A system, method, and storage medium for preventing accidental discharge of water from a high-temperature reactor monitoring tank.

Abstract

This invention relates to the field of nuclear power plant liquid waste treatment technology, and discloses a system, method, and storage medium for preventing accidental discharge from a high-temperature reactor monitoring tank. The invention installs flow detection devices before and after the first discharge valve, and dual radioactive monitoring devices on the discharge pipeline. On the one hand, by comparing the flow deviation before and after the valve, pipeline leaks or valve malfunctions can be detected in a timely manner. On the other hand, the dual radioactive redundancy monitoring ensures that protection is immediately triggered if any monitoring point exceeds the standard. Any abnormality in either device automatically closes the discharge valve and opens the return valve, diverting the discharged medium (i.e., substandard water) back to the monitoring tank. This invention constructs a closed-loop protection mechanism of real-time monitoring, automatic judgment, and interlocked return during the discharge process, fundamentally eliminating the risk of accidental discharge due to abnormalities such as pipeline leaks or excessive radioactivity, significantly improving the safety and reliability of the high-temperature reactor liquid waste treatment system's monitoring tank discharge operation.

Description

Technical Field

[0001] This invention relates to the field of liquid waste treatment technology for nuclear power plants, specifically to a system, method, and storage medium for preventing accidental discharge of water from a high-temperature reactor monitoring tank. Background Technology

[0002] Liquid waste treatment systems are used to treat radioactive wastewater generated during the operation of high-temperature reactors (HTGRs). These systems typically include evaporation, filtration, and monitoring / storage. HTGRs usually have two monitoring tanks to temporarily store treated wastewater that meets standards; the treated wastewater is then discharged after passing monitoring.

[0003] In existing technologies, the discharge operation of monitoring water tanks mainly relies on manual approval and control. Specifically, operators need to submit a discharge application based on the liquid level, and after passing chemical sampling analysis and approval from relevant management departments, the operators manually start the discharge pump and open the discharge valve to complete the discharge of stored water.

[0004] However, this management model, which relies on manual operation, carries a significant risk of misoperation. For example, if the emission process is not fully implemented or there are oversights in the approval process, unauthorized or unmet conditions may still lead to accidental emissions. For nuclear power plants, such events could trigger nuclear power plant operational incidents, posing serious nuclear safety hazards.

[0005] Therefore, it is necessary to design a well-structured and tightly controlled monitoring tank discharge scheme to effectively prevent accidental discharge and improve the safety and reliability of discharge operations. Summary of the Invention

[0006] This invention provides a system, method, and storage medium for preventing accidental discharge of a high-temperature reactor monitoring water tank, in order to solve the technical problem that the operation of monitoring water tank discharge in the prior art relies on manual approval and manual control, and cannot monitor and automatically handle abnormal situations such as pipeline leakage and excessive radioactivity during the discharge process, resulting in the risk of accidental discharge.

[0007] In a first aspect, the present invention provides a high-temperature reactor monitoring water tank anti-misoperation discharge system, comprising: a monitoring water tank with a discharge pipe; a first discharge valve disposed on the discharge pipe; a first flow detection device and a second flow detection device disposed on the discharge pipe before and after the first discharge valve, respectively; a first radioactivity monitoring device and a second radioactivity monitoring device disposed on the discharge pipe; a return pipe connected at one end to the discharge pipe and at the other end to the monitoring water tank, the return pipe being provided with a return valve; and a control unit connected to the first discharge valve, the first flow detection device, the second flow detection device, the first radioactivity monitoring device, the second radioactivity monitoring device, and the return valve, wherein the control unit is used to: compare the readings of the first flow detection device and the second flow detection device, and when the deviation between the two exceeds a first threshold, control the first discharge valve to close and control the return valve to open; read the readings of the first radioactivity monitoring device and the second radioactivity monitoring device, and when either reading exceeds a second threshold, control the first discharge valve to close and control the return valve to open.

[0008] This invention enables real-time monitoring of the entire discharge process by installing flow detection devices before and after the first discharge valve and dual radioactive monitoring devices on the discharge pipeline. On one hand, comparing the flow deviation before and after the valve allows for timely detection of pipeline leaks or valve malfunctions. On the other hand, the dual radioactive redundant monitoring ensures that any exceeding of limits at any monitoring point triggers immediate protection. Any anomaly in either device automatically closes the discharge valve and opens the return valve, diverting the discharged medium (i.e., substandard water) back to the monitoring tank. Therefore, this invention changes the existing management model that relies solely on manual sampling and approval before discharge. It establishes a closed-loop protection mechanism during the discharge process, including real-time monitoring, automatic judgment, and interlocked return, fundamentally eliminating the risk of accidental discharge due to pipeline leaks, radioactive exceedances, or other abnormalities. This significantly improves the safety and reliability of the discharge operation of the monitoring tank in the high-temperature reactor liquid waste treatment system.

