Diagnostic device and pressurization test system for containment pressurization test

Abstract

The present application relates to a diagnostic device for containment pressurization test and a pressurization test system, wherein the diagnostic device comprises a housing assembly, a temperature measuring assembly accommodated in the housing assembly and a controller; the housing assembly comprises an inner cavity and a insertion port connected with the inner cavity, the insertion port is used for placing a temperature sensing unit or a temperature standard source in the inner cavity; the temperature measuring assembly is used for collecting the temperature of the inner cavity to generate reference temperature data and transmitting the reference temperature data to the controller; the controller is connected with the collector, used for receiving the sensing temperature data and outputting a first diagnostic result after comparing the sensing temperature data with the reference temperature data; and the controller is used for receiving and calculating the deviation of multiple groups of reference source data to output a second diagnostic result; the authenticity and effectiveness of the temperature data collected by the collector and the authenticity and effectiveness of the temperature data collected by the temperature sensing unit are ensured, so that the accuracy of the overall leakage rate calculation of the containment is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of nuclear power, in particular to a diagnostic device for containment pressure test and a pressure test system. BACKGROUND

[0002] The containment pressure test is an extremely important implementation project of the nuclear power station, and its result is related to the real evaluation of the last safety barrier of the nuclear power.

[0003] In the containment pressure test, the overall leakage rate of the containment needs to be calculated. The overall leakage rate of the containment 200 is calculated by obtaining a large amount of pressure, temperature and humidity data. Due to the huge volume of the containment 200, the temperature difference from bottom to top is huge. In order to accurately calculate the overall leakage rate of the containment 200 under the pressure platform of 4.2 bar.g, the containment 200 is divided into multiple regions (a total of 59 in the related art) to more accurately evaluate the temperature data of the containment 200. Therefore, temperature sensing units 301 and temperature standard sources 302 (a total of 59 in the related art) need to be installed in each region of the containment 200. The data measured by these sensors is transmitted to the collector 303 outside the containment 200 through a wired network, the EPP system (containment leakage detection system) network. For details, please refer to Figure 1 .

[0004] Temperature is one of the most important parameters for calculating the leakage rate in the test. Therefore, how to ensure that the temperature sensing unit 301 can work normally after installation and accurately reflect the environmental data inside the containment 200 is crucial.

[0005] However, in practice, there are always problems such as:

[0006] 1. Installation is not in place (such as poor wiring, poor placement of contacts, etc.), which leads to the inability to obtain real data;

[0007] 2. The temperature sensing unit 301 is affected by the surrounding ventilation system, and the measured temperature fluctuates greatly, misleading the engineer to misjudge that the problem comes from the detection source, the temperature sensing unit 301, or from the transmission process, the EPP system network 304, which wastes a lot of personnel, time and radiation dose to troubleshoot;

[0008] 3. The temperature standard source 302 and the temperature sensing unit 301 may be miscontacted after installation, causing abnormal operation;

[0009] 4. The temperature standard source 302 and the temperature sensing unit 301 cannot be quickly and effectively verified for errors after installation. SUMMARY

[0010] The technical problems solved by the present application at least include how to ensure the authenticity and effectiveness of the temperature data collected by the collector, and provide an improved diagnostic device for a containment pressure test and a pressure test system.

[0011] The technical solution adopted by the present application to solve the technical problems is: a diagnostic device for a containment pressure test is constructed, the containment is provided with a temperature sensing unit and a temperature standard source for the pressure test, and the temperature sensing unit or the temperature standard source is connected to a collector outside the containment through an EPP system network; the collector is used to receive sensing temperature data collected by the temperature sensing unit and a plurality of groups of reference source data fed back by the temperature standard source;

[0012] The diagnostic device comprises a shell assembly, a temperature measuring assembly accommodated in the shell assembly, and a controller;

[0013] The shell assembly comprises an inner cavity and a insertion port communicating with the inner cavity, and the insertion port is used for arranging the temperature sensing unit or the temperature standard source in the inner cavity;

[0014] The temperature measuring assembly is used to collect the temperature of the inner cavity to generate reference temperature data, and transmit the reference temperature data to the controller;

[0015] The controller is connected with the collector, and is used to receive the sensing temperature data and compare the sensing temperature data with the reference temperature data, and then output a first diagnostic result reflecting whether the temperature sensor works normally; the controller is also used to receive and calculate the deviation of a plurality of groups of reference source data, and then output a second diagnostic result reflecting whether the EPP system network transmission is normal.

