Rod position control system of reactor control rod, power coil detection method and device and computer equipment

Abstract

The invention relates to a rod position control system of a reactor control rod, a power coil detection method and device and computer equipment. The power coils are coaxially distributed, and the power coils and the rod position measuring probe are coaxially distributed, so that when the reactor control rod is inserted into a reactor core, the temperatures of different power coils are basically consistent, and the temperatures of the power coils and the rod position measuring probe are also basically consistent; the temperature of the power coil can be determined by measuring the temperature of the rod position measuring probe, and the current temperature, obtained based on the measuring resistance of the measuring coil, of the rod position measuring probe is relatively accurate, so that the determined current temperature of the power coil is relatively high in accuracy; therefore, the determined current resistance value of the power coil at the standard temperature based on the current temperature of the power coil is relatively accurate, and the detection reliability of the power coil is improved.

Description

Technical Field

[0001] This application relates to the field of nuclear power unit testing technology, and in particular to a reactor control rod position control system, as well as a power coil detection method, apparatus and computer equipment. Background Technology

[0002] The control rod control system is one of the specialized systems in nuclear power plants, comprising two main parts: the rod position control system and the rod position measurement system. Rod position control is achieved through the CRDM (Control Rod Drive Mechanism). The CRDM is a step-type lifting mechanism used to raise, insert, or hold control rod assemblies in the appropriate position within the reactor core to achieve reactivity control. The core components of the CRDM are multiple power coils, and the temperature of these power coils is a major factor affecting the performance of the CRDM.

[0003] Currently, most nuclear power units use the temperature displayed in the reactor duct temperature channel as the temperature of the power coil. However, the temperature displayed in the reactor duct temperature channel indicates the temperature of the reactor surface and cannot accurately represent the temperature of the power coil. Summary of the Invention

[0004] Therefore, it is necessary to provide a reactor control rod position control system capable of accurately determining the temperature of the power coil, as well as a power coil detection method, apparatus, and computer equipment to address the aforementioned technical problems.

[0005] In a first aspect, this application provides a rod position control system for reactor control rods, the system comprising:

[0006] A rod travel cover is fitted over the outside of the reactor control rods, and a moving channel is provided inside the rod travel cover for the reactor control rods to move.

[0007] A rod position measurement probe, fitted onto the outside of the rod travel cover, is used to measure the insertion depth of the reactor control rod in the reactor core;

[0008] The control rod drive mechanism includes multiple power coils, which are coaxially arranged and coaxially arranged with the rod position measuring probe. The multiple power coils are sleeved on the outside of the rod travel cover, and the rod position measuring probe is located above the multiple power coils. The power coils are used to drive the reactor control rods to reciprocate.

[0009] In one embodiment, the control rod drive mechanism further includes:

[0010] The drive rod is located in the moving channel within the rod travel cover and is connected to the reactor control rod; the drive rod is located above the reactor control rod and is coaxially arranged with the reactor control rod.

[0011] In one embodiment, the plurality of power coils are respectively a lifting coil, a transmission coil and a clamping coil arranged from top to bottom.

[0012] In one embodiment, the control rod drive mechanism further includes:

[0013] A plurality of transfer pins are circumferentially spaced around the axis of the drive rod, and a transfer coil is used to control the transfer pins to clamp the drive rod; and

[0014] Multiple clamping pins are located below the transmission pins, and the multiple clamping pins are circumferentially spaced around the axis of the drive rod. The clamping coil is used to control the clamping pins to clamp the drive rod.

[0015] In one embodiment, the system further includes:

[0016] A control cabinet for sending control current to multiple power coils.

[0017] Secondly, this application also provides a power coil detection method, applied to the above-mentioned reactor control rod position control system; the rod position measurement probe includes multiple measurement coils; the method includes:

[0018] Obtain the measured temperature of the plurality of measuring coils and the measured resistance value of any one of the power coils;

[0019] The current temperature of the rod position measuring probe is determined based on the measured temperature, and the current temperature of the rod position measuring probe is determined as the current temperature of the power coil.