[0009] In one optional embodiment, the monitoring tank is further equipped with an inlet pipe, on which a third radioactivity monitoring device is installed. The control unit is also connected to the third radioactivity monitoring device and is used to issue an alarm when the third radioactivity monitoring device detects that the radioactivity of the incoming water exceeds a preset safety threshold. By installing a third radioactivity monitoring device on the inlet pipe of the monitoring tank, source radioactivity monitoring of the liquid waste entering the tank is achieved. When the radioactivity of the incoming water exceeds the preset safety threshold, the system can promptly issue an alarm, reminding operators to check the upstream treatment equipment, and can interlock to close the inlet electric valve. Therefore, this invention, based on existing discharge process monitoring, further constructs a radioactivity early warning system at the inlet end, preventing unqualified water from entering the monitoring tank, avoiding the risk of subsequent erroneous discharge due to upstream treatment abnormalities, and further improving the overall safety level of the high-temperature reactor liquid waste treatment system.

[0010] In one optional embodiment, a second discharge valve is further provided on the discharge pipeline, located on the discharge pipeline after the second flow detection device. The control unit is also connected to the second discharge valve and is used to control the first and second discharge valves to close simultaneously when the deviation exceeds a first threshold or either reading exceeds a second threshold. By further providing a second discharge valve on the discharge pipeline and placing it after the second flow detection device, the control unit can achieve simultaneous interlocking closure of the first and second discharge valves. When the system detects that the flow deviation exceeds the first threshold or the radioactivity reading exceeds the second threshold, the control unit can simultaneously close the two series-connected discharge valves, forming a double barrier. This significantly enhances the sealing reliability of the discharge pipeline and the system's fault tolerance under abnormal operating conditions, providing a higher level of safety assurance for preventing accidental discharge from the high-temperature reactor monitoring water tank.

[0011] In one optional embodiment, a liquid level monitoring unit is installed inside the monitoring tank to detect the liquid level status. The control unit is also connected to the liquid level monitoring unit and controls the first discharge valve to close when the liquid level is detected to have dropped to a preset low level. By installing a liquid level monitoring unit inside the monitoring tank and connecting the control unit to it, real-time monitoring and automatic linkage control of the tank's liquid level are achieved. When the liquid level is detected to have dropped to the preset low level, the control unit automatically controls the first discharge valve to close, preventing the discharge pump from running dry and preventing pipe siphoning. Therefore, this embodiment further improves the automatic pump stop and valve closure mechanism after discharge, avoiding excessive discharge or equipment damage due to human error or missing liquid level signals, and significantly improving the automation level and operational safety of the entire process of high-temperature reactor monitoring tank discharge operation.

[0012] In one optional implementation, the liquid level monitoring unit includes multiple liquid level switches positioned at different heights within the monitoring tank. By distributing the liquid level monitoring unit among multiple liquid level switches at different heights within the monitoring tank, multi-point monitoring of the tank's liquid level is achieved, providing the system with a more precise and reliable basis for determining the liquid level status.

[0013] In one optional embodiment, the monitoring tank includes a first monitoring tank and a second monitoring tank. The first and second monitoring tanks are each equipped with a first inlet pipe and a second inlet pipe, respectively. A first inlet electric valve and a second inlet electric valve are respectively installed on the first and second inlet pipes, and both are connected to a control unit. When the liquid level in the first monitoring tank reaches a preset high level, the control unit closes the first inlet electric valve and detects the liquid level in the second monitoring tank. If the liquid level in the second monitoring tank is lower than a preset switching threshold, the control unit opens the second inlet electric valve. By setting up a first monitoring tank and a second monitoring tank, and installing electric valves controlled by the control unit on their respective inlet pipes, liquid level linkage and switching between the two tanks are achieved. When the liquid level in the first monitoring tank reaches the preset high level, the control unit automatically closes its inlet electric valve to prevent the tank from overfilling; simultaneously, it detects the liquid level in the second monitoring tank, and if its liquid level is lower than the preset switching threshold, it automatically opens the inlet electric valve of the second monitoring tank to introduce wastewater into the second monitoring tank. Thus, this invention enables alternating water intake and continuous operation of dual water tanks, automatically switching between tanks without manual intervention. This avoids the risk of system shutdown or radioactive liquid spillage due to overflow of a single water tank, significantly improving the continuous operation capability and automated management level of the high-temperature reactor liquid waste treatment system.