[0016] Preferably, the shell assembly comprises a barrel and an insertion pipe arranged at the top of the barrel; the barrel is used to define the inner cavity; the insertion pipe communicates with the barrel, and the insertion port is arranged at the end of the insertion pipe away from the barrel.

[0017] Preferably, the insertion pipe is detachably embedded in the top of the barrel.

[0018] Preferably, the diagnostic device further comprises a heating assembly arranged in the inner cavity; the heating assembly is used to raise the temperature of the inner cavity; and the controller is electrically connected with the heating assembly to control the temperature of the inner cavity.

[0019] Preferably, the diagnostic device further comprises a signal transceiver arranged in the inner cavity; the signal transceiver is respectively in communication connection with the collector and the controller, so as to receive the data sent by the collector and transmit the data to the controller.

[0020] Preferably, the diagnostic device further comprises a locking assembly mounted on the insertion tube;

[0021] The locking assembly is used to fix the temperature sensing unit or the temperature standard source in the insertion tube, and to suspend the partial structure of the temperature sensing unit or the temperature standard source in the inner cavity.

[0022] Preferably, the locking assembly comprises a plurality of clamping members arranged in the insertion tube, a trigger key arranged on the outer periphery of the insertion tube, and an elastic assembly connected between the trigger key and the plurality of clamping members.

[0023] The plurality of clamping members are arranged annularly and spaced apart from the central axis of the insertion tube, and are used to abut the peripheral wall of the temperature sensing unit or the temperature standard source simultaneously.

[0024] The trigger key drives the plurality of clamping members to displace or restore to the original position in the direction away from the central axis of the insertion tube through the elastic assembly.

[0025] Preferably, the temperature measuring assembly comprises at least two diagnostic temperature sensors mounted on the inner wall surface of the inner cavity.

[0026] The controller is electrically connected with the at least two diagnostic temperature sensors respectively, and is further used to compare the reference temperature data obtained by the two diagnostic temperature sensors respectively, so as to diagnose whether the diagnostic temperature sensors are faulty.

[0027] Preferably, the diagnostic device further comprises a display unit for displaying the diagnostic result.

[0028] The present application also constructs a pressurization test system for a containment vessel, which comprises a plurality of temperature sensing units and a plurality of temperature standard sources arranged in a plurality of regions in the containment vessel, a collector arranged outside the containment vessel, and an EPP system network connecting the plurality of temperature sensing units and the plurality of temperature standard sources to the collector, and further comprises the above diagnostic device.

[0029] The number of the diagnostic devices corresponds to the number of the regions.

[0030] The temperature sensing unit or the temperature standard source is inserted into the corresponding diagnostic device for diagnosis.

[0031] The present application has the following beneficial effects: the diagnostic device is suitable for the pressurization test of the containment vessel of a nuclear power plant, and is used to diagnose the temperature sensing unit installed in the containment vessel and the EPP system network connected with the temperature sensing unit, so as to ensure the authenticity and effectiveness of the temperature data obtained by the collector, and to ensure the accuracy of the overall leakage rate calculation of the containment vessel and the authenticity of the evaluation of the last safety barrier of the nuclear power plant. BRIEF DESCRIPTION OF DRAWINGS

[0032] The application will be further described below in conjunction with the accompanying drawings and embodiments, in which:

[0033] Figure 1 is a simplified structural schematic diagram of the containment, temperature sensing unit, temperature standard source 302, EPP system network and collector 303 of the related art during the pressurization test;

[0034] Figure 2 is a structural schematic diagram of the diagnostic device for the containment pressurization test of the application in some embodiments;

[0035] Figure 3 is a logic block diagram of the pressurization test system of the application in some embodiments. DETAILED DESCRIPTION

[0036] In order to have a clearer understanding of the technical features, objectives and effects of the application, the specific embodiments of the application will be described in detail below with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail" and the like are based on the directions or positional relationships shown in the drawings, constructed and operated in a particular direction, and are only for the convenience of describing the technical solutions, and cannot be understood as indicating that the devices or elements indicated must have a particular direction, therefore, it cannot be understood as a limitation on the application.

