A, DCS system accident special emergency plan
1. General
1. 1 Purpose:
In order to ensure the safe, continuous and stable operation of DCS system, prevent unexpected accidents, actively respond to unexpected accidents, organize accident treatment efficiently and orderly, minimize accident treatment time, ensure the safety of operators and equipment, and reduce property losses, this emergency plan is formulated according to the requirements and characteristics of safe operation of DCS system.
1.2 compilation basis:
Overall Emergency Plan of New Energy Branch of Qinghai Yellow River Hydropower Company.
1.3 scope of application of the plan:
DCS system of the whole plant.
1.4 accident handling principles:
A. Deal with accidents quickly, effectively and orderly, implement the graded responsibility system for emergency work according to the requirements of the plan, carry out their duties, cooperate closely and cooperate with each other.
B. After the accident, the operators should take measures calmly, calmly and quickly to ensure the orderly and decisive handling of DCS system accidents.
C. anyone who is not involved in handling the accident is prohibited from entering the place where the accident occurred. During the accident, only the personnel involved in handling the accident and the competent leaders are allowed to enter and stay in the accident site or the main control room.
2. Emergency report:
A. Basic principles of emergency reporting: fast and accurate.
B. Report content: After the accident, the operator in the control room immediately reports the time and place of the accident to the monitor, dispatcher, DCS engineer and superior leader; The extent and scope of the incident; A brief account of the event.
3. Preventive measures:
A. what should A.DCS maintenance personnel insist on? Prevention first, prevention in advance? The principle of strengthening the daily inspection and maintenance of DCS system equipment.
B.DCS operators shall strictly abide by various rules and regulations and operate in strict accordance with operating procedures.
C.DCS operators are familiar with system performance and structure, can operate skillfully, and hold relevant certificates.
4. The scene accident treatment:
When an accident occurs, the operator should report to the monitor, dispatcher, DCS engineer and branch leaders in time, start the emergency plan and take measures to deal with it to prevent the accident from expanding.
5. The phenomenon and treatment of auxiliary power interruption:
(1) auxiliary power interruption phenomenon:
A.DCS system cabinet has only one power supply running.
B. When the field equipment stops, the central control can't control it.
C.c.UPS power supply is converted from mains supply to battery supply mode.
D. the on-site emergency light is turned on.
(2) Confirm that the interruption of auxiliary power should:
A. Open the cabinet door of the control station, and observe whether the board card works normally and whether there is a fault display (the fault light is on); B, observing whether there is a fault from the fault diagnosis monitored by each operating station in real time;
(3) When the electrical notification is put into the security power supply,
A. Conduct a comprehensive inspection of the DCS system cabinet and UPS power supply (handle problems in time when found), and enter the real-time monitoring screen to observe whether the system is running normally.
B conduct a comprehensive inspection of the real-time monitoring screen of the system. If there is no problem, notify the relevant personnel that the system is back to normal and can run normally.
(4) When it is confirmed that the security power supply cannot be put into operation within one hour, the monitor and DCS engineer shall be informed for processing. When it is confirmed that the power supply cannot be restored in a short time and the UPS power supply cannot keep running, the DCS power supply can be cut off on the premise of ensuring the safety of field equipment.
DCS system power-off operation:
A. After each operating station exits the real-time monitoring and operating system in turn, turn off the power supply of the industrial computer and the display of the operating station;
B. Turn off the power supply of card cabinet, safety barrier cabinet, relay cabinet, network cabinet and power cabinet in turn; C. Turn off the power switch of the uninterruptible power supply;
D. turn off the main power switch.
(5) After the normal power transmission is resumed, the DCS system shall be comprehensively inspected and power transmission shall be started.
A. turn on the main power switch;
B. turn on the uninterruptible power supply (UPS) power switch;
C, sequentially closing the power cabinet, the board cabinet, the safety barrier cabinet, the relay cabinet and the network cabinet;
D. Turn on the power of each operation station and display, and then follow the normal operation steps.
6. The phenomenon of console crash and its treatment
(1) The phenomenon that the operating station crashes.
