Fuel plant monitoring system and fuel plant

Abstract

The utility model provides a fuel plant monitoring system and a fuel plant, the fuel plant monitoring system is suitable for the fuel plant, and the fuel plant is provided with a first inlet, a first door frame and a first door body. The fuel plant monitoring system detection system comprises a sensing structure arranged on the first door frame, a sensing piece arranged on the first door body, a driving structure connected with the first door body, a control structure electrically connected with the sensing structure and a prompting structure electrically connected with the control structure. Wherein the driving structure is used for driving the first door body to open and close the first inlet; the sensing structure senses the sensing piece when the first door body opens and closes the first inlet; the control structure is used for acquiring sensing information of the sensing structure; the prompt structure is used for obtaining induction information of the control structure and giving out a prompt. The fuel plant monitoring system can monitor the opening or closing state of the first door body in real time, and sound, light or picture alarm is accompanied to prompt that the first door body is not closed in place, so that the human factor failure risk is greatly avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of fuel plant facilities, and more specifically, to a fuel plant monitoring system and a fuel plant facility. Background Technology

[0002] During new fuel reception, fuel containers need to enter and exit the fuel plant, requiring frequent opening and closing of the vertical gates at the fuel plant boundary. Because these vertical gates are control zone boundary gates and are subject to requirements for ensuring unit operation, the vertical and horizontal gates cannot be opened simultaneously during new fuel reception; that is, the vertical gates must be closed even when not in use. Therefore, the reliability of the vertical gate boundary closure must be ensured without affecting fuel operations. Currently, during new fuel reception, when fuel containers enter the fuel plant, the horizontal gate must be opened immediately after the vertical gate is closed for fuel container hoisting. However, the horizontal gate's opening and closing position is far from the vertical gate, and the electrical box for the horizontal gate is located in a corner. Personnel operating the horizontal gate cannot observe the actual status of the vertical gate, leading to situations where the vertical gate is not fully closed while the horizontal gate is open. Currently, the opening and closing status of the vertical gates is primarily monitored manually, which can result in incomplete closure or accidental opening while closed, posing a risk of human error and poor reliability in ensuring the vertical gates remain closed. Utility Model Content

[0003] The purpose of this utility model is to provide a fuel plant monitoring system and a fuel plant, so as to solve the technical problem in the prior art that the fuel plant door is easily opened by mistake, resulting in poor security.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] Firstly, a fuel plant monitoring system is provided, comprising:

[0006] A first door frame, a first door body disposed within the first door frame, a sensing structure disposed on the first door frame, a sensing element disposed on the first door body, a driving structure connected to the first door body, a control structure electrically connected to the sensing structure, and a prompting structure electrically connected to the detection structure; wherein, the first door frame is used to be arranged at the first entrance of the fuel plant; the driving structure is used to drive the first door body to open and close the first entrance; the sensing structure senses the sensing element when the first door body opens and closes the first entrance; the control structure is used to acquire the sensing information of the sensing structure; and the prompting structure is used to acquire the sensing information of the control structure and issue a prompt.

[0007] By adopting the above technical solution, the fuel plant monitoring system can monitor the opening or closing status of the first door in real time. It can monitor whether the first door is closed properly through the sensor structure, and provide sound, light or visual alarm to indicate that the first door is not closed properly. This facilitates the determination of the working conditions before receiving materials, greatly avoids the risk of human failure, and adds an extra layer of protection to ensure that the first door is closed properly.

[0008] In one embodiment, the notification structure includes at least one of a speaker, a notification light, and a display, wherein the speaker, the notification light, and the display are electrically connected to the control structure.

[0009] By adopting the above technical solution, the prompting structure can prompt maintenance personnel on the opening and closing status of the first door through at least one of the following: sound, light, or image. Its prompting method is highly flexible, which can reduce the risk of untimely prompting caused by a single prompting method.

[0010] In one embodiment, the sensing structure is an optical fiber sensor, the sensing element is a reflector, the optical fiber sensor is used to emit laser light toward the reflector, and the reflector reflects the laser light into the optical fiber sensor when the first door closes the first entrance.

[0011] By adopting the above technical solutions, fiber optic sensors offer high convenience and reliability in measurement.