[0037] It should also be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing", "setting" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there can be one or more intervening elements. The terms "first", "second", "third" and the like are only for the convenience of describing the technical solutions, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features, therefore, the features with "first", "second", "third" and the like can be explicitly or implicitly included one or more of the features. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0038] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the invention with unnecessary detail.

[0039] See Figure 1 , Figure 2 As shown, the present invention discloses a diagnostic device for containment pressure testing. This diagnostic device 100 is suitable for containment pressure testing in nuclear power plants. It diagnoses the temperature sensing unit 301 and / or EPP system network 304 installed inside the containment 200 to determine whether the temperature sensing unit 301 and / or EPP system network 304 are functioning properly. This ensures the authenticity and validity of the temperature data obtained by the data acquisition unit 303, thereby ensuring the accuracy of the overall leakage rate calculation of the containment 200 and guaranteeing the authenticity of the evaluation of the last safety barrier of nuclear power.

[0040] like Figure 2 As shown, in some embodiments, the diagnostic device for containment pressure testing may include a housing assembly 1, a temperature measuring assembly 2, a heating assembly 3, a signal transceiver 4, a power supply assembly (not shown), and a controller 5 housed within the housing assembly 1, as well as a display unit 6 and a button assembly 7 disposed on the housing assembly 1.

[0041] The housing assembly 1 defines a relatively sealed interior cavity 111. The housing assembly 1 also has an insertion port 121 communicating with the interior cavity 111, through which a temperature sensing unit 301 or a temperature standard source 302 can extend into the interior cavity 111. A temperature sensing assembly 2 acquires the temperature of the interior cavity 111 and generates reference temperature data. A heating assembly 3 raises the temperature of the cavity. A power supply assembly provides electrical energy. A transceiver 4 receives acquisition data from a data acquisition unit 303 located outside the containment 200 and transmits the acquired data to a controller 5. In some embodiments, the acquired data may include reference source data and sensed temperature data. A button assembly 7, triggerable by an engineer, provides various input commands to the controller 5. The controller 5 processes the data and outputs control commands and diagnostic results. A display unit 6 displays the diagnostic results.

[0042] It can be understood that the temperature sensing unit 301 can include a thermistor, resistance of which changes according to temperature, and the resistance has a corresponding relationship with the temperature, so that the sensing temperature data corresponds to the temperature of the inner cavity 111. In some embodiments, the temperature sensing unit 301 is in a cylindrical shape as a whole, one end of which is provided with a probe 3011, and the other end is connected to the collector 303 outside the containment vessel 200 through the EPP system network 304; the temperature sensing unit 301 can extend the end provided with the probe 3011 into the chamber, compare the sensing temperature data collected by the temperature sensing unit 301 with the reference temperature data collected by the temperature measuring assembly 2 through the controller 5, and output the first diagnostic result, so as to quickly verify whether the temperature sensing unit 301 itself has a problem. It can be understood that the temperature measuring assembly 2 detects the temperature in the inner cavity 111, and the temperature sensing unit 301 also collects the temperature in the inner cavity 111. The reference temperature data is used as a reference object, when the first diagnostic result is that the sensing temperature data is inconsistent with the reference temperature data, it can be determined that the temperature sensing unit 301 has a problem, provided that the reference temperature data is correct (the method of diagnosing whether the reference temperature data is correct is described below).

[0043] In some embodiments, the temperature standard source 302 can include a standard resistor, resistance of which does not change with temperature, so that the reference source data does not change with the temperature of the inner cavity 111, but there are some deviations in a plurality of sets of reference source data due to errors in the collection and transmission process. One end of the temperature standard source 302 can extend into the chamber, and the other end can be connected to the collector 303 outside the containment vessel 200 through the EPP system network 304, the deviations of a plurality of sets of reference source data collected continuously are compared through the controller 5, and the second diagnostic result is output, so as to quickly diagnose whether the EPP system network 304 works normally. In some embodiments, the deviation includes the maximum deviation and the standard deviation, when the second diagnostic result is that the difference between the maximum deviation and / or the standard deviation of a plurality of sets of reference source data is greater than a preset value, it is determined that the EPP system network 304 has a problem.