[0020] Based on the current temperature of the power coil, the measured resistance value is converted into a current resistance value at a standard temperature, and the power coil is tested based on the current resistance value.

[0021] In one embodiment, the movement control process of the reactor control rods includes:

[0022] A first control current is continuously sent to the transmission coil so that the transmission coil controls the transmission pin claw to clamp the drive rod;

[0023] A second control current is continuously sent to the lifting coil so that the lifting coil controls the drive rod to move in the moving channel within the rod travel cover; wherein the movement of the drive rod will drive the reactor control rod to move.

[0024] When the reactor control rod moves to the preset position, a third control current is continuously sent to the clamping coil so that the clamping coil controls the clamping pin to clamp the drive rod, and the first control current is stopped being sent to the transfer coil, and the second control current is stopped being sent to the lifting coil.

[0025] In one embodiment, the method further includes:

[0026] Before sending the first control current to the transmission coil, the third control current is continuously sent to the clamping coil;

[0027] When the transmission pin clamps the drive rod, the third control current is stopped from being sent to the clamping coil.

[0028] Thirdly, this application also provides a power coil detection device for use in the above-mentioned reactor control rod position control system; the rod position measurement probe includes multiple measurement coils; the device includes:

[0029] The acquisition module is used to acquire the measured temperature of the plurality of measuring coils and the measured resistance value of any one of the power coils;

[0030] The determination module is used to determine the current temperature of the rod position measuring probe based on the measured temperature, and to determine the current temperature of the rod position measuring probe as the current temperature of the power coil;

[0031] A conversion module is used to convert the measured resistance value into a current resistance value at a standard temperature based on the current temperature of the power coil, and to detect the power coil based on the current resistance value.

[0032] Fourthly, this application also provides a computer device. The computer device includes a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the steps of the methods in any of the above embodiments.

[0033] The aforementioned reactor control rod position control system, as well as the power coil detection method, apparatus, and computer equipment, utilize multiple power coils coaxially distributed, and these power coils are also coaxially distributed with the rod position measurement probes. This ensures that when the reactor control rods are inserted into the reactor core, the temperatures of the different power coils are essentially the same, and the temperatures of the power coils and the rod position measurement probes are also essentially the same. The temperature of the power coils can be determined by measuring the temperature of the rod position measurement probes. Furthermore, because the current temperature of the rod position measurement probes obtained based on the measuring resistance of the measuring coils is relatively accurate, the accuracy of the determined current temperature of the power coils is high. This results in a more accurate determination of the current resistance value of the power coils at standard temperatures based on their current temperature, thus improving the reliability of power coil detection. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the position control system for reactor control rods in one embodiment;

[0035] Figure 2 This is a diagram of the disassembled reactor control rod position control system in one embodiment.

[0036] Figure 3 This is a schematic diagram showing the positional relationship between the power coil, the pin, and the drive rod in one embodiment.

[0037] Figure 4 This is a schematic diagram of the internal structure of component A in the reactor control rod position control system of one embodiment;

[0038] Figure 5 This is a schematic diagram of the lead connection of the power coil in one embodiment;

[0039] Figure 6 This is a schematic diagram of a power coil detection method in one embodiment;

[0040] Figure 7 This is a schematic diagram showing the distribution of measuring probes at various positions in the reactor and the current temperature in one embodiment;

[0041] Figure 8 This is a schematic diagram of a method for controlling the movement of reactor control rods in one embodiment;

[0042] Figure 9 This is a structural block diagram of a power coil detection device in one embodiment;

[0043] Figure 10 This is an internal structural diagram of a computer device in one embodiment.

