Foreign matter monitoring equipment applied to nuclear turbine maintenance

Abstract

The utility model relates to the technical field of nuclear power, in particular to foreign matter monitoring equipment applied to nuclear turbine maintenance. The equipment comprises a table body and an information acquisition assembly, a placing area is arranged on the table top of the table body and used for placing to-be-recognized tools carried by maintenance personnel when the maintenance personnel enter and leave. The information acquisition assembly is arranged in the rest area, except the placing area, of the desktop and is used for performing information acquisition on the to-be-identified tool placed in the placing area; wherein the information acquired during entering and leaving is used for determining a foreign matter monitoring result; the technical problem that an existing manual monitoring mode is low in monitoring efficiency and monitoring accuracy can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nuclear power, in particular to a foreign matter monitoring device applied to maintenance of a nuclear power steam turbine. BACKGROUND

[0002] In the field of nuclear power, the nuclear power steam turbine is a core device in the conventional island of a nuclear power plant. Its working principle is to use the steam generated by the nuclear reactor to push the blades to rotate, convert the kinetic energy of the steam into mechanical energy, and then drive the generator to generate electricity. The above process is similar to the working principle of an ordinary nuclear power steam turbine, but due to the special position of the nuclear power steam turbine, its running stability and safety are directly related to the overall safety of the nuclear power plant.

[0003] During the maintenance operation of the nuclear power steam turbine, the purity and precision control standard of the maintenance environment are crucial. Once extremely fine foreign matter enters the interior of the nuclear power steam turbine, it may cause a series of serious consequences, including but not limited to blade damage, increased unit vibration and efficiency reduction, and even shutdown accidents. Therefore, ensuring the purity of the maintenance environment is the key to ensuring the safe operation of the nuclear power steam turbine.

[0004] In actual application, foreign matter monitoring during maintenance of the nuclear power steam turbine mainly relies on manual operation, such as manual collection of information of tools entering and leaving the scene. This process is usually slow, which affects the maintenance work of the maintenance personnel. If there is a manual error, it may not be possible to ensure the absolute purity of the interior environment of the nuclear power steam turbine, which brings potential risks to the safe and stable operation of the nuclear power plant. CONTENT OF THE INVENTION

[0005] Therefore, the purpose of the present application is to provide a foreign matter monitoring device applied to maintenance of a nuclear power steam turbine, so as to solve the technical problem that the existing manual monitoring method has low monitoring efficiency and monitoring accuracy.

[0006] The present application provides a foreign matter monitoring device applied to maintenance of a nuclear power steam turbine, which comprises a table body and an information collection assembly.

[0007] A placing area is arranged on the tabletop of the table body, which is used to place tools to be identified carried by maintenance personnel when the maintenance personnel enter and leave the scene.

[0008] The information collection assembly is arranged in the remaining area of the tabletop except the placing area, and is used to collect information of the tools to be identified placed in the placing area.

[0009] The information collected when entering and leaving the scene is used to determine the foreign matter monitoring result.

[0010] Preferably, the information collection assembly comprises a support, a first visual image collection assembly and a second visual image collection assembly.

[0011] The support is arranged on the tabletop, and the first visual image collection assembly and the second visual image collection assembly are arranged on the support.

[0012] The visual image collection direction of the first visual image collection assembly is towards the first side of the table body, for collecting information of the maintenance personnel located at the first side of the table body.

[0013] The visual image collection direction of the second visual image collection assembly is towards the placement area, for collecting information of the tool to be identified placed in the placement area.

[0014] Preferably, the support comprises a horizontal rod, which is horizontally arranged above the placement area.

[0015] The first visual image collection assembly comprises a light source and a camera; the light source is arranged at the end side of the horizontal rod towards the placement area, and the camera is arranged at the end side of the light source towards the placement area.

[0016] Preferably, the placement area is circular in shape, and the part of the tabletop corresponding to the placement area can rotate around the center of the circle.

[0017] Preferably, the light source is slidingly arranged at the end side of the horizontal rod towards the placement area, for driving the camera to collect information of the tool to be identified placed in the placement area when the light source slides on the horizontal rod.

[0018] Preferably, the support is in the shape of inverted L, and the support further comprises a vertical rod, which is vertically arranged on the tabletop, and the top end of the vertical rod is connected with the horizontal rod.

[0019] The second visual image collection assembly comprises a face recognition module, which is arranged in the vertical rod towards the first side of the table body.

