CN115525042A - Fault diagnosis method and device for nuclear power plant equipment - Google Patents

Abstract

The invention discloses a fault diagnosis method and device for nuclear power plant equipment, and belongs to the technical field of nuclear power. The method comprises the following steps: acquiring a fault type displayed by a corresponding operation data window of the fault equipment according to the icon state corresponding to the fault equipment displayed on the man-machine interface; according to the icon state and the fault type, diagnosing the normal state of the fault equipment before the fault occurs; and positioning the fault component of the fault equipment according to the state change of the fault equipment between the normal state before the fault occurs and the icon state. The method and the device can solve the problems of long time consumption, low efficiency and easy safety loss caused by untimely maintenance of fault diagnosis in the related technology.

Description

Fault diagnosis method and device for nuclear power plant equipment

Technical Field

The invention belongs to the technical field of nuclear power, and particularly relates to a fault diagnosis method and device for nuclear power plant equipment.

Background

At present, the industrial control system of the nuclear power plant is integrated with the Internet of things, and more abundant information can be acquired, but because the equipment contained in the industrial control system is various, the information contained in each equipment is various, and various information is not summarized, extracted and standardized. In addition, the quantity of icon information displayed by the human-computer interface of the nuclear power plant is single, so that the operator is not facilitated to identify and diagnose a great quantity of equipment information.

If equipment failure occurs, historical data needs to be inquired at an engineer station to acquire the state of the failed equipment before the failure occurs, and the failure reason is further analyzed, so that the failure diagnosis is long in time consumption and low in efficiency, and the problem of safety loss caused by untimely maintenance is easy to occur.

Disclosure of Invention

The invention aims to solve the technical problems of the prior art, and provides a fault diagnosis method and a fault diagnosis device for nuclear power plant equipment, so as to at least solve the problems of long time consumption, low efficiency and easy safety loss caused by untimely maintenance in the related technology.

The invention provides a fault diagnosis method of nuclear power plant equipment, which comprises the following steps: acquiring a fault type displayed by a corresponding operation data window of the fault equipment according to the icon state corresponding to the fault equipment displayed on the man-machine interface; according to the icon state and the fault type, diagnosing the normal state of the fault equipment before the fault occurs; and positioning the fault component of the fault equipment according to the state change of the fault equipment between the normal state before the fault occurs and the icon state.

Preferably, before the obtaining the fault type displayed in the corresponding operating data window of the faulty device according to the icon state corresponding to the faulty device displayed on the human-computer interface, the method further includes: and in response to the fault that the on feedback and the off feedback are both 0, setting the corresponding icon state of the fault equipment for displaying the off/stop state, the red outer frame, the O alarm and the F alarm, wherein the red outer frame is used for prompting that the equipment is in the fault state, the O alarm is used for prompting that the equipment has the operation fault, the F alarm is used for prompting that the equipment has the fault, and in response to the fault that the on feedback and the off feedback are both 1, setting the corresponding icon state of the fault equipment for displaying the on/start state, the red outer frame, the O alarm and the F alarm.

Preferably, the fault types include an on-delay fault, an off-delay fault, an on-deviation fault, and an off-deviation fault.

Preferably, the diagnosing the normal state of the faulty device before the fault occurs according to the icon state and the fault type specifically includes: responding to the icon state display closing/stopping state, and the fault type is an opening delay fault or a closing deviation fault, and diagnosing that the normal state of the fault equipment before the fault occurs is that the opening feedback is 0 and the closing feedback is 1; responding to the icon state display closing/stopping state, and the fault type is closing delay fault or opening deviation fault, and diagnosing that the normal state of the fault equipment before the fault occurs is opening feedback 1 and closing feedback is 0; responding to the icon state to display an on/off state, wherein the fault type is an on deviation fault, and diagnosing that the normal state of the fault equipment before the fault occurs is an on feedback of 0 and an off feedback of 1; and responding to the icon state display on/off state and the fault type is an off deviation fault, and diagnosing that the normal state of the fault equipment before the fault occurs is an on feedback 1 and an off feedback is 0.

Preferably, the fault type further comprises an execution fault. The diagnosing the normal state of the fault equipment before the fault occurs according to the icon state and the fault type further comprises: and in response to the fault type being the execution fault, terminating the process and positioning the fault of the fault equipment.

Preferably, before the obtaining the fault type displayed in the corresponding operating data window of the faulty device according to the icon state corresponding to the faulty device displayed on the human-computer interface, the method further includes: and designing an icon in a human-computer interface and a display scheme of a running data window.

