Gate valve misoperation warning device and method

Abstract

The application relates to a gate valve misoperation alarm device and method. The device comprises a limit sensing signal receiving module, a gate valve signal receiving module and a misoperation alarm module. The limit sensing signal receiving module is used for receiving a first limit signal of a transmission system in a nuclear fuel loading and unloading operation process. The gate valve signal receiving module is used for receiving a second limit signal of a gate valve state in the nuclear fuel loading and unloading operation process. The misoperation alarm module is used for sending a gate valve misoperation alarm signal when the first limit signal indicates that the transmission system tipping machine is not vertical and the second limit signal indicates that the gate valve is open. The alarm device of the scheme can timely send an alarm in the case of gate valve misoperation, so as to remind the operator to stop operation, improve the intrinsic safety of the equipment and avoid the risk of equipment damage.

Description

Technical Field

[0001] This application relates to the field of safety production technology, and in particular to a gate valve misoperation alarm device and solution. Background Technology

[0002] The transfer system trolley and PTR728VB gate valve are key equipment for nuclear fuel loading and unloading operations in nuclear power plants. During each major overhaul, the PTR728VB gate valve needs to be opened and closed multiple times in coordinated operation. Before closing, it must be confirmed that the transfer system tilter is vertical in the transfer pool. Failure to correctly confirm the tilter's status poses a risk of damaging the gate valve and transfer trolley, resulting in irreversible damage.

[0003] However, under current operating conditions, professionals can only confirm the status of the equipment by observing the bottom of the transfer tank (with a drop of approximately 12.5 meters and relatively dim lighting) and then informing the operators of the results. Due to the dim lighting, there is a human error factor present in verifying the equipment status or in communication failures, leading to misoperation of the gate valve and posing a safety risk to the equipment. Summary of the Invention

[0004] Therefore, it is necessary to provide a gate valve misoperation alarm device that can ensure the safety of equipment during the nuclear fuel loading and unloading process, addressing the aforementioned technical problems.

[0005] This application provides a gate valve misoperation alarm device and method, comprising: the device includes a limit sensor signal receiving module, a gate valve signal receiving module and a misoperation alarm module, wherein the misoperation alarm module is connected to the limit sensor signal receiving module and the gate valve signal receiving module respectively;

[0006] The limit sensor signal receiving module is used to receive the first limit signal of the transmission system during the nuclear fuel loading and unloading operation. The gate valve signal receiving module is used to receive the second limit signal of the gate valve status during the nuclear fuel loading and unloading operation. The misoperation alarm module is used to issue a gate valve misoperation alarm signal when the first limit signal indicates that the tilting machine of the transmission system is not vertical and the second limit signal indicates that the gate valve is not open.

[0007] In one embodiment, the misoperation alarm module is further configured to issue a warning signal prohibiting operation of the gate valve when the first limit signal indicates that the tilting machine of the transmission system is not vertical and the second limit signal indicates that the gate valve is open.

[0008] In one embodiment, the misoperation alarm module is further configured to issue an operable gate valve prompt signal when the first limit signal indicates that the tilting machine of the transmission system is vertical, and to indicate the gate valve status according to the second limit signal.

[0009] In one embodiment, the gate valve misoperation alarm device further includes a power module, which includes a power switch and an external power interface.

[0010] In one embodiment, the power module further includes an internal battery.

[0011] In one embodiment, the gate valve misoperation alarm device further includes an audible and visual alarm module. Specifically, the misoperation alarm module is used to issue a gate valve misoperation alarm signal through the audible and visual alarm module when the first limit signal indicates that the tilting machine of the transmission system is not vertical and the second limit signal indicates that the gate valve is open.

[0012] In one embodiment, the gate valve misoperation alarm device further includes a status indicator light module, which includes a device status indicator light, a charging status indicator light, an alarm indicator light, and a relay indicator light.

[0013] In one embodiment, the gate valve misoperation alarm device further includes a status display, which is connected to the limit sensor signal receiving module and the gate valve signal receiving module respectively, and is used to display the status of the tilting machine and the gate valve in the transmission system.