[0020] Preferably, the top end of the vertical rod is slidingly connected with the horizontal rod, for adjusting the relative height of the horizontal rod relative to the tabletop.

[0021] Preferably, the device further comprises a visualization device, which is arranged on the tabletop.

[0022] Preferably, the table body further comprises a plurality of sliding wheels, which are arranged at the bottom side of the table body.

[0023] Preferably, a groove is further arranged below the tabletop.

[0024] The device further comprises a power distribution unit, an Ethernet switch and a broadband adapter; the power distribution unit, the Ethernet switch and the broadband adapter are all arranged in the groove.

[0025] Advantages:

[0026] The application provides a foreign matter monitoring device applied to nuclear power steam turbine maintenance; the device comprises a table body and an information acquisition assembly; a placing area is arranged on the tabletop of the table body, and the placing area is used for placing tools to be identified carried by maintenance personnel when the maintenance personnel enter and leave; the information acquisition assembly is arranged in a remaining area of the tabletop except the placing area, and is used for acquiring information of the tools to be identified placed in the placing area; wherein, information acquired when entering and leaving is respectively used for determining a foreign matter monitoring result.

[0027] As the foreign matter monitoring device provided by the application embodiment realizes automatic detection of foreign matters, the accuracy and efficiency of foreign matter monitoring are improved, the problems of wrong recording and missing recording in the manual monitoring process are reduced, in addition, the foreign matter monitoring is realized through automatic means, the work burden of the maintenance personnel is reduced, and the safety of the maintenance operation is improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments of the application. The following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0029] Figure 1 A structural schematic diagram of a foreign matter monitoring device applied to nuclear power steam turbine maintenance provided by the embodiments of the application. DETAILED DESCRIPTION

[0030] In the prior art, through long-term maintenance experience and internal and external feedback, it is found that foreign matters introduced in the process of maintenance operation will seriously affect the maintenance quality of nuclear power steam turbine and even threaten the safe and stable operation of nuclear power steam turbine, which will affect the safety of nuclear power steam turbine and the efficiency of the power plant, and even threaten the nuclear safety. In detail, in recent years, the number of fuel and equipment failures caused by foreign matter invasion into nuclear power steam turbine in global nuclear power plants shows an upward trend. According to incomplete statistics, nearly 30% of nuclear power events are related to foreign matters.

[0031] In actual operation, nuclear power steam turbine needs to be overhauled once every 18 months, and each overhaul needs to last for about 40 days; during the overhaul, the maintenance personnel need to work continuously for 7x24 hours, and when the maintenance personnel enter the important area, the entry and exit time and the maintenance tools carried need to be strictly registered, and the current artificial monitoring method of "paper form + guard check" is used to complete the foreign matter control, so as to avoid the loss caused by the foreign matter left in the nuclear power steam turbine.

[0032] According to actual experience, although the artificial monitoring method can play a role in preventing foreign matter control to a certain extent, due to the different alertness of different personnel to the threat of foreign matter, the uncertainty of foreign matter management is caused; in detail, the existing artificial monitoring method at least has the following risks:

[0033] Firstly, in the process of registering the maintenance personnel entering and leaving the nuclear power steam turbine, the maintenance personnel and the maintenance tools carried by the maintenance personnel are easily misregistered or missed; secondly, the registration procedure of the maintenance tools is not standardized, and the registration efficiency is relatively low.

[0034] In order to solve the above technical problems, the application provides a foreign matter monitoring device applied to nuclear power steam turbine maintenance, which is arranged outside the working place where the nuclear power steam turbine is located; as shown in Figure 1 , a structure schematic view of a foreign matter monitoring device applied to nuclear power steam turbine maintenance provided by the embodiment of the application is shown in Figure 1 The device comprises a table body 100 and an information acquisition assembly 200.

[0035] A placing area 120 is arranged on the tabletop of the table body 100, and the placing area is used to place the tools carried by the maintenance personnel when they enter and leave.

[0036] Specifically, the table body 100 is the basic support structure of the foreign matter monitoring device, and the tabletop thereof is provided with the placing area 120. The placing area 120 is specially used to place the tools carried by the maintenance personnel when they enter and leave.

[0037] The placing area can be an area drawn on the tabletop by a color pen or a recessed groove arranged in a recess, which is used as a placing area; the setting of the placing area only needs to make the maintenance personnel clearly know that the area is used to place the maintenance tools, and the shape and position of the placing area are not limited in the application.