[0014] Secondly, the present invention provides a method for preventing accidental discharge of a high-temperature reactor monitoring water tank based on the above-mentioned system, comprising: comparing in real time the readings of a first flow detection device installed before the first discharge valve and a second flow detection device installed after the first discharge valve; when the deviation between the two exceeds a first threshold, controlling the first discharge valve to close and controlling the return valve to open, so as to lead the discharged medium back to the monitoring water tank; and reading in real time the readings of a first radioactive monitoring device and a second radioactive monitoring device installed on the discharge pipeline; when either reading exceeds a second threshold, controlling the first discharge valve to close and controlling the return valve to open, so as to lead the discharged medium back to the monitoring water tank.

[0015] In one optional implementation, the method further includes a water inlet radioactivity monitoring step: detecting the radioactivity of the inlet water by a third radioactivity monitoring device installed on the inlet pipe of the monitoring water tank, and issuing an alarm message when the detected radioactivity of the inlet water exceeds a preset safety threshold.

[0016] In an optional implementation, the method further includes a liquid level monitoring step: detecting the liquid level status by a liquid level monitoring unit installed in the water tank, and controlling the first discharge valve to close when the liquid level is detected to drop to a preset low level.

[0017] Thirdly, the present invention provides a computer-readable storage medium storing computer instructions for causing a computer to execute the method for preventing accidental discharge of high-temperature reactor monitoring water tanks as described in the first aspect or any corresponding embodiment. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a first structural block diagram of a high-temperature reactor monitoring water tank anti-misdischarge system according to an embodiment of the present invention; Figure 2 This is a second structural block diagram of the high-temperature reactor monitoring water tank anti-misdischarge system according to an embodiment of the present invention; Figure 3 This is a schematic flowchart of a method for preventing accidental discharge from a high-temperature reactor monitoring water tank according to an embodiment of the present invention. Figure 4 This is a schematic diagram of the hardware structure of an electronic device according to an embodiment of the present invention. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] It is understood that before using the technical solutions disclosed in the various embodiments of the present invention, users should be informed of the types, scope of use, and usage scenarios of the personal information involved in the present invention and their authorization should be obtained in accordance with relevant laws and regulations through appropriate means.

[0022] 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 one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] Existing technologies rely on manual approval and control for monitoring water tank discharge operations. This makes it impossible to monitor and automatically handle anomalies such as pipe leaks and excessive radioactivity during the discharge process, leading to the risk of accidental discharge. Therefore, this invention provides a system, method, and storage medium for preventing accidental discharge from a high-temperature reactor monitoring water tank, to address this technical problem.

[0024] This invention provides a high-temperature reactor monitoring water tank anti-misdischarge system, see [link / reference]. Figure 1 The system includes: The monitoring water tank is equipped with a discharge pipe; The first discharge valve is installed on the discharge pipe; The first flow detection device and the second flow detection device are respectively installed on the discharge pipe before the first discharge valve and the discharge pipe after the first discharge valve; The first and second radioactive monitoring devices are respectively installed on the discharge pipeline; The return pipe is connected to the discharge pipe at one end and to the monitoring water tank at the other end. The return pipe is equipped with a return valve. The control unit is connected to the first discharge valve, the first flow detection device, the second flow detection device, the first radioactivity monitoring device, the second radioactivity monitoring device, and the return valve, respectively. The control unit is used to: compare the readings of the first flow detection device and the second flow detection device, and when the deviation between the two exceeds a first threshold, control the first discharge valve to close and control the return valve to open; read the readings of the first radioactivity monitoring device and the second radioactivity monitoring device, and when either reading exceeds a second threshold, control the first discharge valve to close and control the return valve to open.

[0025] The high-temperature reactor monitoring water tank anti-misdischarge system provided in this embodiment operates as follows: Under normal conditions, the monitoring tank collects treated wastewater that meets standards. When discharge is required, the control unit initiates the discharge process, the first discharge valve opens, and the wastewater in the monitoring tank is discharged outwards through the discharge pipe. During the discharge process, the control unit executes the following monitoring and control logic in real time: (1) The control unit reads the readings of the first flow detection device and the second flow detection device in real time and continuously compares the difference between the two. When the deviation between the reading of the first flow detection device and the reading of the second flow detection device exceeds the preset first threshold, it indicates that there is a leak in the discharge pipe or that the first discharge valve is not closed tightly. At this time, the control unit immediately controls the first discharge valve to close and controls the return valve to open, so that the discharge medium is returned to the monitoring water tank through the return pipe to prevent the radioactive liquid from continuing to leak.