Preferably, the designing of the display scheme of the icon and the operation data window in the human-computer interface specifically includes: collecting monitoring requirements for target equipment in a nuclear power plant human-machine interface; acquiring key information of the target equipment according to the collected monitoring requirement and parameter information transmitted to a control system by the target equipment, wherein the key information comprises on feedback, off feedback, execution fault, on fault, off fault, on deviation, off deviation, test, regulation mode, open-close loop mode and internal and external given mode; and displaying a first part of content of the key information on a corresponding icon of the target equipment, and displaying a second part of content of the key information in a corresponding operation data window of the target equipment, wherein the first part of content comprises on feedback, off feedback and test, and the second part of content comprises execution fault, on fault, off fault, on deviation, off deviation, regulation mode, open-close loop mode and internal and external given mode.

Preferably, the designing of the display scheme of the icons and the operation data window in the human-computer interface further includes: and determining all possible states of the target equipment according to the content displayed by the icon and the content displayed by the operation data window so as to obtain the comprehensive state display logic of the target equipment.

Preferably, the displaying the first part of content of the key information on the icon corresponding to the target device specifically includes: the icon comprises an icon body and an icon outer frame. Filling the icon body with a color consistent with the pipeline to display on feedback for representing that the target equipment is in an on/starting state; filling the icon body into white to display off feedback for representing that the target device is in an off/stop state; and setting the outer border of the icon to different colors to display different states of the target equipment, wherein the states comprise a fault state and a test state.

Preferably, the displaying the second part of the content of the key information in a corresponding operating data window of the target device specifically includes: and displaying the second part of content of the key information in a text form in a corresponding operation data window of the target equipment, and displaying the operation data window in a popup form on a human-computer interface.

Accordingly, the present invention also provides a fault diagnosis apparatus of a nuclear power plant, including: and the acquisition module is used for acquiring the fault type displayed by the corresponding operation data window of the fault equipment according to the icon state corresponding to the fault equipment displayed on the human-computer interface. And the diagnosis module is connected with the acquisition module and is used for diagnosing the normal state of the fault equipment before the fault occurs according to the icon state and the fault type. And the positioning module is connected with the acquisition module and the diagnosis module and used for positioning a fault component of the fault equipment according to the state change between the normal state of the fault equipment before the fault occurs and the icon state.

According to the fault diagnosis method and device for the nuclear power plant equipment, the corresponding icon state (or icon information) of the equipment with the fault is displayed in a human-computer interface, namely the equipment is prompted to have the fault, the fault type displayed on the corresponding operation data window of the equipment is called according to the prompting information, the normal state of the equipment before the fault occurs is diagnosed on the basis of the icon state and the fault type of the equipment, and the fault component of the equipment is positioned by comparing the normal state of the equipment with the icon state. The normal state of the equipment before the fault can be diagnosed only by checking the currently displayed icon state of the human-computer interface and calling the fault type in the operation data window, the fault part of the equipment is positioned according to the state change, and the historical data of the equipment does not need to be inquired at an engineer station to acquire the state of the fault equipment before the fault occurs, so that the fault diagnosis time can be shortened, the working efficiency is improved, the overall response time cost and the labor cost of the accident are reduced, and the condition of safety loss caused by untimely maintenance is avoided.

Drawings

FIG. 1: is a flow chart schematic diagram of a fault diagnosis method of a nuclear power plant equipment of embodiment 1 of the present invention;

FIG. 2: the drawing is a drawing and a schematic diagram of typical equipment of an industrial control system;

FIG. 3: indicating meaning and priority for the pump fan type equipment mode;

FIG. 4: schematic diagram of meaning and priority of upper mark of electric valve and other equipment;

FIG. 5: schematic diagram of the upper meaning and priority of the regulation equipment;

FIG. 6: display instructions for the outer frame of the device;

FIG. 7 is a schematic view of: is a schematic diagram of an operating data window of a typical device;

FIG. 8: displaying a logic table for the comprehensive state of the switch equipment;

FIG. 9: displaying a logic table for the comprehensive state of the regulating equipment;

FIG. 10: a schematic structural diagram of a fault diagnosis apparatus for a nuclear power plant device according to embodiment 2 of the present invention is shown.

Detailed Description

In order to make the technical solutions of the present invention better understood, the present invention is further described in detail below with reference to the accompanying drawings and examples.

Example 1:

as shown in fig. 1, the present embodiment provides a fault diagnosis method for nuclear power plant equipment, including:

step 101, acquiring a fault type displayed by a corresponding operation data window of the fault equipment according to the icon state corresponding to the fault equipment displayed on the man-machine interface.

In this embodiment, the human-machine interface may display information such as icons corresponding to the plurality of devices and connection relationships between the icons, and the icon states include state information of the devices. As shown in fig. 2, corresponding icons of some of the valves, pumps, fans, heaters, breakers, load switches, disconnectors, motors, mixers, freezers, etc. are shown. In order to enable the icons displayed by the human-machine interface of the nuclear power plant to contain abundant information, the optimization and improvement of the icon display scheme are as follows:

each icon is mainly divided into two parts, wherein the upper half part is an upper mark indicating area of the icon, and the lower half part is a state indicating area of the icon.