[0038] In actual operation, since the embodiment of the application automatically acquires information on the maintenance tools through the information acquisition assembly 200, when the placing area is arranged within the information acquisition range of the information acquisition assembly 200, the information acquisition efficiency of the information acquisition assembly 200 can be improved.

[0039] It should be noted that according to the above discussion, the nuclear steam turbine needs to be overhauled every 18 months, so it is not necessary to set up a foreign matter monitoring device outside the working place where the nuclear steam turbine is located all the year round, in order to improve the utilization efficiency of the device, the embodiment of the application sets up a table body to carry other components or structures of the foreign matter monitoring device, so as to realize that when maintenance demand occurs, the foreign matter monitoring device only needs to be moved to the outside of the working place where the nuclear steam turbine is located; in the embodiment of the application, the table body 100 is an integrated operation table welded by Q235A high-quality cold-rolled steel plate with storage function.

[0040] The information collection assembly 200 is arranged in the remaining area of the desktop except the placing area, and is used for collecting information of the tool to be identified placed in the placing area.

[0041] Specifically, the information collection assembly 200 is arranged in the remaining area of the desktop 110 except the placing area 120. The main function of the assembly is to collect information of the tool to be identified placed in the placing area 120. The information collection assembly 200 can adopt image recognition or other applicable technical means to realize rapid and accurate identification of the tool.

[0042] In actual operation, after the information collected when entering and leaving is collected, the information can be transmitted to the computer device, and the computer device compares and analyzes the information collected when entering and leaving, so as to determine the foreign matter monitoring result. If the tool information when entering and leaving is inconsistent, the computer device will issue an alarm to prompt that foreign matter may be left in the nuclear steam turbine.

[0043] In actual application, the computer device can be arranged in the table body 100 or in the cloud, which is not limited in the application. In addition, the logic of the computer device for determining the foreign matter monitoring result according to the information collected when entering and leaving is not limited in the application.

[0044] As can be seen from the above, the foreign matter monitoring device provided by the embodiment of the application can be used to automatically collect information of the maintenance tool through the information collection assembly 200 when the maintenance personnel enters and places the tool carried by him in the placing area 120 of the table body 100; when the maintenance personnel leaves, the information collection assembly 200 collects tool information again. The foreign matter monitoring device provided by the embodiment of the application realizes automatic detection of foreign matter, so as to improve the accuracy and efficiency of foreign matter monitoring, reduce the problems of wrong recording and missing recording in the manual monitoring process, and further realize foreign matter monitoring through automatic means, reduce the work burden of the maintenance personnel, and improve the safety of the maintenance operation.

[0045] In an implementation manner, the information collection assembly 200 comprises a support 210, a first visual image collection assembly 220 and a second visual image collection assembly 230.

[0046] The support 210 is arranged on the tabletop 110, and the first visual image collection assembly 220 and the second visual image collection assembly 230 are arranged on the support.

[0047] Specifically, the support 210 is a supporting structure of the information collection assembly 200, which is stable and easy to install on the tabletop 110; the material thereof can be selected from durable materials such as metal and plastic to ensure stability during long-term use; in actual operation, the support 210 is designed to be easy to adjust the height and angle to adapt to the height of different workbenches and the operation habits of maintenance personnel.

[0048] The visual image collection direction of the first visual image collection assembly 220 is towards the first side of the tabletop, for collecting information of the maintenance personnel located at the first side of the tabletop.

[0049] Specifically, the first visual image collection assembly 220 is arranged on the support 210, and the visual image collection direction thereof is towards the first side of the tabletop, for collecting information of the maintenance personnel located at the first side of the tabletop, such as recording the operation process and facial expression of the maintenance personnel, to provide visual data for job analysis and skill training; in actual operation, the first visual image collection assembly 220 can adopt a high-definition camera to ensure that the collected images are clear and detailed.

[0050] The visual image collection direction of the second visual image collection assembly 230 is towards the placement area 120, for collecting information of the tool to be identified placed in the placement area 120.

[0051] Specifically, the second visual image collection assembly 230 is also arranged on the support 210, but the visual image collection direction thereof is towards the placement area 120. The second visual image collection assembly 230 is used for collecting information of the tool to be identified placed in the placement area 120, such as the shape, color and identification of the tool to be identified, to provide accurate data for tool management and inventory checking; in actual operation, the second visual image collection assembly 230 can adopt a camera with automatic focusing and image recognition function to improve the accuracy and efficiency of tool identification.