[0026] (2) The control unit reads the readings of the first and second radioactive monitoring devices in real time. When the reading of either radioactive monitoring device exceeds the preset second threshold, it indicates that the radioactivity of the discharged water exceeds the standard. At this time, the control unit also immediately controls the first discharge valve to close and controls the return valve to open, so that the unqualified water is returned to the monitoring water tank through the return pipe, thus preventing the unqualified water from being discharged into the environment.

[0027] The two monitoring logics described above are independent and execute in parallel. Once either abnormal condition is triggered, the system automatically performs valve closure and backflow operations without manual intervention. Wastewater is only discharged to the designated discharge outlet through the discharge pipeline when the discharge process is proceeding normally and no abnormal conditions are triggered.

[0028] Optionally, the control unit is also used to issue an audible and visual alarm when any radioactive monitoring device exceeds the limit, and to display the specific instrument number and measured value on the control interface so that operators can quickly locate the faulty instrument and take appropriate measures.

[0029] This invention provides another high-temperature reactor monitoring water tank anti-misdischarge system, see [link to relevant documentation]. Figure 2 The system is in Figure 1 Based on the illustrated embodiment, the system further includes: an inlet pipe for monitoring the water tank, on which a third radioactivity monitoring device is installed to detect the radioactivity level of wastewater entering the monitoring water tank in real time. The control unit is also connected to the third radioactivity monitoring device and issues an alarm when the third radioactivity monitoring device detects that the radioactivity of the influent exceeds a preset safety threshold. When the third radioactivity monitoring device detects that the radioactivity of the influent exceeds the preset safety threshold, the control unit issues an alarm to remind operators to check the upstream treatment equipment.

[0030] Furthermore, the control unit can also interlock and close the inlet electric valve on the inlet pipe of the monitoring water tank according to a preset strategy, automatically preventing unqualified water from entering the monitoring water tank and achieving source isolation. Through the above-mentioned inlet radioactivity monitoring design, this invention achieves source radioactivity detection before wastewater enters the monitoring water tank, enabling timely detection of abnormalities in the upstream treatment process and preventing unqualified water from contaminating the monitoring water tank.

[0031] In one optional embodiment, a second discharge valve is also provided on the discharge pipe, the second discharge valve being located on the discharge pipe after the second flow detection device; the control unit is also connected to the second discharge valve and is used to: control the first discharge valve and the second discharge valve to close simultaneously when the deviation exceeds the first threshold or any reading exceeds the second threshold.

[0032] For example, two discharge valves, designated as a first discharge valve and a second discharge valve, are connected in series on the discharge pipeline. A first flow detection device is installed before the first discharge valve, and a second flow detection device is installed before the second discharge valve. The control unit compares the readings of the first and second flow detection devices in real time. If the deviation between the readings of the two flow detection devices exceeds a set threshold (e.g., ±10%), it is determined that there is a leak in the discharge pipeline or an instrument malfunction. At this time, the control unit automatically interlocks and closes the first and second discharge valves, while simultaneously opening the return valve on the return pipeline to guide the discharged medium back to the monitoring tank, preventing the leakage of radioactive liquid.

[0033] In one optional embodiment, a liquid level monitoring unit is installed inside the monitoring tank to detect the liquid level status; the control unit is also connected to the liquid level monitoring unit and is used to control the first discharge valve to close when the liquid level is detected to have dropped to a preset low level. The liquid level monitoring unit includes multiple liquid level switches installed at different height positions in the monitoring tank.

[0034] In one optional embodiment, the monitoring water tank includes a first monitoring water tank and a second monitoring water tank; the first monitoring water tank and the second monitoring water tank are also respectively provided with a first inlet pipe and a second inlet pipe, and a first inlet electric valve and a second inlet electric valve are respectively provided on the first inlet pipe and the second inlet pipe, and the first inlet electric valve and the second inlet electric valve are respectively connected to the control unit; when the liquid level of the first monitoring water tank reaches a preset high liquid level, the control unit controls the first inlet electric valve to close and detects the liquid level of the second monitoring water tank; if the liquid level of the second monitoring water tank is lower than a preset switching threshold, the control unit controls the second inlet electric valve to open.

[0035] In addition, each monitoring water tank is also equipped with a separate discharge pump. In the above implementation method, the first monitoring water tank is equipped with a first discharge pump and the second monitoring water tank is equipped with a second discharge pump.