[0014] In one embodiment, the gate valve misoperation alarm device further includes a memory for storing limit signals, operation signals, and gate valve misoperation alarm signals.

[0015] In one embodiment, the gate valve misoperation alarm device further includes a magnetic module for fixing the gate valve misoperation alarm device to the wall.

[0016] The aforementioned gate valve misoperation alarm device includes a limit sensor signal receiving module, a gate valve signal receiving module, and a misoperation alarm module. The misoperation alarm module is connected to both the limit sensor signal receiving module and the gate valve signal receiving module. The limit sensor signal receiving module receives a first limit signal from the transmission system during nuclear fuel loading and unloading operations. The gate valve signal receiving module receives a second limit signal indicating the gate valve status during nuclear fuel loading and unloading operations. The misoperation alarm module issues a gate valve misoperation alarm signal when the first limit signal indicates that the transmission system tilting machine is not vertical and the second limit signal indicates that the gate valve is not open. The alarm device of this application promptly issues an alarm in the event of gate valve misoperation, thereby reminding operators to stop operation, improving the inherent safety of the equipment, and avoiding the risk of equipment damage.

[0017] This application also provides a gate valve malfunction alarm method, the method comprising:

[0018] Receive the first limit signal of the transmission system during the nuclear fuel loading and unloading operation, and the second limit signal of the gate valve status during the nuclear fuel loading and unloading operation;

[0019] If the first limit signal indicates that the tilting machine of the transmission system is not upright and the second limit signal indicates that the gate valve is not open, a gate valve misoperation alarm signal is issued.

[0020] In one embodiment, the method further includes:

[0021] When the first limit signal indicates that the tilting machine of the transmission system is not upright and the second limit signal indicates that the gate valve is open, a warning signal prohibiting operation of the gate valve is issued.

[0022] In one embodiment, the method further includes:

[0023] When the first limit signal indicates that the tilting machine of the transmission system is vertical, an operation gate valve prompt signal is issued, and the gate valve status is indicated according to the second limit signal.

[0024] The aforementioned gate valve misoperation alarm method receives a first limit signal from the transmission system during nuclear fuel loading and unloading operations, as well as a second limit signal indicating the gate valve's status during the same operations. When the first limit signal indicates the transmission system tilting mechanism is not vertical, and the second limit signal indicates the gate valve is not open, a gate valve misoperation alarm signal is issued, effectively preventing gate valve misoperation during fuel loading and unloading. This alarm method, through the scheme described in this application, promptly issues an alarm in the event of gate valve misoperation, thereby reminding operators to stop operations, improving the inherent safety of the equipment, and avoiding the risk of equipment damage. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the gate valve misoperation alarm device in one embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the gate valve misoperation alarm device in another embodiment of this application;

[0028] Figure 3 This is a schematic diagram of the gate valve misoperation alarm device in another embodiment of this application;

[0029] Figure 4 This is a schematic diagram of the display interface of the gate valve misoperation alarm device in one embodiment of this application;

[0030] Figure 5 This is a schematic diagram of the display interface of the gate valve misoperation alarm device in another embodiment of this application;

[0031] Figure 6 This is a schematic diagram of the display interface of the gate valve misoperation alarm device in another embodiment of this application;

[0032] Figure 7 This is a schematic diagram of the gate valve misoperation alarm device in another embodiment of this application;

[0033] Figure 8 This is a flowchart illustrating a gate valve malfunction alarm method in one embodiment of this application;

[0034] Figure 9 This is a flowchart illustrating a gate valve malfunction alarm method in another embodiment of this application. Detailed Implementation

[0035] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0037] It is understood that the terms "first," "second," etc., used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0038] It is understood that the term "connection" in the following embodiments should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have electrical signal or data transmission with each other.

[0039] It is understandable that "at least one" refers to one or more, and "multiple" refers to two or more. "At least a part of an element" refers to part or all of an element.

[0040] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising / including” or “having,” etc., specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. Meanwhile, the term “and / or” as used in this specification includes any and all combinations of the associated listed items.

