CN111476929A - Electrical equipment maintenance site safety isolation method - Google Patents
Electrical equipment maintenance site safety isolation method Download PDFInfo
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- CN111476929A CN111476929A CN202010363070.9A CN202010363070A CN111476929A CN 111476929 A CN111476929 A CN 111476929A CN 202010363070 A CN202010363070 A CN 202010363070A CN 111476929 A CN111476929 A CN 111476929A
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- maintenance
- isolation
- electrical equipment
- safety
- key
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B63/00—Locks or fastenings with special structural characteristics
- E05B63/14—Arrangement of several locks or locks with several bolts, e.g. arranged one behind the other
- E05B63/143—Arrangement of several locks, e.g. in parallel or series, on one or more wings
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00896—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys specially adapted for particular uses
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention discloses a safety isolation method for an electrical equipment overhaul field, which comprises the following steps: (1) the production operation personnel determines equipment needing power failure, and provides power failure application for the electrical equipment management personnel, the electrical equipment management personnel perform power failure and plate hanging on the equipment according to the application, and meanwhile, an energy isolation lock is arranged at the unique key node of the equipment, and a corresponding unique energy isolation key is delivered to the production operation personnel; (2) production operators place the energy isolation key in the energy isolation box and authorize the maintenance operation permission and the isolation box locking permission to a maintenance team according to the maintenance task; (3) each maintenance team locks the isolation box while picking up the maintenance task, and unlocks the isolation box after completing the maintenance task; (4) and the production operator takes out the energy isolation key after confirming that the energy isolation box is completely unlocked, and provides a power transmission request to an electrical equipment manager.
Description
Technical Field
The invention relates to the technical field of maintenance of electrical equipment, in particular to a safety isolation method for an electrical equipment overhaul field.
Background
When the equipment of industrial and mining enterprises is overhauled, all energy sources (such as water, electricity, oil, gas and the like) transmitted to an overhauling equipment area need to be cut off so as to ensure the safety of the overhauling equipment and an overhauling team. Because the start/stop operation of equipment and the maintenance work of equipment need be accomplished by the personnel of different specialties, and the maintenance of same scope, same regional equipment also can involve the maintenance team of different specialties, and improper coordination or negligence in the work can cause the condition of mistake to the maintenance region, maintenance equipment energy delivery to take place, cause the injury to maintenance team or maintenance equipment. Therefore, when the equipment is overhauled, the major dangerous source (a switch or a valve for transmitting energy to an overhaul area) is generally closed and locked to realize the forced isolation of the peripheral energy source, so that a safe area is formed around the overhaul equipment.
The conventional safety isolation method for the electrical equipment overhaul field generally comprises the following steps: production operators firstly confirm equipment needing power failure, then fill in a machine pump power-on and power-off contact list in an equipment management operation room (substation), and confirm the position number and the state of the power failure equipment together with electrical equipment managers; the electrical equipment management personnel annotate and sign the energy isolation lock number on the 'pump power-on and power-off contact list' together with production operation personnel after carrying out power failure, locking and plate hanging on the equipment; the electrical equipment management personnel give the energy isolation key to production operation personnel, and the production operation personnel give the energy isolation key to a maintenance team; and the maintenance team returns the energy isolation key to the production operator after completing maintenance operation, and the production operator is responsible for handling the power transmission request. Although the method can achieve a certain overhauling and isolating effect, the method has certain limitation and is only suitable for short-period operation of a single overhauling team.
