Anti-mistake interval reminding device for nuclear power plant

Abstract

The utility model discloses a nuclear power plant misplacement prevention interval reminding device which comprises a reminding plate, a connection fixing piece and a magnetic attraction piece, the reminding plate is provided with a reminding mark, the reminding plate is provided with a first surface and a second surface which are opposite to each other, the reminding plate is provided with a through hole penetrating through the first surface and the second surface, and the magnetic attraction piece is arranged on the first surface and the second surface. The connecting and fixing piece is detachably connected with the through hole, and the magnetic attraction piece is fixedly installed on the second surface. The nuclear power plant mistake-preventing interval reminding device can effectively remind personnel in the maintenance process, and can effectively prevent the problem of mistake intervals of maintenance work of adjacent same equipment during repeated operation of the personnel and secondary return during halfway interruption of the operation.

Description

Technical Field

[0001] This utility model relates to the field of nuclear power technology, and in particular to a nuclear power plant anti-misdirection interval reminder device. Background Technology

[0002] like Figure 1 As shown, during the initial construction of a nuclear power plant, due to various reasons, the six units were not installed sequentially. Furthermore, many rooms contained equipment from different units, such as the NA293 / 294 rooms housing the REN system. These two rooms were particularly problematic, experiencing over 70 instances of incorrect bay placement. The equipment in these rooms was densely packed, with the closest distance between different units' equipment of similar shape being approximately 20cm. Many devices with identical shapes and appearances existed in the same space. Historical experience feedback regarding the electrical and instrumentation power drawers on the distribution panel revealed numerous instances of incorrect bay placement.

[0003] Due to the unique characteristics of the on-site equipment and environment, and the multiple pressures of tight schedules and heavy workloads during major overhauls, personnel are prone to making mistakes such as going to the wrong interval during on-site maintenance. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a nuclear power plant anti-misdirection interval reminder device.

[0005] The technical solution adopted by this utility model to solve its technical problem is: to construct a nuclear power plant anti-misguided interval reminder device, including a reminder plate, a connecting fastener and a magnetic suction component. The reminder plate is provided with a reminder mark. The reminder plate has a first surface and a second surface opposite to each other. The reminder plate is provided with a through hole that passes through the first surface and the second surface. The connecting fastener is detachably connected to the through hole. The magnetic suction component is fixedly installed on the second surface.

[0006] In some embodiments, the reminder panel is a rectangular plate structure.

[0007] In some embodiments, the dimensions of the reminder panel are: length 100-200mm, width 70-130mm, and thickness 1.5-3mm.

[0008] In some embodiments, the dimensions of the reminder panel are: length 150mm, width 100mm, and thickness 2mm.

[0009] In some embodiments, the magnetic attractor is a rectangular plate-shaped structure.

[0010] In some embodiments, the dimensions of the magnetic attractor are: length 100-200mm, width 70-130mm, and thickness 1.5-3mm.

[0011] In some embodiments, the dimensions of the magnetic element are: length 150mm, width 100mm, and thickness 2mm.

[0012] In some embodiments, the connecting fastener is a connecting strap; the two ends of the connecting strap along its length are connected by a buckle or a locking buckle.

[0013] In some embodiments, the connecting fastener is made of leather.

[0014] In some embodiments, the reminder panel and the magnetic element are fixed together by adhesive bonding.

[0015] The implementation of this utility model has the following beneficial effects: the nuclear power plant anti-misoperation interval reminder device can effectively remind personnel during maintenance, and can effectively prevent personnel from repeating operations, returning to the same position after a mid-operation interruption, or misoperating during maintenance work on adjacent equipment with the same equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings:

[0017] Figure 1 It is a layout diagram of a nuclear power plant room in related technologies;

[0018] Figure 2 This is one of the structural schematic diagrams of the nuclear power plant anti-misdirection interval reminder device in some embodiments of this utility model;

[0019] Figure 3 This is the second structural schematic diagram of the nuclear power plant anti-misdirection interval reminder device in some embodiments of this utility model. Detailed Implementation

[0020] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0021] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0022] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0023] See Figure 2 and Figure 3 This utility model discloses a nuclear power plant anti-misdirection interval reminder device, including a reminder plate 10, a connecting fastener 20, and a magnetic suction member 30. The reminder plate 10 is provided with a reminder mark. The reminder plate 10 has a first surface and a second surface opposite to each other. The reminder plate 10 is provided with a through hole 11 that passes through the first surface and the second surface. The connecting fastener 20 is detachably connected to the through hole 11. The magnetic suction member 30 is fixedly installed on the second surface.