[0036] For example, each water level monitoring unit in the monitoring tank includes three level switches at different height positions, defined as follows: The first liquid level switch, corresponding to the warning liquid level, is used to issue a warning signal when the liquid level in the monitored water tank reaches the set value, prompting the operators to prepare to start the discharge process; The second level switch corresponds to the interlocked inlet valve level. When the level of a certain monitored water tank reaches the set level, it interlocks and closes the inlet electric valve of that monitored water tank to prevent the tank from becoming too full. At the same time, the control unit detects the level of the other monitored water tank. If the level of the other monitored water tank is lower than the preset switching threshold, it controls the opening of the inlet electric valve of the other monitored water tank to achieve alternating water intake from the two water tanks. The third liquid level switch corresponds to the low liquid level at which the pump stops. It is used to interlock and stop the discharge pump and close the discharge outlet electric valve when the liquid level in the monitored water tank drops to the set value, thus preventing the pump from running dry and the pipeline from siphoning.

[0037] Furthermore, each level switch is equipped with three independent monitoring channels, using a two-out-of-three logic judgment: that is, the control unit only confirms the validity of the level status when at least two of the three channels output consistent signals; otherwise, it issues an instrument fault alarm to prevent malfunctions caused by single-point failures.

[0038] It is worth noting that the present invention is not limited to two monitoring water tanks. One or more monitoring water tanks can be set up according to actual needs, and corresponding liquid level monitoring and inlet electric valves and discharge pumps can be flexibly configured.

[0039] In one alternative implementation, a manual valve is also provided on the discharge duct, located before the first radioactivity monitoring device, for personnel to manually open or close the discharge duct when necessary.

[0040] In this embodiment, the first flow detection device is positioned before the first discharge valve, and the second flow detection device is positioned after the first discharge valve. This arrangement aims to determine whether the first discharge valve is not properly closed or whether there is a leak in the discharge pipeline by comparing the flow rates before and after the valve. If the reading of the first flow detection device is normal while the reading of the second flow detection device is significantly lower, it indicates a leak in the first discharge valve or the subsequent pipeline, and the control unit triggers the backflow interlock accordingly. It should be noted that this application explicitly defines the positional relationship between the flow detection device and the discharge valve; this positional relationship is crucial for achieving valve leak detection.

[0041] It should be noted that the appendix Figure 1-2 The relative positions of the detection devices and valves shown are merely one specific exemplary arrangement to aid in understanding the technical solution of the present invention, but the invention is not limited thereto. For example, the first and second radioactivity monitoring devices are located before the second flow detection device in Figures 1-2, but in actual implementation, the two radioactivity monitoring devices can be installed at any position on the discharge pipe, as long as they can effectively monitor the radioactivity activity in the discharged water. The order of the two radioactivity monitoring devices can also be interchanged. Similarly, the connection point of the return pipe is not limited to the one shown in the figure. Figure 1-2 The specific locations shown are sufficient as long as one end is connected to the discharge pipe and the other end to the monitoring water tank to achieve the backflow function. Those skilled in the art can flexibly adjust the specific locations of each device according to the actual conditions such as the on-site pipeline layout and equipment installation space, and such adjustments are all within the protection scope of this invention.

[0042] In one optional implementation, the system is also equipped with dynamic scheduling and priority control functions. When the system receives a discharge permission signal, the control unit automatically determines the remaining capacity of the current discharge pipeline and the discharge priority of each monitoring tank. If multiple monitoring tanks apply for discharge simultaneously, the control unit automatically schedules the discharge order according to preset priority rules: tasks with higher water levels are executed first; tasks with earlier application times are executed first; if a manual selection signal exists, it is listed as the highest priority to meet actual work needs.

[0043] Based on the technical features of the above embodiments, the complete discharge process of the high-temperature reactor monitoring water tank anti-misoperation discharge system provided by the present invention is as follows: (1) Initial state: The system logic locks the first and second discharge valves, the three-out-of-two liquid level switch monitors the water tank level in real time, and the system is in standby state.

[0044] (2) Liquid level warning: When the three-out-of-two signal of the first liquid level switch is valid, the system issues a warning signal to prompt the operator to start the self-circulation process and submit a discharge application.

[0045] (3) Application and pretreatment: After receiving the discharge application signal, the system automatically closes the inlet electric valve to prevent new wastewater from entering during the discharge process. If the two-out-of-three signal of the second liquid level switch is valid, the system forcibly closes the inlet electric valve and switches the water inlet to another monitoring tank to realize the alternating water inlet of the two tanks.

