Overall leakage rate monitoring apparatus for containment vessel, and overall leakage rate monitoring method for containment vessel

Abstract

The present application relates to an overall leakage rate monitoring apparatus for a containment vessel, and an overall leakage rate monitoring method for a containment vessel. The monitoring apparatus comprises: a flow monitoring assembly, a pressure monitoring assembly, a pressure comparison monitoring assembly, an instrument monitoring assembly and a processor, wherein the flow monitoring assembly, the pressure monitoring assembly, the pressure comparison monitoring assembly and the instrument monitoring assembly are each connected to the processor; the flow monitoring assembly is used for monitoring a depressurization flow value inside a containment vessel; the pressure monitoring assembly is used for monitoring a pressure value inside the containment vessel; the pressure comparison monitoring assembly is used for monitoring a pressure comparison value between the inside of the containment vessel and the outside of the containment vessel; the instrument monitoring assembly is used for monitoring the temperature and humidity in the containment vessel; and the processor is used for acquiring the overall leakage rate of the containment vessel on the basis of the depressurization flow value, the pressure value, the pressure comparison value, and the temperature and humidity. The method can solve the defect in an instrument configuration method for an overall leakage rate test for a containment vessel of a nuclear reactor.

Description

Containment overall leakage rate monitoring device and containment overall leakage rate monitoring method

[0001] Related applications

[0002] This application claims priority to Chinese patent application number 2023110896518, filed on August 28, 2023, entitled “CONTAINMENT SHELL INTEGRATED LEAKAGE RATE MONITORING DEVICE AND CONTAINMENT SHELL INTEGRATED LEAKAGE RATE MONITORING METHOD,” the entire text of which is incorporated herein by reference. Technical Field

[0003] The present application relates to the field of nuclear power technology, and in particular to a device and method for monitoring the overall leakage rate of a containment vessel. Background Art

[0004] Typically, the overall leakage rate test of the nuclear reactor containment in a nuclear power plant requires collecting data such as temperature, humidity, and pressure probes inside the containment, and then using the collected data to calculate the overall leakage rate of the containment to test the containment's sealing.

[0005] Traditionally, data acquisition instruments within containment vessels are configured based on experience gained from previous projects. Consequently, there is a lack of configuration methods for testing the overall leakage rate of nuclear reactor containment vessels.

[0006] Summary of the Invention

[0007] Based on this, it is necessary to provide a containment overall leakage rate monitoring device and a containment overall leakage rate monitoring method that can solve the above technical problems and solve the lack of a nuclear reactor containment overall leakage rate test instrument configuration method.

[0008] In a first aspect, the present application provides a device for monitoring the overall leakage rate of a containment vessel. The device comprises: a flow monitoring component, a pressure monitoring component, a pressure comparison monitoring component, an instrument monitoring component, and a processor; the flow monitoring component, the pressure monitoring component, the pressure comparison monitoring component, and the instrument monitoring component are respectively connected to the processor;

[0009] The flow monitoring component is used to monitor the pressure relief flow value in the containment shell;

[0010] The pressure monitoring assembly is used to monitor the pressure value inside the containment shell;

[0011] The pressure comparison monitoring component is used to monitor the pressure comparison value inside the containment shell and outside the containment shell;

[0012] The instrument monitoring assembly is used to monitor the temperature and humidity inside the containment shell;

[0013] The processor is configured to obtain an overall leakage rate of the containment vessel according to the pressure relief flow value, the pressure value, the pressure comparison value, and the temperature and humidity.

[0014] In one embodiment, the flow monitoring component includes: a first containment isolation valve unit, a drain unit and a pressure relief pipeline monitoring unit; the drain unit and the pressure relief pipeline monitoring unit are both arranged outside the containment shell; the first containment isolation valve unit is connected to the drain unit, and the pressure relief pipeline monitoring unit is connected to the processor, for sending the flow value monitored by the flow monitoring component to the processor.

[0015] In one embodiment, the first containment isolation valve unit includes: a first containment penetration piece, a first containment internal isolation valve, and a first containment external isolation valve; the first containment internal isolation valve is arranged in the containment shell, and the first containment external isolation valve is arranged in the containment shell; the first end of the first containment internal isolation valve is arranged in the containment shell, the second end of the first containment internal isolation valve is connected to the first end of the first containment penetration piece, and the second end of the first containment penetration piece is connected to the first end of the first containment external isolation valve.

[0016] In one embodiment, the drain unit includes: a first drain isolation valve and a drain pit; the first end of the first drain isolation valve is connected to the drain pit, and the second end of the first drain isolation valve is connected to the second end of the first containment shell external isolation valve.

[0017] In one embodiment, the pressure relief line monitoring unit includes: a pressure relief line isolation valve, a pressure relief line main flow regulating valve, a pressure relief line test flow regulating valve, a measuring orifice plate, an upstream flow measurement root valve, a downstream flow measurement root valve, a flow measurement instrument, a check valve, a second steam trap isolation valve, an auxiliary exhaust valve and a pressure relief main airflow discharge chamber;

[0018] The first end of the pressure relief line isolation valve is connected to the first end of the first containment shell external isolation valve, the second end of the first steam trap isolation valve, and the first end of the pressure relief line test flow regulating valve. The second end of the pressure relief line test flow regulating valve is connected to the measuring orifice plate.

[0019] The second end of the pressure relief line isolation valve is connected to the first end of the pressure relief line main flow regulating valve, and the second end of the pressure relief line main flow regulating valve is respectively connected to the measuring orifice plate, the first end of the check valve, the first end of the second steam trap, the first end of the auxiliary exhaust valve, and the converging point of the pressure relief main airflow discharge chamber;

[0020] The measuring orifice plate is further connected to the first end of the upstream flow measurement root valve and the first end of the downstream flow measurement root valve, respectively. The second end of the upstream flow measurement root valve and the second end of the downstream flow measurement root valve are both connected to the first end of the flow measurement meter. The second end of the flow measurement meter is connected to the processor for sending the flow measured by the flow measurement meter to the processor.

[0021] The second end of the check valve is connected to the second drain isolation valve and the first end of the auxiliary exhaust valve respectively, and the second end of the auxiliary exhaust valve is connected to the pressure relief main airflow discharge chamber.

[0022] In one embodiment, the pressure monitoring assembly includes: a second containment isolation valve unit and a pressure measuring unit; the second containment isolation valve unit is connected to the processor through the pressure measuring unit, and is used to send the pressure value monitored by the pressure monitoring assembly to the processor.

[0023] In one embodiment, the second containment isolation valve unit includes: a second containment penetration piece, a second containment internal isolation valve, and a second containment external isolation valve; the second containment internal isolation valve is arranged inside the containment shell, and the second containment external isolation valve is arranged outside the containment shell; the first end of the second containment internal isolation valve is arranged inside the containment shell, the second end of the second containment internal isolation valve is connected to the first end of the second containment penetration piece, and the second end of the second containment penetration piece is connected to the first end of the second containment external isolation valve.