[0012] In one embodiment, the fiber optic sensor includes a housing, a laser unit disposed on the housing, a laser receiving unit, and a measuring unit electrically connected to the laser unit and the laser receiving unit. The laser unit is used to emit laser light, the laser receiving unit is used to acquire reflected laser light, and the measuring unit is used to acquire laser detection information from the laser receiving unit.

[0013] By adopting the above technical solution, non-contact long-distance detection by fiber optic sensors has been achieved, which is fast, accurate, has a large range, and is highly resistant to light and electrical interference.

[0014] In one embodiment, the fiber optic sensor further includes an external interface disposed on the housing and for electrical connection to the control structure, and a relay disposed inside the housing and electrically connected to the external interface, the relay being electrically connected to the measuring unit.

[0015] By adopting the above technical solution, the function of connecting the sensing structure with the outside world is realized.

[0016] In one embodiment, the first door frame is a magnetic door frame, and the sensing structure further includes a magnetic structure disposed on the outer shell, the magnetic structure being able to magnetically attach to the magnetic door frame.

[0017] By adopting the above technical solution, the sensing structure can be fixed to the first door frame by magnetic adsorption, which is easy to install and remove, and facilitates the non-destructive installation and disassembly of the sensing structure.

[0018] In one embodiment, the fuel plant monitoring system further includes a power supply structure, which is electrically connected to the sensing structure and the alerting structure.

[0019] By adopting the above technical solution, the sensing structure becomes movable, thus improving its portability.

[0020] In one embodiment, the control structure is a microprocessor.

[0021] By adopting the above technical solution, the functions of receiving, processing, and outputting information by the control structure are realized.

[0022] In one embodiment, the sensing structure, the control structure, the prompting structure, and the power supply structure are integrated into a single structural component.

[0023] By adopting the above technical solutions, the ease of use of the fuel plant monitoring system can be improved.

[0024] Secondly, a fuel plant is provided, which includes a first entrance, a second entrance, a first door, a first door frame, a second door frame, a second door, and the aforementioned fuel plant monitoring system. The first door frame is located at the first entrance, and the first door is located inside the first door frame and is capable of opening and closing the first entrance.

[0025] The second door frame is located at the second entrance, and the second door body is located inside the second door frame and is capable of opening and closing the second entrance;

[0026] The second entrance is spaced apart from the first entrance.

[0027] By adopting the above technical solutions, the safe, stable, and efficient operation of nuclear fuel is ensured. This provides a strong guarantee for the effective implementation of nuclear safety regulations and also provides a basis for the safe operation of nuclear fuel. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the fuel plant monitoring system provided in an embodiment of the present invention.

[0030] Figure 2 This is a three-dimensional structural diagram of the sensing structure provided in an embodiment of this utility model.

[0031] Figure 3 This is an exploded view of the sensing structure provided in an embodiment of this utility model.

[0032] Figure 4 This is a schematic diagram of the sensing structure provided in an embodiment of the present invention.

[0033] The labels for the attached figures are as follows:

[0034] 1. First door frame; 2. First door body; 3. Sensing structure; 4. Sensing element; 5. Drive structure; 6. Notification structure;

[0035] 31. Housing; 32. Laser unit; 33. Laser receiving unit; 34. Measuring unit; 35. External interface; 36. Magnetic structure; 37. Power supply structure; 61. Speaker; 62. Indicator light; 63. Display. Detailed Implementation

[0036] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0037] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be located directly on or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component.

[0038] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or the number of technical features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. The specific implementation of this utility model is described in more detail below with reference to specific embodiments:

[0040] like Figure 1 and Figure 2 As shown in the illustration, this utility model provides a fuel plant monitoring system for maintenance personnel to monitor the fuel plant doors. Here, the doors need to be frequently opened and closed when fuel containers enter and exit the fuel plant. Simultaneously, to ensure the fuel plant's operational specifications, the doors need to be closed promptly. Existing fuel plants have a first and second door spaced apart. When a fuel container enters between the first and second doors, the first door needs to be closed to ensure the unit's operational safety. However, at this time, the distance between maintenance personnel and the first door is large, or there are obstacles obstructing the view, making it impossible for maintenance personnel to directly observe whether the first door is closed. The fuel plant monitoring system provided in this embodiment can indicate the opening and closing status of the first door to maintenance personnel, improving the efficiency and convenience of maintenance operations. The following detailed implementation will further illustrate this:

[0041] The fuel plant monitoring system of this embodiment is applicable to a fuel plant. The fuel plant has a first entrance, a first door frame 1 and a first door body 2. The first door frame 1 is located at the first entrance, and the first door body 2 is located on the first door frame 1.