[0046] (4) Water quality and approval: After the self-circulation reaches the set time, the water quality analyzer generates a qualified signal; the shift leader approves the discharge through encrypted instructions.

[0047] (5) Discharge Execution: After receiving the shift supervisor's approval signal, the system releases the logic interlock of each discharge valve, and the operators open the manual valves and start each discharge pump according to the procedures. During the discharge process, the first flow detection device and the second flow detection device compare the readings in real time, and the first radioactivity monitoring device and the second radioactivity monitoring device monitor the radioactivity activity in real time. Any abnormality will trigger the backflow interlock, automatically close the discharge valve and open the backflow valve.

[0048] (6) End of discharge: When the three-out-of-two signal of the third liquid level switch is valid, the system automatically stops the discharge pump, closes the first discharge valve, and resets the system state to the initial state, waiting for the next discharge cycle.

[0049] This embodiment provides a method for preventing accidental discharge from a high-temperature reactor monitoring water tank, based on the above... Figure 1The system of embodiment 2 can perform the operation of preventing accidental discharge from the high-temperature reactor monitoring water tank. It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in a different order than that shown here. Figure 3 This is a flowchart of a method for preventing accidental discharge from a high-temperature reactor monitoring water tank according to an embodiment of the present invention, such as... Figure 3 As shown, the process includes the following steps: Step S301: In real time, compare the readings of the first flow detection device set before the first discharge valve and the second flow detection device set after the first discharge valve. When the deviation between the two exceeds the first threshold, control the first discharge valve to close and control the return valve to open, so as to lead the discharge medium back to the monitoring water tank.

[0050] Step S302: Read the readings of the first and second radioactive monitoring devices installed on the discharge pipeline in real time. When either reading exceeds the second threshold, control the first discharge valve to close and control the return valve to open, so as to lead the discharge medium back to the monitoring water tank.

[0051] In one optional implementation, the method of this embodiment further includes a water inlet radioactivity monitoring step: detecting the radioactivity of the inlet water by a third radioactivity monitoring device installed on the inlet pipe of the monitoring water tank, and issuing an alarm message when the detected radioactivity of the inlet water exceeds a preset safety threshold.

[0052] In an optional implementation, the method of this embodiment further includes a liquid level monitoring step: the liquid level status is detected by a liquid level monitoring unit installed in the water tank, and when the liquid level is detected to drop to a preset low liquid level, the first discharge valve is controlled to close.

[0053] In an optional implementation, the method of this embodiment further includes an anomaly handling step: recording all interlocking actions (including flow deviation, excessive radioactivity, abnormal liquid level, etc.) in the historical database of the control system and pushing alarm information to the operator station for easy post-event analysis and tracing.

[0054] The following describes in detail the specific implementation process of the method of the present invention using a complete discharge cycle of the first monitoring water tank as an example.

[0055] 1. Liquid level monitoring and two-out-of-three logic configuration.

[0056] Three level switches are installed on the first monitoring water tank: a first level switch, a second level switch, and a third level switch. Each level switch consists of three independent sensors, and the signals are connected to the control unit (DCS / PLC). The control unit performs a two-out-of-three decision.

[0057] For example, the system will only confirm the warning is valid and trigger the prompt if at least two of the three channels of the first liquid level switch output a "liquid level reached" signal.

[0058] 2. Monitoring of radioactivity in incoming water.

[0059] A third radioactivity monitoring device is installed on the inlet pipe of the first monitoring water tank. When the third radioactivity monitoring device detects that the radioactivity exceeds a preset threshold (e.g., 10 Bq / L), the control unit issues an alarm and can optionally interlock to close the inlet electric valve.

[0060] 3. Liquid level linkage and water tank switching.

[0061] When the liquid level in the first monitoring tank reaches the position monitored by the second liquid level switch, the control unit executes the following: closes the inlet electric valve of the first monitoring tank; reads the liquid level signal of the second monitoring tank (also using a 3-out-of-2 logic); if the liquid level in the second monitoring tank is lower than the preset switching threshold (e.g., 50%), the inlet electric valve of the second monitoring tank is automatically opened to introduce wastewater into the second monitoring tank.

[0062] 4. Emission process and safety interlocks.

[0063] After the operator submits an emission request and receives encrypted approval from the shift supervisor, the control unit releases the logic lockout of the first emission valve. The operator then opens the manual valve and starts the emission pump according to the procedure.