[0024] In one embodiment, the pressure measuring unit includes: a first containment pressure measuring subunit and a second containment pressure measuring subunit; the first containment pressure measuring subunit is connected to the second end of the second containment external isolation valve and the second containment pressure measuring subunit, respectively;

[0025] The first containment pressure measuring subunit and the second containment pressure measuring subunit are arranged in parallel to verify the measured pressure values ​​with each other.

[0026] In one of the embodiments, the first containment pressure measurement subunit includes: a first containment pressure measurement primary diaphragm valve, a first containment pressure measurement secondary diaphragm valve, a first pressure measurement root valve, and a first containment pressure measurement instrument;

[0027] The first end of the first containment pressure measurement primary diaphragm valve is connected to the second end of the second containment external isolation valve, the second end of the first containment pressure measurement primary diaphragm valve is connected to the convergence point of the first end of the first containment pressure measurement secondary diaphragm valve and the first end of the first pressure measurement root valve, the second end of the first pressure measurement root valve is connected to the first end of the first containment pressure measuring instrument, and the second end of the first containment pressure measuring instrument is connected to the processor for sending the flow measured by the first containment pressure measuring instrument to the processor.

[0028] In one of the embodiments, the second containment pressure measurement subunit includes: a second containment pressure measurement primary diaphragm valve, a second containment pressure measurement secondary diaphragm valve, a second pressure measurement root valve, and a second containment pressure measurement instrument;

[0029] The first end of the second containment pressure measurement primary diaphragm valve is connected to the convergence point of the first end of the first containment pressure measurement primary diaphragm valve and the first end of the second containment external isolation valve, the second end of the second containment pressure measurement primary diaphragm valve is connected to the convergence point of the first end of the second containment pressure measurement secondary diaphragm valve and the first end of the second pressure measurement root valve, the second end of the second pressure measurement root valve is connected to the second containment pressure measuring instrument, and the second end of the second containment pressure measuring instrument is connected to the processor for sending the flow measured by the second containment pressure measuring instrument to the processor.

[0030] In one embodiment, the pressure comparison monitoring assembly includes: a pressure comparison monitoring unit inside the containment shell and a pressure comparison monitoring unit outside the containment shell;

[0031] The containment shell pressure comparison and monitoring unit includes at least one containment shell pressure measuring instrument; each containment shell pressure measuring instrument is connected to the processor respectively;

[0032] The containment shell external pressure comparison and monitoring unit includes a first containment shell external pressure comparison and monitoring subunit and a second containment shell external pressure comparison and monitoring subunit;

[0033] The first containment shell external pressure comparison monitoring subunit includes a third containment shell penetration piece, a third containment shell external isolation valve and a third containment shell pressure measuring instrument; a first end of the third containment shell penetration piece is connected to the containment shell, a second end of the third containment shell penetration piece is connected to a first end of the third containment shell external isolation valve, a second end of the third containment shell external isolation valve is connected to a first end of the third containment shell pressure measuring instrument, and a second end of the third containment shell pressure measuring instrument is connected to the processor, for sending the flow measured by the third containment shell pressure measuring instrument to the processor;

[0034] The second containment shell external pressure comparison monitoring subunit includes a fourth containment shell penetration piece, a fourth containment shell external isolation valve and a fourth containment shell pressure measuring instrument; a first end of the fourth containment shell penetration piece is connected to the containment shell, a second end of the fourth containment shell penetration piece is connected to a first end of the fourth containment shell external isolation valve, a second end of the fourth containment shell external isolation valve is connected to a first end of the fourth containment shell pressure measuring instrument, and a second end of the fourth containment shell pressure measuring instrument is connected to the processor, for sending the flow measured by the fourth containment shell pressure measuring instrument to the processor;

[0035] The first containment shell external pressure ratio monitoring subunit and the second containment shell external pressure ratio monitoring subunit are respectively arranged on both sides of the containment shell in corresponding directions.

[0036] In one embodiment, the instrument monitoring assembly includes: a temperature instrument monitoring unit and a humidity instrument monitoring unit;

[0037] The temperature instrument monitoring unit includes at least one temperature instrument; each temperature instrument is connected to the processor and is used to send the temperature measured by each temperature instrument to the processor;

[0038] The humidity meter monitoring unit includes at least one humidity meter; each humidity meter is connected to the processor and is used to send the temperature measured by each humidity meter to the processor.

[0039] In one embodiment, the instrument monitoring component further includes: a hydrogen concentration monitoring unit, an alarm monitoring unit and other monitoring units; the hydrogen concentration monitoring unit, the alarm monitoring unit and the other monitoring units are respectively connected to the processor.

[0040] In a second aspect, the present application further provides a method for monitoring the overall leakage rate of a containment vessel. The monitoring method is applied to the overall leakage rate monitoring device of the containment vessel described in the first aspect, and the monitoring method includes:

[0041] Obtaining measurement parameters inside a nuclear reactor containment vessel;

[0042] Determine the monitoring result of the overall leakage rate of the containment according to the measurement parameters in the containment

[0043] In a third aspect, the present application also provides a device for monitoring the overall leakage rate of a containment vessel. The device comprises:

[0044] an acquisition module for acquiring measurement parameters inside the nuclear reactor containment vessel;

[0045] The determination module is used to determine the monitoring result of the overall leakage rate of the containment shell according to the measurement parameters in the containment shell.

[0046] In a fourth aspect, the present application further provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the method described in the second aspect when executing the computer program.

[0047] In a fifth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method described in the second aspect.

[0048] In a sixth aspect, the present application further provides a computer program product, wherein the computer program product comprises a computer program, and when the computer program is executed by a processor, the method described in the second aspect is implemented.

[0049] The above-mentioned containment overall leakage rate monitoring device and containment overall leakage rate monitoring method include a flow monitoring component, a pressure monitoring component, a pressure comparison monitoring component, an instrument monitoring component and a processor. By setting different monitoring components to monitor different types of parameters in the containment, the pressure relief flow value in the containment, the pressure value in the containment, the pressure comparison value between the inside and outside of the containment, and the temperature and humidity in the containment required for the containment leakage rate test are fully considered. The containment overall leakage rate monitoring device provided by this application can obtain accurate and complete data required for the calculation of the containment leakage rate, thereby providing a reasonable and scientific configuration method for the configuration of the nuclear reactor containment leakage rate test instrument, achieving a breakthrough in the configuration method of the nuclear reactor containment leakage rate test instrument; in addition, by connecting each monitoring component to the processor, the different types of parameter values ​​collected by each monitoring component can be input into the processor, and the processor calculates and processes the received data, and the overall leakage rate of the containment can be accurately obtained according to the processing results, thereby improving the efficiency of the containment overall leakage rate test and the accuracy of the monitoring results. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] FIG1 is a schematic diagram of a containment overall leakage rate monitoring device according to one embodiment;

[0051] FIG2 is a schematic diagram of a device for monitoring the overall leakage rate of a containment vessel according to another embodiment;

[0052] FIG3 is a schematic diagram of a device for monitoring the overall leakage rate of a containment vessel according to another embodiment;