[0044] Explanation of reference numerals in the attached figures:

[0045] 100: Rod travel cover; 200: Rod position measuring probe; 300: Control rod drive mechanism; 301: Lifting coil; 302: Transmission coil; 303: Clamping coil; 304: Drive rod; 305: Transmission pin claw; 306: Clamping pin claw. Detailed Implementation

[0046] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0047] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0050] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] It should be noted that an element is referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. An element is considered to be "connected" to another element, which may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0052] See Figure 1 and Figure 2 , Figure 1 This application illustrates a reactor control rod position control system according to one embodiment. Figure 2 for Figure 1 The diagram shown is a disassembled system diagram. One embodiment of this application provides a rod position control system including a rod travel cover 100, a rod position measuring probe 200, and a control rod drive mechanism 300. The rod travel cover 100 is fitted over the outside of the reactor control rods, and a movement channel for the reactor control rods is provided inside the rod travel cover 100. The rod position measuring probe 200 is fitted over the outside of the rod travel cover 100 and is used to measure the insertion depth of the reactor control rods in the reactor core. The control rod drive mechanism 300 includes multiple power coils, which are coaxially arranged, and the power coils are coaxially arranged with the rod position measuring probe 200. The multiple power coils are fitted over the outside of the rod travel cover 100, and the rod position measuring probe 200 is located above the multiple power coils. The power coils are used to drive the reactor control rods to reciprocate.

[0053] Optionally, the rod position measuring probe 200 may resemble a steel cylinder and may be, but is not limited to, a cylindrical structure with a length of 4 meters.

[0054] Optionally, the multiple power coils may include, but are not limited to, a lifting coil 301 (LC), a transfer coil 302 (Movable gripper, MG), and a clamping coil 303 (Stationary gripper, SG) arranged from top to bottom; from top to bottom means from the power coil furthest from the reactor core to the power coil closest to the reactor core. Similarly, the fact that the rod position measurement probe 200 is located above the multiple power coils means that the rod position measurement probe 200 is farther from the reactor core than the multiple power coils.

[0055] Optionally, such as Figure 3 and Figure 4 As shown, Figure 3 This is a schematic diagram showing the positional relationship between the power coil, the pin claw, and the drive rod. Figure 3 That is Figure 4 The diagram shows the internal structure of component A. In the diagram, 304 is the drive rod, 305 is the transmission pin, and 306 is the clamping pin. The control rod drive mechanism also includes drive rod 304, which is located in the moving channel within the rod travel cover 100 and connected to the reactor control rod. Drive rod 304 is located above the reactor control rod and is coaxially arranged with it.

[0056] Optionally, the control rod drive mechanism 300 controls the pin claw to clamp or release the drive rod 304 by energizing multiple power coils in its structure in a certain sequence, thereby driving the drive rod 304 to lift, lower, or remain stationary, thus realizing the action of lifting and inserting the reactor control rod.

[0057] Optionally, the power coil is sleeved on the outside of the rod travel cover 100, and the drive rod 304 is located in the moving channel inside the rod travel cover 100. At the same time, the reactor control rod is also located in this moving channel. The drive rod 304 is mechanically connected to the reactor control rod. By driving the drive rod 304 to move, the reactor control rod can be moved.

[0058] Optionally, the control rod drive mechanism 300 further includes: a plurality of transmission pins 305, which are circumferentially spaced around the axis of the drive rod 304, and a transmission coil 302 for controlling the transmission pins 305 to clamp the drive rod 304; and a plurality of clamping pins 306, located below the transmission pins 305, which are circumferentially spaced around the axis of the drive rod 304, and a clamping coil 303 for controlling the clamping pins 306 to clamp the drive rod 304.

[0059] Optionally, the transmission coil 302 controls the transmission pin 305 to clamp the drive rod 304 via the magnetic pole and armature; the clamping coil 303 controls the clamping pin 306 to clamp the drive rod 304 via the magnetic pole and armature.

[0060] Optionally, Figure 1 The system shown also includes a control cabinet for sending control current to the power coils. For example, Figure 5 As shown, Figure 5 This is a schematic diagram of the lead connection of the power coil. After exiting the structure, the lead of the power coil is terminated twice, inside and outside the nuclear island, before entering the control cabinet of the electrical plant and finally being terminated to the corresponding terminal block inside the control cabinet.