[0041] The gate valve misoperation alarm device provided in this application embodiment is used to alarm for gate valve misoperation during nuclear fuel loading and unloading operations. The transfer system trolley and PTR728VB gate valve are key equipment for nuclear power plant nuclear fuel loading and unloading operations. During each major overhaul, professional operators need to open and close the PTR728VB gate valve multiple times. Before closing, it must be confirmed that the transfer system tilting machine is vertical in the transfer pool. If the tilting machine status is not correctly confirmed, there is a risk of damage to the gate valve and transfer trolley, resulting in irreversible risks.

[0042] Please see Figure 1 This application provides a gate valve misoperation alarm device, including: a limit sensor signal receiving module 101, a gate valve signal receiving module 102, and a misoperation alarm module 103. The misoperation alarm module 103 is connected to the limit sensor signal receiving module 101 and the gate valve signal receiving module 102 respectively. The limit sensor signal receiving module 102 is used to receive a first limit signal of the transmission system during nuclear fuel loading and unloading operations. The gate valve signal receiving module 102 is used to receive a second limit signal of the gate valve status during nuclear fuel loading and unloading operations. The misoperation alarm module 103 is used to issue a gate valve misoperation alarm signal when the first limit signal indicates that the tilting machine of the transmission system is not vertical and the second limit signal indicates that the gate valve is not open.

[0043] Specifically, the transfer system during nuclear fuel loading and unloading operations includes transfer trolleys and tilting machines. Transfer trolleys are responsible for safely transporting nuclear fuel assemblies (new or spent fuel) between the fuel building, reactor building, or spent fuel pool of a nuclear power plant. They typically travel along fixed tracks, are motor-driven, and can be manually or automatically controlled. Tilting machines can turn vertical fuel assemblies (such as those removed from transfer trolleys or storage racks) to a horizontal position for loading into transport containers or testing equipment. They slowly tilt the fuel assemblies (usually 90° or 180°) using hydraulic or motor-driven mechanisms. Gate valves are used to separate the fuel pool from other areas (such as reactor chambers or transfer channels) to prevent pool water leakage or cross-contamination. These are mostly pneumatically or hydraulically driven gate valves or butterfly valves.

[0044] During the operation, the transfer trolley moves spent fuel assemblies from the reactor building to the edge of the fuel building's pool. A gate valve opens, connecting the reactor building and the fuel building's pool (in wet transfer cases). A tilting machine receives the vertically positioned fuel assemblies and flips them horizontally for loading into transport containers or testing equipment. After the transfer is complete, the gate valve closes, isolating the two areas; the transfer trolley returns to its standby position.

[0045] When the tilting machine of the transmission system is not upright (the transmission trolley may not be fully transmitted to the fuel plant), if the gate valve is closed (there is a certain space between the gate valve and the transmission trolley), the transmission trolley or the gate valve may be damaged. Therefore, the solution in this application can be used to provide an alarm for this process.

[0046] The limit sensor signal receiving module 101 can receive limit signals from the tilting machine of the transmission system. Limit signals can be represented by 0 and 1. For example, 0 indicates the tilting machine is not vertical, meaning the transmission trolley may not have been fully transferred to the fuel plant. 1 indicates the tilting machine is vertical, meaning the transmission trolley has been fully transferred to the fuel plant. The gate valve signal receiving module 102 can receive a second limit signal from the gate valve status. The second limit signal can also be represented by 0 and 1, with 0 indicating the gate valve is open and 1 indicating it is not open. The misoperation alarm module 103 issues an alarm by receiving the first and second limit signals. If the first limit signal indicates the tilting machine is not vertical and the second limit signal indicates the gate valve is not open, it means the operator has mistakenly opened the gate valve before the transfer was completed. In this case, a gate valve misoperation alarm signal is issued. Specifically, the misoperation alarm module 103 issues an alarm when the signal from the limit sensor signal receiving module 101 is 0 and the signal from the gate valve signal receiving module 102 is 1.

