Anti-mistake spacing device for nuclear power plant

Abstract

The utility model discloses an anti-mistaken spacing device for a nuclear power plant. The anti-mistaken spacing device comprises a display panel and a connecting assembly, the connecting assembly comprises a first clamping piece, a second clamping piece, a connecting plate, a first rotating shaft and a second rotating shaft, the first clamping piece comprises a first clamping part, a first plate-shaped part and a first cylindrical part, and the second clamping piece comprises a second clamping part, a second plate-shaped part and a second cylindrical part; the connecting plate is provided with a first sleeve, a second sleeve, a third sleeve and a fourth sleeve; the first rotating shaft comprises a first shaft part and a second shaft part, the first shaft part is installed in the first cylindrical part, and the two ends of the second shaft part are installed on the first sleeve and the second sleeve respectively; the second rotating shaft comprises a third shaft part and a fourth shaft part, the third shaft part is installed in the second cylindrical part, and the two ends of the fourth shaft part are installed in the third sleeve and the fourth sleeve respectively. The device is relatively simple in structure, low in manufacturing cost, beneficial to popularization and capable of effectively reducing mistaken interval events and ensuring safe operation of equipment and safe operation of a unit.

Description

Technical Field

[0001] The utility model relates to the technical field of nuclear power, in particular to an anti-misoperation device for nuclear power plants to prevent wrong interval operation. Background Art

[0002] Currently, there are many valves in nuclear power plants. The nine-digit codes or ten-digit codes on the valves are relatively similar, and the handwheels of most valves in the same system have the same appearance. When it is necessary to operate the valves, there is a great risk of wrong interval operation. Similarly, there is the same risk when using TO buttons to start and stop equipment on site and operating electrical drawer switches.

[0003] During the major overhaul of the unit, the flow of people in the main control room is relatively large and the operations of the operators are also relatively numerous. At this time, if other people disturb the operations of the operators, there is a risk of misoperation or wrong operation. Some tests on the operation site need to use a test box to start and stop equipment on the distribution board drawer. After the equipment is started, the test box needs to be retained on the distribution board drawer. If someone accidentally touches the test box during the test, causing the test box to become loose or misoperating the test box, there is a risk of pump stop. A certain nuclear power plant has adopted various methods to prevent wrong interval operation, such as painting different colors on the plant floor to distinguish units, and hanging a player at the plant door to use sound prompt sounds to prevent wrong interval operation. This method of preventing wrong interval operation is relatively single and is a large-scale reminder, and there is still a situation of wrong interval operation. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an anti-misoperation device for nuclear power plants to prevent wrong interval operation.

[0005] The technical solution adopted by the utility model to solve its technical problem is to construct an anti-misoperation device for nuclear power plants to prevent wrong interval operation, including a display board and a connection component;

[0006] The connection component includes a first clamping member, a second clamping member, a connecting plate, a first rotating shaft, and a second rotating shaft. The first clamping member is used to clamp the display board. The first clamping member includes a first clamping portion, a first plate-shaped portion, and a first cylindrical portion. One end of the first plate-shaped portion is connected to the first clamping portion, and the other end of the first plate-shaped portion is connected to the first cylindrical portion. The second clamping member includes a second clamping portion, a second plate-shaped portion, and a second cylindrical portion. One end of the second plate-shaped portion is connected to the second clamping portion, and the other end of the second plate-shaped portion is connected to the second cylindrical portion;

[0007] A first end in the length direction of the connecting plate is provided with a first sleeve and a second sleeve. The first sleeve and the second sleeve are arranged at intervals relative to each other, and the openings of the first sleeve and the second sleeve are arranged opposite to each other. A second end in the length direction of the connecting plate is provided with a third sleeve and a fourth sleeve. The third sleeve and the fourth sleeve are arranged at intervals relative to each other, and the openings of the third sleeve and the fourth sleeve are arranged opposite to each other.

[0008] The first rotating shaft is in a T shape and includes a first shaft portion and a second shaft portion that are vertically arranged. The first shaft portion is rotatably installed in the first cylindrical portion, and both ends of the second shaft portion are installed in the first sleeve and the second sleeve respectively.

[0009] The second rotating shaft is in a T shape and includes a third shaft portion and a fourth shaft portion that are vertically arranged. The third shaft portion is rotatably installed in the second cylindrical portion, and both ends of the fourth shaft portion are installed in the third sleeve and the fourth sleeve respectively.

[0010] In some embodiments, an annular first clamping groove is provided on the inner wall surface of the first cylindrical portion, and an annular first protrusion is provided on the outer periphery of the first shaft portion. The first protrusion is installed in the first clamping groove.