[0061] In the aforementioned reactor control rod position control system, since multiple power coils are coaxially distributed, and multiple power coils are coaxially distributed with rod position measurement probes, the temperatures of different power coils are basically the same when the reactor control rods are inserted into the reactor core. The temperatures of the power coils and the rod position measurement probes are also basically the same. The temperature of the power coils can be determined by measuring the temperature of the rod position measurement probes. Furthermore, because the current temperature of the rod position measurement probes obtained based on the measuring resistance of the measuring coils is relatively accurate, the accuracy of the determined current temperature of the power coils is high. This results in a more accurate determination of the current resistance value of the power coils at standard temperatures based on their current temperature, thus improving the reliability of power coil detection.

[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

[0064] In one embodiment, such as Figure 6 As shown, a method for detecting power coils is provided. This embodiment illustrates the application of this method to a control cabinet. In this embodiment, the method is applied to the above-mentioned reactor control rod position control system; the rod position measurement probe includes multiple measurement coils; the method includes the following steps:

[0065] S602. Obtain the measured temperature of multiple measuring coils and the measured resistance value of any one power coil.

[0066] Optionally, the multiple measuring coils include at least one primary coil, at least one secondary coil, and at least one auxiliary coil.

[0067] S604. Determine the current temperature of the rod position measuring probe based on the measured temperature, and set the current temperature of the rod position measuring probe as the current temperature of the power coil.

[0068] Optionally, the measured temperatures of all measuring coils can be input into the calculation formula for the current temperature of the rod position measuring probe, and the current temperature of the rod position measuring probe can be output. For example, the calculation formula for the current temperature of the rod position measuring probe can characterize the average value of the measured temperatures of all measuring coils.

[0069] Optionally, the current temperature T of the probe for determining the position of the rod is determined. cal After that, T can be placed cal This is determined to be the current temperature of the power coil. For example... Figure 7 As shown, Figure 7 This is a schematic diagram showing the distribution of measuring probes at various rod positions in the reactor and their current temperatures. For example, "N22 / K2 112" indicates that the current temperature of measuring probe N22 / K2 is 112℃.

[0070] S606. Based on the current temperature of the power coil, the measured resistance value is converted into the current resistance value at the standard temperature, and the power coil is tested based on the current resistance value.

[0071] Optionally, the measured resistance value of the power coil, the current temperature, and the standard temperature can be input into the relationship function between the resistance value of the power coil at the standard temperature and the resistance value at the measurement temperature, and the current resistance value of the power coil at the standard temperature can be output.

[0072] Optionally, for any given power coil, the standard resistance value of the power coil at a standard temperature is obtained. By comparing the current resistance value with the standard resistance value, the measurement reliability of the power coil can be tested. For example, if the difference between the current resistance value and the standard resistance value is within a preset range, the measurement result of the power coil is considered to be relatively reliable.

[0073] In the aforementioned power coil detection method, since multiple power coils are coaxially distributed and coaxially distributed with the rod position measurement probe, the temperatures of the different power coils are basically the same when the reactor control rods are inserted into the reactor core. The temperatures of the power coils and the rod position measurement probes are also basically the same. The temperature of the power coils can be determined by measuring the temperature of the rod position measurement probes. Furthermore, because the current temperature of the rod position measurement probes obtained based on the measurement resistance of the power coils is relatively accurate, the accuracy of the determined current temperature of the power coils is high. This results in a more accurate determination of the current resistance value of the power coils at standard temperatures based on their current temperature, thus improving the reliability of power coil detection.

[0074] In one embodiment, such as Figure 8 As shown, the movement control process of the reactor control rods includes:

[0075] S802, continuously send the first control current to the transmission coil so that the transmission coil controls the transmission pin claw to clamp the drive rod.

[0076] Optionally, in this embodiment, the control current is sent to the coil by the power module in the control cabinet.