[0042] The fuel plant monitoring system includes: a sensing structure 3 mounted on a first door frame 1, a sensing element 4 mounted on a first door body 2, a drive structure 5 connected to the first door body 2, a control structure electrically connected to the sensing structure 3, and a prompting structure 6 electrically connected to the control structure; wherein, the first door frame 1 is arranged at the first entrance of the fuel plant; the drive structure 5 is used to drive the first door body 2 to open and close the first entrance; the sensing structure 3 senses the sensing element 4 when the first door body 2 opens and closes the first entrance; the control structure is used to acquire the sensing information of the sensing structure 3; and the prompting structure 6 is used to acquire the sensing information of the control structure and issue a prompt.

[0043] The first door frame 1 refers to the door frame arranged at the first entrance; the first door frame 1 is used to support the first door body 2;

[0044] The first door body 2 refers to the door body used for installation on the first door frame 1; the first door body 2 is located on the first door frame 1;

[0045] The sensing structure 3 refers to the structure used to sense the sensing element 4. The sensing structure 3 is located on the first door frame 1. The position of the sensing structure 3 on the first door frame 1 corresponds to the position of the sensing element 4 on the first door body 2, so that when the first door body 2 closes the first entrance, the sensing structure 3 is exactly opposite to the sensing element 4, so that the sensing structure 3 can sense the sensing element 4.

[0046] The sensor 4 refers to the component used to be sensed by the sensing structure 3. The sensor 4 is disposed on the first door body 2. The position of the sensor 4 on the first door body 2 corresponds to the position of the sensing structure 3 on the first door frame 1, so that when the first door body 2 closes the first entrance, the sensor 4 is exactly opposite to the sensing structure 3, so that the sensor 4 can be sensed by the sensing structure 3.

[0047] The drive structure 5 refers to the structure used to drive the first door 2 to open and close the first entrance; the drive structure 5 generally refers to the driver, which can provide the power for the first door 2 to move relative to the first door frame 1.

[0048] The control structure refers to the structure used to receive and analyze sensing information and to issue control information. The control structure is electrically connected to the sensing structure 3. It receives and analyzes the sensing information transmitted from the sensing structure 3, and also sends control information to the prompting structure 6 based on the sensing information, causing the prompting structure 6 to issue a prompt. It should be further explained that the control structure is generally a microprocessor, a central processing unit composed of one or a few large-scale integrated circuits. These circuits perform the functions of the control unit and the arithmetic logic unit. The microprocessor can perform operations such as fetching instructions, executing instructions, and exchanging information with external memory and logic units; it is the arithmetic control part of a microcomputer. It can form a microcomputer together with memory and peripheral circuit chips.

[0049] The prompting structure 6 refers to the structure used to issue prompts; the prompting structure 6 includes, but is not limited to, a speaker 61, a prompting light 62, or a display 63, that is, the prompting structure 6 can prompt maintenance personnel through sound, prompting light, or displaying prompting images.

[0050] Here, it can be understood that the fuel plant monitoring system refers to a detection system configured in the fuel plant to monitor the opening and closing status of the fuel plant's doors; wherein, in this embodiment, the fuel plant is provided with a first entrance and a second entrance spaced apart from the first entrance, the first entrance is provided with a first door 2 for opening and closing the first entrance, and the second entrance is provided with a second door for opening and closing the second entrance;

[0051] The working principle of the fuel plant monitoring system provided in this embodiment is as follows:

[0052] When a fuel container needs to enter the fuel plant, the drive structure 5 drives the first door 2 to move relative to the first door frame 1 to open the first entrance, so that the fuel container can enter the fuel plant from the first entrance. At this time, the sensor 4 on the first door 2 is misaligned with the sensor structure 3 on the first door frame 1, so the sensor structure 3 cannot sense the sensor 4. The sensor structure 3 sends a sensing signal to the control structure. The control structure acquires and analyzes the sensing signal and outputs a control signal to the prompting structure 6, which can make the prompting structure 6 issue a prompt that the first door 2 is open.