[0052] It needs to be emphasized that setting the first video acquisition component 220 and the second video acquisition component 230 on the bracket 210 can significantly save the space of the foreign matter monitoring device, help to keep the workbench clean and orderly, and also simplify the installation process, reduce the installation time and cost. In addition, the unified bracket 210 also makes the inspection and maintenance more convenient. If the video acquisition component needs to be adjusted or maintained, only one operation on the bracket 210 is needed, which improves the maintenance efficiency. In actual operation, if the computer device is arranged in the table body 100, the computer device can be connected with the first video acquisition component 220 through the USB interface.

[0053] In actual operation, when the maintenance personnel carry the tools to be maintained into or out of the scene, the information of the maintenance personnel collected by the first video acquisition component 220 and the information of the tools to be maintained carried by the maintenance personnel collected by the second video acquisition component 230 can be filled into the data table, which is used to realize the association between the maintenance personnel and the tools to be maintained carried by the maintenance personnel. Each record in the data table is the monitoring record of the entry / exit of the "maintenance personnel + tools to be maintained".

[0054] In actual application, if a foreign matter is found in the working place of the nuclear power turbine maintenance, the foreign matter can be determined to belong to the tool to be maintained according to the foreign matter. Then, the relevant maintenance personnel can be matched according to the above record in the data table, which is used to further determine the time when the foreign matter enters the working place of the nuclear power turbine maintenance, so as to realize the foreign matter tracing. Through the foreign matter tracing, it is beneficial to optimize the maintenance process of the nuclear power turbine, to strengthen the personnel's standard operation consciousness, and to comprehensively improve the maintenance operation quality of the nuclear power turbine, so that each maintenance work can be steadily carried out on the controllable, orderly, efficient and safe track. In one implementation manner, the bracket 210 includes a horizontal rod 211, and the horizontal rod 211 is horizontally arranged above the placing area 120.

[0055] The second video acquisition component 230 includes a light source 231 and a camera 232. The light source 231 is arranged at the end side of the horizontal rod 211 facing the placing area 120, and the camera is arranged at the end side of the light source facing the placing area 120.

[0056] Specifically, the function of the light source 231 is to provide sufficient light for the camera 232, so as to ensure that the camera 232 can still collect clear and bright images in the case of insufficient light or large change of ambient light. In actual operation, the light source 231 can select energy-saving and efficient lighting devices such as LED lamps and fluorescent lamps to meet the lighting needs in different scenes.

[0057] It should be noted that the purpose of the light source 231 arranged at the end side of the lateral rod 211 facing the placement area 120 is to enable the camera 232 to accurately capture the information of the tool to be identified placed in the placement area 120.

[0058] The camera 232 is responsible for capturing the image information of the tool to be identified placed in the placement area 120 and transmitting the image information to the computer device; in actual operation, the camera 232 can select a high-definition, wide-angle, automatic focusing type lens to meet the video capture requirements in different scenes.

[0059] In actual operation, if the large maintenance tool carried by the maintenance personnel cannot be placed in the placement area 120, a multifunctional barcode gun can be used to scan the relevant barcode or two-dimensional code of the large maintenance tool to obtain the tool information of the maintenance tool, and then the tool information is transmitted to the visualization device 400. In actual operation, a light source adjuster can also be provided in the device to adjust the light intensity of the light source 231.

[0060] In an implementation manner, the shape of the placement area 120 is circular, and the part of the desktop 110 corresponding to the placement area 120 can rotate around the center of the circle.

[0061] Specifically, the part of the desktop 110 corresponding to the placement area 120 can rotate around the center of the circle, which means that the part of the desktop 110 corresponding to the placement area 120 is rotatable, especially automatically rotatable; for example, when the first video capture assembly 220 captures information of the tool to be identified placed in the placement area 120, the part of the desktop 110 corresponding to the placement area 120 can automatically rotate around the center of the circle, so that the first video capture assembly 220 can comprehensively and carefully capture the information of the tool to be identified placed in the placement area 120, improving the information capture efficiency.

[0062] In actual operation, a rotating shaft and a motor can be installed at the bottom side of the placement area 120, the axis of the rotating shaft is fixedly connected with the center of the placement area 120, and the rotating shaft is driven to rotate by the motor, so as to realize that the part of the desktop 110 corresponding to the placement area 120 can rotate around the center of the circle.