[0053] FIG4 is a schematic diagram of a device for monitoring the overall leakage rate of a containment vessel according to another embodiment;

[0054] FIG5 is a schematic diagram of a device for monitoring the overall leakage rate of a containment vessel according to another embodiment;

[0055] FIG6 is a schematic diagram of a device for monitoring the overall leakage rate of a containment vessel according to another embodiment;

[0056] FIG7 is a schematic diagram of a device for monitoring the overall leakage rate of a containment vessel according to another embodiment;

[0057] FIG8 is a schematic diagram of a device for monitoring the overall leakage rate of a containment vessel according to another embodiment;

[0058] FIG9 is a schematic diagram of a device for monitoring the overall leakage rate of a containment vessel according to another embodiment;

[0059] FIG10 is a schematic diagram of a device for monitoring the overall leakage rate of a containment vessel according to another embodiment;

[0060] FIG11 is a schematic diagram of a device for monitoring the overall leakage rate of a containment vessel according to another embodiment;

[0061] FIG12 is a schematic diagram of a device for monitoring the overall leakage rate of a containment vessel according to another embodiment;

[0062] FIG13 is a schematic flow chart of a method for monitoring the overall leakage rate of a containment vessel according to one embodiment;

[0063] FIG14 is a structural block diagram of a device for monitoring the overall leakage rate of a containment vessel according to an embodiment;

[0064] FIG15 is a diagram showing the internal structure of a computer device according to one embodiment;

[0065] Description of reference numerals:

[0066] Flow monitoring component: 1; Pressure monitoring component: 2;

[0067] Pressure comparison monitoring components: 3; Instrument monitoring components: 4;

[0068] Processor: 5; First containment isolation valve unit: 10;

[0069] Drain unit: 11; Pressure relief pipeline monitoring unit: 12;

[0070] Second containment isolation valve unit: 20; Pressure measurement unit: 21;

[0071] Containment shell internal pressure comparison monitoring unit: 30; Containment shell external pressure comparison monitoring unit: 31;

[0072] Temperature instrument monitoring unit: 40; Humidity instrument monitoring unit: 41;

[0073] Hydrogen concentration monitoring unit: 42; Alarm monitoring unit: 43;

[0074] Other monitoring units: 44; First containment penetration: 101;

[0075] Isolation valve inside the first containment: 102; Isolation valve outside the first containment: 103;

[0076] First drain isolation valve: 111; Drain pit: 112;

[0077] Pressure relief line isolation valve: 121; Pressure relief line main flow regulating valve: 122;

[0078] Pressure relief pipeline test flow regulating valve: 123; Measuring orifice plate: 124;

[0079] Upstream flow measurement root valve: 125; Downstream flow measurement root valve: 126;

[0080] Flow measuring instrument: 127; Check valve: 128;

[0081] Second steam trap isolation valve: 129; Auxiliary exhaust valve: 130;

[0082] Depressurized main airflow discharge chamber: 131; Secondary containment penetration: 201;

[0083] Second containment internal isolation valve: 202; Second containment external isolation valve: 203;

[0084] First containment pressure measurement subunit: 211; Second containment pressure measurement subunit: 212;

[0085] Containment pressure measuring instrument: 301; First containment external pressure comparison monitoring subunit: 311;

[0086] Second containment shell external pressure comparison monitoring subunit: 312; Temperature instrument: 401;

[0087] Humidity meter: 402; First containment pressure measurement primary diaphragm valve: 2111;

[0088] Secondary diaphragm valve for pressure measurement of the first containment: 2112; Root valve for pressure measurement of the first containment: 2113;

[0089] First containment pressure measuring instrument: 2114; Second containment pressure measuring primary diaphragm valve: 2121;

[0090] Second containment pressure measurement secondary diaphragm valve: 2122; Second pressure measurement root valve: 2123;

[0091] Second containment pressure measuring instrument: 2124; Third containment penetration: 3111;

[0092] Third containment external isolation valve: 3112; Third containment pressure measuring instrument: 3113;

[0093] Fourth containment penetration: 3121; Fourth containment external isolation valve: 3122;

[0094] Fourth containment pressure measuring instrument: 3123. DETAILED DESCRIPTION

[0095] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0096] The purpose of the containment overall leakage rate test of a nuclear reactor in a nuclear power plant is to measure the overall leakage rate of the containment on a design pressure platform during the containment test to verify whether the containment's sealing meets the design requirements. Typically, the temperature, humidity and other data inside the containment are collected by a containment leakage rate data acquisition system, and the overall leakage rate of the containment is calculated using the collected data. At present, there is a lack of mature theoretical methods for configuring internal monitoring sensors in large spaces such as the containment. Most of them are based on empirical methods, selecting on-site survey methods, and manually selecting representative locations for the arrangement of monitoring sensors. Therefore, there is a problem in the traditional technology of lacking a configuration method for the overall leakage rate test instrumentation of the nuclear reactor containment in a nuclear power plant. Based on the above problems, the present application proposes a containment overall leakage rate monitoring device and a containment overall leakage rate monitoring method suitable for the overall leakage rate test of the nuclear reactor containment in a nuclear power plant to solve the problem of the lack of a configuration method for the overall leakage rate test instrumentation of the nuclear reactor containment.

[0097] In one embodiment, as shown in Figure 1, a device for monitoring the overall leakage rate of a containment shell is provided, and the monitoring device includes: a flow monitoring component 1, a pressure monitoring component 2, a pressure comparison monitoring component 3, an instrument monitoring component 4 and a processor 5; the flow monitoring component 1, the pressure monitoring component 2, the pressure comparison monitoring component 3 and the instrument monitoring component 4 are respectively connected to the processor 5; the flow monitoring component 1 is used to monitor the pressure relief flow value inside the containment shell; the pressure monitoring component 2 is used to monitor the pressure value inside the containment shell; the pressure comparison monitoring component 3 is used to monitor the pressure comparison value inside the containment shell and outside the containment shell; the instrument monitoring component 4 is used to monitor the temperature and humidity inside the containment shell; the processor 5 is used to obtain the overall leakage rate of the containment shell based on the pressure relief flow value, pressure value, pressure comparison value, temperature and humidity.

[0098] It should be noted that the containment vessel of a nuclear reactor refers to a vertical cylindrical hemispherical cover or spherical sealed metal or concrete shell that protects the main equipment of the nuclear reactor. The main power reactor equipment inside the containment vessel includes the reactor, steam generator, main pump, pressurizer, and coolant inlet and outlet pipe valves. The containment vessel is equipped with a spray system to release a large amount of spray water mist in the event of a serious accident to absorb radioactive iodine and flush radioactive dust inside the containment vessel. Therefore, maintaining the integrity of the containment vessel is of paramount importance, and an overall leak rate test is required to verify the containment vessel's sealing properties.