[0044] Referring to Figure 2As shown, the housing assembly 1 can include, in some embodiments, a cylindrical barrel 11 and an insertion tube 12 arranged above the barrel 11. The barrel 11 can be, in some embodiments, a straight cylinder, including an axially symmetrical left half (not shown) and right half (not shown); when the left half and the right half are combined, a straight cylindrical inner cavity 111 can be formed. The temperature measurement assembly 2, the heating assembly 3, the signal transceiver 4, the power supply assembly and the controller 5 can be mounted on the inner wall of the inner cavity 111; at the same time, the temperature sensing unit 301 or the temperature standard source 302 can be inserted into the inner cavity 111 for diagnosis. Locking tabs (not shown) extending outwardly are arranged on the peripheral walls of the left half and the right half, respectively, and a knob can pass through the locking tabs on the left half and the right half to connect the left half and the right half into a whole. In addition, in some embodiments, the top of the barrel 11 is also provided with a mounting hole for embedding the insertion tube 12, which can be arranged at the center of the top of the barrel 11. Understandably, the barrel 11 is not limited to a straight cylinder, but can also be a square column, an elliptical column or other shapes.

[0045] The insertion tube 12 can be, in some embodiments, a straight cylindrical tubular structure, both ends of which are open structures in the axial direction. The bottom end of the insertion tube 12 can be mounted (screwed) in the mounting hole at the top of the barrel 11 and coaxially connected to the inner cavity 111 of the barrel 11. The outer diameter of the insertion tube 12 is smaller than the outer diameter of the barrel 11 and larger than the diameter of the temperature sensing unit 301 and the temperature standard source 302. The temperature sensing unit 301 or the temperature standard source 302 can be inserted into the inner cavity 111 of the barrel 11 from the top end (insertion port 121) of the insertion tube 12, at which time the temperature sensing unit 301 or the temperature standard source 302 cooperates with the inner wall of the barrel 11 to form a relatively closed inner cavity 111.

[0046] Alternatively, in some embodiments, the temperature sensing unit 301 or the temperature standard source 302 can be sleeved on the outer periphery of the insertion tube 12 first, and then the insertion tube 12 is embedded in the mounting hole of the barrel 11.

[0047] In some embodiments, the diagnostic device 100 is further provided with a locking assembly (not shown) in the insertion tube 12. The locking assembly can be, in some embodiments, a radial bolt penetrating through the peripheral wall of the insertion tube 12, which can abut against the peripheral wall of the temperature sensing unit 301 or the temperature standard source 302 to fix the temperature sensing unit 301 or the temperature standard source 302 in the inner cavity 111, while the probe 3011 in the temperature sensing unit 301 or the temperature standard source 302 is suspended in the inner cavity 111 and does not contact the inner wall of the inner cavity 111.

[0048] In other embodiments, the locking assembly can include a plurality of clamping members arranged in the insertion tube 12, a trigger key arranged on the outer wall of the insertion tube 12, and an elastic assembly connected between the trigger key and the plurality of clamping members. The plurality of clamping members are arranged in a ring shape around the central axis of the insertion tube 12 and abut the peripheral wall of the temperature sensing unit 301 or the temperature standard source 302. A clamping space is formed in the middle of the ring shape formed by the plurality of clamping members, and the diameter of the clamping space is smaller than the diameter of the temperature sensing unit 301 or the temperature standard source 302 when no external force is applied. The trigger key is a reset key (which can be reset after being released) that controls the displacement of the plurality of clamping members in a direction away from the central axis of the insertion tube 12 to increase the area of the clamping space.