[0064] During the emission process: Flow rate comparison: The real-time readings of the first and second flow rate detection devices are transmitted to the control unit. If the difference between the two readings exceeds a first threshold (e.g., 10%) and lasts for 3 seconds, it is determined to be a leak or abnormality. The control unit immediately closes the first discharge valve and opens the return valve to return the liquid to the monitoring tank.

[0065] Radioactivity monitoring: The first and second radioactivity monitoring devices operate independently. If the reading of either monitoring device exceeds the second threshold (e.g., 100 Bq / L), the control unit will also execute the aforementioned backflow interlock and trigger an alarm.

[0066] 5. Low liquid level pump shutdown and reset.

[0067] When the discharge process continues until the liquid level drops to the position of the third liquid level switch (5%), the three-out-of-two signal becomes valid, and the control unit automatically: Stop the discharge pump; Close the first discharge valve; Close the reflux valve (if it was previously opened); Reset the system status to "no emissions application" and wait for the next cycle.

[0068] 6. Exception handling and logging.

[0069] All interlocking actions (flow deviation, excessive radioactivity, abnormal liquid level, etc.) are recorded in the historical database of the control system and alarm information is pushed to the operator station for easy post-event analysis and traceability.

[0070] Through the above steps, this method places the operating authority of key equipment under strict procedural and logical control, ensuring that each operation undergoes necessary review and confirmation, thereby achieving effective prevention of accidental discharge incidents both technically and managerially.

[0071] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention.

[0072] The following is a detailed reference. Figure 4 This diagram illustrates a structural schematic suitable for implementing an electronic device according to embodiments of the present invention. The electronic device may include a processor (e.g., a central processing unit, graphics processor, etc.) 401, which can perform various appropriate actions and processes according to a program stored in read-only memory (ROM) 402 or a program loaded from memory 408 into random access memory (RAM) 403. The RAM 403 also stores various programs and data required for the operation of the electronic device. The processor 401, ROM 402, and RAM 403 are interconnected via a bus 404. An input / output (I / O) interface 405 is also connected to the bus 404.

[0073] Typically, the following devices can be connected to I / O interface 405: input devices 406 including, for example, touchscreens, touchpads, keyboards, mice, cameras, microphones, accelerometers, gyroscopes, etc.; output devices 407 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; memory devices 408 including, for example, magnetic tapes, hard disks, etc.; and communication devices 409. Communication device 409 allows electronic devices to communicate wirelessly or wiredly with other devices to exchange data. Although Figure 4 Electronic devices with various devices are shown, but it should be understood that it is not required to implement or have all of the devices shown, and more or fewer devices may be implemented or have instead.

[0074] In particular, according to embodiments of the present invention, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of the present invention include a computer program product comprising a computer program carried on a non-transitory computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device 409, or installed from a memory 408, or installed from a ROM 402. When the computer program is executed by the processor 401, it performs the functions defined in the high-temperature reactor monitoring tank anti-misoperation discharge method of the embodiments of the present invention.

[0075] Figure 4 The electronic device shown is merely an example and should not be construed as limiting the functionality and scope of the embodiments of the present invention.

[0076] This invention also provides a computer-readable storage medium. The methods described above according to embodiments of the invention can be implemented in hardware or firmware, or implemented as computer code that can be recorded on a storage medium, or implemented as computer code downloaded via a network and originally stored on a remote storage medium or a non-transitory machine-readable storage medium and then stored on a local storage medium. Thus, the methods described herein can be processed by software stored on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. The storage medium can be a magnetic disk, optical disk, read-only memory, random access memory, flash memory, hard disk, or solid-state drive, etc.; further, the storage medium can also include combinations of the above types of memory. It is understood that computers, processors, microprocessor controllers, or programmable hardware include storage components capable of storing or receiving software or computer code. When the software or computer code is accessed and executed by the computer, processor, or hardware, the method for preventing accidental discharge of the high-temperature reactor monitoring water tank shown in the above embodiments is implemented.

[0077] A portion of this invention can be applied as a computer program product, such as computer program instructions, which, when executed by a computer, can invoke or provide the methods and / or technical solutions according to the invention through the operation of the computer. Those skilled in the art will understand that the forms in which computer program instructions exist in a computer-readable medium include, but are not limited to, source files, executable files, installation package files, etc. Correspondingly, the ways in which computer program instructions are executed by a computer include, but are not limited to: the computer directly executing the instructions, or the computer compiling the instructions and then executing the corresponding compiled program, or the computer reading and executing the instructions, or the computer reading and installing the instructions and then executing the corresponding installed program. Here, the computer-readable medium can be any available computer-readable storage medium or communication medium accessible to a computer.