[0047] In one embodiment, the misoperation alarm module 103 is further configured to issue a warning signal prohibiting the operation of the gate valve when the first limit signal indicates that the tilting machine of the transmission system is not vertical and the second limit signal indicates that the gate valve is open. This situation indicates that the current transmission is not in place, but the operator of the gate valve has not operated the gate valve. At this time, the warning signal prohibiting the operation of the gate valve is issued to remind the operator not to close the gate valve. That is, the misoperation alarm module 103 issues the warning signal prohibiting the operation of the gate valve when the signal received from the limit sensor signal receiving module 101 is 0 and the signal received from the gate valve signal receiving module 102 is 0.

[0048] In one embodiment, the misoperation alarm module 103 is further configured to, when the first limit signal indicates that the tilting machine of the transmission system is vertical, issue an operable gate valve prompt signal and indicate the gate valve status according to the second limit signal. This situation indicates that the current transmission is in place, and the operator of the gate valve can operate the gate valve. At this time, an operable gate valve prompt signal is issued, and the gate valve status is indicated according to the second limit signal. That is, when the misoperation alarm module 103 receives a signal of 1 from the limit sensor signal receiving module 101, it issues an operable gate valve prompt signal and indicates the gate valve status according to the second limit signal.

[0049] The aforementioned gate valve misoperation alarm device includes a limit sensor signal receiving module 101, a gate valve signal receiving module 102, and a misoperation alarm module 103. The misoperation alarm module 103 is connected to both the limit sensor signal receiving module 101 and the gate valve signal receiving module 102. The limit sensor signal receiving module 101 receives a first limit signal from the transmission system during nuclear fuel loading and unloading operations. The gate valve signal receiving module 102 receives a second limit signal indicating the gate valve status during nuclear fuel loading and unloading operations. The misoperation alarm module 103 issues a gate valve misoperation alarm signal when the limit signal indicates that the transmission system tilting machine is not vertical and the operation signal indicates that the operator has not opened the gate valve. The alarm device of this application promptly issues an alarm in the event of gate valve misoperation, thereby reminding the operator to stop operation, improving the inherent safety of the equipment, and avoiding the risk of equipment damage.

[0050] In one embodiment, the gate valve misoperation alarm device further includes a power module, which comprises a power switch and an external power interface. The power module supplies power to the gate valve misoperation alarm device. The external power interface can be connected to an external power source to power the alarm device, while the internal battery can directly power the alarm device. The power switch can control the opening and closing of the gate valve misoperation alarm device when powered by the internal battery. The external power source can be a 24VDC 3W power supply. In another embodiment, the power module also includes an internal battery, which can independently power the gate valve misoperation alarm device. The internal battery can be a lithium battery. Of course, other types of external power sources and internal batteries can also be used; no limitation is made here. In this embodiment, the power module effectively supplies power to the device, ensuring its availability.

[0051] In one embodiment, the gate valve misoperation alarm device further includes an audible and visual alarm module. Specifically, the misoperation alarm module is used to issue a gate valve misoperation alarm signal when the first limit signal indicates that the tilting machine of the transmission system is not vertical and the second limit signal indicates that the gate valve is open. Figure 2As shown, the misoperation alarm module 103 is connected to the audible and visual alarm module 104 and controls the operation of the audible and visual alarm module 104. After the alarm is triggered, the misoperation alarm module 103 can specifically use the audible and visual alarm module 104 to provide an alarm in the form of audible and visual prompts, thereby significantly improving the alarm effect and reminding the operator of misoperation.

[0052] In one embodiment, the gate valve misoperation alarm device further includes a status indicator light module, which includes a device status indicator light, a charging status indicator light, an alarm indicator light, and a relay indicator light. The device status indicator light indicates whether the gate valve misoperation alarm device is in normal working condition. The charging status indicator light displays the charging status of the internal battery. The alarm indicator light indicates the activation status of the device's audible and visual alarm module. The relay indicator light indicates the relay output status of the device. In one embodiment, the status indicators for each type of indicator light can be found in Table 1 below:

[0053]

[0054] In this embodiment, the various status indicator lights of the status indicator light module can effectively inform the operator of the device status, thereby ensuring that the device works normally.