[0049] It can be understood that when the reset key is pressed, the elastic assembly is compressed, and the plurality of clamping members can be displaced in a direction away from the central axis of the insertion tube 12, so that the temperature sensing unit 301 or the temperature standard source 302 can pass through the insertion tube 12. After determining the height of the temperature sensing unit 301 or the temperature standard source 302 relative to the barrel 11, the reset key is released, the elastic assembly returns to its original state and pulls the plurality of clamping members to reset, but because the temperature sensing unit 301 or the temperature standard source 302 is already present in the insertion tube 12, the plurality of clamping members abut the peripheral wall of the temperature sensing unit 301 or the temperature standard source 302 and apply a clamping force in the direction of the central axis of the insertion tube 12, thereby relatively fixing the temperature sensing unit 301 or the temperature standard source 302 in the housing assembly 1.

[0050] In some embodiments, the temperature measuring assembly 2 can include two diagnostic temperature sensors arranged on the inner peripheral side wall of the barrel 11, which are electrically connected to the controller 5 and used to receive control instructions from the controller 5, collect the temperature of the inner cavity 111 in real time, and transmit the collected reference temperature data to the controller 5. It can be understood that the number of diagnostic temperature sensors is at least two to enable the diagnosis of the temperature measuring assembly 2.

[0051] In some embodiments, the heating assembly 3 can include a heating wire arranged on the inner peripheral side wall of the barrel 11, which can be made of metal and mechanically and electrically connected to the power supply assembly. It can be understood that the controller 5 can control the power supply assembly to provide current to the heating wire, and the heating wire can generate heat when powered to heat the inner cavity 111 of the barrel 11 to a preset temperature. The controller 5 can control the power supply assembly to adjust the size of the current to adjust the heating speed and the temperature of the inner cavity 111. In some embodiments, the heating assembly 3 is provided with two heating wires symmetrically arranged on the opposite inner peripheral side walls of the barrel 11 to uniformly heat.

[0052] The signal transceiver 4 can include a 5G transceiver in some embodiments, which can be communicatively connected with the controller 5 to continuously receive data sent by the collector 303 and transmit to the controller 5 according to the control instructions of the controller 5. Alternatively, the signal transceiver 4 can also be other transceivers, such as a 4G transceiver, a WIFI transceiver, etc. It can be understood that the signal transceiver 4 ensures the sealing of the diagnostic device 100 on the one hand, and makes the structure of the entire diagnostic device 100 more simple on the other hand. In other embodiments, the collector 303 can transmit data to the controller 5 through a wired network.

[0053] The display unit 6 is embedded on the outer peripheral wall of the barrel 11, which can include a display and first, second and third diagnostic indicator lights arranged on the display in some embodiments. The display, the first, second and third diagnostic indicator lights are electrically connected to the controller 5. The display is used to display the diagnostic results and the set temperature value. The first diagnostic indicator light is controlled by the controller 5 to turn on and off, which is used to feedback whether the temperature measurement assembly 2 is faulty; in some embodiments, if the temperature measurement assembly 2 meets the judgment requirements of the controller 5, the green light is on, otherwise the red light is on. The second diagnostic indicator light is controlled by the controller 5 to turn on and off, which is used to feedback whether the temperature sensing unit 301 is faulty; in some embodiments, if the temperature sensing unit 301 meets the judgment requirements of the controller 5, the green light is on, otherwise the red light is on. The third diagnostic indicator light is controlled by the controller 5 to turn on and off, which is used to feedback whether the EPP system network 304 is faulty; in some embodiments, if the EPP system network 304 meets the judgment requirements of the controller 5, the green light is on, otherwise the red light is on.

[0054] The button assembly 7 is arranged on the outer peripheral wall of the barrel 11 and below the display unit 6. The button assembly 7 can include switch buttons 71, function selection buttons 72 and temperature setting buttons 73 arranged along the circumferential direction of the barrel 11 in some embodiments. The switch buttons 71, the function selection buttons 72 and the temperature setting buttons 73 are respectively connected to the controller 5.

[0055] The switch button 71 is used to control the start or shutdown of the display screen and the temperature measurement assembly 2. In some embodiments, the switch button 71 is a self-locking key. After pressing the switch button 71, the controller 5 receives an input instruction to control the display screen to turn on and control the temperature measurement assembly 2 to start real-time temperature measurement. After pressing the switch button 71 again, the controller 5 receives another input instruction to control the display screen to turn off and the temperature measurement assembly 2 to stop temperature measurement.