(1) The superscript indication area comprises three parts, wherein the first part of the superscript is indicated by F, and means that the superscript is an indication of the fault of the equipment and contains all fault information of the equipment. The second part of the superscript is an O indication, which means that the operation fault indication of the equipment contains the operation fault information of the equipment. The third part of the superscript is the mode indication of the equipment, which means the special mode indication of the equipment, including the mode indication of the test, manual automation, protection, local and the like of the equipment, and the priority of the mode display is designed according to the importance of the mode indication. As shown in fig. 3, the meaning and priority of the mode indication of the pump/fan type equipment are shown, and as shown in fig. 4, the meaning and priority of the equipment such as the electric valve are shown. As shown in fig. 5, the superscript meaning and priority of the class device is adjusted.

Specifically, the dynamic display scheme of each part of the superscript indicator region is as follows:

f indicates that all fault information of the device is included. This indication is triggered as soon as there is a fault message in the device, i.e. an F alarm. The font is white (RGB: 255, 255) and the background color is red (RGB: 255,0,0), and the specific status indications are as follows:

and (4) a normal state: and (4) hiding the superscript.

And (3) fault triggering: the superscript appears as F, showing that the background color blinks at a frequency of 2 HZ.

The failure triggers and is confirmed: both F and background colors are displayed and do not flicker.

Failure disappeared and was not confirmed: f shows that the background color flickers at a frequency of 0.5 Hz.

Failure disappeared and confirmed (recovered to normal): and (4) hiding the superscript.

And the O indication contains the operation fault information of the equipment. This indication is triggered only if there is a failure of the device. When the O indication is triggered, the corresponding F indication should also be triggered at the same time, i.e. an O alarm. The font is white (RGB: 255, 255) and the background color is red (RGB: 255,0,0), and the specific status indications are as follows:

and (3) normal state: and (4) hiding the superscript.

And (3) fault triggering: the superscript appears, O, showing that the background color blinks at a frequency of 2 HZ.

The failure triggers and is confirmed: and (4) hiding the superscript.

Wherein, the operation fault of the equipment is defined as follows: the operation faults include delay faults and deviation faults, wherein the delay faults include on faults and off faults. And (3) opening the fault: the open command is issued and the open feedback is still 0 for a specified time. Turning off the fault: and sending an off command, wherein the off feedback is still 0 in a specified time. The offset fault includes an on offset and an off offset. Opening deviation: no on command exists, but the on feedback changes. Guan Piancha: the irrelevant commands exist, but the off feedback changes.

The mode indication comprises the mode indication of testing, manual automation, protection, on-site and the like of the equipment. The font is white (RGB: 255, 255) and the background color is blue (RGB: 41,115,184).

(2) The status indication area comprises four parts, wherein the first part is the appearance of an icon: the appearance of the icon is designed based on the type of the corresponding equipment, in order to embody the universality of the icon, the design of the appearance of the icon is mainly defined according to the appearance use convention of each equipment in an industrial control system, as shown in fig. 2, the design mainly comprises equipment such as a valve, an electric pump, a fan, a heater, a circuit breaker, a load switch, an isolating switch, a blender, a cooler, an electromagnetic pump, a sodium pump and the like, the driving mode of the equipment is embodied by a valve head and a pump head of the icon, and the line of the valve head, the pump head, the switch and the like is a neutral line (1.06 pt). The second part is the controllable property of the icon: the device edge line of the icon of the dynamically controllable device is a thick line (1.98 pt); the device edge lines of the icons of the dynamically uncontrollable devices are thin lines (0.27 pt); the device edge lines of the static device icons are thin lines (0.27 pt) while the devices are filled with a fixed light gray color (RGB: 178,178,178). The third part is the outer border attribute of the icon: as shown in FIG. 6, the outer frame (1.12 pt) of the icon represents different states of the device, and the outer frame is pure blue when the state is selected (RGB: 0,0,255); the outer frame is yellow in the test state (RGB: 255,255,0); the outer frame is orange (RGB: 255,128,0) when the listing is in an operable state, and the outer frame is bifurcate and orange (RGB: 255,128,0) when the listing is in an inoperable state; the outer frame is red (RGB: 255,0,0) in the fault state, and the red outer frame can flash or be displayed flat along with the marked F indication area. Since a device may have several states of the outer frame display at the same time, a specific priority is to be excluded. If the outer frame grades are from high to low, the following steps are performed in sequence: test > tag hanging > selection > failure. The fourth part is the dynamic fill attribute of the device icon: if the icon body is filled with a color consistent with the pipeline, it represents that the device is in a startup/open state; if the icon body is filled with white color, the device is in a stop/off state; for a device with an intermediate state, half of the icon body is filled with a medium color, and the other half is white to represent the intermediate state of the device. When the device is in the invalid state, the device icon body is filled with magenta (RGB: 255,0,255).

