions of two or more of the above-described units / modules may be embodied in one unit / modules. Conversely, the features and functions of one unit / modules described above may be further divided and embodied by multiple unit / modules.

[0171] Embodiment 4

[0172] The embodiments of the present disclosure also provide a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, it implements the abnormal detection of control rods in a reactor provided in any of the above embodiments.

[0173] Among them, the more specific forms that the readable storage medium may adopt may include, but are not limited to: portable disks, hard disks, random access memories, read-only memories, erasable programmable read-only memories, optical storage devices, magnetic storage devices, or any suitable combination of the above.

[0174] Embodiment 5

[0175] An embodiment of the present disclosure also provides a computer program product, including a computer program, which when executed by a processor, implements the abnormal detection of control rods in a reactor provided in any of the above embodiments.

[0176] Among them, the program code for executing the computer program product of the present disclosure can be written in any combination of one or more programming languages, and the program code can be executed entirely on a user device, partially on a user device, executed as an independent software package, partially on a user device and partially on a remote device, or entirely on a remote device.

[0177] Although the specific implementation manners of the present disclosure have been described above, those skilled in the art should understand that this is only an example, and the protection scope of the present disclosure is defined by the appended claims. Without departing from the principles and essence of the present disclosure, those skilled in the art can make various changes or modifications to these implementation manners, but these changes and modifications all fall within the protection scope of the present disclosure.

Claims

1. An abnormal detection method for control rods in a reactor, characterized in that, The abnormal detection method is based on the detection of a laser detection device. Among them, the laser detection device includes several groups of laser emission units and laser reception units; the laser emission units and the laser reception units are correspondingly arranged on both sides of the chain that drives the control rod to move; the chain is driven by a driving mechanism to drive the control rod to move; The abnormal detection method includes: Using the laser detection device to obtain the standard optical signal information of the chain when the chain drives the control rod to move under standard working conditions; Using the laser detection device to obtain several actual optical signal information of the chain when the chain drives the control rod to move under different actual working conditions; Based on different actual optical signal information and the standard optical signal information, when the standard optical signal information is inconsistent, obtain the quantity information of the actual optical signal information; In response to the quantity information exceeding the first threshold, it is determined that the chain is abnormal, so as to determine that the control rod is abnormal under the drive of the chain, and stop driving the control rod to move; In response to the quantity information not exceeding the first threshold, it is determined that the control rod is not abnormal under the drive of the chain.

2. The abnormal detection method of the control rod in the reactor according to claim 1, characterized in that, The laser detection device includes: at least one group of first laser emission units and first laser reception units vertically arranged on both sides of the chain; and at least one group of second laser emission units and second laser reception units vertically arranged on both sides of the chain; Among them, the optical path of the optical signal emitted by the second laser emission unit intersects with the optical path of the optical signal emitted by the first laser emission unit; The abnormal detection method further includes: Obtaining first actual optical signal information based on the first laser reception unit; Obtaining second actual optical signal information based on the second laser reception unit; In response to both the first actual optical signal information and the second actual optical signal information being consistent with the standard optical signal information, the control rod is not abnormal under the drive of the chain; In response to the first actual optical signal information and / or the second actual optical signal information being inconsistent with the standard optical signal information, the control rod is abnormal under the drive of the chain, and stop driving the control rod to move.

3. The abnormal detection method for control rods in a reactor according to claim 2, characterized in that, The laser detection device further includes: a third laser emission unit and a third laser reception unit; Among them, the optical path of the optical signal emitted by the third laser emission unit is parallel to the optical path of the optical signal emitted by the first laser emission unit, and the distance between the two optical paths is less than the longest gap of each link of the chain along the movement direction; The abnormal detection method further includes: Obtaining the first actual optical signal information and the third actual optical signal information respectively based on the first laser reception unit and the third laser reception unit; Determining the movement state of the control rod based on the first actual optical signal information and the third actual optical signal information.

4. The abnormal detection method for control rods in a reactor according to claim 3, characterized in that, The laser optical paths of the third laser emission unit and the third laser reception unit are parallel and located below the laser optical paths of the first laser emission unit and the first laser reception unit; The step of determining the motion state of the control rod specifically includes: If the change of the first actual optical signal information takes precedence over the change of the third actual optical signal information, the control rod is in the rising state; If the change of the third actual optical signal information takes precedence over the change of the first actual optical signal information, the control rod is in the falling state; Or, The laser optical paths of the third laser emitting unit and the third laser receiving unit are parallel and located above the laser optical paths of the first laser emitting unit and the first laser receiving unit; If the change of the first actual optical signal information takes precedence over the change of the third actual optical signal information, the control rod is in the falling state; If the change of the third actual optical signal information takes precedence over the change of the first actual optical signal information, the control rod is in the rising state.

5. The abnormal detection method of the control rod in the reactor according to any one of claims 1-4, characterized in that, After the step of determining that the control rod is abnormal under the drive of the chain, the abnormal detection method further includes: Generating fault information; and / or, a fault response strategy.

6. The abnormal detection method of the control rod in the reactor according to claim 5, characterized in that, After the step of generating the fault information or generating the fault response strategy, the abnormal detection method further includes: Generating a fault warning message.

7. An abnormal detection system for control rods in a reactor, characterized in that, The abnormal detection system is detected based on a plurality of laser detection devices, wherein the laser detection devices include a plurality of groups of laser emitting units and laser receiving units; the laser emitting units and the laser receiving units are correspondingly arranged on both sides of the chain that drives the control rod to move; the chain is driven by a driving mechanism to drive the control rod to move; The abnormal detection system includes: A first acquisition module, configured to use the laser detection device to acquire the standard optical signal information of the chain when the chain drives the control rod to move under standard working conditions; A second acquisition module, configured to use the laser detection device to acquire a plurality of actual optical signal information of the chain when the chain drives the control rod to move under different actual working conditions; A third acquisition module, configured to obtain the quantity information of the actual optical signal information when it is inconsistent with the standard optical signal information based on different actual optical signal information and the standard optical signal information; A processing module, configured to determine that the chain is abnormal and determine that the control rod is abnormal under the drive of the chain and stop driving the control rod to move in response to the quantity information exceeding a first threshold; The processing module is further configured to determine that the control rod is not abnormal under the drive of the chain in response to the quantity information not exceeding the first threshold.

8. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and adapted to run on the processor, characterized in that, When the processor executes the computer program, it implements the abnormal detection method of the control rod in the reactor according to any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the abnormal detection method of the control rod in the reactor according to any one of claims 1 to 6.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the abnormal detection method of the control rod in the reactor according to any one of claims 1 to 6.

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