[0078] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A high-temperature reactor monitoring water tank anti-misdischarge system, characterized in that, include: The monitoring water tank is equipped with a discharge pipe; A first discharge valve is installed on the discharge pipe; The first flow detection device and the second flow detection device are respectively installed on the discharge pipe before the first discharge valve and the discharge pipe after the first discharge valve; The first and second radioactive monitoring devices are respectively installed on the discharge pipeline; A return pipe is connected at one end to the discharge pipe and at the other end to the monitoring water tank, and a return valve is provided on the return pipe; The control unit is connected to the first discharge valve, the first flow detection device, the second flow detection device, the first radioactivity monitoring device, the second radioactivity monitoring device, and the return valve, respectively. The control unit is used to: compare the readings of the first flow detection device and the second flow detection device, and when the deviation between the two exceeds a first threshold, control the first discharge valve to close and control the return valve to open; read the readings of the first radioactivity monitoring device and the second radioactivity monitoring device, and when either reading exceeds a second threshold, control the first discharge valve to close and control the return valve to open.

2. The high-temperature reactor monitoring water tank anti-misdischarge system according to claim 1, characterized in that, The monitoring water tank is also equipped with an inlet pipe, on which a third radioactivity monitoring device is installed; the control unit is also connected to the third radioactivity monitoring device and is used to issue an alarm message when the third radioactivity monitoring device detects that the radioactivity of the incoming water exceeds a preset safety threshold.

3. The high-temperature reactor monitoring water tank anti-misdischarge system according to claim 1, characterized in that, The discharge pipe is also equipped with a second discharge valve, which is located on the discharge pipe after the second flow detection device; The control unit is also connected to the second discharge valve and is used to: control the first discharge valve and the second discharge valve to close simultaneously when the deviation exceeds the first threshold or any reading exceeds the second threshold.

4. The high-temperature reactor monitoring water tank anti-misdischarge system according to claim 1, characterized in that, The monitoring tank is equipped with a liquid level monitoring unit for detecting the liquid level status; the control unit is also connected to the liquid level monitoring unit and is used to control the first discharge valve to close when the liquid level is detected to drop to a preset low level.

5. The high-temperature reactor monitoring water tank anti-misdischarge system according to claim 4, characterized in that, The liquid level monitoring unit includes multiple liquid level switches installed at different heights of the monitoring water tank.

6. The high-temperature reactor monitoring water tank anti-misdischarge system according to claim 4, characterized in that, The monitoring water tank includes a first monitoring water tank and a second monitoring water tank; the first monitoring water tank and the second monitoring water tank are also respectively provided with a first inlet pipe and a second inlet pipe, and the first inlet pipe and the second inlet pipe are respectively provided with a first inlet electric valve and a second inlet electric valve, and the first inlet electric valve and the second inlet electric valve are respectively connected to the control unit. When the liquid level in the first monitoring tank reaches the preset high liquid level, the control unit controls the closing of the first inlet electric valve and detects the liquid level in the second monitoring tank. If the liquid level in the second monitoring tank is lower than the preset switching threshold, the control unit controls the opening of the second inlet electric valve.

7. A method for preventing accidental discharge from a high-temperature reactor monitoring water tank based on the system described in any one of claims 1-6, characterized in that, include: The readings of the first flow detection device set before the first discharge valve and the second flow detection device set after the first discharge valve are compared in real time. When the deviation between the two exceeds the first threshold, the first discharge valve is closed and the return valve is opened to return the discharge medium to the monitoring water tank. The readings of the first and second radioactive monitoring devices installed on the discharge pipeline are read in real time. When either reading exceeds the second threshold, the first discharge valve is closed and the return valve is opened to return the discharged medium to the monitoring water tank.

8. The method for preventing accidental discharge of water from a high-temperature reactor monitoring tank according to claim 7, characterized in that, It also includes a water ingress radioactivity monitoring step: a third radioactivity monitoring device installed on the inlet pipe of the monitoring water tank detects the radioactivity of the ingress water, and an alarm is issued when the detected radioactivity exceeds a preset safety threshold.

9. The method for preventing accidental discharge of water from a high-temperature reactor monitoring tank according to claim 7, characterized in that, It also includes a liquid level monitoring step: the liquid level is detected by a liquid level monitoring unit installed in the water tank, and when the liquid level drops to a preset low level, the first discharge valve is controlled to close.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing the computer to execute the method for preventing accidental discharge of water from a high-temperature reactor monitoring tank as described in any one of claims 7 to 9.

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