[0056] The function selection button 72 is used to select the diagnostic mode of the diagnostic device 100. In some embodiments, the diagnostic mode can include a system network diagnostic mode, a temperature measuring component diagnostic mode and a temperature sensing unit diagnostic mode. It can be understood that the system network diagnostic mode, the temperature measuring component diagnostic mode and the temperature sensing unit diagnostic mode are arranged in sequence, and the desired diagnostic mode can be selected from the three diagnostic modes in sequence by pressing the function selection button 72.

[0057] The temperature setting button 73 can be used to adjust the temperature of the inner cavity of the barrel 11. In some embodiments, after the controller 5 receives the input instruction from the temperature setting button 73, the controller 5 controls the current output to the heating assembly 3 to achieve the adjustment of the temperature of the inner cavity. In some embodiments, the diagnostic device 100 initially sets the temperature display to 0°C, and the temperature can be adjusted in the range of 0°C to 50°C by pressing the temperature setting button 73 as needed. When the set temperature is higher than the temperature measured by the temperature measuring component 2, the controller 5 controls the heating element to start heating, and when the temperature measured by the temperature measuring component 2 reaches the set temperature, the controller 5 controls the heating element to stop heating.

[0058] Referring to Figure 3 The working process of the diagnostic device 100 is described in detail as follows:

[0059] 1. First, select any area of the containment 200, and place a diagnostic device 100 on the area;

[0060] 2.2 Then, the diagnosis of the EPP system network 304 is performed: one end of the temperature standard source 302 is connected to the EPP network sensor interface, and the other end of the temperature standard source 302 is fixed in the inner cavity 111 of the barrel 11, and the assembly is completed;

[0061] 2.3 The EPP network system and the collector 303 are turned on, and the collector 303 collects multiple sets of reference source data; in some embodiments, the reference source data is collected once every minute for 50 minutes;

[0062] 2.4 The switch button 71 is pressed to start the diagnostic device 100, and the system network diagnostic mode is selected, the signal transceiver 4 receives the multiple sets of reference source data sent by the collector 303 and transmits them to the controller 5;

[0063] 2.5 The controller 5 receives the multiple sets of reference source data, analyzes and outputs the diagnosis result to the display according to the preset first diagnosis rule; in some embodiments, the first diagnosis rule can be that the maximum deviation (the difference between the average value and the maximum value or the minimum value) between the multiple sets of reference source data is less than a first preset value, and / or the standard deviation between the multiple sets of reference source data is less than a second preset value, then the EPP network system is diagnosed to be able to work normally, otherwise it is judged to be faulty; in some embodiments, the first preset value is 1 / 10000, and / or the second preset value is 0.5 / 10000.

[0064] 3.1 If it is determined that the EPP system network 304 is able to work normally (if the EPP system network 304 is faulty, the diagnosis of the EPP system network 304 can be re-executed after repair, and the diagnosis of the temperature measuring assembly 2 is continued after it is determined that the EPP system network 304 is able to work normally), then the temperature measuring assembly 2 itself is diagnosed: the diagnosis device 100 selects the temperature measuring assembly diagnosis mode;

[0065] 3.2 The controller 5 receives the reference temperature data measured by the two diagnosis temperature sensors respectively, and compares the two reference temperature data; when the difference between the two reference temperature data is less than a third preset value, then it is determined that the two diagnosis temperature sensors have no problem, otherwise it is determined that at least one of the two diagnosis temperature sensors is faulty. In some embodiments, the third preset value is 0.25°C.

[0066] 4.1 Finally, if it is determined that the temperature measuring assembly 2 is able to work normally, then the temperature sensing unit 301 is diagnosed: the temperature standard source 302 is taken out, and one end of the temperature sensing unit 301 is connected to the EPP network sensor interface, and the other end of the temperature sensing unit 301 is fixed in the inner cavity 111 of the barrel 11, and the assembly is completed;

[0067] 4.2 The diagnosis device 100 selects the temperature sensing unit diagnosis mode;

[0068] 4.3 The temperature setting button 73 is adjusted to a preset temperature; in some embodiments, the preset temperature can be set by an engineer according to the area where the containment vessel 200 is located;

[0069] 4.4 The heating assembly 3 is waited to heat until the display shows that the inner cavity 111 reaches the preset temperature; wherein the temperature measuring assembly 2 always collects the temperature of the inner cavity 111, and sends the reference temperature data to the controller 5, and the display shows the real-time temperature condition of the inner cavity 111;

[0070] 4.5 The collector 303 collects multiple sets of sensing temperature data;

[0071] 4.6 The controller 5 receives the sensed temperature data sent by the collector 303 through the signal transceiver 4, and outputs the diagnosis result to the display according to the preset second diagnosis rule.