When the same equipment needs a plurality of maintenance teams (different maintenance teams such as dynamic, static, electric and instrument) to perform cross operation, production operators can only adopt the following two measures to realize the effective management of the energy isolation key: one mode is that an energy isolation lock is arranged at a key node position of equipment, and an energy isolation key is handed to one of the maintenance teams for management according to the actual arrangement condition of maintenance tasks, and the mode requires production operators to clearly and definitely master the operation condition of each maintenance team all the time, so that once the production operators are neglected or the maintenance teams are not properly organized in a cross operation manner, the accident of mistakenly transmitting power to the maintenance equipment can be caused, and a large potential safety hazard exists; the other mode is that establish many energy isolation locks on equipment according to the maintenance task to give the energy isolation key one by one and correspond the maintenance team of maintenance task and manage, the key that this kind of mode relates to is more, and the management and control degree of difficulty is great, and has some equipment because the phenomenon of the unable many locks of going up simultaneously of molding structure or other reasons, has certain drawback. Therefore, when the condition that a plurality of maintenance teams of the same equipment perform cross operation exists, the traditional safety isolation method for the electrical equipment maintenance site has certain limitation, and the energy isolation and ordered management cannot be practically and effectively realized.
In addition, the traditional safety isolation method for the electrical equipment overhaul field has the following problems: firstly, the field operation period of the maintenance team is indefinite, and when the maintenance period is long and the multiple shifts of handover are needed, the energy isolation key is easy to lose; secondly, the management measures for energy isolation mainly depend on the technical level and the responsibility of production operators, the subjectivity is strong, and rigid constraints on the management measures are lacked.
Therefore, the safety isolation method for the electrical equipment overhaul field can fully ensure the effectiveness and the safety of energy isolation.
Disclosure of Invention
The invention provides a safety isolation method for an electrical equipment overhaul field, and mainly aims to solve the problems.
The invention adopts the following technical scheme:
a safety isolation method for an electrical equipment overhaul site comprises the following steps:
(1) the production operation personnel determines equipment needing power failure, and provides power failure application for the electrical equipment management personnel, the electrical equipment management personnel perform power failure and plate hanging on the equipment according to the application, and meanwhile, an energy isolation lock is arranged at the unique key node of the equipment, and a corresponding unique energy isolation key is delivered to the production operation personnel;
(2) production operators place the energy isolation key in the isolation box and authorize the maintenance operation permission and the isolation box locking permission to a maintenance team according to the maintenance task;
(3) each maintenance team locks the isolation box while picking up the maintenance task, and unlocks the isolation box after completing the maintenance task;
(4) after confirming that the isolation box is completely unlocked, namely after confirming that all maintenance teams finish maintenance tasks, production operators take out the energy isolation key according to production needs and send a power transmission request to electrical equipment management personnel, and the electrical equipment management personnel unlock, remove the license plate and transmit power to the equipment according to the application.
Further, in the step (2), production operators make operation tickets for maintenance teams according to maintenance tasks, and the maintenance teams acquire maintenance operation permission and isolation box locking permission according to the operation tickets.
Further, in the step (2), the energy isolation box is provided with a task management module, and production operators input maintenance task information through the task management module; and each maintenance team selects respective maintenance task through the task management module, so that maintenance operation permission and isolation box locking permission are obtained.
Further, in the step (3), the isolation box is provided with a plurality of safety locks, and each safety lock is provided with a unique safety key; each maintenance team locks the isolation box by using a designated safety lock while picking up maintenance tasks, and takes away a corresponding safety key; and each maintenance team unlocks the isolation box after completing the maintenance task and returns the corresponding safety key.
Further, in the step (3), the energy isolation box is provided with a safety lock, and a main control module and an identification module which are electrically connected with the safety lock; each maintenance team needs to present a label with team information while picking up maintenance tasks, and the label information is identified and input through an identification module; when the main control module receives the first label information, the safety lock is controlled to be locked; after the maintenance task is completed, each maintenance team needs to show the label of the maintenance team again, and the label information is identified and input again through the identification module; and after the master control module confirms that all the labels are recorded twice, the safety lock is controlled to be unlocked.
Further, the identification module is an RFID read-write module, an NFC induction module or a code scanning module.
Further, in the step (2), the isolation box is provided at an arbitrary position outside the equipment management operation room.