[0053] When the fuel container enters the first inlet, the drive structure 5 drives the first door 2 to move relative to the first door frame 1 to close the first inlet. Since the sensor 4 on the first door 2 is now aligned with the sensor structure 3 on the first door frame 1, the sensor structure 3 senses the presence of the sensor 4 and sends another sensing signal to the control structure. The control structure acquires and analyzes this sensing signal and outputs a control signal to the prompting structure 6, which can then issue a prompt that the first door 2 is closed. The prompting from the prompting structure 6 can be sound, light, or a picture on the display 63, allowing maintenance personnel to remotely obtain the opening and closing status of the first door 2, avoiding situations where the door is not closed properly or is accidentally opened, thus facilitating maintenance work and ensuring compliance with the unit's operating procedures.

[0054] In this embodiment, the first door 2 is a vertical door, that is, the moving direction of the first door 2 is the vertical direction X, and the first door 2 can move along the vertical direction X to open and close the first entrance.

[0055] By adopting the above technical solution, the fuel plant monitoring system can monitor the opening or closing status of the first door 2 in real time. The sensing structure 3 monitors whether the first door 2 is closed properly, and provides sound, light or visual alarms to indicate that the first door 2 is not closed properly. This facilitates the determination of the working conditions before receiving materials, greatly avoids the risk of human error, and adds an extra layer of protection to ensure that the first door 2 is closed properly.

[0056] In one embodiment, the prompting structure 6 includes at least one of a speaker 61, a prompt light 62, and a display 63. It is understood that the prompting structure 6 may include only one of the speaker, the prompt light, and the display; or, the prompting structure 6 may include two of the speaker, the prompt light, and the display; of course, the prompting structure 6 may include three of the speaker, the prompt light, and the display. When the prompting structure 6 includes three of the three, the speaker 61, the prompt light 62, and the display 63 are electrically connected to the control structure respectively. The speaker, the prompt light, and the display are independently connected to the control structure, that is, the speaker is connected to the control structure through its own circuit path, the prompt light is connected to the control structure through its own circuit path, and the display is connected to the control structure through its own circuit path.

[0057] Here, it can be understood that speaker 61 refers to a device used to emit sound. Speaker 61 is electrically connected to the control structure, so that the control structure can output control information to speaker 61, causing speaker 61 to emit a corresponding prompt sound, allowing maintenance personnel to remotely obtain the opening and closing status of the first door 2; indicator light 62 refers to a lamp used to emit light. Indicator light 62 is electrically connected to the control structure, so that the control structure can output control information to indicator light 62, causing indicator light 62 to emit a corresponding prompt light, allowing maintenance personnel to remotely obtain the opening and closing status of the first door 2; display 63 refers to a device used to display images. Display 63 is electrically connected to the control structure, so that the control structure can output control information to display display 63, causing display 63 to display a corresponding image, allowing maintenance personnel to remotely obtain the opening and closing status of the first door 2.

[0058] It needs further explanation that the indicator light status can provide 5 types of information: when the "SYS" green indicator light flashes, it indicates that the monitoring system is working normally;

[0059] When the red "Chg" indicator light is on, it means that the device is charging; when it is off, it means that charging is complete or that no external power source is connected.

[0060] When the green "Done" indicator light flashes, it means that charging is complete (when an external power source is connected).

[0061] When the red "ALM" indicator light flashes, it means the sound and light output is on or off; the sound and light output is off.

[0062] When the red "Relay" indicator light flashes, it means the relay output is on or off; the relay output is off.

[0063] By adopting the above technical solution, the prompting structure 6 can prompt maintenance personnel about the opening and closing status of the first door 2 through at least one of the following: sound, light, or image. Its prompting form is highly flexible, which can reduce the risk of untimely prompting caused by a single prompting form.

[0064] In one embodiment, the sensing structure 3 is a fiber optic sensor (fiber optic diffuse reflection sensor), and the sensing element 4 is a reflector. The fiber optic sensor is used to emit laser light toward the reflector, and the reflector reflects the laser light into the fiber optic sensor when the first door 2 closes the first entrance.