Wherein, the color of the medium is mainly divided into the following:

(1) Thermal hydraulic partial medium: gas, oil, concentrate are khaki (RGB 220, 170,0); water, hydrophobic is light blue (RGB 110, 150, 180); the water vapor is bright orange (RGB 255, 160, 145); the cooling water is purple (RGB 120, 100, 170); the waste, condensate is dark green (RGB 135, 150, 120); sodium is brown (RGB 102, 64,0); argon is dark gray (RGB 97, 97, 97).

(2) An electrical part: the 500kV/220kV/24kV/220V alternating current is bright orange (RGB 255, 160 and 145); the 10kV alternating current is light blue (RGB 110, 150, 180); 380V alternating current is khaki (RGB 220, 170,0); the 220V direct current is dark green (RGB 135, 150, 120); the direct current of 48-110V is purple (RGB 120, 100, 170).

The embodiment further optimizes and improves the display scheme of the operation data window, the operation data window is used for displaying relevant operation data of the corresponding device, as shown in fig. 7, the operation data window of a typical valve is enumerated, and the displayed information of the operation data windows of other devices is basically consistent with the window, only the description of the text information is different, and is not listed one by one. Due to the limited display content on the human-computer interface, an operator can call out a corresponding operation data window of the equipment by clicking a special button on an operation panel of the corresponding equipment on the human-computer interface, and specifically, the operation data window is displayed on the human-computer interface of the main control room in a pop-up window mode. It should be noted that, compared with the icon state displayed on the man-machine interface interaction interface of the main control room, the content displayed on the operation data window is more detailed device information of the corresponding device, and the device information is obtained by the automatic control program according to a specific algorithm.

As shown in fig. 7, the example of the operating data window of the device displays the following information:

(1) General state: general information for the device class object is listed including remote, manual control, execution failure, inconsistent state, invalid.

(2) Opening information: including on feedback, on, protect on, allow on, auto on, open fault, open bias.

(3) Closing information: including off feedback, off, protection off, allow off, auto off, off fault, off bias.

For the above information, the information contained is different for different object types, and the displayed text information is also different, for example, for a pump, the text corresponding to the on feedback is displayed as the on feedback.

If the equipment is the adjusting equipment, the operation data window also comprises the following display information:

(4) Setting value: the set point adjustment information is displayed, and includes set point adjustment, internal setting, external setting, set point (actually output set point), measured value (field feedback measured value), set point (operator input set point).

(5) And (3) outputting a value: displaying output value adjustment information, including output value adjustments: output value adjustment, output value (actual output value), valve position feedback value, set output value (operator input value).

Alternatively, the on feedback and the off feedback are displayed only on the icon, or both the on feedback and the off feedback are displayed in the icon and the operation data window. The open and close feedback is displayed in the icon and the operation data window, so that the specific form of the fault state can be acquired through the icon, and then the fault state can be verified and confirmed through the display content of the operation data window, and the accuracy of fault diagnosis is further improved.

Optionally, in order to obtain the operation fault information of the device from the icon state of the human-computer interface, in this embodiment, the icon state display of the faulty device is set reasonably, so that an operator can quickly call the operation data window of the device according to the icon state of the faulty device in the human-computer interface, so as to quickly diagnose the faulty component of the faulty device. Specifically, at step 101: before the fault type displayed in the corresponding operation data window of the fault equipment is obtained according to the icon state corresponding to the fault equipment displayed on the man-machine interface, the method further comprises the following steps: and in response to the fault that the on feedback and the off feedback are both 0, setting the corresponding icon state of the fault equipment for displaying the off/stop state, the red outer frame, the O alarm and the F alarm, wherein the red outer frame is used for prompting that the equipment is in the fault state, the O alarm is used for prompting that the equipment has the operation fault, the F alarm is used for prompting that the equipment has the fault, and in response to the fault that the on feedback and the off feedback are both 1, setting the corresponding icon state of the fault equipment for displaying the on/start state, the red outer frame, the O alarm and the F alarm.

In this embodiment, when the device has an operation failure, both the O indication and the F indication will alarm according to the foregoing optimization design of the icon display scheme. When the equipment has an execution fault, the O indication does not alarm, and the F indication alarms. And when the equipment has operation failure, the on feedback and the off feedback are simultaneously 0 or simultaneously 1.

And 102, diagnosing the normal state of the fault equipment before the fault occurs according to the icon state and the fault type.

In this embodiment, the fault types include an on delay fault, an off delay fault, an on offset fault, and an off offset fault. Specifically, the diagnosing the normal state of the fault equipment before the fault occurs according to the icon state and the fault type includes:

responding to the icon state display closing/stopping state (namely, the opening feedback and the closing feedback are both 0), and the fault type is an opening delay fault or a closing deviation fault, and diagnosing that the normal state of the fault equipment before the fault occurs is that the opening feedback is 0 and the closing feedback is 1;

responding to the icon state display closing/stopping state (namely, both the opening feedback and the closing feedback are 0), and the fault type is closing delay fault or opening deviation fault, and diagnosing that the normal state of the fault equipment before the fault occurs is that the opening feedback is 1 and the closing feedback is 0;

responding to the icon state display on/start state (namely, both on feedback and off feedback are 1), and the fault type is an on deviation fault, diagnosing that the normal state of the fault equipment before the fault occurs is that the on feedback is 0, and the off feedback is 1;

and responding to the icon state display on/off state (namely, both on feedback and off feedback are 1), and the fault type is an off deviation fault, and diagnosing that the normal state of the fault equipment before the fault occurs is that the on feedback is 1 and the off feedback is 0.