[0063] In an implementation manner, the light source 231 is arranged in the end side of the lateral rod 211 facing the placement area 120, and when the light source 231 slides on the lateral rod 211, the camera 232 is driven to capture information of the tool to be identified placed in the placement area 120.

[0064] Specifically, the light source 231 can slide on the horizontal rod 211, especially automatically. For example, when the first image acquisition assembly 220 collects information of the tool placed in the placement area 120, the light source 231 can slide on the horizontal rod 211 to expand the image acquisition range, so that the first image acquisition assembly 220 can collect information of the tool placed in the placement area 120 comprehensively and in detail, and the information collection efficiency is improved.

[0065] In an implementation manner, the support 210 is in an inverted L shape, and the support 210 further includes a vertical rod 212 vertically arranged on the tabletop 110, and a top end of the vertical rod 212 is connected with the horizontal rod 211.

[0066] The second image acquisition assembly 230 includes a face recognition module arranged in the vertical rod and facing the first side of the table body.

[0067] Specifically, the support 210 is in an inverted L shape, which can be stably placed on the tabletop 110, and meets the use requirements of the first image acquisition assembly 220 and the second image acquisition assembly 230. The image acquisition direction of the first image acquisition assembly 220 is vertical, that is, it needs to face the placement area 120, so that the first image acquisition assembly 220 can collect information of the placement area 120. The image acquisition direction of the second image acquisition assembly 230 is horizontal, which needs to recognize the maintenance personnel standing in front of the table body 100. Therefore, when the support 210 is arranged in an inverted L shape, the requirements of the first image acquisition assembly 220 and the second image acquisition assembly 230 can be met.

[0068] The vertical rod 212 is vertically arranged on the tabletop 110 and serves as a support part of the support. The vertical rod 212 is designed in consideration of stability and bearing capacity, so as to ensure that the support 210 can be firmly fixed on the tabletop 110 and will not be inclined or collapsed due to the weight of the image acquisition assembly or external force.

[0069] The horizontal rod 211 is connected with the top end of the vertical rod 212 to form an inverted L-shaped structure. The horizontal rod 211 is used to mount the image acquisition assembly, such as the first image acquisition assembly 220 and the second image acquisition assembly 230. In actual operation, the first image acquisition assembly 220 can also be mounted at other positions in the support 210, as long as the first image acquisition assembly 220 can quickly and stably collect information of the maintenance tool.

[0070] In an implementation manner, the top end of the vertical rod 212 is in sliding connection with the horizontal rod 211, for adjusting the relative height of the horizontal rod 211 relative to the tabletop 110.

[0071] Specifically, when the top end of the vertical rod 212 is in sliding connection with the horizontal rod 211, the relative height of the first visual image acquisition assembly 220 relative to the placement area 120 can be adjusted in real time when information collection is performed on the tool to be identified, thereby improving the efficiency and accuracy of information collection.

[0072] In an implementation manner, the device further comprises a visualization device 300; the visualization device 300 is arranged on the tabletop 110, and the visualization device 300 is in connection with the computer device; the visualization device 300 is used for displaying the foreign matter monitoring result to a user located at the second side of the table body 100.

[0073] Specifically, the visualization device 300 is a display screen; in actual operation, multiple visualization devices 300 can be arranged for users with different needs to watch the foreign matter monitoring result.

[0074] In actual operation, sockets, keyboards, mice and other auxiliary components or structures for the working of the foreign matter monitoring device can also be arranged.

[0075] In actual operation, the visualization device 300 can be a touch display screen or a non-touch display screen; if the visualization device 300 is a touch display screen, the computer device is in communication connection with the visualization device 300 through an HDMI interface and a USB interface, and the visualization device 300 is in communication connection with the keyboard and the mouse through the USB interface; if the visualization device 300 is a non-touch display screen, the computer device is in communication connection with the visualization device 300 through a DP interface.

[0076] In an implementation manner, the table body 100 further comprises multiple sliding wheels 130, and the multiple sliding wheels 130 are arranged at the bottom side of the table body.

[0077] Specifically, the sliding wheels 130 are designed to enable the table body 100 to be easily moved, so as to adapt to different use scenarios and layout requirements; the sliding wheels 130 can be equipped with a locking mechanism to ensure that the table body 100 can be stably fixed at a position when needed.

[0078] In an implementation manner, a groove is further arranged in the table body 100 below the tabletop 110.