[0077] Optionally, the power module in the control cabinet sends a first control current to the transmission coil according to the instructions of the control logic unit. After the transmission coil is energized, an electromagnetic field is generated around it according to the principle of electromagnetic induction. The electromagnetic field generated by the transmission coil passes through the pin claw housing, causing the transmission magnetic pole installed in the sealed housing to become magnetic. At the same time, the armature connected to the transmission pin claw is magnetized, and then attracts the transmission magnetic pole. During the process of the magnetic pole and the armature being attracted, the transmission pin claw moves with the armature, thereby rotating into the groove on the annular rod of the drive rod component and engaging with the tooth surface to complete the action of clamping the drive rod.

[0078] S804. A second control current is continuously sent to the lifting coil to cause the lifting coil control drive rod to move in the moving channel within the rod travel cover; wherein, the movement of the drive rod will drive the reactor control rod to move.

[0079] Optionally, when the drive rod is clamped by the transfer pin claw, the power module in the control cabinet sends a second control current to the lifting coil according to the instruction of the control logic unit. After the lifting coil is energized, an electromagnetic field is generated, which closes the gap between the lifting magnetic pole and the lifting armature. Under the action of electromagnetic force, the lifting magnetic pole drives the drive rod to move in the moving channel through the lifting armature. At the same time, due to the mechanical connection between the drive rod and the reactor control rod, the reactor control rod also moves along with the movement of the drive rod.

[0080] S806. When the reactor control rod moves to the preset position, a third control current is continuously sent to the clamping coil so that the clamping coil controls the clamping pin to clamp the drive rod, and the first control current is stopped being sent to the transmission coil and the second control current is stopped being sent to the lifting coil.

[0081] Optionally, when the reactor control rod moves to the preset position, the power module of the control cabinet continuously supplies a third control current to the clamping coil according to the instructions of the control logic unit. After the clamping coil is energized, it generates an electromagnetic field based on the principle of electromagnetic induction. This magnetic field magnetizes the clamping magnetic poles that cooperate with it, forming a magnetic attraction force. The magnetized clamping magnetic poles will generate an electromagnetic attraction force on the connected clamping armature. Under the action of this force, the clamping armature overcomes the elastic force of the return spring and moves towards the clamping magnetic pole and is attracted. When the clamping armature is attracted by the clamping magnetic pole, it will synchronously drive the clamping pin to rotate, so that it rotates into the annular groove on the drive rod and fits tightly with the groove tooth surface, thereby achieving the clamping and fixing of the drive rod.

[0082] Optionally, when the reactor control rod moves to a preset position, the second control current is stopped from being sent to the lifting coil to stop the movement of the reactor control rod, and when the clamping pin clamps the drive rod, the first control current is stopped from being sent to the transfer coil to release the drive rod, so that the drive rod is clamped only by the clamping pin.

[0083] In this embodiment, a first control current is continuously sent to the transfer coil, causing the transfer coil to control the transfer pins to clamp the drive rod; a second control current is continuously sent to the lifting coil, causing the lifting coil to control the drive rod to move within the movement channel of the rod travel cover; wherein, the movement of the drive rod will drive the reactor control rod to move; when the reactor control rod moves to a preset position, a third control current is continuously sent to the clamping coil, causing the clamping coil to control the clamping pins to clamp the drive rod, and the sending of the first control current to the transfer coil and the sending of the second control current to the lifting coil are stopped. In this embodiment, by sending different control currents to different power coils through the control cabinet, the movement process of the reactor control rod can be precisely controlled. Furthermore, by alternately clamping the drive rod with the transfer pins and clamping pins, the loss of control of the drive rod during movement can be avoided, effectively ensuring the safety of the reactor control rod during movement.

[0084] In some embodiments, the method further includes: continuously sending a third control current to the clamping coil before sending a first control current to the transmission coil; and stopping sending the third control current to the clamping coil when the transmission pin clamps the drive rod.