Compared with the prior art, the invention has the beneficial effects that:
1. the safety isolation method for the electrical equipment overhaul field provided by the invention can be suitable for the condition of cross operation of a plurality of overhaul teams on the same equipment, can avoid the occurrence of an accident of mistakenly transmitting power to the overhaul equipment due to negligence of production operators or improper organization of cross operation of each overhaul team, fully ensures the effectiveness of energy isolation and improves the safety of energy isolation.
2. The electric equipment overhaul field safety isolation method provided by the invention can enable each overhaul team to participate in the link of energy isolation, and gives the authority and responsibility of each overhaul team for keeping the energy capacity key, thereby improving the rigid constraint of energy isolation management measures and being beneficial to realizing humanization, orderliness and safety.
3. The energy isolation management box provided by the invention has the advantages of simple structure, ingenious design, convenience in use, wide application range and the like, is beneficial to realizing the ordering and standardization of energy isolation, and improves the safety and effectiveness of energy isolation. In addition, the invention can also effectively prevent the phenomenon that the energy isolation key is lost due to long maintenance period or multi-shift handover of each maintenance team.
Drawings
Fig. 1 is a schematic structural view of a single insulation box in the present invention.
Fig. 2 is a schematic view of the overall structure of the energy isolation management box of the invention.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings. Numerous details are set forth below in order to provide a thorough understanding of the present invention, but it will be apparent to those skilled in the art that the present invention may be practiced without these details.
Referring to fig. 1 and 2, the energy isolation management box comprises at least one isolation box 1 for placing an energy isolation key, wherein the isolation box 1 comprises a box body 11, the box body 11 is hinged with a box door 12, and a plurality of safety locks 13 and safety keys 14 for locking the box door 12 on the box body 11 are arranged.
Referring to fig. 1 and 2, the energy isolation management box further comprises a fixing plate 2 capable of being hung on a wall surface, wherein a propaganda area 21 is arranged on the left side of the fixing plate 2, and a plurality of isolation boxes 1 are arranged on the right side of the fixing plate. The plurality of isolation boxes 1 are arranged on the same fixed plate 2 in a centralized manner, so that the management and operation of production operators can be facilitated; the publicity area 21 can be used for publishing instructions or drawings for the use of the isolation box 1, thereby playing a publicity and warning effect.
Referring to fig. 1 and 2, the energy isolation management box further includes a decorative cover (not shown) covering the exterior of the fixing plate 1 in an openable manner. The cover can play effects such as decoration, dustproof and waterproof simultaneously to the setting, and its specific structure and mounting means can refer to prior art air switch's safety cover and realize, need not add here to describe repeatedly.
Referring to fig. 1 and 2, the box door 12 is provided with a slot 121 for placing the device information card, and an opening of the slot 121 is provided with an arc-shaped abdicating concave portion 122 for conveniently taking and placing the device information card. In order to facilitate the intuitive reading of the information on the device information card, the card slot 121 is made of a transparent material.
Referring to fig. 1 and 2, as a preferred solution: the number of the isolation boxes 1 on the fixing plate 2 is 6, each isolation box 1 is provided with 3 safety locks 13, and each safety lock 13 is provided with a safety key 14.
Referring to fig. 1 and 2, in order to clearly illustrate the use method of the energy isolation management box, a safety isolation method for an electrical equipment overhaul field is described below based on the energy isolation management box, and the method comprises the following steps:
(1) the production operation personnel determines equipment needing power failure, and provides power failure application for the electrical equipment management personnel, the electrical equipment management personnel perform power failure and plate hanging on the equipment according to the application, and meanwhile, an energy isolation lock is arranged at the unique key node of the equipment, and a corresponding unique energy isolation key is delivered to the production operation personnel;
(2) production operators place the energy isolation key in the isolation box 1 and authorize the maintenance operation permission and the isolation box locking permission to a maintenance team according to maintenance tasks;
(3) each maintenance team locks the isolation box 1 while picking up the maintenance task, and unlocks the isolation box 1 after completing the maintenance task;
(4) after confirming that the isolation box 1 is completely unlocked, namely after confirming that all maintenance teams finish maintenance tasks, production operators take out the energy isolation key according to production needs and send a power transmission request to electrical equipment management personnel, and the electrical equipment management personnel unlock, remove the license plate and transmit power to the equipment according to the application.