Optionally, the fault type further comprises an execution fault. Step 102: the diagnosing the normal state of the fault equipment before the fault occurs according to the icon state and the fault type further comprises: and in response to the fault type being the execution fault, terminating the process and positioning the fault of the fault equipment.

In this embodiment, when the type of the fault is an execution fault, the icon state is used to display an F alarm, an O alarm is not given, and the execution fault is displayed as 1 in the operation data window, which terminates the process, and the failure device itself is located without acquiring a normal state before the failure occurs. For example, when the valve is opened or closed, the actuator fails if the valve stem is broken.

And 103, positioning the fault component of the fault equipment according to the state change of the fault equipment between the normal state before the fault occurs and the icon state.

In this embodiment, when the icon state corresponding to the device after the fault is displayed as a state where both the on feedback and the off feedback are 0, and the fault type displayed in the operation data window corresponding to the device is an on-delay fault, it may be diagnosed that the normal state of the device before the fault is: on feedback is 0, off feedback is 1; at the moment, when the maintenance personnel position the fault, the maintenance personnel can judge that the off state of the equipment is normal and whether corresponding parts or parts for executing the on command in the equipment executing mechanism are damaged or have incomplete functions or not. For another example, the icon state of the post-fault device is displayed as a state where both the on feedback and the off feedback are 1, the fault type displayed in the corresponding operation data window of the device is an off-deviation fault, and the normal state of the device before the fault can be diagnosed as follows: on feedback is 1, off feedback is 0; at this moment, when the maintenance personnel position the fault again, the on-state of the equipment can be judged to be normal, and whether related parts and parts in the off-state of the equipment are damaged or not can be mainly overhauled. The state before the fault is diagnosed through the icon state of the fault equipment and the fault type displayed by the operation data window, so that the corresponding fault part of the fault equipment is positioned according to the state change, the overhauling time can be shortened, and the overhauling efficiency is improved.

Optionally, at step 101: before the fault type displayed in the operating data window corresponding to the fault equipment is acquired according to the icon state corresponding to the fault equipment displayed on the human-computer interface, the method further comprises the following steps: and designing an icon in a human-computer interface and a display scheme of a running data window.

In this embodiment, the optimization and improvement of the icon display scheme and the display scheme of the running data window are adopted, and details are not described here.

Specifically, the design of the display scheme of the icon and the operation data window in the human-computer interface comprises the following steps: collecting monitoring requirements for target equipment in a nuclear power plant man-machine interface; acquiring key information of the target equipment according to the collected monitoring requirements and parameter information transmitted to a control system by the target equipment, wherein the key information comprises on-feedback, off-feedback, execution faults, on-faults, off-faults, on-deviations, off-deviations, testing, adjusting modes, open-closed loop modes and internal and external given modes; and displaying a first part of content of the key information on a corresponding icon of the target equipment, and displaying a second part of content of the key information in a corresponding operation data window of the target equipment, wherein the first part of content comprises on feedback, off feedback and test, and the second part of content comprises execution fault, on fault, off fault, on deviation, off deviation, regulation mode, open-close loop mode and internal and external given mode.

Optionally, the designing a display scheme of the icon and the operation data window in the human-computer interface further includes: and determining all possible states of the target equipment according to the content displayed by the icon and the content displayed by the operation data window so as to obtain the comprehensive state display logic of the target equipment.