[0055] In one embodiment, such as Figure 3 As shown, the gate valve misoperation alarm device also includes a status display 104, which is connected to the limit sensor signal receiving module 101 and the gate valve signal receiving module 102, respectively, and is used to display the status of the tilting machine and the gate valve in the transmission system. The status display 104 can display the corresponding tilting machine status and gate valve status on the display screen according to the signals sent by the limit sensor signal receiving module 101 and the gate valve signal receiving module 102, and issue corresponding interface prompts according to the status settings. When the tilting machine of the transmission system is not upright, once a gate valve closing operation is performed, the alarm device turns red and emits an alarm sound, allowing the operator to stop the operation immediately. The display interface of the status display 104 at this time can be referenced... Figure 3 As shown, the interface background color can be displayed in red. When the tilting machine of the transmission system is not upright and the gate valve is not closed, the status display 104 interface can be viewed as follows. Figure 4 As shown, the alarm device has a yellow interface, which operators can visually observe as a warning to prohibit operation of the gate valve. When the tilting machine of the transmission system is vertical, the gate valve can be operated normally; the status display interface can be found in the image. Figure 5 As shown, the alarm device has a green interface, which also displays the gate valve's status as open or closed. In this embodiment, the status display provides a more intuitive view of the gate valve's status during operation, ensuring the alarm's effectiveness.

[0056] In one embodiment, the gate valve misoperation alarm device further includes a memory for storing limit signals, operation signals, and gate valve misoperation alarm signals. The memory can save the corresponding operation history, allowing for subsequent tracing of the operation history based on the stored data, ensuring effective recording. Operators can then... Figure 4-6 On the display screen, you can click the record query button using touch to query the corresponding historical data.

[0057] In one embodiment, the gate valve misoperation alarm device further includes a magnetic module for fixing the gate valve misoperation alarm device to the wall. By using the magnetic module to fix the gate valve misoperation alarm device to the wall, operators can more conveniently check the gate valve's status information from the wall.

[0058] In one embodiment, the gate valve misoperation alarm device includes modules such as a limit sensor signal receiving module 101, a gate valve signal receiving module 102, a misoperation alarm module 103, an audible and visual alarm module 104, a status display 105, a memory, and a magnetic module. The limit sensor signal receiving module 101 receives a first limit signal from the transmission system during nuclear fuel loading and unloading operations. The gate valve signal receiving module 102 receives a second limit signal indicating the gate valve status during nuclear fuel loading and unloading operations. The misoperation alarm module 103 issues a gate valve misoperation alarm signal when the first limit signal indicates that the transmission system tilting machine is not vertical and the second limit signal indicates that the gate valve is not open. This gate valve misoperation alarm signal can be issued through the audible and visual alarm module 104. Conversely, when the first limit signal indicates that the transmission system tilting machine is not vertical and the second limit signal indicates that the gate valve is open, a warning signal prohibiting gate valve operation is issued. When the first limit signal indicates that the tilting machine of the transmission system is vertical, an operable gate valve indication signal is issued, and the gate valve status is indicated according to the second limit signal. The status display 105 is connected to both the limit sensor signal receiving module and the gate valve signal receiving module to display the tilting machine status and the gate valve status. The memory stores the limit signals, operating signals, and gate valve misoperation alarm signals. The magnetic module is used to fix the gate valve misoperation alarm device to the wall.

[0059] In one embodiment, the three-view drawing of the mechanical appearance and dimensions of the gate valve misoperation alarm device can be referenced. Figure 7 As shown, its external components include a power switch 701, an external interface 702, a magnetic switch 703, and a status indicator light 704. The device also includes a power supply, a screen, input and output modules. The performance parameters of the gate valve misoperation alarm device are shown in Table 2 below.

[0060]

[0061] Figure 7 The terminal definitions for the external interface 702, which is the gate valve misoperation alarm device, can be found in Table 3 below:

[0062]

[0063] This application also provides a method for alarming gate valve malfunctions, such as... Figure 8 As shown, the method includes:

[0064] Step 801: Receive the first limit signal of the transmission system during the nuclear fuel loading and unloading operation, and the second limit signal of the gate valve status during the nuclear fuel loading and unloading operation.