Specifically, in the step (1), production operators firstly confirm equipment needing power failure, then fill in a machine pump power-on and power-off contact list in an equipment management operation room (substation), and confirm the position number and the state of the power failure equipment together with electrical equipment managers; the electrical equipment management personnel annotate and sign the energy isolation lock number on the 'pump power-on and power-off contact list' together with production operation personnel after carrying out power failure, plate hanging and locking on the equipment; and finally, the only energy isolation key is handed to production operators.
Specifically, in step (2), the production operator places the energy isolation key and the "pump power on/off contact list" in the isolation box 1 at the same time, and places the device information card written with the relevant information such as the power outage device number in the card slot 121 of the isolation box 1.
Specifically, in the step (2), production operators issue operation tickets to each maintenance team according to maintenance tasks, and each maintenance team obtains maintenance operation permission and isolation box locking permission according to the operation tickets.
Specifically, in the step (3), each maintenance team locks the isolation box 1 by using a designated safety lock 13 while picking up maintenance tasks, and takes away a corresponding safety key 14; after the maintenance task is completed, each maintenance team unlocks the isolation box 1 and returns the corresponding security key 14.
Specifically, in step (2), the isolation box 1 is provided at any position outside the equipment management operation room. The requirement of GMG (Global production guide) on energy isolation of equipment management operation rooms (power substations) is as follows: all the operation groups need to be locked and listed on the operation loop of the electrical equipment in the substation at the same time, so that the life safety of all the operation groups is ensured. However, the national standard of China requires that the operation of the electrical equipment is executed by the electrical equipment management personnel with corresponding special operation qualification, irrelevant personnel cannot enter the substation, but most of the personnel responsible for the maintenance operation do not have the special operation qualification, so the personnel cannot enter the operation of the internal energy isolation link of the substation, which conflicts with the requirement of the GMG. Therefore, the isolation box 1 is arranged at any position outside the equipment management operation room, each maintenance team can realize the participation of the energy isolation link without entering the equipment management operation room, and the participation power and responsibility of the key for keeping the energy capacity are realized, so that the safety isolation method of the electrical equipment maintenance site is more humanized, ordered and safe.
It should be noted that, in the present invention, the work transfer mode between the production operator and the maintenance team can be realized by a more intelligent mode such as online transfer, for example: a task management module can be arranged on the isolation box 1, and production operators input maintenance task information through the task management module; and each maintenance team selects respective maintenance task through the task management module, so that maintenance operation permission and isolation box locking permission are obtained.
In addition, the locking mode of the isolation box 1 is not limited to the mechanical locking mode mentioned in this embodiment, and a more integrated and intelligent multi-stage electronic locking mode may also be adopted, for example: a safety lock can be arranged on the isolation box 1, and a main control module and an identification module which are electrically connected with the safety lock are arranged; when each maintenance team receives the maintenance task, the maintenance team displays the label with team information, and the label information is identified and input through the identification module (which is equivalent to that each maintenance team sends a locking instruction to the safety lock through the identification module); when the main control module receives the first label information, the safety lock is controlled to be locked; after the maintenance task is completed, each maintenance team needs to show the label of the maintenance team again and identify and input label information again through the identification module (which is equivalent to that each maintenance team sends an unlocking instruction to the safety lock through the identification module); and after the master control module confirms that all the labels are recorded twice, the safety lock is controlled to be unlocked. As a preferable scheme: the identification module is an RFID read-write module, an NFC induction module or a code scanning module.
The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.
