CN109167290B - Brake error preventing device for preventing misoperation in limited space operation and control method - Google Patents
Brake error preventing device for preventing misoperation in limited space operation and control method Download PDFInfo
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- CN109167290B CN109167290B CN201810961632.2A CN201810961632A CN109167290B CN 109167290 B CN109167290 B CN 109167290B CN 201810961632 A CN201810961632 A CN 201810961632A CN 109167290 B CN109167290 B CN 109167290B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B15/00—Supervisory desks or panels for centralised control or display
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Abstract
The invention relates to a braking error prevention device and a control method for preventing manual error operation aiming at safety protection of limited space operators, and belongs to the field of equipment management. The braking error prevention device includes: the face recognition system comprises a display, a face recognition system, a work board storage device, a controller, an electric control switch and a control air pipeline electromagnetic valve; the method comprises the following steps: 1) Closing the corresponding valves and cutting off the power supply lines of the valves; 2) Performing face recognition; 3) The work cards are taken away and carried; 4) Performing face recognition; 5) Displaying a face recognition result; 6) Executing corresponding content according to the face recognition result; 7) Recovering the work cards; 8). Executing corresponding content according to the recovering result of the work cards; 9) And (5) recovering the system.
Description
Technical Field
The invention belongs to the field of equipment management, and particularly relates to a brake misoperation prevention device for preventing misoperation in limited space operation and a control method.
Technical Field
The isolating device of the electric, pneumatic and manual valve in the connecting pipeline system of the limited space equipment of the power generation enterprises or other enterprises has terrible misoperation accident hidden trouble. Especially when the limited space is overhauled by closing the valve in the operation equipment or system, if the operator performs misoperation, mistakenly opens the valve and other actions in the overhauling and defect eliminating operation process of the overhauler, the consequences are inconceivable, and the serious personal injury accident of the operator is easily caused.
The major accident of death of 3 persons in the original Changshan thermal power plant of 2016, 2, 23 and Ji Linsong is casualties caused by manual misoperation in limited space operation. Therefore, aiming at equipment which is free of frequent operation of a thermal power plant, constitutes limited space operation and has similar dangers, the limited space operation safety protection device is developed, forced locking is realized, the safety of limited space operation personnel is effectively protected, the operation safety management capability of the thermal power plant is improved, and the device has very important significance and practicability.
Disclosure of Invention
In order to solve the above-mentioned technical problems, the present invention provides a brake error prevention device for preventing misoperation in limited space operation, comprising: the safety braking error prevention device for preventing misoperation in limited space operation comprises: the face recognition system comprises a display, a face recognition system, a work board storage device, a controller and an electric control switch;
the limited space safety protection device is used for controlling the connection and disconnection of a power supply circuit of a valve of limited space equipment, namely a circuit for controlling a valve power supply connected in the limited space;
the face recognition system is connected with the controller and is used for recording or recognizing the facial feature data of the overhauling personnel entering the limited space operation so as to determine the identity information of the overhauling personnel entering the limited space operation and send the identity information to the controller;
the display is arranged in the safety protection control box and connected with the controller, and is used for displaying the working state of the safety braking error-preventing device;
the working cards are contained in the working card containing device or held by an maintainer; the number of the working cards is a plurality of electromagnetic cards with the same specification;
the work card storage device is arranged in the control box and is connected with the controller; the working card accommodating device is provided with a plurality of clamping grooves for accommodating the working cards; the clamping groove has an electromagnetic card detection function and is used for identifying whether a work card is contained in the clamping groove or not and notifying the work card to the controller;
the electric control switches are respectively connected in series with valve power supply lines in the limited space control system and are used for controlling the connection and disconnection of the valve power supply lines;
the controller is arranged in the control box and connected with each electric control switch and used for controlling the opening and closing of each electric control switch, so that the power supply of the valve in each limited space control system is controlled to be switched on and off.
When the valve of the limited space equipment is an electric valve, the braking error preventing device controls the connection and disconnection of a power supply circuit of the valve of the limited space equipment;
when the valve of the limited space equipment is a pneumatic valve, the braking error-preventing device controls the on and off of a power supply circuit of an air source pipeline electromagnetic valve of the limited space equipment.
