Marking tool for preventing mistaken electrical interval in nuclear power plant

By using magnetic marking tools with color and prompt information in nuclear power plants, the problem of easy errors in circuit breaker intervals is solved, and the effect of reducing the risk of misoperation and improving operation safety is achieved.

CN222337797UActive Publication Date: 2025-01-10FUJIAN NINGDE NUCLEAR POWER
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Patent Information

Application Number
CN202421157927.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-24
Publication Date
2025-01-10
Estimated Expiration
2034-05-24

AI Technical Summary

Technical Problem

In nuclear power plants, due to the similar appearance of circuit breaker interval switches, operators are prone to go through the wrong intervals, resulting in frequent misoperation. Existing methods such as singing tickets loudly or instructing operators to consume manpower and increase the risk of electric shock, which has poor results.

Method used

Design a marking tool including magnetic parts and portable pendants with color. The magnetic parts can be magnetically adsorbed on the circuit breaker interval switch. The color is different from the conventional color of the compartment, which is eye-catching reminder, combined with prompts and coding layers, which is convenient for staff. Identify the correct interval.

Benefits of technology

It effectively reduces the risk of errors in the wrong electrical interval, reduces the misoperation of operators, improves operational safety, and does not require additional manpower support.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a marking tool for preventing mistaken electrical intervals in a nuclear power plant, which comprises a colored magnetic piece and a portable hanging piece, the magnetic piece comprises a magnetic body and a first connecting part, and the first connecting part is arranged on the magnetic body or fixedly connected with the magnetic body; the portable pendant comprises a second connecting part and a hanging part, and the second connecting part is connected with the hanging part and detachably connected with the first connecting part; the magnetic body is of a sheet-shaped structure or a columnar structure made of a magnetic plastic material. The marking tool for preventing mistaken operation of the electrical compartment in the nuclear power plant comprises the colored magnetic piece and the portable hanging piece, the portable hanging piece is convenient for a worker to carry about, and the magnetic piece can be magnetically adsorbed on a circuit breaker compartment switch panel needing to be operated, so that the electrical compartment needing to be operated is accurately marked, and the working efficiency is improved. And the color can be different from the conventional color of the compartment, striking reminding is achieved, workers are prevented from going wrong compartments, and the error risk is reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of nuclear power plant electrical technology, in particular to a marking tool for preventing a nuclear power plant from going into a wrong electrical interval. Background Art

[0002] The electrical panels of nuclear power plants are equipped with a large number of circuit breaker bay switches that look the same but have different codes and downstream equipment. It is very easy for operators to go to the wrong bay and mistakenly operate the switches in adjacent bays, which can have serious consequences.

[0003] At present, the method of requiring operators to read out loudly to reduce errors is widely used, but the effect is minimal, and the incidents of going to the wrong electrical interval still occur frequently. Another method is to require another operator to keep pointing his finger at the equipment to be operated, which can greatly avoid errors, but it will consume one more person and increase the risk of electric shock to the operator. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a marking tool for preventing a nuclear power plant from going into the wrong electrical interval.

[0005] The utility model solves the technical problem by adopting a technical solution: a marking tool for preventing a nuclear power plant from going into the wrong electrical interval, comprising:

[0006] A colored magnetic part includes a magnetic body and a first connecting portion, wherein the first connecting portion is provided on the magnetic body or the first connecting portion is fixedly connected to the magnetic body;

[0007] The portable pendant comprises a second connecting portion and a hanging portion, wherein the second connecting portion is connected to the hanging portion and is detachably connected to the first connecting portion;

[0008] The magnetic body is a sheet-like structure or a columnar structure made of magnetic plastic material.

[0009] Preferably, in the marking tool for preventing wrong electrical intervals in a nuclear power plant described in the utility model, the first connecting portion is a through hole.

[0010] Preferably, in the marking tool for preventing wrong electrical intervals in a nuclear power plant described in the utility model, the magnetic member further comprises a hollow rivet, and the hollow rivet is fixed on the first connecting part and connected to the second connecting part.

[0011] Preferably, in the marking tool for preventing the operator from going into the wrong electrical compartment in a nuclear power plant described in the utility model, the marking tool is provided with a first layer of prompts, and the first layer is pasted or printed on the surface of the magnetic part to remind the staff to perform operations in a standardized manner.

[0012] Preferably, in the marking tool for preventing a nuclear power plant from going into the wrong electrical interval as described in the utility model, the marking tool also includes a second layer with a code, and the second layer is pasted or printed on the surface of the magnetic part for the convenience of management of the marking tool.

[0013] Preferably, in the marking tool for preventing the nuclear power plant from going into the wrong electrical interval as described in the utility model, the magnetic body is a magnetic card made of a rubber soft magnetic sheet.

[0014] Preferably, in the marking tool for preventing wrong electrical intervals in a nuclear power plant described in the utility model, the magnetic part also includes at least one color layer of red, blue, yellow, green, black, white, purple or orange, and the color layer is pasted on the outer surface of the magnetic body.