[0099] Among them, the flow monitoring component 1 is used to collect the pressure reduction flow value of the containment shell, the pressure monitoring component 2 is used to collect the pressure value inside the containment shell, and the pressure value can be the pressure value generated during the reaction of the nuclear reactor. The pressure comparison monitoring component 3 is used to calculate the comparison value of the pressure values ​​inside and outside the containment shell based on the collected pressure value inside the containment shell and the pressure value outside the containment shell. The instrument monitoring component is used to collect the temperature and humidity inside the containment shell. The processor 5 is used to calculate the overall leakage rate of the containment shell based on the parameter values ​​collected by different monitoring components.

[0100] In this embodiment, each monitoring component can be set at a corresponding position of the containment shell according to the type of data collected by each monitoring component. Different monitoring components are used to monitor different types of data. Each monitoring component can be connected to the processor 5 respectively to establish a connection channel between each monitoring component and the processor 5. When each monitoring component collects corresponding data, the collected data is transmitted to the processor 5 through the connection channel. Optionally, each monitoring component can be connected to the processor 5 by wire, or each monitoring component can be connected to the processor 5 wirelessly. This embodiment does not limit this.

[0101] The above-mentioned containment overall leakage rate monitoring device includes a flow monitoring component, a pressure monitoring component, a pressure comparison monitoring component, an instrument monitoring component and a processor. By setting different monitoring components to monitor different types of parameters in the containment, the pressure relief flow value in the containment, the pressure value in the containment, the pressure comparison value between the inside and outside of the containment, and the temperature and humidity in the containment required for the containment leakage rate test are fully considered. The containment overall leakage rate monitoring device provided by this application can obtain accurate and complete data required for the calculation of the containment leakage rate, thereby providing a reasonable and scientific configuration method for the configuration of the nuclear reactor containment leakage rate test instrument, achieving a breakthrough in the configuration method of the nuclear reactor containment leakage rate test instrument; in addition, by connecting each monitoring component to the processor, the different types of parameter values ​​collected by each monitoring component can be input into the processor, and the processor calculates and processes the received data, so that the overall leakage rate of the containment can be accurately obtained according to the processing results, thereby improving the efficiency of the containment overall leakage rate test and the accuracy of the monitoring results.

[0102] The specific contents of the flow monitoring assembly are described in detail below. In one embodiment, as shown in Figure 2, the flow monitoring assembly 1 includes: a first containment isolation valve unit 10, a drain unit 11, and a pressure relief line monitoring unit 12. The first containment isolation valve unit 10 is disposed within the containment shell; the drain unit 11 and the pressure relief line monitoring unit 12 are both disposed outside the containment shell; the first containment isolation valve unit 10 is connected to the drain unit 11, and the drain unit 11 is connected to the processor 5 via the pressure relief line monitoring unit 12, for transmitting the flow value monitored by the flow monitoring assembly to the processor 5.

[0103] The first containment isolation valve unit 10 is used to isolate the fluid generated by the nuclear reactor in the containment shell. At the same time, the flow rate of the depressurized fluid in the containment shell can also be adjusted by the first containment isolation valve unit 10.

[0104] It should be noted that in the overall leakage rate test of the containment, the depressurized gas will condense into water vapor. Therefore, a hydrophobic unit 11 can be set in the flow monitoring component 1 to collect condensed water that may exist in the depressurization stage and the pressurization stage of the overall leakage rate test of the containment.

[0105] The pressure relief pipeline monitoring unit 12 can be used to monitor the discharge of pressure relief gas from the containment vessel during the pressure reduction phase of the overall leakage rate test.

[0106] As an optional embodiment, as shown in Figure 3, the first containment isolation valve unit 10 includes: a first containment penetration piece 101, a first containment internal isolation valve 102, and a first containment external isolation valve 103; the first containment internal isolation valve 102 is arranged inside the containment shell, and the first containment external isolation valve 103 is arranged outside the containment shell; the first end of the first containment internal isolation valve 102 is arranged inside the containment shell, the second end of the first containment internal isolation valve 102 is connected to the first end of the first containment penetration piece 101, and the second end of the first containment penetration piece 101 is connected to the first end of the first containment external isolation valve 103.

[0107] Among them, the first safety penetration component 101 is a device for connecting the inside and outside of the containment shell, which can be set on the containment shell. The first containment shell isolation valve 102 can be set in the containment shell to control the gas flow in the containment shell. Optionally, the first containment shell isolation valve 102 can be a manual isolation valve, or the first containment shell isolation valve 102 can also be an automatic isolation valve. The first containment shell isolation valve 103 can be set outside the containment shell to receive the fluid in the containment shell transmitted by the first containment shell isolation valve 102 through the first containment shell penetration component 101.

[0108] As another optional embodiment, as shown in Figure 4, the drain unit 11 includes: a first drain isolation valve 111 and a drain pit 112; the first end of the first drain isolation valve 111 is connected to the drain pit 112, and the second end of the first drain isolation valve 111 is connected to the second end of the first containment shell external isolation valve 103.

[0109] Among them, the drain pit 112 can be set at a lower position outside the containment shell, and the first drain isolation valve 111 can receive the condensate in the containment shell transmitted by the first containment shell external isolation valve 103 by connecting to the first containment shell external isolation valve 103, and transmit the condensate to the drain pit 112.

[0110] As another optional embodiment, as shown in Figure 5, the pressure relief pipeline monitoring unit 12 includes: a pressure relief pipeline isolation valve 121, a pressure relief pipeline main flow regulating valve 122, a pressure relief pipeline test flow regulating valve 123, a measuring orifice 124, an upstream flow measurement root valve 125, a downstream flow measurement root valve 126, a flow measuring instrument 127, a check valve 128, a second hydrophobic isolation valve 129, an auxiliary exhaust valve 130 and a pressure relief main airflow discharge chamber 131; the first end of the pressure relief pipeline isolation valve 121 is connected to the first end of the first containment shell external isolation valve 103, the second end of the first hydrophobic isolation valve 111, and the convergence point of the first end of the pressure relief pipeline test flow regulating valve, and the second end of the pressure relief pipeline test flow regulating valve is connected to the measuring orifice 124; the second end of the pressure relief pipeline isolation valve 121 is connected to the first end of the pressure relief pipeline main flow regulating valve 122, and the pressure relief pipeline The second end of the line main flow regulating valve 122 is respectively connected to the measuring orifice 124, and the first end of the check valve 128, the first end of the second steam trap, the first end of the auxiliary exhaust valve 130, and the convergence point of the pressure relief main airflow discharge chamber 131; the measuring orifice 124 is also respectively connected to the first end of the upstream flow measurement root valve 125 and the first end of the downstream flow measurement root valve 126, the second end of the upstream flow measurement root valve 125 and the second end of the downstream flow measurement root valve 126 are both connected to the first end of the flow measuring instrument 127, the second end of the flow measuring instrument 127 is connected to the processor 5, for sending the flow measured by the flow measuring instrument 127 to the processor 5; the second end of the check valve 128 is respectively connected to the first end of the second steam trap isolation valve 129 and the auxiliary exhaust valve 130, and the second end of the auxiliary exhaust valve 130 is connected to the pressure relief main airflow discharge chamber 131.