A control method of a brake error prevention device for preventing misoperation in limited space operation adopts the brake error prevention device for preventing misoperation in limited space operation, and comprises the following steps:
step 1, 1 or a plurality of maintenance personnel needing to enter a limited space, and submitting a working ticket for recording maintenance contents to an operator when the maintenance personnel plan to maintain equipment; the operator receives the working ticket, makes isolation measures in a limited space according to the overhaul content, closes corresponding valves according to the working content of the working ticket, and cuts off the power supply lines of the valves;
step 2, after the operation isolation measures are completed, operators sign working tickets, maintenance staff can start work, at the moment, the operators successively send working cards to each maintenance staff and conduct face recognition through a face recognition system, and face feature data recognized by the operators are input into a controller; if the operation is successful, the controller controls the display to display the word pattern of successful facial recognition, otherwise, the word pattern of unsuccessful facial recognition is displayed, and the maintainer carries out facial recognition again until the display displays the word pattern of successful facial recognition;
after at least one successful facial recognition is performed, the controller controls the electric control switch to be switched off;
step 3, each maintainer takes away and carries a work card from the work card accommodating device; the working card storage device transmits the storage condition of the working cards to the controller in real time, so that the controller judges the condition that the working cards are taken away; the controller controls the display to display numbers at positions corresponding to the work cards; when the work card is not removed, the number is 0; when 1 work card is removed, the number is 1, 2 cards are removed, the number is 2, and so on, the number also indicates the number of service personnel working in a limited space;
when any working card is taken away, the controller controls the electric control switch to be switched off;
step 4, after the maintenance personnel finish the maintenance work, returning to the operator to process the maintenance work finish closed work ticket after leaving the limited space, at this time, each maintenance personnel carries out face recognition through the face recognition system, and inputs the face feature data recognized by each maintenance personnel into the controller;
step 5, if the facial feature data input into the controller is matched with the identity information obtained in the step 2, the operation is successful, and the controller controls the display to display a word of 'successful facial recognition'; otherwise, displaying the character of 'unsuccessful' of facial recognition, and carrying out facial recognition again by the maintainer until the character of 'successful' of facial recognition is displayed by the display;
step 6, if the facial feature data input into the controller in step 5 are all matched with the identity information obtained in step 2, all maintenance personnel are all separated from the limited space and returned to the safe area, and the controller controls the display to display a word of 'all successful facial recognition', and the step 7 is entered; if the facial feature data input into the controller are not all matched with the identity information obtained in the step 2, the operation is unsuccessful, and the step 4 is returned;
step 7, the service personnel inserts the work cards held by the service personnel into the empty clamping grooves of the work card accommodating device until all the work cards are accommodated in the work card accommodating device, and then the controller controls the power supply circuit of each valve to be connected through the electric control switch;
the working card storage device transmits the storage condition of the working cards to the controller in real time, so that the controller judges the recovery condition of the working cards; when the work card at the corresponding position is not inserted into the reset, the number is not 0, which indicates that people still exist in the limited space; only all the corresponding positions of all the working cards are inserted into reset, and the number is 0;
and 8, opening corresponding valves by operators according to the working contents of the working ticket to restore the limited space system to be put into operation.
The invention has the beneficial effects that:
the invention provides a braking error prevention device and a control method for preventing manual error operation aiming at limited space operation.
According to the invention, through analyzing and researching the characteristic systems such as pneumatic, electric valve and machine flashboard used for isolating the condenser, deaerator and the like of the thermal power plant, the coal mill and the like and the container equipment in the chemical industry with pipeline connection, the safety protection function of limited space operators is developed, the braking error prevention device for preventing the equipment such as the electric, pneumatic, manual valve and flashboard from being operated by man-made errors is provided, the safety technical measures for avoiding similar accidents in limited space operation are provided, the reliable precaution measures are provided for the safety operation of the electric, pneumatic and manual valve and flashboard in the fields such as electric power and chemical industry in China, and the contribution is made for guaranteeing the life safety of the operators and improving the safety production of enterprises.
The invention introduces the face recognition technology into the safety management of limited space operation by utilizing an intelligent means, and provides the device and the control method aiming at the operation characteristics of pneumatic, electric, manual or flashboard of the limited space. The invention correlates the face recognition confirmation with the operation card key and correlates the operation card with the display 1, thus realizing the safety management of limited space operation, upgrading the operation card key to the innovative safety locking management of the face recognition of the operator from the traditional management modes of relying on the working ticket, hanging the forbidden operation card and the like, forcibly avoiding misoperation behaviors and ensuring the absolute safety of the operator.