[0065] Here, it can be understood that the fiber optic sensor can emit laser light towards the reflector, which reflects the laser light. The fiber optic sensor can also monitor the status signal of the first door 2 by detecting changes in light intensity after receiving the reflected laser light. For example, when the first door 2 closes the first entrance, the reflector and the fiber optic sensor are opposite each other. At this time, the fiber optic sensor emits laser light towards the reflector, which reflects the laser light back into the fiber optic sensor. The fiber optic sensor receives the laser signal and then emits a sensing signal. When the first door 2 opens the first entrance, the reflector and the fiber optic sensor are misaligned. At this time, the fiber optic sensor emits laser light. Because the reflector and the fiber optic sensor are misaligned, the reflector cannot reflect the laser light back into the fiber optic sensor. The fiber optic sensor senses the change in light intensity and then emits a sensing signal.

[0066] It needs further explanation that the fiber optic sensor settings include the following reference value setting function. A reference value refers to an acceptable benchmark or standard value, serving as a consistently accepted reference for the measured value. In this embodiment, the "reference value" can be set by teaching the sensor to a workpiece-free state (a state with stable incident light). This facilitates the detection of background objects and small objects. "DOWN" decreases the reference value, "UP" increases the reference value, and "MODE" sets the mode. The maximum distance is 120mm, where distance refers to the maximum distance between the sensing structure 3 and the sensing element 4.

[0067] By adopting the above technical solutions, fiber optic sensors offer high convenience and reliability in measurement.

[0068] Please refer to the following: Figure 3 In one embodiment, the fiber optic sensor includes a housing 31, a laser unit 32 disposed on the housing 31, a laser receiving unit 33, and a measuring unit 34 electrically connected to the laser unit 32 and the laser receiving unit 33. The laser unit 32 is used to emit laser light, the laser receiving unit 33 is used to acquire the reflected laser light, and the measuring unit 34 is used to acquire the laser detection information of the laser receiving unit 33.

[0069] Here, it can be understood that the outer casing 31 refers to the housing used to fix the laser unit 32, the laser receiving unit 33, and the measuring unit 34; the laser unit 32 refers to the unit used to emit laser light. In this embodiment, the laser unit 32 is used to emit laser light towards the reflector; the laser receiving unit 33 refers to the unit used to receive laser light. In this embodiment, the laser light reflected by the reflector is scattered in all directions, and part of the scattered laser light returns to the fiber optic sensor and is received by the laser receiving unit 33. The laser unit 32 sends the optical signal to the measuring unit 34, and the measuring unit 34 converts the optical signal into a corresponding electrical signal, that is, an induction signal.

[0070] By adopting the above technical solution, non-contact long-distance detection by fiber optic sensors has been achieved, which is fast, accurate, has a large range, and is highly resistant to light and electrical interference.

[0071] In one embodiment, the fiber optic sensor further includes an external interface 35 disposed on the housing 31 and used for electrical connection with the control structure, and a relay disposed inside the housing 31 and electrically connected to the external interface 35, the relay being electrically connected to the measurement unit 34.

[0072] By adopting the above technical solution, the function of connecting the sensing structure 3 with the outside world is realized.

[0073] In one embodiment, the first door frame 1 is a magnetic door frame, and the sensing structure 3 further includes a magnetic structure 36 disposed on the housing 31, which can be magnetically attached to the magnetic door frame.

[0074] Here, it can be understood that a magnetic door frame refers to a door frame made of magnetic material; magnetic structure 36 refers to a structure with magnetism; in this embodiment, the first door frame 1 is a magnetic door frame, which has magnetism, and the sensing structure 3 also includes a magnetic structure 36, which is disposed on the outer shell 31, so that the sensing structure 3 can be magnetically adsorbed onto the first door frame 1.

[0075] Optionally, the first door frame 1 is made of iron, and the magnetic structure 36 is a magnetic switch, meaning the sensing structure 3 is fixed via the magnetic switch. The magnetic switch has a maximum magnetic force of 16KG, allowing for immediate installation and use. The fiber optic sensor and reflector can be installed at their own set height, facilitating the reception of output signals and intervention operations.

[0076] By adopting the above technical solution, the sensing structure 3 can be fixed to the first door frame 1 by magnetic adsorption, which is easy to install and remove, and facilitates the non-destructive installation and disassembly of the sensing structure 3.