In this embodiment, the operator can more intuitively and efficiently judge the state of the target device according to the comprehensive state display logic, which is beneficial to improving the monitoring efficiency and the correctness of the monitoring operation. In this embodiment, a comprehensive state display logic table is taken as an example for explanation, and as shown in fig. 8, the comprehensive state display logic table for the switching equipment is provided, wherein a state display logic table mainly based on an on state is mainly provided, and so on can be performed on a logic table related to an off state; x in the tables may represent 0 or 1. For example, the device status "automatic full on" in fig. 8 is obtained by integrating the signal bit status of the device, and the specific process is as follows: feedback information: in the fully-on state, the "on feedback" bit is 1, and the "off feedback" bit is 0; meanwhile, as the equipment is already in an on state, the 'on command' and the 'off command' are both 0; mode information: the mode indication is 'automatic state', no other higher priority 'test', 'local', 'protection' and other modes exist, the 'test' bit in the table is 0, the 'remote' bit is 1, and the 'protection on' and 'protection off' bits are both 0; and (3) fault information: no fault information exists, and the bits of execution fault, open fault, close fault, open offset, guan Piancha and fault in the table are all 0; card hanging information: at this time, the device does not perform any card hanging operation, and the bits of the "hang test card" and the "hang forbidden card" are both 0. For another example, the state "automatic full-on O/F alarm" in fig. 8 is also obtained by synthesizing the signal bit states of the devices, and the specific process is as follows: feedback information: in the fully-on state, the "on feedback" bit is 1, and the "off feedback" bit is 0; meanwhile, as the equipment is in an on state, the 'on command' and the 'off command' are both 0; mode information: the mode indication is 'automatic state', no other higher priority 'test', 'local', 'protection' and other modes exist, the 'test' bit in the table is 0, the 'remote' bit is 1, and the 'protection on' and 'protection off' bits are both 0; and (3) fault information: the "off fault" bit in the table is 1 and the "fault" bit is 1; or "off bias" is 1 and "fault" is 1; "open fault" is 0 and "open offset" is 0; O/F alarm information exists. Card hanging information: at this time, the device does not perform any card hanging operation, and the bits of the "hang test card" and the "hang forbidden card" are both 0. As shown in fig. 9, the comprehensive state display logic table for the adjustment-type device provides a state display logic table mainly in an on state, and the logic table related to an off state can be analogized; x in the table may represent 0 or 1. For example, the "open-loop mode fully-on" state of the regulating device in fig. 9 is obtained by synthesizing the signal bit states of the device, and the specific process is as follows: feedback information: in the fully-on state, the "on feedback" bit is 1, and the "off feedback" bit is 0; mode information: the mode indication is 'open loop mode', no other 'local' or 'protection' modes with higher priority exist, the 'remote' bit in the table is 1, and the 'protection on' and 'protection off' bits are both 0; the "open and closed loop mode" position is 1; and (3) fault information: there is no fault information, the "fault" bit in the table is 0; card hanging information: at this time, the device does not carry out any card hanging operation, and the bits of the 'hang test card' and the 'hang forbidding card' are both 0. For another example, the state "full open fault of a given mode in a closed loop" in fig. 9 is also obtained by integrating the signal bit states of the devices, and the specific process is as follows: feedback information: in the fully-on state, the "on feedback" bit is 1, and the "off feedback" bit is 0; mode information: the mode indication is 'given mode in closed loop', no other 'local' or 'protection' modes with higher priority exist, the 'remote' bit in the table is 1, and the 'protection on' and 'protection off' bits are both 0; the "open and closed loop mode" position is 0; the "inside and outside given pattern" is 0; and (3) fault information: the "fault" bit in the table is 1 and fault information exists. Card hanging information: at this time, the device does not perform any card hanging operation, and the bits of the "hang test card" and the "hang forbidden card" are both 0. In conclusion, the operator can quickly acquire the current state of the equipment and quickly execute the next monitoring operation according to the current state and the operation rule.

Optionally, displaying the first part of content of the key information on a corresponding icon of the target device, specifically including: the icon comprises an icon body and an icon outer frame. Filling the icon body with a color consistent with the pipeline to display on feedback for representing that the target equipment is in an on/start state; filling the icon body into white to display off feedback for representing that the target device is in an off/stop state; and setting the outer border of the icon to different colors to display different states of the target equipment, wherein the states comprise a fault state and a test state.

Optionally, the displaying the second part of the content of the key information in a corresponding operating data window of the target device specifically includes: and displaying the second part of content of the key information in a text form in a corresponding operation data window of the target equipment, and displaying the operation data window in a popup form on a human-computer interface.

According to the fault diagnosis method for the nuclear power plant equipment, the corresponding icon state of the equipment with the fault is displayed in a human-computer interface, namely the equipment is prompted to have the fault, the fault type displayed in the corresponding operation data window of the equipment is called according to prompt information, the normal state of the equipment before the fault occurs is diagnosed based on the icon state and the fault type of the equipment, and the fault component of the equipment is positioned by comparing the normal state with the change of the icon state. The normal state of the equipment before the fault can be diagnosed only by checking the currently displayed icon state of the human-computer interface and calling the fault type in the operation data window, the fault component of the equipment is positioned, and the historical data of the equipment does not need to be inquired at an engineer station to acquire the state of the fault equipment before the fault occurs, so that the fault diagnosis time can be shortened, the working efficiency is improved, the overall response time cost and the labor cost of an accident are shortened, and the condition of safety loss caused by untimely maintenance is avoided. Furthermore, in order to enable the icons displayed on the human-machine interface of the nuclear power plant to contain abundant information, the icon display scheme is optimized and improved. In addition, an operator can judge the state of the target equipment more intuitively and efficiently according to the comprehensive state display logic, and the monitoring efficiency and the monitoring accuracy are improved.