[0085] Optionally, before sending the first control current to the transfer coil, that is, before the reactor control rod moves, it is also necessary to keep the drive rod and the reactor control rod stationary. At this time, by sending the third control current to the clamping coil, the clamping pin can clamp the drive rod, thereby achieving the purpose of keeping the drive rod and the reactor control rod stationary.

[0086] Optionally, if the drive rod is clamped by the transfer pin claw, it indicates that the drive rod and the reactor control rod are about to move. At this time, it is necessary to release the drive rod by the clamping pin claw, and therefore, the third control current is stopped from being sent to the clamping coil.

[0087] In this embodiment, continuously sending a third control current to the clamping coil before sending the first control current to the transfer coil can ensure the safe position of the reactor control rod and prevent the reactor control rod from being suspended in the air. When the transfer pin clamps the drive rod, stopping the sending of the third control current to the clamping coil can ensure that the movement of the reactor control rod proceeds smoothly.

[0088] In one embodiment, another method for detecting a power coil is provided, the method comprising the following:

[0089] The system acquires the measured temperatures of multiple measuring coils and the measured resistance value of any one power coil. It inputs the measured temperatures of all measuring coils into the calculation formula for the current temperature of the rod-position measuring probe, outputting the current temperature of the probe. For the relationship function between the resistance value of the power coil at the standard temperature and its resistance value at the measured temperature, the measured resistance value of the power coil, the current temperature, and the standard temperature are input into this function to output the current resistance value of the power coil at the standard temperature. For any given power coil, the system acquires its standard resistance value at the standard temperature. By comparing the current resistance value with the standard resistance value, the measurement reliability of the power coil can be checked. For example, if the difference between the current resistance value and the standard resistance value is within a preset range, the measurement result of the power coil is considered relatively reliable.

[0090] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0091] Based on the same inventive concept, this application also provides a power coil detection device for implementing the power coil detection method described above. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations in one or more power coil detection device embodiments provided below can be found in the limitations of the power coil detection method described above, and will not be repeated here.

[0092] In one exemplary embodiment, such as Figure 9 As shown, a power coil detection device 900 is provided; the rod position measuring probe includes multiple measuring coils; the device includes: an acquisition module 901, a determination module 902, and a conversion module 903, wherein:

[0093] The acquisition module 901 is used to acquire the measured temperature of the plurality of measuring coils and the measured resistance value of any one of the power coils.

[0094] The determination module 902 is used to determine the current temperature of the rod position measuring probe based on the measured temperature, and to determine the current temperature of the rod position measuring probe as the current temperature of the power coil.

[0095] The conversion module 903 is used to convert the measured resistance value into a current resistance value at a standard temperature based on the current temperature of the power coil, and to detect the power coil based on the current resistance value.

[0096] In some embodiments, the power coil detection device 900 is specifically configured to continuously send a first control current to the transmission coil, so that the transmission coil controls the transmission pin claw to clamp the drive rod; continuously send a second control current to the lifting coil, so that the lifting coil controls the drive rod to move in the moving channel within the rod travel cover; wherein the movement of the drive rod will drive the reactor control rod to move; when the reactor control rod moves to a preset position, continuously send a third control current to the clamping coil, so that the clamping coil controls the clamping pin claw to clamp the drive rod, and stop sending the first control current to the transmission coil and stop sending the second control current to the lifting coil.

[0097] In some embodiments, the power coil detection device 900 is further configured to continuously send the third control current to the clamping coil before sending the first control current to the transmission coil; and to stop sending the third control current to the clamping coil when the transmission pin clamps the drive rod.

[0098] Each module in the aforementioned power coil detection device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of a computer device in software form, so that the processor can call and execute the operations corresponding to each module.

[0099] In one exemplary embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as follows: Figure 10 As shown, the computer device includes a processor, memory, input / output interface, communication interface, display unit, and input device. The processor, memory, and input / output interface are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interface. The processor provides computing and control capabilities. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage medium. The input / output interface is used for exchanging information between the processor and external devices. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, Near Field Communication (NFC), or other technologies. When executed by the processor, the computer program implements a power coil detection method.