[0077] Please refer to the following: Figure 3 In one embodiment, the fuel plant monitoring system further includes a power supply structure 37, which is electrically connected to the sensing structure 3 and the alerting structure 6.

[0078] Here, it can be understood that the power supply structure 37 refers to the structure used to provide electrical energy; the power supply structure 37 generally refers to a storage battery. The power supply structure 37 is electrically connected to the sensing structure 3 and the prompting structure 6 to realize the power supply to the sensing structure 3 and the prompting structure 6.

[0079] Optionally, the power supply structure 37 can adopt a 24V continuous power supply and a 3.7V lithium-ion battery power supply, which is not affected by external power sources. The equipment can operate normally after a sudden external power outage.

[0080] By adopting the above technical solution, the sensing structure 3 becomes movable, thus improving its portability.

[0081] In one embodiment, the control structure is a microprocessor.

[0082] Here, it can be understood that a microprocessor is a central processing unit composed of one or a few large-scale integrated circuits. These circuits perform the functions of control units and arithmetic logic units. The microprocessor can perform operations such as fetching instructions, executing instructions, and exchanging information with external memory and logic units; it is the computational control part of a microcomputer. It can form a microcomputer together with memory and peripheral circuit chips.

[0083] By adopting the above technical solution, the functions of receiving, processing, and outputting information by the control structure are realized.

[0084] In one embodiment, the sensing structure 3, the control structure, the prompting structure 6, and the power supply structure 37 are integrated into a single structural component.

[0085] Here, it is understandable that the fuel plant monitoring system adopts an embedded design, assembling the sensing structure 3, control structure, prompting structure 6 and power supply structure 37 into one unit, highlighting its ease of use.

[0086] By adopting the above technical solutions, the ease of use of the fuel plant monitoring system can be improved.

[0087] Secondly, a fuel plant is provided, which includes a first entrance, a second entrance, a first door body 2, a first door frame 1, a second door frame, a second door body, and the aforementioned fuel plant monitoring system. The first door frame 1 is located at the first entrance, and the first door body 2 is located inside the first door frame 1 and is capable of opening and closing the first entrance.

[0088] The second door frame is located at the second entrance, and the second door body is located inside the second door frame and can open and close the second entrance;

[0089] The second entrance is spaced apart from the first entrance.

[0090] When the fuel container enters between the first and second inlets, the first door 2 must be closed simultaneously with the opening of the second door to ensure safety. The second door is a horizontal door, meaning the first door 2 moves in the horizontal direction Y, allowing it to open and close the second inlet. The drive structure 5 moves the first door 2 relative to the first door frame 1 to close the first inlet. As the sensor 4 on the first door 2 re-aligns with the sensor structure 3 on the first door frame 1, the sensor structure 3 senses the presence of the sensor 4 and sends another sensing signal to the control structure. The control structure acquires and analyzes this sensing signal and outputs a control signal to the prompting structure 6, which then issues a prompt indicating that the first door 2 is closed. The prompt from the prompting structure 6 can be sound, light, or a display on the screen 63, allowing maintenance personnel to remotely monitor the opening and closing status of the first door 2. This prevents the door from being incompletely closed or accidentally opened, facilitating maintenance work and preventing the simultaneous opening of the first and second doors, thus ensuring compliance with unit operating procedures.

[0091] The working process of the fuel plant monitoring system in this embodiment is as follows:

[0092] When the first door 2 is closed, the display 63 shows "Vertical door closed", the display 63 is green, there is no audible or visual alarm, and a door closing record is generated.

[0093] When the first door 2 is open, the display 63 shows "Please note that the vertical door is open", the display 63 flashes red, accompanied by an audible and visual alarm, and generates a door opening record.

[0094] When the first door 2 is open, clicking "Response" on the display 63 will mute the current alarm sound. Clicking "Alarm Sound" again will restore the alarm sound. A corresponding record will be generated after a manual response.

[0095] Clicking "Record Query" allows you to view the opening and closing times of monitor 63 and record the door opening response.

[0096] Click "Settings" to configure and modify system settings.

[0097] By adopting the above technical solution, in addition to the advantages of the fuel plant monitoring system of the above embodiments, the fuel plant of this embodiment also has the following advantages:

[0098] The fuel plant monitoring system in this embodiment has made the monitoring of the status of the first gate 2 of the fuel plant complete, thus filling the gap in the mechanical security dimension. This changes the traditional inspection method that relies on human experience and achieves a major breakthrough from human security to mechanical security, preventing the second gate from being opened when the first gate 2 of the fuel plant is not closed properly or is not closed.