The pneumatic, electric and manual valve or flashboard electronic and mechanical misoperation-preventing locking device developed by the invention effectively solves the safety measure problem of limited space operation, can implement safety protection on important systems, and fills the gap at home and abroad. The application of the invention realizes the safety management of limited space operation, upgrades the traditional management modes of relying on working tickets, hanging forbidden operation cards and the like, improves the safety management to the innovative safety locking management of face recognition of operators, forcibly eliminates misoperation behaviors, ensures the absolute safety of the operators, effectively avoids the occurrence of serious casualties, contributes to the safety production of power generation enterprises, and has huge social benefits.
A unit of a thermal power enterprise is provided with a plurality of finite space equipment like condensers, deaerators, coal mills and the like, each finite space equipment is connected with a plurality of pneumatic and electric valves, and valves of medium pipelines such as steam, high-temperature water supply, condensate water, oil, combustible gas and the like isolated by the isolation valves are required to have a safety protection function, so that a locking device for preventing human misoperation is realized, and misoperation is avoided, thereby causing casualties. Meanwhile, the container equipment in the chemical industry is also a limited space after isolation, and the same potential safety hazard exists. Therefore, the development result has huge popularization prospect in the power industry and the chemical industry, and has the condition of comprehensive popularization and application of the industry.
The invention fundamentally solves the safety protection function of pneumatic, electric and manual valves, realizes the problem of misoperation prevention, realizes the safety management of limited space operation, upgrades the traditional management modes of relying on working tickets, hanging forbidden operation cards and the like, improves the innovative safety locking management for face recognition of operators, forcibly stops misoperation behaviors, ensures the absolute safety of the operators, effectively avoids the occurrence of serious casualties similar to the thermal power plants in the long mountain, and contributes to the safety production of power generation enterprises.
The invention has reasonable design, easy realization and good practical value.
Drawings
Fig. 1 is a schematic structural view of a brake error preventing device for preventing misoperation in limited space operation according to an embodiment of the present invention.
In the figure: 1. a display; 2. a face recognition system; 3. a work board; 4. a work card storage device; 5. a controller; 6. an electric control switch; 7. and a power supply circuit of the valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The invention provides a brake misoperation prevention device for preventing misoperation in limited space operation, which is used for preventing misoperation of a valve of limited space equipment;
the limited space safety protection device is used for controlling the connection and disconnection of a power supply circuit 7 of a valve of limited space equipment on a circuit of a valve power supply connected in a limited space;
when the valve of the limited space equipment is an electric valve, the braking error preventing device controls the connection and disconnection of a power supply circuit of the valve of the limited space equipment;
when the valve of the limited space equipment is a pneumatic valve, the braking error preventing device controls the on and off of a power supply circuit of an air source pipeline electromagnetic valve of the limited space equipment;
the safety brake error preventing device for preventing misoperation in limited space operation, as shown in fig. 1, comprises: a display 1, a face recognition system 2, a work card 3, a work card accommodating device 4, a controller 5 and an electric control switch 6;
the face recognition system 2 is connected with a controller 5; facial feature data for recording or identifying an operator who enters the limited space operation to determine identity information of the operator who enters the limited space operation and send the identity information to the controller 5;
the display 1 is arranged in the safety protection control box and connected with the controller 5, and is used for displaying the working state of the safety braking error-preventing device;
the work card 3 is accommodated in the work card accommodating device 4 or held by an overhaul personnel; the number of the working cards 3 is a plurality of electromagnetic cards with the same specification;
the work card accommodating device 4 is arranged in the control box and is connected with the controller 5; the work card accommodating device 4 is provided with a plurality of clamping grooves for accommodating the work cards 3; the clamping groove has an electromagnetic card detection function and is used for identifying whether the working card 3 is contained in the clamping groove or not and notifying the working card to the controller 5;
the electric control switches 6 are respectively connected in series with power supply lines 7 of valves in the limited space control system and are used for controlling the connection and disconnection of the power supply lines 7 of the valves;
the controller 5 is installed in the control box and connected with each electric control switch 6, and is used for controlling the opening and closing of each electric control switch 6, so as to realize the on-off control of the power supply of the valve in each limited space control system.