[0111] It can be understood that the first end of the first containment shell external isolation valve 103, the second end of the first hydrophobic isolation valve 111, and the first end of the pressure relief line test flow regulating valve 123 can be connected through the same convergence point, so that the first end of the pressure relief line isolation valve 121 is connected to the above-mentioned convergence point, and the pressure flow that needs to be discharged from the containment shell transmitted through the first containment shell external isolation valve 103 can be adjusted by the pressure relief line test flow regulating valve 123, so that the adjusted pressure flow is transmitted to the measuring orifice plate 124 through the pressure relief line test flow regulating valve 123, and the value is transmitted to the upstream flow measurement root valve 125 through the measuring orifice plate 124, and is transmitted to the flow measurement instrument 127 through the upstream flow measurement root valve 125 to collect the flow value of the upstream pressure in the containment shell.

[0112] By connecting the second end of the pressure relief line isolation valve 121 to the pressure relief line main flow regulating valve 122, the pressure flow transmitted through the pressure relief line isolation valve 121 can be adjusted, and the adjusted pressure value is transmitted to the downstream flow measurement root valve 126 through the measuring orifice plate 124, and then transmitted to the flow measurement instrument 127 through the downstream flow measurement root valve 126 to collect the flow value of the downstream pressure in the containment shell.

[0113] The collected flow values ​​of the upstream pressure in the containment shell and the flow values ​​of the downstream pressure in the containment shell are transmitted to the processor 5 through the flow measuring instrument 127, so that the processor 5 calculates the collected pressure flow values ​​and obtains the overall leakage rate of the containment shell according to the calculation results.

[0114] By connecting the main flow regulating valve 122 of the pressure relief pipeline to the check valve 128, and respectively connecting the second steam trap, the auxiliary scheduling valve and the pressure relief main airflow discharge chamber 131 through the check valve 128, the regulated pressure flow can be transmitted to the pressure relief main airflow discharge chamber 131, and discharged from the containment shell through the pressure relief main airflow discharge chamber 131, wherein the check valve 128 can prevent the pressure from flowing back into the containment shell.

[0115] In this embodiment, the flow monitoring component can accurately collect the pressure relief flow value of the fluid in the containment shell through the first containment shell isolation valve unit, so that the collected pressure relief flow value of the fluid can be transmitted to the processor through the hydrophobic unit and the pressure relief pipeline monitoring unit, and the pressure relief flow value in the containment shell can be accurately obtained; in addition, since the collected fluid flow value is transmitted to the processor, the flow value can be calculated by the processor, thereby improving the accuracy of the overall leakage rate of the containment shell calculated based on the pressure relief flow value.

[0116] The following describes the specific contents of the pressure monitoring assembly 2 in detail. In one embodiment, as shown in FIG6 , the pressure monitoring assembly 2 includes: a second containment isolation valve unit 20 and a pressure measurement unit 21 ; the second containment isolation valve unit 20 is connected to the processor 5 via the pressure measurement unit 21 , and is configured to transmit the pressure value monitored by the pressure monitoring assembly 2 to the processor 5 .

[0117] As an optional embodiment, as shown in Figure 7, the second containment isolation valve unit 20 includes: a second containment penetration piece 201, a second containment internal isolation valve 202, and a second containment external isolation valve 203; the second containment internal isolation valve 202 is arranged inside the containment shell, and the second containment external isolation valve 203 is arranged outside the containment shell; the first end of the second containment internal isolation valve 202 is arranged inside the containment shell, the second end of the second containment internal isolation valve 202 is connected to the first end of the second containment penetration piece 201, and the second end of the second containment penetration piece 201 is connected to the first end of the second containment external isolation valve 203.

[0118] In this embodiment, the second containment isolation valve 202 can be set in the containment shell, and the second containment external isolation valve 203 can obtain the pressure value in the containment shell collected by the second containment isolation valve 202 through the second containment shell penetration piece 201.

[0119] As another optional embodiment, as shown in Figure 8, the pressure measuring unit 21 includes: a first containment pressure measuring subunit 211 and a second containment pressure measuring subunit 212; the first containment pressure measuring subunit 211 is respectively connected to the second end of the second containment external isolation valve 203 and the second containment pressure measuring subunit 212; the first containment pressure measuring subunit 211 and the second containment pressure measuring subunit 212 are arranged in parallel for mutual verification of the measured pressure values.

[0120] It is understandable that in order to improve the accuracy of the collected pressure values, two groups of containment pressure measurement subunits can be set to collect pressure values, and by setting the two groups of containment pressure measurement subunits to collect pressure values ​​in parallel, the collected results can be verified with each other.

[0121] As shown in Figure 9, the first containment pressure measurement subunit 211 includes: a first containment pressure measurement primary diaphragm valve 2111, a first containment pressure measurement secondary diaphragm valve 2112, a first pressure measurement root valve 2113 and a first containment pressure measuring instrument 2114; the first end of the first containment pressure measurement primary diaphragm valve 2111 is connected to the second end of the second containment external isolation valve 203, the second end of the first containment pressure measurement primary diaphragm valve 2111 is connected to the convergence point of the first end of the first containment pressure measurement secondary diaphragm valve 2112 and the first end of the first pressure measurement root valve 2113, the second end of the first pressure measurement root valve 2113 is connected to the first end of the first containment pressure measuring instrument 2114, and the second end of the first containment pressure measuring instrument 2114 is connected to the processor 5, for sending the flow measured by the first containment pressure measuring instrument 2114 to the processor 5.

[0122] As shown in Figure 10, the second containment pressure measurement subunit 212 includes: a second containment pressure measurement primary diaphragm valve 2121, a second containment pressure measurement secondary diaphragm valve 2122, a second pressure measurement root valve 2123 and a second containment pressure measuring instrument 2124; the first end of the second containment pressure measurement primary diaphragm valve 2121 is connected to the convergence point of the first end of the first containment pressure measurement primary diaphragm valve 2111 and the first end of the second containment external isolation valve 203, the second end of the second containment pressure measurement primary diaphragm valve 2121 is connected to the convergence point of the first end of the second containment pressure measurement secondary diaphragm valve 2122 and the first end of the second pressure measurement root valve 2123, the second end of the second pressure measurement root valve 2123 is connected to the second containment pressure measuring instrument 2124, and the second end of the second containment pressure measuring instrument 2124 is connected to the processor 5, for sending the flow measured by the second containment pressure measuring instrument 2124 to the processor 5.

[0123] In this embodiment, the first containment pressure measuring subunit 211 can obtain the pressure value inside the containment shell through the second containment external isolation valve 203, and transmit the obtained pressure value inside the containment shell to the first containment pressure measuring instrument 2114, and the first containment pressure measuring instrument 2114 transmits the pressure value to the processor 5. The second containment measuring subunit can also obtain the pressure value inside the containment shell through the second containment external isolation valve 203, and transmit the obtained pressure value inside the containment shell to the second containment pressure measuring instrument 2124301, and the second containment pressure measuring instrument 2124 transmits the pressure value to the processor 5. After receiving the two sets of pressure values, the processor 5 can compare the two sets of pressure values ​​to determine the error value of the collected pressure values ​​to improve the accuracy of the pressure values ​​collected by the pressure monitoring component 2.