Example 2:

as shown in fig. 10, the present embodiment provides a fault diagnosis apparatus of a nuclear power plant, including:

and the obtaining module 11 is configured to obtain a fault type displayed in an operation data window corresponding to the faulty device according to the icon state corresponding to the faulty device displayed on the human-computer interface.

And the diagnosis module 12 is connected with the acquisition module 11 and is used for diagnosing the normal state of the fault equipment before the fault occurs according to the icon state and the fault type.

And the positioning module 13 is connected with the obtaining module 11 and the diagnosing module 12 and is used for positioning a fault component of the fault equipment according to the state change between the normal state of the fault equipment before the fault occurs and the icon state.

Optionally, the apparatus further comprises a setting module. The device comprises a setting module, a display module and an alarm module, wherein the setting module is used for responding to the fault that the on feedback and the off feedback are 0, setting the icon state corresponding to the fault equipment for displaying the off/stop state, the red outer frame, the O alarm and the F alarm, the red outer frame is used for prompting that the equipment is in the fault state, the O alarm is used for prompting that the equipment has the operation fault, the F alarm is used for prompting that the equipment has the fault, and the setting module is used for responding to the fault that the on feedback and the off feedback are 1, setting the icon state corresponding to the fault equipment for displaying the on/start state, the red outer frame, the O alarm and the F alarm.

Optionally, the fault types include an on delay fault, an off delay fault, an on offset fault, and an off offset fault.

Optionally, the diagnostic module comprises a first diagnostic unit, a second diagnostic unit, a third diagnostic unit and a fourth diagnostic unit.

And the first diagnosis unit is used for responding to the icon state and displaying an off/stop state, the fault type is an on delay fault or an off deviation fault, and the normal state of the fault equipment before the fault occurs is diagnosed as an on feedback of 0 and an off feedback of 1.

And the second diagnosis unit is used for responding to the icon state to display an off/stop state, the fault type is an off delay fault or an on deviation fault, and the normal state of the fault equipment before the fault occurs is diagnosed as an on feedback of 1 and an off feedback of 0.

And the third diagnosis unit is used for responding to the icon state to display an on/off state, the fault type is an on deviation fault, and the normal state of the fault equipment before the fault occurs is diagnosed as on feedback 0 and off feedback 1.

And the fourth diagnosis unit is used for responding to the icon state to display an on/off state, the fault type is an off deviation fault, and the normal state of the fault equipment before the fault occurs is diagnosed as on feedback 1 and off feedback 0.

Optionally, the fault type further comprises an execution fault.

Optionally, the diagnostic module further comprises a fifth diagnostic unit. And the fifth diagnosis unit is used for responding to the fault type as an execution fault, terminating the process and positioning the execution fault of the fault equipment.

Optionally, the apparatus further comprises a design module. And the design module is used for designing the display scheme of the icons and the operation data windows in the human-computer interface.

Optionally, the design module comprises a collection unit, an acquisition unit and a display unit.

And the collecting unit is used for collecting monitoring requirements of the nuclear power plant man-machine interface for the target equipment.

And the acquisition unit is connected with the collection unit and used for acquiring key information of the target equipment according to the collected monitoring requirements and the parameter information transmitted to the control system by the target equipment, wherein the key information comprises on feedback, off feedback, execution faults, on faults, off faults, on deviation, off deviation, test, regulation mode, open-close loop mode and internal and external given mode.

And the display unit is connected with the acquisition unit and is used for displaying a first part of content of the key information on an icon corresponding to the target equipment and displaying a second part of content of the key information in an operation data window corresponding to the target equipment, wherein the first part of content comprises on-feedback, off-feedback and test, and the second part of content comprises execution fault, on-fault, off-fault, on-deviation, off-deviation, regulation mode, on-off loop mode and internal and external given mode.

Optionally, the design module further comprises a determination unit. And the determining unit is connected with the display unit and used for determining all possible states of the target equipment according to the content displayed by the icon and the content displayed by the operating data window so as to obtain the comprehensive state display logic of the target equipment.

Optionally, the icon includes an icon body and an icon outline.

The display unit includes a first display assembly and a second display assembly.

The first display component is used for filling the icon body with a color consistent with the pipeline to display on feedback and is used for representing that the target equipment is in an on/starting state; filling the icon body into white to display off feedback for representing that the target equipment is in an off/stop state; and setting the outer border of the icon to different colors to display different states of the target equipment, wherein the states comprise a fault state and a test state.

And the second display component is used for displaying the second part of content of the key information in a text form in a corresponding operation data window of the target equipment, and the operation data window is displayed on the human-computer interface in a pop-up window form.

It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims (10)

1. A method of fault diagnosis of a nuclear power plant device, comprising:

acquiring a fault type displayed by a corresponding operation data window of the fault equipment according to the icon state corresponding to the fault equipment displayed on the man-machine interface;

according to the icon state and the fault type, diagnosing the normal state of the fault equipment before the fault occurs;

and positioning the fault component of the fault equipment according to the state change of the fault equipment between the normal state before the fault occurs and the icon state.