A control method of a brake error prevention device for preventing misoperation in limited space operation, which adopts the brake error prevention device for preventing misoperation in limited space operation, comprises the following steps:
step 1, 1 or a plurality of maintenance personnel needing to enter a limited space, and submitting a working ticket for recording maintenance contents to an operator when the maintenance personnel plan to maintain equipment; the operator receives the working ticket, makes isolation measures of overhaul equipment (limited space) according to overhaul contents, closes corresponding valves according to the working contents of the working ticket, and cuts off power supply lines 7 of the valves;
step 2, after the operation isolation measures are completed, operators sign working tickets, and maintenance staff start working, at the moment, the operators successively send working cards 3 to each maintenance staff and perform face recognition through the face recognition system 2, and the face feature data recognized by the operators are input into the controller 5; if the operation is successful, the controller 5 controls the display 1 to display the word pattern of 'successful face recognition', otherwise, the word pattern of 'unsuccessful face recognition' is displayed, and the maintainer carries out face recognition again until the display 1 displays the word pattern of 'successful face recognition';
after at least one successful facial recognition, the controller 5 controls the electric control switch 6 to be turned off;
step 3, each maintainer takes away and carries one work card 3 from the work card accommodating device 4; the working card storage device 4 transmits the storage condition of the working cards to the controller 5 in real time, so that the controller 5 judges the condition that the working cards 3 are taken away; the controller 5 controls the display 1 to display numerals at positions corresponding to the workcards 3; when the work card 3 is not removed, the number is 0; when 1 of the work cards 3 is removed, the number is 1, 2 cards are removed, the number is 2, and so on, the number also indicates the number of maintenance personnel working in a limited space;
when any work card 3 is taken away, the controller 5 controls the electric control switch 6 to be turned off;
step 4, after the maintenance personnel finish the maintenance work, returning to the operator to process the maintenance work finish closed work ticket after leaving the limited space, at this time, each maintenance personnel carries out face recognition through the face recognition system 2, and inputs the face feature data recognized by each maintenance personnel into the controller 5;
step 5, if the facial feature data input into the controller 5 is matched with the identity information obtained in the step 2, the operation is successful, and the controller 5 controls the display 1 to display a word of 'successful facial recognition'; otherwise, displaying the character of 'unsuccessful' of facial recognition, and the maintainer re-performs facial recognition until the display 1 displays the character of 'successful' of facial recognition;
step 6, if the facial feature data input into the controller 5 in step 5 are all matched with the identity information obtained in step 2, indicating that all maintenance personnel leave the limited space and return to the safe area, the controller 5 controls the display 1 to display a word of 'successful facial recognition', and the step 7 is entered; if the facial feature data input into the controller 5 are not all matched with the identity information obtained in the step 2, the operation is unsuccessful, and the step 4 is returned;
step 7, the maintainer inserts the work cards 3 held by the maintainers into the empty clamping grooves of the work card accommodating device 4 until all the work cards 3 are accommodated in the work card accommodating device 4, and then the controller 5 controls the power supply circuit 7 of each valve to be connected through the electric control switch 6;
the working card storage device 4 transmits the storage condition of the working cards to the controller 5 in real time, so that the controller 5 judges the recovery condition of the working cards 3; when the work card 3 at the corresponding position is not inserted into the reset, the number is not 0, which indicates that people still exist in the limited space; only all the corresponding positions of all the work cards 3 are inserted into reset, and the number is 0;
and 8, opening corresponding valves by operators according to the working contents of the working ticket to restore the limited space system to be put into operation.
Claims (1)
1. A control method of a brake error prevention device for preventing an erroneous operation in a limited space operation, characterized by being implemented by adopting the brake error prevention device for preventing an erroneous operation in a limited space operation, the brake error prevention device comprising: the face recognition system comprises a display, a face recognition system, a work board storage device, a controller and an electric control switch;
the braking error-preventing device is used for controlling the connection and disconnection of a power supply circuit of a valve of limited space equipment on a circuit of a valve power supply connected in the limited space;
the face recognition system is connected with the controller and is used for recording or recognizing the facial feature data of the overhauling personnel entering the limited space operation so as to determine the identity information of the overhauling personnel entering the limited space operation and send the identity information to the controller;
the display is arranged in the control box and connected with the controller and used for displaying the working state of the braking error-preventing device;
the working cards are contained in the working card containing device or held by an maintainer; the number of the working cards is a plurality of electromagnetic cards with the same specification;
the work card storage device is arranged in the control box and is connected with the controller; the working card accommodating device is provided with a plurality of clamping grooves for accommodating the working cards; the clamping groove has an electromagnetic card detection function and is used for identifying whether a work card is contained in the clamping groove or not and notifying the work card to the controller;