[0124] In this embodiment, the pressure monitoring component can accurately collect the pressure value inside the containment shell through the second containment shell isolation valve unit, so that the collected pressure value can be transmitted to the processor through the pressure measuring unit, and the pressure value inside the containment shell can be accurately obtained; in addition, since the collected pressure value is transmitted to the processor, the pressure value can be calculated by the processor, thereby improving the accuracy of the overall leakage rate of the containment shell calculated based on the pressure value.

[0125] The following describes in detail the specific contents of the pressure comparison monitoring component 3. In one embodiment, as shown in FIG11 , the pressure comparison monitoring component 3 includes: a containment internal pressure comparison monitoring unit 30 and a containment external pressure comparison monitoring unit 31; the containment internal pressure comparison monitoring unit 30 includes at least one containment pressure measuring instrument 301; each containment pressure measuring instrument 301 is respectively connected to the processor 5; and the containment external pressure comparison monitoring unit 31 includes a first containment external pressure comparison monitoring subunit 311 and a second containment external pressure comparison monitoring subunit 312.

[0126] Please continue to refer to Figure 11. For example, the first containment shell external pressure comparison monitoring subunit 311 includes a third containment shell penetration piece 3111, a third containment shell external isolation valve 3112 and a third containment shell pressure measuring instrument 3113; the first end of the third containment shell penetration piece 3111 is connected to the containment shell, the second end of the third containment shell penetration piece 3111 is connected to the first end of the third containment shell external isolation valve 3112, the second end of the third containment shell external isolation valve 3112 is connected to the first end of the third containment shell pressure measuring instrument 3113, and the second end of the third containment shell pressure measuring instrument 3113 is connected to the processor 5, for sending the flow measured by the third containment shell pressure measuring instrument 3113 to the processor 5.

[0127] Please continue to refer to Figure 11. For example, the second containment shell external pressure comparison monitoring subunit 312 includes a fourth containment shell penetration piece 3121, a fourth containment shell external isolation valve 3122 and a fourth containment shell pressure measuring instrument 3123; the first end of the fourth containment shell penetration piece 3121 is connected to the containment shell, the second end of the fourth containment shell penetration piece 3121 is connected to the first end of the fourth containment shell external isolation valve 3122, the second end of the fourth containment shell external isolation valve 3122 is connected to the first end of the fourth containment shell pressure measuring instrument 3123, and the second end of the fourth containment shell pressure measuring instrument 3123 is connected to the processor 5, for sending the flow measured by the fourth containment shell pressure measuring instrument 3123 to the processor 5.

[0128] It is understood that a nuclear reactor containment vessel is generally a large space. Therefore, two sets of containment external pressure comparison monitoring subunits can be installed at different locations within the containment vessel to measure the external pressure of the containment vessel. Specifically, the first and second containment external pressure comparison monitoring subunits 311 and 312 are installed on opposite sides of the containment vessel in corresponding directions to improve the accuracy of the measured external pressure of the containment vessel.

[0129] In this embodiment, the pressure comparison monitoring component is respectively provided with a pressure comparison monitoring unit inside the containment shell and a pressure comparison monitoring unit outside the containment shell. The containment shell pressure measuring instrument in the pressure comparison monitoring unit inside the containment shell can accurately measure the pressure value inside the containment shell, and the collected pressure value is transmitted to the processor. The first pressure comparison monitoring subunit outside the containment shell and the second pressure comparison monitoring subunit outside the containment shell in the pressure comparison monitoring unit outside the containment shell can respectively and accurately collect the pressure values ​​outside the containment shell at different positions of the containment shell, and then the accurate pressure comparison value inside the containment shell and the pressure value outside the containment shell can be obtained according to the pressure value inside the containment shell and the pressure value outside the containment shell. In addition, since the collected pressure value can be transmitted to the processor, the pressure comparison value inside the containment shell and the pressure value outside the containment shell can be quickly obtained by the processor, thereby improving the accuracy and efficiency of obtaining the pressure comparison value.

[0130] The specific contents of the instrument monitoring component are described in detail below. In one embodiment, as shown in Figure 12, the instrument monitoring component 4 includes: a temperature instrument monitoring unit 40 and a humidity instrument monitoring unit 41; the temperature instrument monitoring unit 40 includes at least one temperature instrument 401; each temperature instrument 401 is connected to the processor 5, and is used to send the temperature measured by each temperature instrument 401 to the processor 5; the humidity instrument monitoring unit 41 includes at least one humidity instrument 411; each humidity instrument 411 is connected to the processor 5, and is used to send the temperature measured by each humidity instrument 411 to the processor 5.

[0131] As an optional embodiment, please continue to refer to Figure 12, the instrument monitoring component also includes: a hydrogen concentration monitoring unit 42, an alarm monitoring unit 43 and other monitoring units 44; the hydrogen concentration monitoring unit, the alarm monitoring unit and other monitoring units are respectively connected to the processor.

[0132] As an optional implementation, the temperature meter 401 and the humidity meter 402 set in the containment can be set according to the principle of large space unit division. Optionally, the division principle can be that the maximum solvent coefficient of each meter is less than or equal to 1. The division principle can also be to set the number of temperature meters according to the temperature energy field in the containment, or to set the number of humidity meters according to the humidity energy field in the containment.

[0133] For a containment vessel equipped with a built-in large water tank or water pool for refueling, during the process of conducting a containment vessel overall leakage rate test using the containment vessel overall leakage rate monitoring device provided in this application, it is necessary to temporarily close the control body of the built-in large water tank or water pool according to the characteristics of the built-in large water tank or water pool for refueling, so as to eliminate the influence of the built-in large water tank or water pool being full of water on the overall humidity in the containment vessel during the containment vessel overall leakage rate test, effectively reduce the number of humidity instruments configured, and ensure the accuracy of the humidity instrument measurement.

[0134] In this embodiment, the instrument monitoring component can accurately collect the temperature inside the containment shell through the temperature instrument monitoring unit, and accurately collect the humidity inside the containment shell through the humidity instrument monitoring unit, thereby improving the accuracy of obtaining the temperature and humidity inside the containment shell; since the collected temperature and humidity can be connected to the processor, the temperature and humidity can be quickly converted into parameters related to the overall leakage rate of the containment shell through the processor, thereby improving the accuracy of the determined overall leakage rate of the containment shell.

[0135] It should be noted that if the containment is single-layer, only the spatial extent encompassed by the inner wall of the containment needs to be considered. The monitoring components of the containment overall leakage rate monitoring device provided herein can be configured based on the actual geometric dimensions and parameters of the containment. Optionally, the equipment configured within the containment can include a large-space hydrogen removal unit (such as a passive hydrogen recombiner), an igniter, a zeolite hydrogen removal unit, an air purification unit, a radionuclide or other airborne contaminant absorption unit, and other devices.