Claims (7)
1. A safety isolation method for an electrical equipment overhaul site is characterized by comprising the following steps: the method comprises the following steps:
(1) the production operation personnel determines equipment needing power failure, and provides power failure application for the electrical equipment management personnel, the electrical equipment management personnel perform power failure and plate hanging on the equipment according to the application, and meanwhile, an energy isolation lock is arranged at the unique key node of the equipment, and a corresponding unique energy isolation key is delivered to the production operation personnel;
(2) production operators place the energy isolation key in the energy isolation box and authorize the maintenance operation permission and the isolation box locking permission to a maintenance team according to the maintenance task;
(3) each maintenance team locks the isolation box while picking up the maintenance task, and unlocks the isolation box after completing the maintenance task;
(4) after the production operating personnel confirm that the energy isolation box of the maintenance team is completely unlocked, namely after all maintenance teams finish maintenance tasks, the production operating personnel take out the energy isolation key according to production needs and provide a power transmission request to the electrical equipment management personnel, and the electrical equipment management personnel unlock, remove the license plate and transmit power to the equipment according to the application.
2. The electrical equipment overhaul field safety isolation method of claim 1, wherein: in the step (2), production operators make operation tickets for maintenance teams according to maintenance tasks, and the maintenance teams acquire maintenance operation permission and isolation box locking permission according to the operation tickets.
3. The electrical equipment overhaul field safety isolation method of claim 1, wherein: in the step (2), the isolation box is provided with a task management module, and production operators input maintenance task information through the task management module; and each maintenance team selects respective maintenance task through the task management module, so that maintenance operation permission and isolation box locking permission are obtained.
4. An electrical equipment overhaul field safety isolation method as claimed in claim 2 or 3 wherein: in the step (3), the isolation box is provided with a plurality of safety locks, and each safety lock is provided with a unique safety key; each maintenance team locks the isolation box by using a designated safety lock while picking up maintenance tasks, and takes away a corresponding safety key; and each maintenance team unlocks the isolation box after completing the maintenance task and returns the corresponding safety key.
5. An electrical equipment overhaul field safety isolation method as claimed in claim 2 or 3 wherein: in the step (3), the isolation box is provided with a safety lock, and a main control module and an identification module which are electrically connected with the safety lock; each maintenance team needs to present a label with team information while picking up maintenance tasks, and the label information is identified and input through an identification module; when the main control module receives the first label information, the safety lock is controlled to be locked; after the maintenance task is completed, each maintenance team needs to show the label of the maintenance team again, and the label information is identified and input again through the identification module; and after the master control module confirms that all the labels are recorded twice, the safety lock is controlled to be unlocked.
6. The electrical equipment overhaul field safety isolation method of claim 5, wherein: the identification module is an RFID read-write module, an NFC induction module or a code scanning module.
7. The electrical equipment overhaul field safety isolation method of claim 1, wherein: in the step (2), the isolation box is arranged at any position outside the equipment management operation room.
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| CN202010363070.9A CN111476929B (en) | 2020-04-30 | 2020-04-30 | Electrical equipment maintenance site safety isolation method |
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| CN202010363070.9A CN111476929B (en) | 2020-04-30 | 2020-04-30 | Electrical equipment maintenance site safety isolation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112110156A (en) * | 2020-08-26 | 2020-12-22 | 包头钢铁（集团）有限责任公司 | Method for rapidly processing belt accident of coal preparation system |
| CN112150673A (en) * | 2020-09-21 | 2020-12-29 | 武汉瑞莱保能源技术有限公司 | Electrical equipment isolation management and control system based on Internet of things technology |
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| 陈新标: "隔离钥匙箱制度在企业资产管理系统中的应用", 《华电技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112110156A (en) * | 2020-08-26 | 2020-12-22 | 包头钢铁（集团）有限责任公司 | Method for rapidly processing belt accident of coal preparation system |
| CN112150673A (en) * | 2020-09-21 | 2020-12-29 | 武汉瑞莱保能源技术有限公司 | Electrical equipment isolation management and control system based on Internet of things technology |
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| CN111476929B (en) | 2022-05-20 |
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