[0065] Step 803: If the first limit signal indicates that the tilting machine of the transmission system is not vertical and the second limit signal indicates that the gate valve is not open, a gate valve misoperation alarm signal is issued.

[0066] Specifically, the transfer system during nuclear fuel loading and unloading operations includes a transfer trolley and a tilting machine. The transfer trolley is used to transport nuclear fuel, and the tilting machine is used to dump nuclear fuel. If the tilting machine is not upright (the transfer trolley may not have been fully transferred to the fuel building), and a gate valve closing operation is performed (there is some space between the gate valve and the transfer trolley), the transfer trolley or the gate valve may be damaged. Therefore, the solution proposed in this application can provide an alarm for this process. Specifically, the method of this application uses a processor on a gate valve misoperation alarm device. The processor can receive limit signals from the tilting machine of the transfer system. These limit signals can be represented by 0 and 1. For example, 0 indicates that the tilting machine is not upright, and the transfer trolley may not have been fully transferred to the fuel building. 1 indicates that the tilting machine is upright, and the transfer trolley has been fully transferred to the fuel building. Simultaneously, it receives a second limit signal from the gate valve status. This second limit signal can also be represented by 0 and 1, where 0 indicates that the gate valve is open, and 1 indicates that the gate valve is not open. The processor identifies alarm scenarios by receiving a first limit signal and a second limit signal. If the first limit signal indicates that the tilting machine of the transmission system is not vertical and the second limit signal indicates that the gate valve is not open, it means that the operator of the gate valve has mistakenly opened the gate valve when the transmission is not in place. At this time, a gate valve misoperation alarm signal is issued, that is, an alarm is issued when the received first limit signal is 0 and the second limit signal is 1.

[0067] In one embodiment, the misoperation alarm module 103 is further configured to issue a warning signal prohibiting the operation of the gate valve when the first limit signal indicates that the tilting machine of the transmission system is not vertical and the second limit signal indicates that the gate valve is open. This situation indicates that the current transmission is not in place, but the operator of the gate valve has not operated the gate valve. At this time, the warning signal prohibiting the operation of the gate valve is issued to remind the operator not to close the gate valve. That is, the misoperation alarm module 103 issues the warning signal prohibiting the operation of the gate valve when the signal received from the limit sensor signal receiving module 101 is 0 and the signal received from the gate valve signal receiving module 102 is 0.

[0068] In one embodiment, the misoperation alarm module 103 is further configured to, when the first limit signal indicates that the tilting machine of the transmission system is vertical, issue an operable gate valve prompt signal and indicate the gate valve status according to the second limit signal. This situation indicates that the current transmission is in place, and the operator of the gate valve can operate the gate valve. At this time, an operable gate valve prompt signal is issued, and the gate valve status is indicated according to the second limit signal. That is, when the misoperation alarm module 103 receives a signal of 1 from the limit sensor signal receiving module 101, it issues an operable gate valve prompt signal and indicates the gate valve status according to the second limit signal.

[0069] In one embodiment, the gate valve malfunction alarm method of this application is as follows: Figure 9 As shown, the process includes: Step 902, receiving a first limit signal from the transmission system during nuclear fuel loading and unloading operations, and a second limit signal indicating the gate valve status during nuclear fuel loading and unloading operations. Step 904, determining whether the first limit signal indicates that the transmission system tilting machine is vertical. If the first limit signal indicates that the transmission system tilting machine is vertical, proceed to step 906, issuing a prompt signal indicating that the gate valve is operable, and indicating the gate valve status according to the second limit signal. If the first limit signal indicates that the transmission system tilting machine is not vertical, proceed to step 908, determining whether the second limit signal indicates that the gate valve is open. If the second limit signal indicates that the gate valve is not open, proceed to step 910, issuing a gate valve misoperation alarm signal. If the second limit signal indicates that the gate valve is open, proceed to step 912, issuing a prompt signal prohibiting gate valve operation.