[0136] In one embodiment, the present application further provides a method for monitoring the overall leakage rate of a containment vessel, which can be applied to the overall leakage rate monitoring device of a containment vessel described in any of the above embodiments. As shown in FIG13 , the method includes:

[0137] S601, obtaining measurement parameters inside a nuclear reactor containment vessel.

[0138] The measured parameters may include a pressure relief flow value inside the containment shell, a pressure value inside the containment shell, a pressure comparison value between the pressure inside the containment shell and the pressure outside the containment shell, and a temperature and humidity inside the containment shell.

[0139] In this embodiment, the flow monitoring component can be set to collect the pressure relief flow value inside the containment shell, the pressure monitoring component can be set to collect the pressure value inside the containment shell, the pressure comparison monitoring component can be set to collect the pressure comparison value inside the containment shell and outside the containment shell, and the instrument monitoring component can be set to collect the temperature and humidity inside the containment shell, thereby obtaining the measurement parameters inside the containment shell of the nuclear reactor.

[0140] S602: Determine the monitoring result of the overall leakage rate of the containment according to the measurement parameters inside the containment.

[0141] In this embodiment, the measurement parameters obtained inside the containment shell can be transmitted to the processor, and the received measurement parameters can be calculated by the processor, and the measurement parameters can be converted into parameter values ​​related to the overall leakage rate of the containment shell according to the corresponding conversion formula, thereby obtaining the overall leakage rate of the containment shell, and the monitoring result of the overall leakage rate of the containment shell is determined based on the overall leakage rate of the containment shell.

[0142] In this embodiment, by obtaining the measurement parameters inside the nuclear reactor containment shell, the measurement parameters inside the containment shell can be calculated to obtain an accurate overall leakage rate of the containment shell, so that the sealing of the containment shell can be evaluated based on the overall leakage rate of the containment shell, thereby improving the accuracy of the evaluation of the sealing of the containment shell.

[0143] It should be understood that, although the various steps in the flow charts involved in the above embodiments are shown in sequence according to the indications of the arrows, these steps are not necessarily performed in sequence according to the order indicated by the arrows. Unless clearly stated herein, the execution of these steps is not strictly limited in order, and these steps can be performed in other orders. Moreover, at least a portion of the steps in the flow charts involved in the above embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily performed at the same time, but can be performed at different times, and the execution order of these steps or stages is not necessarily performed in sequence, but can be performed in turn or alternately with at least a portion of the steps or stages in other steps or other steps.

[0144] Based on the same inventive concept, embodiments of the present application also provide a device for monitoring the overall containment leakage rate of a containment vessel for implementing the aforementioned method for monitoring the overall containment leakage rate. The solution provided by this device is similar to the solution described in the aforementioned method. Therefore, the specific limitations of one or more of the following embodiments for monitoring the overall containment leakage rate can be found in the aforementioned limitations of the method for monitoring the overall containment leakage rate, and will not be further elaborated here.

[0145] In one embodiment, as shown in FIG14 , a device for monitoring the overall leakage rate of a containment vessel is provided, comprising: an acquisition module 70 and a determination module 71 , wherein:

[0146] The acquisition module 70 is used to acquire measurement parameters inside the containment vessel of the nuclear reactor.

[0147] The determination module 71 is used to determine the monitoring result of the overall leakage rate of the containment shell according to the measurement parameters in the containment shell.

[0148] The device for monitoring the overall leakage rate of a containment vessel provided in this embodiment can execute the above method embodiment. Its implementation principle and technical effects are similar and will not be described in detail here.

[0149] Each module in the aforementioned containment overall leakage rate monitoring device may be implemented in whole or in part through software, hardware, or a combination thereof. Each module may be embedded in or independent of a processor within a computer device in the form of hardware, or may be stored in a computer device memory in the form of software, allowing the processor to call and execute the corresponding operations of each module.

[0150] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the following steps are implemented:

[0151] Obtaining measurement parameters inside a nuclear reactor containment vessel;

[0152] Based on the measurement parameters inside the containment shell, the monitoring results of the overall leakage rate of the containment shell are determined.

[0153] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0154] Obtaining measurement parameters inside a nuclear reactor containment vessel;

[0155] Based on the measurement parameters inside the containment shell, the monitoring results of the overall leakage rate of the containment shell are determined.

[0156] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0157] Obtaining measurement parameters inside a nuclear reactor containment vessel;

[0158] Based on the measurement parameters inside the containment shell, the monitoring results of the overall leakage rate of the containment shell are determined.

[0159] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, database or other media used in the embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory may 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 may include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, distributed databases based on blockchains. The processor involved in the various embodiments provided herein may be a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, etc., but are not limited to these.

[0160] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, 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.

[0161] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A containment overall leakage rate monitoring device, characterized in that: The monitoring device comprises: a flow monitoring component, a pressure monitoring component, a pressure comparison monitoring component, an instrument monitoring component and a processor; the flow monitoring component, the pressure monitoring component, the pressure comparison monitoring component and the instrument monitoring component are respectively connected to the processor; The flow monitoring component is used to monitor the pressure relief flow value in the containment shell; The pressure monitoring assembly is used to monitor the pressure value inside the containment shell; The pressure comparison monitoring component is used to monitor the pressure comparison value inside the containment shell and outside the containment shell; The instrument monitoring assembly is used to monitor the temperature and humidity inside the containment shell; The processor is used to obtain the overall leakage rate of the containment according to the pressure relief flow value, the pressure value, the pressure comparison value, and the temperature and humidity.

2. The monitoring device according to claim 1, characterized in that: The flow monitoring component includes: a first containment isolation valve unit, a drain unit and a pressure relief pipeline monitoring unit; the drain unit and the pressure relief pipeline monitoring unit are both arranged outside the containment shell; the first containment isolation valve unit is connected to the drain unit, and is connected to the processor through the pressure relief pipeline monitoring unit, so as to send the flow value monitored by the flow monitoring component to the processor.

3. The monitoring device according to claim 2, characterized in that: The first containment isolation valve unit comprises: a first containment penetration piece, a first containment internal isolation valve, and a first containment external isolation valve; the first containment internal isolation valve is arranged inside the containment shell, and the first containment external isolation valve is arranged outside the containment shell; the first end of the first containment internal isolation valve is arranged inside the containment shell, the second end of the first containment internal isolation valve is connected to the first end of the first containment penetration piece, and the second end of the first containment penetration piece is connected to the first end of the first containment external isolation valve.

4. The monitoring device according to claim 3, characterized in that: The drain unit comprises: a first drain isolation valve and a drain pit; a first end of the first drain isolation valve is connected to the drain pit, and a second end of the first drain isolation valve is connected to a second end of the first containment shell external isolation valve.