[0011] In some embodiments, an annular second clamping groove is provided on the inner wall surface of the second cylindrical portion, and an annular second protrusion is provided on the outer periphery of the third shaft portion. The second protrusion is installed in the second clamping groove.

[0012] In some embodiments, the anti-misoperation interval device of the nuclear power plant further includes a protective cover for installing the display board.

[0013] In some embodiments, the protective cover is provided with a plurality of magnetic attracting members.

[0014] In some embodiments, the magnetic attracting member includes a permanent magnet.

[0015] In some embodiments, the protective cover is provided with at least one window.

[0016] In some embodiments, the protective cover is a plastic protective cover.

[0017] In some embodiments, the size of the display board is 200 mm in length, 150 mm in width, and 10 mm in thickness.

[0018] In some embodiments, the first clamping portion and the second clamping portion are elastic clips.

[0019] Implementing the present utility model has the following beneficial effects: The anti-misoperation device for nuclear power plants has a relatively simple structure and low manufacturing cost, which is conducive to promotion. It can effectively reduce the occurrence of misoperation events and ensure the safe operation of equipment and the unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the present 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 the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings. In the drawings:

[0021] Figure 1 is a schematic structural diagram of the anti-misoperation device for nuclear power plants in some embodiments of the present utility model;

[0022] Figure 2 is a schematic structural diagram of the display board in some embodiments of the present utility model;

[0023] Figure 3 is a schematic structural diagram of the protective cover in some embodiments of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to have a clearer understanding of the technical features, objectives, and effects of the present utility model, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. In the following description, it should be understood that the orientation or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "transverse", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are based on the orientation or positional relationships shown in the drawings, and are constructed and operated in a specific orientation, only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0025] It should also be noted that, unless otherwise clearly specified and limited, terms such as "installation", "connection", "linkage", "fixation", "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. When a component is referred to as "above" or "below" another component, the component can be "directly" or "indirectly" located above the other component, or there may also be one or more intermediate components. Terms such as "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", etc. can explicitly or implicitly include one or more of such features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present utility model. However, those skilled in the art should clearly understand that the present utility model can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present utility model.

[0027] Refer to Figures 1 to 3 , the present utility model shows a device for preventing wrong interval walking in a nuclear power plant, which can be used to prompt valve operations, start and stop equipment, prevent wrong interval walking in the operation of electrical drawer switches, and is applicable to the do-not-disturb prompt for important work related to reactivity in the main control execution, as well as the do-not-touch information prompt for on-site operation work. For example, during the major overhaul of the unit, the flow of people in the main control room is relatively large and the operations of the operators are also relatively numerous. At this time, if other people disturb the operations of the operators, there is a risk of misoperation or wrong operation. At this time, the device for preventing wrong interval walking in the nuclear power plant can be used to remind other people not to disturb the operators. Some tests at the operation site need to start and stop equipment using a test box on the distribution board drawer. When the equipment is started, the test box needs to be retained on the distribution board drawer. If someone accidentally touches the test box during the test, resulting in the test box becoming loose or misoperating the test box, there is a risk of pump stop. At this time, the device for preventing wrong interval walking in the nuclear power plant can be used on the distribution board drawer to remind other people not to touch the test box.

[0028] Refer to Figures 1 to 3 , in some embodiments, the device for preventing wrong interval walking in the nuclear power plant includes a display board 10 and a connection component 20.

[0029] The connection component 20 includes a first clamping member 21, a second clamping member 22, a connecting plate 23, a first rotating shaft 24, and a second rotating shaft 25.

[0030] The first clamping member 21 is used to clamp the display board 10. The first clamping member 21 may include a first clamping portion 211, a first plate-shaped portion 212, and a first cylindrical portion 213. The first clamping portion 211 is used to clamp the display board 10. One end of the first plate-shaped portion 212 is connected to the first clamping portion 211, and the other end of the first plate-shaped portion 212 is connected to the first cylindrical portion 213.

[0031] The second clamping member 22 can be used to be clamped on the device. For example, the second clamping member 22 can be clamped on the valve handwheel that needs to be operated or the operating handle of the distribution board drawer. The second clamping member 22 includes a second clamping portion 221, a second plate-shaped portion 222, and a second cylindrical portion 223. The second clamping portion 221 can be used to be clamped on the valve handwheel or the operating handle. One end of the second plate-shaped portion 222 is connected to the second clamping portion 221, and the other end of the second plate-shaped portion 222 is connected to the second cylindrical portion 223.