[0072] In some embodiments, the second diagnosis rule is that if the difference between the sensed temperature data and the reference temperature data is less than a fourth preset value, it is determined that the temperature sensing unit 301 is not faulty, otherwise it is determined that the temperature sensing unit 301 is faulty. In some embodiments, the fourth preset value is 0.55℃.

[0073] 5. Complete the diagnosis.

[0074] It can be understood that a plurality of diagnosis devices 100 can be arranged on the containment 200, and are respectively mechanically matched with the temperature sensing units 301 and / or the temperature standard sources 302 located on the plurality of regions. In the working process, the diagnosis of the temperature measurement assembly 2 is to further ensure the authenticity and effectiveness of the temperature data collected by the temperature sensing unit 301, and the steps thereof can be omitted in other embodiments. Of course, the temperature sensing unit 301 or the EPP system network 304 can also be diagnosed separately.

[0075] The present application provides a relatively closed space for the temperature sensing unit 301 and / or the temperature standard source 302 by constructing the diagnosis device for the containment pressure test, so that it is not affected by the external environment, the collection accuracy is prevented from being affected, and the judgment of the engineer is prevented from being misled; at the same time, it can quickly diagnose whether the temperature sensing unit 301 and / or the EPP system network 304 installed on the scene has a problem, so as to ensure the accuracy of the overall leakage rate calculation of the containment 200.

[0076] Referring to FIG. 1, Figure 1 , Figure 3 The present application also constructs a pressure test system for the containment 200, which includes a plurality of temperature sensing units 301 and a plurality of temperature standard sources 302 arranged in a plurality of regions in the containment 200, a collector 303 arranged outside the containment 200, and an EPP system network 304 connecting the plurality of temperature sensing units 301 and the plurality of temperature standard sources 302 to the collector 303;

[0077] The pressure test system also includes the above-mentioned diagnosis device 100; the temperature sensing unit 301 or the temperature standard source 302 can be inserted into the corresponding diagnosis device 100 for diagnosis; the diagnosis content can include whether the temperature sensing unit 301 or the EPP system network 304 is working normally.

[0078] In some embodiments, the number of diagnosis devices 100 corresponds to the number of regions.

[0079] It can be understood that the above embodiments only express the preferred embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application; it should be pointed out that for ordinary skilled in the art, the above technical features can be freely combined without departing from the concept of the present application, and several modifications and improvements can be made, which belong to the protection scope of the present application; therefore, any equivalent transformation and modification made with the patent claim scope of the present application shall belong to the coverage of the patent claim of the present application.