5. The monitoring device according to claim 4, characterized in that: The pressure relief pipeline monitoring unit comprises: a pressure relief pipeline isolation valve, a pressure relief pipeline main flow regulating valve, a pressure relief pipeline test flow regulating valve, a measuring orifice plate, an upstream flow measurement root valve, a downstream flow measurement root valve, a flow measurement instrument, a check valve, a second drain isolation valve, an auxiliary exhaust valve and a pressure relief main airflow discharge chamber; The first end of the pressure relief line isolation valve is connected to the first end of the first containment shell external isolation valve, the second end of the first steam trap isolation valve, and the first end of the pressure relief line test flow regulating valve, and the second end of the pressure relief line test flow regulating valve is connected to the measuring orifice plate; The second end of the pressure relief line isolation valve is connected to the first end of the pressure relief line main flow regulating valve, and the second end of the pressure relief line main flow regulating valve is respectively connected to the measuring orifice plate, the first end of the check valve, the first end of the second steam trap, the first end of the auxiliary exhaust valve, and the convergence point of the pressure relief main airflow discharge chamber; The measuring orifice plate is also connected to the first end of the upstream flow measurement root valve and the first end of the downstream flow measurement root valve respectively, and the second end of the upstream flow measurement root valve and the second end of the downstream flow measurement root valve are both connected to the flow measurement instrument A first end of the flow measuring instrument is connected to the processor, and a second end of the flow measuring instrument is connected to the processor, and is used to send the flow measured by the flow measuring instrument to the processor; The second end of the check valve is connected to the first end of the second drain isolation valve and the auxiliary exhaust valve respectively, and the second end of the auxiliary exhaust valve is connected to the pressure-relief main airflow discharge chamber.

6. The monitoring device according to claim 1, characterized in that: The pressure monitoring assembly includes: a second containment isolation valve unit and a pressure measuring unit; the second containment isolation valve unit is connected to the processor via the pressure measuring unit, and is used to send the pressure value monitored by the pressure monitoring assembly to the processor.

7. The monitoring device according to claim 6, characterized in that: The second containment isolation valve unit comprises: a second containment penetration, a second containment internal isolation valve, and a second containment external isolation valve; the second containment internal isolation valve is arranged inside the containment shell, and the second containment external isolation valve is arranged outside the containment shell; the first end of the second containment internal isolation valve is arranged inside the containment shell, the second end of the second containment internal isolation valve is connected to the first end of the second containment penetration, and the second end of the second containment penetration is connected to the first end of the second containment external isolation valve.

8. The monitoring device according to claim 7, characterized in that: The pressure measuring unit comprises: a first containment pressure measuring subunit and a second containment pressure measuring subunit; the first containment pressure measuring subunit is connected to the second end of the second containment external isolation valve and the second containment pressure measuring subunit respectively; The first containment pressure measuring subunit and the second containment pressure measuring subunit are arranged in parallel to verify the measured pressure values ​​with each other.

9. The monitoring device according to claim 8, characterized in that: The first containment pressure measurement subunit comprises: a first containment pressure measurement primary diaphragm valve, a first containment pressure measurement secondary diaphragm valve, a first pressure measurement root valve and a first containment pressure measurement instrument; The first end of the first containment pressure measurement primary diaphragm valve is connected to the second end of the second containment external isolation valve, the second end of the first containment pressure measurement primary diaphragm valve is connected to the convergence point of the first end of the first containment pressure measurement secondary diaphragm valve and the first end of the first pressure measurement root valve, the second end of the first pressure measurement root valve is connected to the first end of the first containment pressure measuring instrument, and the second end of the first containment pressure measuring instrument is connected to the processor for sending the flow measured by the first containment pressure measuring instrument to the processor.

10. The monitoring device according to claim 9, characterized in that: The second containment pressure measurement subunit comprises: a second containment pressure measurement primary diaphragm valve, a second containment pressure measurement secondary diaphragm valve, a second pressure measurement root valve and a second containment pressure measurement instrument; The first end of the second containment pressure measurement primary diaphragm valve is connected to the convergence point of the first end of the first containment pressure measurement primary diaphragm valve and the first end of the second containment external isolation valve, the second end of the second containment pressure measurement primary diaphragm valve is connected to the convergence point of the first end of the second containment pressure measurement secondary diaphragm valve and the first end of the second pressure measurement root valve, the second end of the second pressure measurement root valve is connected to the second containment pressure measuring instrument, and the second end of the second containment pressure measuring instrument is connected to the processor for sending the flow measured by the second containment pressure measuring instrument to the processor.

11. The monitoring device according to claim 1, characterized in that: The pressure comparison monitoring assembly comprises: a pressure comparison monitoring unit inside the containment shell and a pressure comparison monitoring unit outside the containment shell; The containment shell pressure comparison monitoring unit comprises at least one containment shell pressure measuring instrument; Full-shell pressure measuring instruments are respectively connected to the processors; The containment shell external pressure comparison and monitoring unit comprises a first containment shell external pressure comparison and monitoring subunit and a second containment shell external pressure comparison and monitoring subunit; The first containment shell external pressure comparison monitoring subunit comprises a third containment shell penetration piece, a third containment shell external isolation valve and a third containment shell pressure measuring instrument; the first end of the third containment shell penetration piece is connected to the containment shell, the second end of the third containment shell penetration piece is connected to the first end of the third containment shell external isolation valve, the second end of the third containment shell external isolation valve is connected to the first end of the third containment shell pressure measuring instrument, and the second end of the third containment shell pressure measuring instrument is connected to the processor, for sending the flow measured by the third containment shell pressure measuring instrument to the processor; The second containment shell external pressure comparison monitoring subunit comprises a fourth containment shell penetration piece, a fourth containment shell external isolation valve and a fourth containment shell pressure measuring instrument; the first end of the fourth containment shell penetration piece is connected to the containment shell, the second end of the fourth containment shell penetration piece is connected to the first end of the fourth containment shell external isolation valve, the second end of the fourth containment shell external isolation valve is connected to the first end of the fourth containment shell pressure measuring instrument, and the second end of the fourth containment shell pressure measuring instrument is connected to the processor, for sending the flow measured by the fourth containment shell pressure measuring instrument to the processor; The first containment shell external pressure comparison monitoring subunit and the second containment shell external pressure comparison monitoring subunit are respectively arranged on both sides of the containment shell in corresponding directions.

12. The monitoring device according to claim 1, characterized in that: The instrument monitoring assembly includes: a temperature instrument monitoring unit and a humidity instrument monitoring unit; The temperature instrument monitoring unit includes at least one temperature instrument; each of the temperature instruments is connected to the processor, and is used to send the temperature measured by each of the temperature instruments to the processor; The humidity meter monitoring unit includes at least one humidity meter; each humidity meter is connected to the processor and is used to send the temperature measured by each humidity meter to the processor.

13. The monitoring device according to claim 12, characterized in that: The instrument monitoring component also includes: a hydrogen concentration monitoring unit, an alarm monitoring unit and other monitoring units; the hydrogen concentration monitoring unit, the alarm monitoring unit and the other monitoring units are respectively connected to the processor.

14. A method for monitoring the overall leakage rate of a containment vessel, characterized in that: The monitoring method is applied to the containment overall leakage rate monitoring device according to any one of claims 1 to 13, and the monitoring method comprises: Obtaining measurement parameters inside a nuclear reactor containment vessel; The monitoring result of the overall leakage rate of the containment is determined according to the measurement parameters in the containment.

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