the electric control switches are respectively connected in series with valve power supply lines in the limited space control system and are used for controlling the connection and disconnection of the valve power supply lines;
the controller is arranged in the control box and connected with each electric control switch and used for controlling the opening and closing of each electric control switch so as to realize the on-off control of the power supply of the valve in each limited space control system;
when the valve of the limited space equipment is an electric valve, the braking error preventing device controls the connection and disconnection of a power supply circuit of the valve of the limited space equipment;
when the valve of the limited space equipment is a pneumatic valve, the braking error preventing device controls the on and off of a power supply circuit of an air source pipeline electromagnetic valve of the limited space equipment;
a control method of a brake error prevention device for preventing misoperation in limited space operation comprises the following steps:
step 1, 1 or a plurality of maintenance personnel needing to enter a limited space, and submitting a working ticket for recording maintenance contents to an operator when the maintenance personnel plan to maintain equipment; an operator receives the working ticket, makes isolation measures of overhaul equipment according to overhaul contents, closes corresponding valves according to the work contents of the working ticket, and cuts off power supply lines of the valves;
step 2, after the operation isolation measures are completed, operators sign working tickets, maintenance staff can start work, at the moment, the operators successively send working cards to each maintenance staff and conduct face recognition through a face recognition system, and face feature data recognized by the operators are input into a controller; if the operation is successful, the controller controls the display to display the word pattern of successful facial recognition, otherwise, the word pattern of unsuccessful facial recognition is displayed, and the maintainer carries out facial recognition again until the display displays the word pattern of successful facial recognition;
when at least one work card is dealt, the controller controls the electric control switch to be switched off;
step 3, each maintainer takes away and carries a work card from the work card accommodating device; the working card storage device transmits the storage condition of the working cards to the controller in real time, so that the controller judges the condition that the working cards are taken away; the controller controls the display to display numbers at positions corresponding to the work cards; when the work card is not removed, the number is 0; when 1 work card is removed, the number is 1, 2 cards are removed, the number is 2, and so on, the number also indicates the number of service personnel working in a limited space;
when any working card is taken away, the controller controls the electric control switch to be switched off;
step 4, after the maintenance personnel finish the maintenance work, returning to the operator to process the maintenance work finish closed work ticket after leaving the limited space, at this time, each maintenance personnel carries out face recognition through the face recognition system, and inputs the face feature data recognized by each maintenance personnel into the controller;
step 5, if the facial feature data input into the controller is matched with the identity information obtained in the step 2, the operation is successful, and the controller controls the display to display a word of 'successful facial recognition'; otherwise, displaying the character of 'unsuccessful' of facial recognition, and carrying out facial recognition again by the maintainer until the character of 'successful' of facial recognition is displayed by the display;
step 6, if the facial feature data input into the controller in step 5 are all matched with the identity information obtained in step 2, indicating that all maintenance staff leave the limited space and return to the safe area, and controlling a display to display a word of 'face recognition is all successful'; if the facial feature data input into the controller are not all matched with the identity information obtained in the step 2, the operation is unsuccessful, and the step 4 is returned;
step 7, all the overhaulers insert the work cards held by the overhaulers into the empty clamping grooves of the work card accommodating device; the working card storage device transmits the storage condition of the working cards to the controller in real time, so that the controller judges the recovery condition of the working cards; when the work card at the corresponding position is not inserted into the reset, the number is not 0, which indicates that people still exist in the limited space; only all the corresponding positions of all the working cards are inserted into reset, and the number is 0;
step 8, when all operations are successful in the step 6, and all the work cards are stored in the work card storage device in the step 7, the controller controls the power supply circuit of each valve to be connected through the electric control switch; otherwise, returning to the step 4;
and 9, opening corresponding valves by operators according to the working contents of the working ticket to restore the limited space system to be put into operation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810961632.2A CN109167290B (en) | 2018-08-22 | 2018-08-22 | Brake error preventing device for preventing misoperation in limited space operation and control method |
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| CN201810961632.2A CN109167290B (en) | 2018-08-22 | 2018-08-22 | Brake error preventing device for preventing misoperation in limited space operation and control method |
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| CN109167290B true CN109167290B (en) | 2023-10-20 |
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| CN209184093U (en) * | 2018-08-22 | 2019-07-30 | 中电投东北能源科技有限公司 | Confined space operation prevents the braking error-proof device of maloperation |
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| CN101976617A (en) * | 2010-09-14 | 2011-02-16 | 华北电网有限公司北京十三陵蓄能电厂 | Method for preventing accidents in mechanical cross operations by utilizing anti-misoperation locking system |
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