[0032] The connecting plate 23 can be generally in a rectangular plate-like structure. A first sleeve 231 and a second sleeve 232 are provided at the first end in the length direction of the connecting plate 23. The first sleeve 231 and the second sleeve 232 are arranged at intervals relative to each other, and the openings of the first sleeve 231 and the second sleeve 232 are arranged opposite to each other. The first sleeve 231 and the second sleeve 232 can be coaxially arranged. A third sleeve 233 and a fourth sleeve 234 are provided at the second end in the length direction of the connecting plate 23. The third sleeve 233 and the fourth sleeve 234 are arranged at intervals relative to each other, and the openings of the third sleeve 233 and the fourth sleeve 234 are arranged opposite to each other. The third sleeve 233 and the fourth sleeve 234 can be coaxially arranged.

[0033] The first rotating shaft 24 is in a T shape. The first rotating shaft 24 includes a first shaft portion 241 and a second shaft portion 242 that are vertically arranged. The first shaft portion 241 can be radially provided on the outer surface of the middle part of the second shaft portion 242. The first shaft portion 241 is rotatably installed in the first cylindrical portion 213. The two ends of the second shaft portion 242 are respectively installed in the first sleeve 231 and the second sleeve 232, so that the first shaft portion 241 can rotate circumferentially around the axis of the first cylindrical portion 213, and the second shaft portion 242 can rotate circumferentially along the axis of the first sleeve 231 and the second sleeve 232.

[0034] The second rotating shaft 25 is in a T shape. The second rotating shaft 25 includes a third shaft portion 251 and a fourth shaft portion 252 that are vertically arranged. The third shaft portion 251 is rotatably installed in the second cylindrical portion 223. Both ends of the fourth shaft portion 252 are installed in the third sleeve 233 and the fourth sleeve 234 respectively, so that the third shaft portion 251 can rotate circumferentially around the axis of the second cylindrical portion 223, and the fourth shaft portion 252 can rotate circumferentially along the axis of the third sleeve 233 and the fourth sleeve 234. Understandably, the structure of the connection assembly 20 itself can achieve multi-angle rotation, so that the anti-misoperation interval device of the nuclear power plant can be applicable to various environments, especially in narrow equipment spaces.

[0035] As Figure 1 shown, in some embodiments, an annular first clamping groove 2131 is provided on the inner wall surface of the first cylindrical portion 213, and an annular first protrusion 2411 is provided on the outer periphery of the first shaft portion 241. The first protrusion 2411 is installed in the first clamping groove 2131, so that the first shaft portion 241 can be rotatably installed in the first cylindrical portion 213 and will not come out of the first cylindrical portion 213.

[0036] In some embodiments, an annular second clamping groove 2231 is provided on the inner wall surface of the second cylindrical portion 223, and an annular second protrusion 2511 is provided on the outer periphery of the third shaft portion 251. The second protrusion 2511 is installed in the second clamping groove 2231, so that the third shaft portion 251 can be rotatably installed in the second cylindrical portion 223 and will not come out of the second cylindrical portion 223.

[0037] In some embodiments, the first clamping portion 211 and the second clamping portion 221 are elastic clips. Alternatively, the first clamping portion 211 and the second clamping portion 221 can also adopt clips in the prior art, as long as the clamping function is achieved, and no specific limitation is made here.

[0038] As Figure 2 shown, in some embodiments, the display board can be an LED display board or a digital tube display board. The display board can be used to display reminder signs, such as "Do not touch the test box", "Handwheel of a certain system valve", etc. In some embodiments, the display board 10 is generally in a rectangular plate-like structure, and the size of the display board 10 is 200 mm in length, 150 mm in width, and 10 mm in thickness. In some other embodiments, the display board 10 can also adopt a handwritten cardboard, etc. Of course, the display board 10 can be selected and set according to actual needs, and no specific limitation is made here.

[0039] In some embodiments, the anti-misoperation device for nuclear power plants further includes a protective cover 30 for installing the display board 10. Preferably, the protective cover 30 is a plastic protective cover. For example, the protective cover 30 can be made of a hard insulating material, such as phenolic plastic, polyurethane plastic, epoxy plastic, unsaturated polyester plastic, furan plastic, silicone resin, allyl resin, etc. and their modified resins as the matrix. The protective cover 30 is provided with at least one window 31, and the window 31 can be made of transparent plastic. The window 31 is disposed opposite to the display area of the display board 10 to facilitate the display of reminder signs.

[0040] In some embodiments, the protective cover 30 is provided with a plurality of magnetic members 40, and the magnetic members 40 may include permanent magnets. The magnetic members 40 can be embedded in the protective cover 30 or fixed to the protective cover 30 by an adhesive.

[0041] Among them, when using the anti-misoperation device for nuclear power plants in the main control room, relevant text information can be edited on the display board 10, and then the display board 10 is installed in the protective cover 30, and can be adsorbed to the corresponding operation console (the console is made of iron material) through the magnetic members 40 to play a reminder role, so that the display board 10 can be used alone. Of course, it can also be used in conjunction with the connection component 20 to improve the installation stability of the display board 10.