2. The method of claim 1, wherein before the obtaining the fault type displayed in the operating data window corresponding to the faulty device according to the icon status corresponding to the faulty device displayed on the human-machine interface, the method further comprises:

in response to the fault that the on feedback and the off feedback are both 0, setting the corresponding icon state of the fault equipment for displaying an off/stop state, a red outer frame, an O alarm and an F alarm, wherein the red outer frame is used for prompting that the equipment is in the fault state, the O alarm is used for prompting that the equipment has an operation fault, the F alarm is used for prompting that the equipment has a fault,

and responding to the fault of which the on feedback and the off feedback are 1, and setting the corresponding icon states of the fault equipment for displaying an on/off state, a red outer frame, an O alarm and an F alarm.

3. The fault diagnosis method of a nuclear power plant according to claim 2, characterized in that the fault types include an on-delay fault, an off-delay fault, an on-deviation fault, and an off-deviation fault,

diagnosing the normal state of the fault equipment before the fault occurs according to the icon state and the fault type, which specifically comprises the following steps:

responding to the icon state display closing/stopping state, and the fault type is an opening delay fault or a closing deviation fault, and diagnosing that the normal state of the fault equipment before the fault occurs is that the opening feedback is 0 and the closing feedback is 1;

responding to the icon state display closing/stopping state, and the fault type is closing delay fault or opening deviation fault, and diagnosing that the normal state of the fault equipment before the fault occurs is opening feedback 1 and closing feedback is 0;

responding to the icon state display on/start state and the fault type is an on deviation fault, and diagnosing that the normal state of the fault equipment before the fault occurs is an on feedback of 0 and an off feedback of 1;

and responding to the icon state display on/off state and the fault type is an off deviation fault, and diagnosing that the normal state of the fault equipment before the fault occurs is an on feedback 1 and an off feedback is 0.

4. The fault diagnostic method for nuclear power plant equipment according to claim 3, characterized in that the type of fault further includes an execution fault,

the diagnosing the normal state of the fault equipment before the fault occurs according to the icon state and the fault type further comprises:

and in response to the fault type being the execution fault, terminating the process and positioning the fault of the fault equipment.

5. The method of claim 1, wherein before the obtaining the fault type displayed in the operating data window corresponding to the faulty device according to the icon status corresponding to the faulty device displayed on the human-machine interface, the method further comprises:

and designing an icon in a human-computer interface and a display scheme of a running data window.

6. The method of claim 5, wherein designing a display scheme for icons and windows of operational data in the human-machine interface includes:

collecting monitoring requirements for target equipment in a nuclear power plant man-machine interface;

acquiring key information of the target equipment according to the collected monitoring requirement and parameter information transmitted to a control system by the target equipment, wherein the key information comprises on feedback, off feedback, execution fault, on fault, off fault, on deviation, off deviation, test, regulation mode, open-close loop mode and internal and external given mode;

and displaying a first part of content of the key information on a corresponding icon of the target equipment, and displaying a second part of content of the key information in a corresponding operation data window of the target equipment, wherein the first part of content comprises on feedback, off feedback and test, and the second part of content comprises execution fault, on fault, off fault, on deviation, off deviation, regulation mode, open-close loop mode and internal and external given mode.

7. The method of claim 6, wherein designing a display scheme for icons and windows of operational data in the human machine interface further comprises:

and determining all possible states of the target equipment according to the content displayed by the icon and the content displayed by the operation data window so as to obtain the comprehensive state display logic of the target equipment.

8. The method for fault diagnosis of nuclear power plant equipment according to claim 6, wherein the displaying the first part of the key information on the icon corresponding to the target equipment specifically comprises:

the icon comprises an icon body and an icon outer frame,

filling the icon body with a color consistent with the pipeline to display on feedback for representing that the target equipment is in an on/starting state;

filling the icon body into white to display off feedback for representing that the target equipment is in an off/stop state;

and setting the outer border of the icon to different colors to display different states of the target equipment, wherein the states comprise a fault state and a test state.

9. The method for fault diagnosis of nuclear power plant equipment according to claim 6, wherein the displaying the second part of the content of the key information in a corresponding operation data window of a target equipment specifically comprises:

and displaying the second part of content of the key information in a text form in a corresponding operation data window of the target equipment, and displaying the operation data window in a popup form on a human-computer interface.

10. A fault diagnosis apparatus of a nuclear power plant device, characterized by comprising:

an acquisition module for acquiring the fault type displayed by the corresponding operation data window of the fault equipment according to the icon state corresponding to the fault equipment displayed by the human-computer interface,

the diagnosis module is connected with the acquisition module and is used for diagnosing the normal state of the fault equipment before the fault occurs according to the icon state and the fault type,

and the positioning module is connected with the acquisition module and the diagnosis module and used for positioning a fault component of the fault equipment according to the state change between the normal state of the fault equipment before the fault occurs and the icon state.

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