[0070] The aforementioned gate valve misoperation alarm method receives a first limit signal from the transmission system during nuclear fuel loading and unloading operations, as well as a second limit signal indicating the gate valve's status during the same operations. When the first limit signal indicates the transmission system tilting mechanism is not vertical, and the second limit signal indicates the gate valve is not open, a gate valve misoperation alarm signal is issued, effectively preventing gate valve misoperation during fuel loading and unloading. This alarm method, through the scheme described in this application, promptly issues an alarm in the event of gate valve misoperation, thereby reminding operators to stop operations, improving the inherent safety of the equipment, and avoiding the risk of equipment damage.

[0071] In one embodiment, the gate valve misoperation alarm method further includes: storing the limit signal, the operation signal, and the gate valve misoperation alarm signal. The memory stores the corresponding operation history, allowing subsequent tracing of the operation history based on the stored data, ensuring effective recording. This application can be implemented using a gate valve misoperation alarm device, allowing operators to... Figure 3-5 On the display screen of the gate valve misoperation alarm device, you can click the record query button via touch to query the corresponding historical data.

[0072] 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.

[0073] 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.

[0074] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiments or examples.

[0075] 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.

[0076] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this 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 gate valve misoperation alarm device, characterized in that, The device is used in nuclear fuel loading and unloading operations at nuclear power plants and includes a limit sensor signal receiving module, a gate valve signal receiving module, a misoperation alarm module, and a status display. The misoperation alarm module is connected to the limit sensor signal receiving module and the gate valve signal receiving module, respectively, and the status display is connected to the limit sensor signal receiving module and the gate valve signal receiving module, respectively. The limit sensor signal receiving module is used to receive the first limit signal of the tilting machine of the transmission system during the nuclear fuel loading and unloading operation, and the gate valve signal receiving module is used to receive the second limit signal of the gate valve status during the nuclear fuel loading and unloading operation. The status display is used to show the status of the tilting machine in the transmission system and the status of the gate valve; The maloperation alarm module is used to issue a gate valve maloperation alarm signal when the first limit signal indicates that the tilting machine of the transmission system is not vertical and the second limit signal indicates that the gate valve is not open. The misoperation alarm module is also used to issue a prompt signal prohibiting operation of the gate valve when the first limit signal indicates that the tilting machine of the transmission system is not vertical and the second limit signal indicates that the gate valve has been opened. The maloperation alarm module is also used to issue a prompt signal indicating that the gate valve can be operated when the first limit signal indicates that the tilting machine of the transmission system is vertical, and to indicate the status of the gate valve according to the second limit signal.

2. The gate valve misoperation alarm device according to claim 1, characterized in that, It also includes an audible and visual alarm module. When the misoperation alarm module issues a gate valve misoperation alarm signal, the audible and visual alarm module will issue an audible and visual prompt.

3. The gate valve misoperation alarm device according to claim 1 or 2, characterized in that, It also includes a memory for storing the first limit signal, the second limit signal, and the gate valve malfunction alarm signal.

4. The gate valve misoperation alarm device according to claim 1 or 2, characterized in that, It also includes a magnetic module, which is used to fix the gate valve misoperation alarm device to the wall.

5. A gate valve malfunction alarm method, characterized in that, Malfunction alarms for gate valves applied in nuclear fuel loading and unloading operations at nuclear power plants include: Receive the first limit signal of the tilting machine of the transmission system during nuclear fuel loading and unloading operations, and the second limit signal of the gate valve status during nuclear fuel loading and unloading operations; If the first limit signal indicates that the tilting machine of the transmission system is not vertical and the second limit signal indicates that the gate valve is not open, a gate valve misoperation alarm signal is issued. When the first limit signal indicates that the tilting machine of the transmission system is not vertical and the second limit signal indicates that the gate valve is open, a prompt signal prohibiting operation of the gate valve is issued; When the first limit signal indicates that the tilting machine of the transmission system is vertical, a prompt signal indicating that the gate valve can be operated is issued, and the gate valve status is indicated according to the second limit signal.

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