For a long time, the data of the real-time monitoring screen of the operating station is not refreshed, so it is impossible to control the operation of the system and equipment, and there is no response when pressing various buttons, and other operating stations are monitoring normally.
(2) Confirm that the operating station crashes:
A. report to the monitor and DCS engineer and get permission? Monitor computer restart? After the command, the related operation monitoring operation of the computer should be changed to other computers until the computer regains control. B restart is operated by the central control operator, monitored by the monitor, and the computer is forced to restart. With the operator as the administrator, the DCS real-time monitoring system is started without entering the password. If there is any problem with the real-time monitoring screen, notify the DCS engineer to handle it in time.
C. If the central control cannot be restored quickly, relevant control shall be transferred to the site for local control. And notify the relevant professionals for handling.
D. After handling the fault, the operator shall report to the DCS engineer and superior leaders in time, and make detailed records: the name of the person on duty to handle the fault, the confirmation signature of the shift supervisor, the recording time, the fault location, the fault start time, the fault phenomenon, the difference between relevant parameters and normal conditions, etc. , must be recorded clearly.
(3) Precautions:
A. Since restarting the computer will affect the operation monitoring, you must be cautious and the restart process must be completed quickly. B. During the startup process, the computer shall not run any non-monitoring content.
(Note: The judgment of the accident should be accurate, rapid, decisive and correct)
7. Emergency termination and post-treatment:
A. report the cause of the accident, responsible person and handling opinions;
B. summarize the experience and lessons of accident handling;
C analyze the cause of the accident and formulate preventive measures to prevent similar accidents from happening again. Insist on accident investigation? Don't let go of the cause of the accident, the person responsible for the accident and the uneducated employees, the employees whose safety precautions have not been implemented, and the employees who have not been handled by the person responsible for the accident? Four principles, actively cooperate with the superior accident investigation team to carry out on-site accident investigation.
Second, the PLC system accident special emergency plan
1. General
1. 1 Purpose:
In order to ensure the safe, continuous and stable operation of PLC system, prevent unexpected accidents, actively respond to unexpected accidents, organize accident treatment efficiently and orderly, minimize the accident treatment time, ensure the safety of operators and equipment, and reduce property losses, this emergency plan is formulated according to the requirements and characteristics of safe operation of PLC system.
1.2 compilation basis:
Overall Emergency Plan of New Energy Branch of Qinghai Yellow River Hydropower Company.
1.3 scope of application of the plan:
PLC system of the whole plant.
1.4 accident handling principles:
A. deal with accidents quickly, effectively and orderly. The accident emergency work shall be carried out in a graded responsibility system. According to the requirements of the company's overall planning, they should perform their duties, cooperate closely and cooperate with each other.
B after the accident, the operator should take measures calmly, calmly and quickly to ensure the orderly and decisive handling of the accident by the PLC system.
C during the accident, it is forbidden for anyone who is not involved in handling the accident to enter the scene of the accident, and only those who are involved in handling the accident and the competent leaders are allowed to enter and stay at the scene of the accident.
2. Emergency report:
2. 1 Basic principle of emergency report: fast and accurate.
2.2 Report content: After the accident, the operator in the control room immediately reports the time and place of the accident to the monitor, dispatcher, instrument supervisor and superior leader; The extent and scope of the incident; A brief account of the event.
3. Preventive measures:
3. 1 What should instrument maintenance personnel insist on? Prevention first, prevention in advance? The principle of strengthening the daily inspection and maintenance of PLC system equipment.
3.2 Operators shall strictly abide by various rules and regulations and operate in strict accordance with operating procedures.
3.3 Operators are familiar with the system performance and structure, can operate skillfully and hold relevant certificates.
4. The scene accident treatment:
When an accident occurs, the operator should report to the monitor, dispatcher, instrument supervisor and branch leaders in time, start the emergency plan, and take measures to deal with it to prevent the accident from expanding.