[0024] In some embodiments, the reminder board 10 is a rectangular plate structure. In some embodiments, the dimensions of the reminder board 10 are: length 100-200mm, width 70-130mm, and thickness 1.5-3mm. For example, the length of the reminder board 10 can be 100mm, 110mm, 120mm, 130mm, 140mm, 150mm, 160mm, 170mm, 180mm, 190mm, or 200mm. The width of the reminder board 10 can be 70mm, 80mm, 90mm, 100mm, 110mm, 120mm, or 130mm. The thickness of the reminder board 10 can be 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, or 3.0mm.

[0025] Preferably, the dimensions of the reminder board 10 are: length 150mm, width 100mm, and thickness 2mm.

[0026] In some embodiments, the reminder panel 10 is provided with a through hole 11 near its upper edge. The through hole 11 may be an oblong hole with a length of approximately 14 mm and a width of approximately 2.5 mm.

[0027] In some embodiments, the reminder board 10 may be made of acrylic sheet, which is a plastic sheet made of polymethyl methacrylate (PMMA).

[0028] In some embodiments, the reminder board 10 may be made of ultra-high molecular weight polyethylene (UHMWPE) sheet or cylinder. UHMWPE, also known as high-strength high-modulus polyethylene, is an unbranched linear polyethylene with a molecular weight of over 1.5 million. UHMWPE has excellent mechanical properties, excellent impact resistance, excellent wear resistance, and chemical corrosion resistance, making it suitable for coastal nuclear power plant environments.

[0029] In some embodiments, the warning board 10 may be made of high-density polyethylene (HDPE), a non-polar thermoplastic resin copolymerized from ethylene with high crystallinity. HDPE has excellent resistance to most household and industrial chemicals and is resistant to corrosion and dissolution by strong oxidants (concentrated nitric acid), acids, alkalis, salts, and organic solvents (carbon tetrachloride), making it suitable for coastal nuclear power plant environments.

[0030] In some embodiments, the reminder board 10 may be red to serve as a reminder, and the reminder sign may include Chinese characters, English words, the item, and an ID number, etc., and the reminder sign may be white. Figure 1As shown, the reminder sign may include: Huainan Service Anti-Wrong-Way Interval Warning Sign, Working Here, and No. 004, etc. This ID number can also be associated with a work item; for example, No. 004 could represent valve maintenance. This ID number facilitates the team's statistical management of the deployment of the anti-wrong-way interval reminder device in the nuclear power plant, preventing loss.

[0031] In some embodiments, the magnetic attractor 30 has a rectangular plate-like structure.

[0032] In some embodiments, the magnetic element 30 has the following dimensions: length 100-200mm, width 70-130mm, and thickness 1.5-3mm. For example, the length of the reminder board 10 can be 100mm, 110mm, 120mm, 130mm, 140mm, 150mm, 160mm, 170mm, 180mm, 190mm, or 200mm. The width of the reminder board 10 can be 70mm, 80mm, 90mm, 100mm, 110mm, 120mm, or 130mm. The thickness of the reminder board 10 can be 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, or 3.0mm.

[0033] In some embodiments, the magnetic element 30 has the following dimensions: length 150mm, width 100mm, and thickness 2mm.

[0034] In some embodiments, the reminder panel 10 and the magnetic member 30 are fixed together by adhesive, for example, by glue or tape. The magnetic member 30 may be a magnetic plate with moderate magnetism, and the size of the magnetic member 30 should not be too small to prevent the entire nuclear power plant anti-misdirection interval reminder device from falling off the equipment (such as the cabinet) due to its own weight.