Claims

1. A diagnostic device for a containment pressure test, wherein a temperature sensing unit (301) and a temperature standard source (302) for the pressure test are arranged in a containment (200), and the temperature sensing unit (301) and the temperature standard source (302) are connected to a collector (303) outside the containment (200) through an EPP system network (304); the collector (303) is used to receive sensing temperature data collected by the temperature sensing unit (301) and a plurality of groups of reference source data fed back by the temperature standard source (302); the diagnostic device (100) comprises a housing assembly (1), a temperature measuring assembly (2) and a controller (5) accommodated in the housing assembly (1); the housing assembly (1) comprises a sealed inner cavity (111) and an insertion port (121) in communication with the inner cavity (111), and the insertion port (121) is used for arranging the temperature sensing unit (301) or the temperature standard source (302) in the inner cavity (111); the temperature measuring assembly (2) is used to collect the temperature of the inner cavity (111) to generate reference temperature data, and transmit the reference temperature data to the controller (5); the controller (5) is configured to be connected to the collector (303) to obtain sensing temperature data of the temperature sensing unit (301) during the temperature sensing unit (301) being arranged in the inner cavity (111), and then compare the sensing temperature data with the reference temperature data to output a first diagnostic result reflecting whether the temperature sensor (301) works normally according to the comparison result; and the controller (5) also obtains a plurality of groups of reference source data of the temperature standard source (302) during the temperature standard source (302) being arranged in the inner cavity (111) through the collector (303) to calculate the deviation of the plurality of groups of reference source data, and then output a second diagnostic result reflecting whether the EPP system network (304) transmits normally according to the deviation. characterized in that The housing assembly (1) comprises a barrel (11) and an insertion pipe (12) arranged at the top of the barrel (11); the barrel (11) is used to define the inner cavity (111); the insertion pipe (12) is in communication with the barrel (11), and the insertion port (121) is arranged at an end of the insertion pipe (12) away from the barrel (11). The insertion pipe (12) is detachably embedded in the top of the barrel (11). The diagnostic device (100) further comprises a heating assembly (3) arranged in the inner cavity (111); the heating assembly (3) is used to raise the temperature of the inner cavity (111); and the controller (5) is electrically connected with the heating assembly (3) to control the temperature of the inner cavity. The diagnostic device (100) further comprises a signal transceiver (4) arranged in the inner cavity (111), and the signal transceiver (4) is in communication connection with the collector (303) and the controller (5) respectively to receive data sent by the collector (303) and transmit the data to the controller (5).

2. The diagnostic device for a containment pressurization test according to claim 1, characterized in that, ​ 3. The diagnostic device for a containment pressurization test according to claim 2, characterized in that, ​ 4. The diagnostic device for a containment pressure test according to any one of claims 1 to 3, characterized in that, ​ 5. The diagnostic device for a containment pressure test according to any one of claims 1 to 3, characterized in that, ​ 6. The diagnostic device for a containment pressurization test according to claim 2 or 3, characterized in that, The diagnostic device (100) further comprises a locking assembly arranged on the insertion tube (12); The locking assembly is used to fix the temperature sensing unit (301) or the temperature standard source (302) in the insertion tube (12), and to suspend the part structure of the temperature sensing unit (301) or the temperature standard source (302) in the inner cavity (111) in the inner cavity (111).

7. The diagnostic device for a containment pressurization test according to claim 6, characterized in that, The locking assembly comprises a plurality of clamping members arranged in the insertion tube (12), a trigger key arranged on the outer periphery of the insertion tube (12), and an elastic assembly connected between the trigger key and the plurality of clamping members; The plurality of clamping members are arranged in annular intervals along the central axis of the insertion tube (12), and are used to abut the peripheral wall of the temperature sensing unit (301) or the temperature standard source (302) at the same time; The trigger key drives the plurality of clamping members to displace or restore to the original position in the direction away from the central axis of the insertion tube (12) through the elastic assembly.

8. The diagnostic device for a containment pressure test according to any one of claims 1 to 3, characterized in that, The temperature measuring assembly (2) comprises at least two diagnostic temperature sensors arranged on the inner wall surface of the inner cavity (111); The controller (5) is electrically connected with the at least two diagnostic temperature sensors respectively, and the controller (5) is further used to compare the reference temperature data obtained by the two diagnostic temperature sensors respectively to diagnose whether the diagnostic temperature sensors are faulty.

9. The diagnostic device for a containment pressure test according to any one of claims 1 to 3, characterized in that, The diagnostic device (100) further comprises a display unit (6) for displaying the diagnostic result.

10. A pressurization test system for a containment vessel, comprising a plurality of temperature sensing units (301) and a plurality of temperature standard sources (302) installed in a plurality of areas within the containment vessel (200), a collector (303) provided outside the containment vessel (200), and an EPP system network (304) connecting the plurality of temperature sensing units (301) and the plurality of temperature standard sources (302) to the collector (303), characterized in that, Further comprising the diagnostic device (100) of any one of claims 1-9; The number of the diagnostic devices (100) corresponds to the number of the regions; The temperature sensing unit (301) or the temperature standard source (302) is inserted into the corresponding diagnostic device (100) for diagnosis.

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