[0099] This design is installed on the track side of the first gate 2 on site, with an optical reflector attached to the side of the first gate 2 as the signal receiving source for the device. It reliably monitors the opening and closing status of the first gate 2 in real time, adding an extra layer of protection to the previous manual monitoring system. It also serves as a reminder to the operators of the first gate 2, minimizing the risk of human error and ensuring that supervisors confirm the start-up conditions, without affecting the functionality of the first gate 2. This increases the visibility of the first gate 2 boundary door and the sensitivity of the prerequisites for receiving fuel, ensuring the safe and stable operation of fuel. When performing new fuel receiving operations, strict adherence to the power plant's operating technical specifications is required. The use of the online monitoring device for the first gate 2 ensures the correct opening and closing of the first gate 2, eliminating human error and guaranteeing the correct execution of new fuel receiving operations, ensuring safe, stable, and efficient nuclear fuel operations. This provides strong support for the effective implementation of nuclear safety regulations and also provides a basis for safe nuclear fuel operations.

[0100] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fuel plant monitoring system, applicable to a fuel plant, wherein the fuel plant has a first entrance, a first door frame, and a first door body, the first door frame being disposed at the first entrance, and the first door body being disposed on the first door frame, characterized in that, The fuel plant monitoring system includes: The system comprises a sensing structure mounted on the first door frame, a sensing element mounted on the first door body, a driving structure connected to the first door body, a control structure electrically connected to the sensing structure, and a prompting structure electrically connected to the control structure; wherein the driving structure is used to drive the first door body to open and close the first entrance; the sensing structure senses the sensing element when the first door body opens and closes the first entrance; the control structure is used to acquire the sensing information of the sensing structure; and the prompting structure is used to acquire the sensing information of the control structure and issue a prompt.

2. The fuel plant monitoring system as described in claim 1, characterized in that, The notification structure includes at least one of a speaker, a notification light, and a display.

3. The fuel plant monitoring system as described in claim 1, characterized in that, The sensing structure is an optical fiber sensor, and the sensing element is a reflector. The optical fiber sensor is used to emit laser light toward the reflector, and the reflector reflects the laser light into the optical fiber sensor when the first door closes the first entrance.

4. The fuel plant monitoring system as described in claim 3, characterized in that, The fiber optic sensor includes a housing, a laser unit, a laser receiving unit, and a measuring unit disposed on the housing. The measuring unit is electrically connected to the laser unit and the laser receiving unit, respectively. The laser unit is used to emit laser light, the laser receiving unit is used to acquire the reflected laser light, and the measuring unit is used to acquire the laser detection information of the laser receiving unit.

5. The fuel plant monitoring system as described in claim 4, characterized in that, The fiber optic sensor also includes an external interface disposed on the housing and used for electrical connection with the control structure, and a relay disposed inside the housing and electrically connected to the external interface, the relay being electrically connected to the measurement unit.

6. The fuel plant monitoring system as described in claim 4, characterized in that, The first door frame is a magnetic door frame, and the fiber optic sensor also includes a magnetic structure disposed on the housing, which can be magnetically attached to the magnetic door frame.

7. The fuel plant monitoring system as described in claim 1, characterized in that, The fuel plant monitoring system also includes a power supply structure, which is electrically connected to the sensing structure and the alerting structure.

8. The fuel plant monitoring system as described in any one of claims 1 to 7, characterized in that, The control structure is a microprocessor.

9. The fuel plant monitoring system as described in any one of claims 1 to 7, characterized in that, The sensing structure, the control structure, the prompting structure, and the power supply structure are integrated into a single structural component.

10. A fuel plant, characterized in that, The facility includes a first entrance, a second entrance, a first door body, a first door frame, a second door frame, a second door body, and a fuel plant monitoring system as described in any one of claims 1 to 9. The first door frame is located at the first entrance, and the first door body is located inside the first door frame and is capable of opening and closing the first entrance. The second door frame is located at the second entrance, and the second door body is located inside the second door frame and is capable of opening and closing the second entrance; The second entrance is spaced apart from the first entrance.

Images