[0015] Preferably, in the marking tool for preventing wrong electrical intervals in a nuclear power plant described in the utility model, the magnetic body is in the shape of a circle, an ellipse, a polygon or an irregular closed curve.

[0016] Preferably, in the marking tool for preventing wrong electrical intervals in a nuclear power plant described in the utility model, the portable pendant is a spring universal hook, and the second connecting part is rotatably connected to the hanging part.

[0017] Preferably, in the marking tool for preventing wrong electrical compartments in a nuclear power plant described in the utility model, the hanging part is a hook, a clip, a lanyard or a key ring.

[0018] By implementing the utility model, the following beneficial effects are achieved:

[0019] The utility model provides a marking tool for preventing workers from going into the wrong electrical compartment in a nuclear power plant, comprising a colored magnetic part and a portable pendant. The portable pendant is convenient for workers to carry with them, and the magnetic part can be magnetically adsorbed on the switch panel of the circuit breaker compartment that needs to be operated, accurately marking the electrical compartment that needs to be operated. The color can be distinguished from the regular color of the compartment, providing a striking reminder, preventing workers from going into the wrong compartment, and reducing the risk of mistakes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0021] Figure 1 This is a schematic diagram of the structure of a marking tool for preventing a nuclear power plant from going into the wrong electrical compartment according to an embodiment of the utility model;

[0022] Figure 2 yes Figure 1 A schematic diagram of the structure of a magnetic component;

[0023] Figure 3 yes Figure 1 Schematic diagram of the structure of a portable pendant. DETAILED DESCRIPTION

[0024] In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation methods of the present utility model are now described in detail with reference to the accompanying drawings.

[0025] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0026] In the description of the utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a chemical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0028] See also Figure 1 One embodiment of the utility model discloses a marking tool for preventing a person from entering the wrong electrical compartment in a nuclear power plant, which can be magnetically attached to the circuit breaker compartment switch panel. It can be understood that in some other embodiments, the marking tool of the utility model can also be attached to other objects that need to be operated to provide a conspicuous mark to prevent wrong entry.

[0029] The marking tool comprises a colored magnetic piece 1 and a portable pendant 2. Figure 1The size and size ratio of the magnetic part 1 and the portable pendant 2 are only used as a reference and are not intended to be a limitation of the present invention. The magnetic part 1 includes a magnetic body 11 and a first connecting portion 12, and the first connecting portion 12 is provided on the magnetic body 11 or the first connecting portion 12 is fixedly connected to the magnetic body 11. Among them, the magnetic body 11 is made of a magnetic plastic material, such as a magnetic card made of a rubber soft magnetic sheet. The magnetic body 11 can be circular, elliptical, polygonal or in an irregular closed curve shape. Preferably, the magnetic body 11 itself can be made of a colored material, and the color of the magnetic body 11 can be red, blue, yellow, green, black, white, purple or orange, etc.

[0030] It can be understood that in some other embodiments, the magnetic member 1 includes a color layer, the color of the color layer can be one color or a combination of multiple colors, such as red, blue, yellow, green, black, white, purple or orange, and the color layer is pasted on the outer surface of the magnetic body 11.

[0031] Further, see Figure 2 In order to facilitate carrying, the first connecting portion 12 is a through hole, and the magnetic member 1 further includes a hollow rivet 3, which is fixed on the first connecting portion 12 and is connected to the portable pendant 2.

[0032] See also Figure 3 The portable pendant 2 includes a second connection portion 21 and a hanging portion 22, wherein the second connection portion 21 is connected to the hanging portion 22 and is detachably connected to the first connection portion 12. Preferably, the portable pendant 2 is a spring universal hook, wherein the second connection portion 21 is rotatably connected to the hanging portion 22. The spring universal hook is a prior art, and the utility model will not be described in detail herein.

[0033] It can be understood that the portable pendant 2 is intended to be carried by the staff. In some other embodiments, the hanging portion 22 can be a hook, a clip, a lanyard or a key ring, etc., which is convenient for carrying. It can be clamped on outer clothes, worn on the hand, hung around the neck, or connected in series with items such as keys. Preferably, the second connecting portion 21 and the hanging portion 22 can be an integrated structure.

[0034] Furthermore, if Figure 2As shown, in order to standardize the operation, the marking tool also includes a first layer (4) with prompts, and the first layer (4) is pasted or printed on the surface of the magnetic part 1 to remind the staff to standardize the operation. Among them, when the first layer 4 is a sticker, it can be pasted on the surface of the magnetic body 11. When the first layer 4 is a coating, it can also be directly attached to the surface of the magnetic body 11 by printing, spraying, etc. The function of the prompt is to remind the staff to standardize the operation. For example, the prompt is "sing the number information of the circuit breaker interval switch before operation, so that the operator can check whether he or others have entered the correct compartment. It can be understood that in some other embodiments, what kind of prompt is needed can be determined according to actual needs, and the utility model does not limit it here.