[0042] It can be understood that the anti-misoperation device for nuclear power plants can be fixed on the equipment, such as the valve handwheel to be operated or the drawer switch handle of the distribution board, so that it can be more intuitive to know what equipment to operate, effectively reducing the risk of misoperation. The structure of the anti-misoperation device for nuclear power plants is relatively simple and the manufacturing cost is low, which is conducive to popularization. It can effectively reduce the occurrence of misoperation events and ensure the safe operation of the equipment and the unit.

[0043] It can be understood that the above embodiments only represent the preferred embodiments of the present invention, and the description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention; it should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can also be made, which all belong to the protection scope of the present invention; therefore, all equivalent transformations and modifications made to the scope of the claims of the present invention shall fall within the scope covered by the claims of the present invention.

Claims

1. A device for preventing wrong walking interval in a nuclear power plant, characterized in that: It comprises a display panel (10) and a connection component (20); The connecting assembly (20) comprises a first clamping member (21), a second clamping member (22), a connecting plate (23), a first rotating shaft (24), and a second rotating shaft (25); the first clamping member (21) is used for clamping the display panel (10); the first clamping member (21) comprises a first clamping portion (211), a first plate-shaped portion (212), and a first tubular portion (213); one end of the first plate-shaped portion (212) is connected to the first clamping portion (211), and the other end of the first plate-shaped portion (212) is connected to the first tubular portion (213); the second clamping member (22) comprises a second clamping portion (221), a second plate-shaped portion (222), and a second tubular portion (223); one end of the second plate-shaped portion (222) is connected to the second clamping portion (221), and the other end of the second plate-shaped portion (222) is connected to the second tubular portion (223); A first sleeve (231) and a second sleeve (232) are provided at a first end in the length direction of the connecting plate (23), the first sleeve (231) and the second sleeve (232) are arranged with a relative interval, and the openings of the first sleeve (231) and the second sleeve (232) are arranged with a relative interval; a third sleeve (233) and a fourth sleeve (234) are provided at a second end in the length direction of the connecting plate (23), the third sleeve (233) and the fourth sleeve (234) are arranged with a relative interval, and the openings of the third sleeve (233) and the fourth sleeve (234) are arranged with a relative interval; The first rotating shaft (24) is T-shaped, and comprises a first shaft portion (241) and a second shaft portion (242) which are vertically arranged, the first shaft portion (241) being rotatably mounted in the first cylindrical portion (213), and two ends of the second shaft portion (242) being respectively mounted in the first sleeve (231) and the second sleeve (232); The second rotating shaft (25) is T-shaped, and comprises a third shaft portion (251) and a fourth shaft portion (252) which are vertically arranged. The third shaft portion (251) can be rotatably installed in the second cylindrical portion (223), and the two ends of the fourth shaft portion (252) are respectively installed in the third sleeve (233) and the fourth sleeve (234).

2. The anti-wrong interval device for a nuclear power plant according to claim 1, characterized in that: The inner wall surface of the first cylindrical portion (213) is provided with an annular first groove (2131), and the outer periphery of the first shaft portion (241) is provided with an annular first protrusion (2411), and the first protrusion (2411) is installed in the first groove (2131).

3. The anti-wrong interval device for a nuclear power plant according to claim 1, characterized in that: The inner wall surface of the second cylindrical portion (223) is provided with an annular second groove (2231), and the outer periphery of the third shaft portion (251) is provided with an annular second protrusion (2511), and the second protrusion (2511) is installed in the second groove (2231).

4. The anti-wrong interval device for a nuclear power plant according to claim 1, characterized in that: The nuclear power plant anti-misstep interval device also includes a protective cover (30) for installing the display panel (10).

5. The anti-wrong interval device for a nuclear power plant according to claim 4, characterized in that: The protective cover (30) is provided with a plurality of magnetic attraction members (40).

6. The anti-wrong interval device for a nuclear power plant according to claim 5, characterized in that: The magnetic attraction member (40) comprises a permanent magnet.

7. The anti-wrong interval device for a nuclear power plant according to claim 4, characterized in that: The protective cover (30) is provided with at least one viewing window (31).

8. The anti-wrong interval device for a nuclear power plant according to claim 4, characterized in that: The protective cover (30) is a plastic protective cover.

9. The anti-wrong interval device for a nuclear power plant according to claim 1, characterized in that: The display panel (10) has dimensions of 200 mm in length, 150 mm in width and 10 mm in thickness.

10. The anti-wrong interval device for a nuclear power plant according to claim 1, characterized in that: The first clamping portion (211) and the second clamping portion (221) are elastic clamps.

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