[0100] Those skilled in the art will understand that Figure 10 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0101] In one embodiment, a computer device is also provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps in the above method embodiments.

[0102] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data must comply with relevant regulations.

[0103] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, artificial intelligence (AI) processors, etc., and are not limited to these.

[0104] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0105] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A control system for the position of reactor control rods, characterized in that, The system includes: A rod travel cover is fitted over the outside of the reactor control rods, and a moving channel is provided inside the rod travel cover for the reactor control rods to move. A rod position measurement probe, fitted onto the outside of the rod travel cover, is used to measure the insertion depth of the reactor control rod in the reactor core; The control rod drive mechanism includes multiple power coils, which are coaxially arranged and coaxially arranged with the rod position measuring probe. The multiple power coils are sleeved on the outside of the rod travel cover, and the rod position measuring probe is located above the multiple power coils. The power coils are used to drive the reactor control rods to reciprocate.

2. The system according to claim 1, characterized in that, The control rod drive mechanism further includes: The drive rod is located in the moving channel within the rod travel cover and is connected to the reactor control rod; the drive rod is located above the reactor control rod and is coaxially arranged with the reactor control rod.

3. The system according to claim 1, characterized in that, The multiple power coils are arranged from top to bottom as a lifting coil, a transmission coil, and a clamping coil.

4. The system according to any one of claims 2 or 3, characterized in that, The control rod drive mechanism further includes: A plurality of transfer pins are circumferentially spaced around the axis of the drive rod, and a transfer coil is used to control the transfer pins to clamp the drive rod; and Multiple clamping pins are located below the transmission pins, and the multiple clamping pins are circumferentially spaced around the axis of the drive rod. The clamping coil is used to control the clamping pins to clamp the drive rod.

5. The system according to claim 1, characterized in that, The system also includes: A control cabinet for sending control current to multiple power coils.

6. A method for detecting a power coil, characterized in that, A rod position control system applied to reactor control rods according to any one of claims 1 to 5; the rod position measurement probe includes multiple measurement coils; the method includes: Obtain the measured temperature of the plurality of measuring coils and the measured resistance value of any one of the power coils; The current temperature of the rod position measuring probe is determined based on the measured temperature, and the current temperature of the rod position measuring probe is determined as the current temperature of the power coil. Based on the current temperature of the power coil, the measured resistance value is converted into a current resistance value at a standard temperature, and the power coil is tested based on the current resistance value.

7. The method according to claim 6, characterized in that, The movement control process of the reactor control rods includes: A first control current is continuously sent to the transmission coil so that the transmission coil controls the transmission pin claw to clamp the drive rod; A second control current is continuously sent to the lifting coil so that the lifting coil controls the drive rod to move in the moving channel within the rod travel cover; wherein the movement of the drive rod will drive the reactor control rod to move. When the reactor control rod moves to the preset position, a third control current is continuously sent to the clamping coil so that the clamping coil controls the clamping pin to clamp the drive rod, and the first control current is stopped being sent to the transfer coil, and the second control current is stopped being sent to the lifting coil.

8. The method according to claim 7, characterized in that, The method further includes: Before sending the first control current to the transmission coil, the third control current is continuously sent to the clamping coil; When the transmission pin clamps the drive rod, the third control current is stopped from being sent to the clamping coil.

9. A power coil detection device, characterized in that, A rod position control system applied to reactor control rods according to any one of claims 1 to 5; the rod position measurement probe includes multiple measurement coils; the device includes: The acquisition module is used to acquire the measured temperature of the plurality of measuring coils and the measured resistance value of any one of the power coils; The determination module is used to determine the current temperature of the rod position measuring probe based on the measured temperature, and to determine the current temperature of the rod position measuring probe as the current temperature of the power coil; A conversion module is used to convert the measured resistance value into a current resistance value at a standard temperature based on the current temperature of the power coil, and to detect the power coil based on the current resistance value.

10. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 6 to 8.

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