[0079] The device further comprises a power distribution unit, an Ethernet switch and a broadband adapter; the power distribution unit, the Ethernet switch and the broadband adapter are all arranged in the groove.

[0080] Specifically, the power distribution unit (PDU) is used to supply power for the information collection assembly 200 and computer equipment, etc. The power distribution unit is arranged in the recess of the table body 100, and is used to provide power distribution and management functions for the plurality of devices on the table top 110. Through the power distribution unit, the user can conveniently control the power switches of the respective devices, avoid the disorder of the wires, and improve the neatness of the table top 110.

[0081] The Ethernet switch is also arranged in the recess, and is used to provide wired network connection for the devices on the table top 110. The Ethernet switch supports a plurality of network ports, and can simultaneously connect a plurality of computers, printers and other devices, so as to realize data sharing and communication within the local area network. In actual operation, the computer equipment is in communication connection with the Ethernet switch and the second video collection assembly 230 through the RJ45 interface. The Ethernet switch is in communication connection with the broadband adapter through the RJ45 interface.

[0082] The broadband adapter is also arranged in the recess, and is used to convert the broadband signal into a network signal available for the devices. The broadband adapter is usually used in cooperation with the Ethernet switch to provide high-speed and stable Internet connection for the devices on the table top 110.

[0083] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other manners. The described device embodiments are merely schematic, for example, the division of the units is only a logical function division, and there can be another division manner in actual implementation, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections between different units, can be indirect couplings or communication connections through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0084] In addition, the units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, that is, can be located in one place, or can be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purposes of the embodiments.

[0085] In addition, the functional modules in each of the embodiments of the present application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0086] It should be noted that, if the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application can be embodied in the form of a software product in essence or in the form of a part or the technical solutions of the present application that make contributions to the prior art. The computer software product is stored in a storage medium, includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0087] In this article, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations.

[0088] The above only describes the embodiments of the present application and is not used to limit the protection scope of the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A foreign matter monitoring device applied to maintenance of a nuclear power steam turbine, characterized by, The device comprises a table body and an information acquisition assembly; A placing area is arranged on the tabletop of the table body, and is used for placing tools to be identified carried by maintenance personnel when the maintenance personnel enter and leave; The information acquisition assembly is arranged in the remaining area of the tabletop except the placing area, and is used for acquiring information of the tools to be identified placed in the placing area; The information acquired when the maintenance personnel enter and leave is used for determining a foreign matter monitoring result.

2. The apparatus of claim 1, wherein, The information acquisition assembly comprises a support, a first video acquisition assembly and a second video acquisition assembly; The support is arranged on the tabletop, and the first video acquisition assembly and the second video acquisition assembly are arranged on the support; The video acquisition direction of the first video acquisition assembly is towards a first side of the table body, and is used for acquiring information of the maintenance personnel located at the first side of the table body; The video acquisition direction of the second video acquisition assembly is towards the placing area, and is used for acquiring information of the tools to be identified placed in the placing area.

3. The apparatus of claim 2, wherein, The support comprises a horizontal rod arranged above the placing area; The second video acquisition assembly comprises a light source and a camera; the light source is arranged at an end side of the horizontal rod towards the placing area, and the camera is arranged at an end side of the light source towards the placing area.

4. The apparatus of claim 3, wherein, The placing area is circular, and a part of the tabletop corresponding to the placing area can rotate around a center of the circle.

5. The apparatus of claim 3, wherein, The light source is slidingly arranged at an end side of the horizontal rod towards the placing area, and is used for driving the camera to acquire information of the tools to be identified placed in the placing area when the light source slides on the horizontal rod.

6. The apparatus of claim 3, wherein, The support is in an inverted L shape, and further comprises a vertical rod arranged vertically on the tabletop, and a top end of the vertical rod is connected with the horizontal rod; The second video acquisition assembly comprises a face recognition module arranged in the vertical rod towards the first side of the table body.

7. The apparatus of claim 6, wherein, The top end of the vertical rod is slidingly connected with the horizontal rod, and is used for adjusting the relative height of the horizontal rod relative to the tabletop.

8. The apparatus of claim 1, wherein, The device further comprises a visualization device arranged on the tabletop.

9. The apparatus of claim 1, wherein, The table body further comprises a plurality of sliding wheels arranged at a bottom side of the table body.

10. The apparatus of claim 1, wherein, A groove is further arranged in the table body below the tabletop. The device further comprises a power distribution unit, an Ethernet switch and a broadband adapter, which are arranged in the groove.

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