[0035] In some embodiments, the overall dimensions of the reminder board 10 combined with the magnetic member 30 can be: length 150mm, width 100mm, and thickness 3-7mm, where the thickness can be 4mm.

[0036] In some embodiments, the connecting fastener 20 is a connecting strap, and its two ends along its length are connected by snap fasteners or locking buckles. Specifically, one end of the connecting fastener 20 along its length may have a snap hole, and the other end may have a snap fastener 21 that mates with the snap hole, allowing for a snap-fit ​​fixation. Snap fastener connections are convenient and simple. Preferably, the snap fastener 21 is made of brass, as brass is less likely to cause wear to other equipment in the nuclear power plant, such as valves or cabinets. Of course, the snap fastener 21 can also be made of other materials; no specific limitation is made here.

[0037] In some embodiments, the connecting fastener 20 is made of leather and can be fixed to the valve's operating wheel or operating rod. Using leather avoids wear on the valve's operating wheel or operating rod. When the nuclear power plant's anti-misdirection interval reminder device is installed on the cabinet surface, the connecting fastener 20 can be removed.

[0038] Given the unique characteristics of nuclear power plant equipment and environment, including varying pipe sizes, lack of mounting points for control panels, difficulty in managing tools, and the need for uncomplicated use and lightweight portability, a device was provided to prevent workers from accidentally entering the wrong bay. This device addresses the risk of human error when workers enter the wrong bay during repetitive tasks.

[0039] From its successful development to its formal application during major overhauls, this tool has been verified through four major overhauls: Y405 / 107 / 306 / 604. Since the use of this nuclear power plant anti-mistake interval reminder device, no mistake interval incidents have occurred during the major overhauls of the nuclear power plant.

[0040] The nuclear power plant's anti-misoperation interval reminder device can effectively remind personnel during maintenance, and can effectively prevent personnel from repeating operations, returning to the correct interval during mid-operation interruption, or going to the wrong interval during maintenance work on adjacent equipment with the same equipment.

[0041] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A nuclear power plant anti-misdirection interval reminder device, characterized in that, The device includes a reminder plate (10), a connecting fastener (20), and a magnetic suction device (30). The reminder plate (10) is provided with a reminder mark. The reminder plate (10) has a first surface and a second surface opposite to each other. The reminder plate (10) is provided with a through hole (11) that passes through the first surface and the second surface. The connecting fastener (20) is detachably connected to the through hole (11). The magnetic suction device (30) is fixedly installed on the second surface.

2. The nuclear power plant anti-misdirection interval reminder device according to claim 1, characterized in that, The reminder board (10) has a rectangular plate structure.

3. The nuclear power plant anti-misdirection interval reminder device according to claim 2, characterized in that, The dimensions of the reminder board (10) are: length 100-200mm, width 70-130mm, and thickness 1.5-3mm.

4. The nuclear power plant anti-misdirection interval reminder device according to claim 3, characterized in that, The dimensions of the reminder board (10) are: length 150mm, width 100mm, and thickness 2mm.

5. The nuclear power plant anti-misdirection interval reminder device according to claim 1, characterized in that, The magnetic suction element (30) has a rectangular plate-like structure.

6. The nuclear power plant anti-misdirection interval reminder device according to claim 5, characterized in that, The dimensions of the magnetic component (30) are: length 100-200mm, width 70-130mm, and thickness 1.5-3mm.

7. The nuclear power plant anti-misdirection interval reminder device according to claim 6, characterized in that, The dimensions of the magnetic component (30) are: length 150mm, width 100mm, and thickness 2mm.

8. The nuclear power plant anti-misdirection interval reminder device according to claim 1, characterized in that, The connecting fastener (20) is a connecting strap; the two ends of the connecting strap along its length are connected by buckles or locks.

9. The nuclear power plant anti-misdirection interval reminder device according to claim 1, characterized in that, The connecting fastener (20) is made of leather.

10. The nuclear power plant anti-misdirection interval reminder device according to claim 1, characterized in that, The reminder board (10) and the magnetic component (30) are fixed together by adhesive bonding.

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