[0035] In order to prevent loss and identify the identity of the identity carrier, the marking tool also includes a second layer (5) with a code, and the second layer (5) is pasted or printed on the surface of the magnetic part 1 for the management of the marking tool. Among them, when the second layer 5 is a sticker, it can be pasted on the surface of the magnetic body 11. When the second layer 5 is a coating, it can also be directly attached to the surface of the magnetic body 11 by printing, spraying, etc. The role of the number is to facilitate the management of the marking tool. For example, each number can correspond to an operator, and the identity of the operator can also be understood through the code for easy management. It can be understood that in some other embodiments, the form and meaning of the specific number can be determined according to the actual situation, and the utility model is not limited here.

[0036] Since both the first layer 4 and the second layer 5 play a display role, the first layer 4 and the second layer 5 need to be distributed in different positions to show their display functions separately to prevent each other from overlapping. Figure 2 A positional relationship between the first layer 4 and the second layer 5 is shown, the first layer 4 is arranged in the middle of the magnetic body 11, and the second layer 5 is arranged in the lower right corner of the magnetic body 11. It can be understood that in some other embodiments, the specific position and size of the first layer 4 and the second layer 5 can be determined according to actual conditions, and the utility model does not limit this.

[0037] By implementing the utility model, the following beneficial effects are achieved:

[0038] The marking tool for preventing a worker from walking into a wrong electrical compartment in a nuclear power plant of the utility model comprises a colored magnetic part 1 and a portable pendant 2. The portable pendant 2 is convenient for a worker to carry with him, and the magnetic part 1 can be magnetically adsorbed on the switch panel of the circuit breaker compartment that needs to be operated, so as to accurately mark the electrical compartment that needs to be operated. The color can be distinguished from the conventional color of the compartment, which serves as a striking reminder, prevents the worker from walking into the wrong compartment, and reduces the risk of mistakes.

[0039] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the utility model; it should be pointed out that for ordinary technicians in this field, without departing from the concept of the utility model, the above embodiments or technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model, that is, the embodiments described in "some embodiments" can be freely combined with any of the above and below embodiments; therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. A marking tool for preventing the wrong electrical compartment in a nuclear power plant, characterized in that: include A colored magnetic part (1) comprises a magnetic body (11) and a first connecting portion (12), wherein the first connecting portion (12) is provided on the magnetic body (11) or the first connecting portion (12) is fixedly connected to the magnetic body (11); A portable pendant (2), comprising a second connecting portion (21) and a hanging portion (22), wherein the second connecting portion (21) is connected to the hanging portion (22) and is detachably connected to the first connecting portion (12); The magnetic body (11) is a sheet-like structure or a columnar structure made of magnetic plastic material.

2. The marking tool for preventing wrong electrical compartments in a nuclear power plant according to claim 1, characterized in that: The first connecting portion (12) is a through hole.

3. The marking tool for preventing wrong electrical compartments in a nuclear power plant according to claim 2, characterized in that: The magnetic component (1) further comprises a hollow rivet (3), wherein the hollow rivet (3) is fixed on the first connecting portion (12) and is connected to the second connecting portion (21).

4. The marking tool for preventing wrong electrical compartments in a nuclear power plant according to claim 1, characterized in that: The marking tool also includes a first layer (4) provided with prompts, wherein the first layer (4) is pasted or printed on the surface of the magnetic piece (1) to prompt the staff to perform standardized operations.

5. The marking tool for preventing wrong electrical compartments in a nuclear power plant according to claim 1, characterized in that: The marking tool also includes a second layer (5) provided with a code, and the second layer (5) is pasted or printed on the surface of the magnetic piece (1) for the convenience of management of the marking tool.

6. The marking tool for preventing wrong electrical compartments in a nuclear power plant according to claim 1, characterized in that: The magnetic body (11) is a magnetic card made of a rubber soft magnetic sheet.

7. The marking tool for preventing wrong electrical compartments in a nuclear power plant according to claim 6, characterized in that: The magnetic member (1) further comprises at least one color layer of red, blue, yellow, green, black, white, purple or orange, and the color layer is adhered to the outer surface of the magnetic body (11).

8. The marking tool for preventing wrong electrical compartments in a nuclear power plant according to any one of claims 1 to 7, characterized in that: The magnetic body (11) is in the shape of a circle, an ellipse, a polygon or an irregular closed curve.

9. The marking tool for preventing wrong electrical compartments in a nuclear power plant according to any one of claims 1 to 7, characterized in that: The portable hanging part (2) is a spring universal hook, and the second connecting part (21) is rotatably connected to the hanging part (22).

10. The marking tool for preventing wrong electrical compartments in a nuclear power plant according to any one of claims 1 to 7, characterized in that: The hanging part (22) is a hook, a clip, a lanyard or a key ring.