5 accident emergency treatment method:
5. 1 PC communication failure:
5. 1. 1 Whether the redundant controller is operating normally, if the master controller fails and the slave controller is not switched normally, it should immediately report to the relevant leaders, and notify the dispatcher to prepare for emergency stop, and at the same time restart the slave controller manually, and wait for the stop command if the start fails.
5. 1.2 When the controller is normal, quickly check the network connection between the redundant controller and the switch, and between the engineer station and the operator station and the switch: whether the communication connector is damaged, dropped or loose; If it is damaged, it should be replaced immediately or made on site. If it is plugged loosely, the engineer station will check and test the network and resume normal operation.
5.2PLC system card is damaged:
5.2. 1 non-redundant AI\DI\DO card is damaged. First, confirm whether the instrument points on the damaged card participate in interlocking parking. If yes, immediately report to the relevant leaders and inform the dispatcher to prepare for emergency stop. At the same time, insert the spare card into the damaged card position, closely contact the process, and pay attention to the process operation at any time. Whether the check card and all instrument channels work normally after replacing the card.
5.2.2 If the redundant AO card is damaged, first contact the process to switch the control point on the damaged card to local manual control, and then insert the spare card into the damaged card position. If it is not successful, report to the relevant leaders in time and take measures to replace it, waiting for the dispatching order.
5.3UPS power supply is abnormal:
5.3. If1UPS fails, the relevant leaders and dispatchers shall be informed immediately to make preparations for parking during the battery supply period, and the system shall be powered off.
5.3.2 In case of UPS failure and battery failure, immediately notify the dispatcher to stop.
5.3.3 If the power supply of the PLC system is disturbed by the outside world, so that the system cannot operate normally, the grounding condition should be checked first. If the grounding is normal and the interference cannot be eliminated immediately, the relevant leaders should be reported immediately and the dispatcher should be informed to stop the operation.
6. Emergency termination and post-treatment:
6. 1 Report the cause of the accident, responsible person and handling opinions;
6.2 Summarize the experience and lessons of accident treatment;
6.3 Analyze the cause of the accident and formulate preventive measures to prevent similar accidents from happening again. Insist on accident investigation? Don't let go of the cause of the accident, the person responsible for the accident and the uneducated employees, the employees whose safety precautions have not been implemented, and the employees who have not been handled by the person responsible for the accident? Fourth, never let go of the principle and actively cooperate with superiors.
The accident investigation team conducted an on-site accident investigation.
Three. Special emergency plan for radioactive events
1 general rules
1. 1 purpose
In order to effectively deal with radioactive accidents, strengthen the responsibility of emergency handling of radioactive accidents, and control the accident hazards to the maximum extent, this plan is formulated.
1.2 compilation basis
1.2. 1 Overall Emergency Plan of New Energy Branch of Qinghai Yellow River Hydropower Company.
1.2.2 Emergency Response Plan for Radioactive Accidents in New Energy Branch of Qinghai Yellow River Hydropower Company.
1.3 Scope of application
1.3. 1 radioisotope loss;
1.3.2 radioactive isotope shell is damaged, resulting in pollution accident;
1.3.3 personnel were overexposed.
1.4 emergency work principles
1.4. 1 quick report principle;
1.4.2 principle of active rescue;
1.4.3 principle of life first;
1.4.4 principles of scientific rescue, hazard control and accident prevention;
1.4.5 Principles of protecting the site and collecting evidence.
1.5 emergency start conditions
When radioactive isotope loss, pollution accident and over-dose irradiation occur, this plan will be started. 2. The responsibilities of the motor department
2. 1 Immediately after the accident, organize relevant personnel to carry out emergency treatment for radioactive accidents.
2.2 Actively participate in the research, determination and implementation of specific emergency plans for radioactive accidents.
2.3 In case of radioactive material loss accident, closely cooperate with various departments to search quickly and find the lost radioactive material as soon as possible.
2.4 In case of radioactive pollution accident in the workplace, ground and equipment, we should cooperate with all departments to determine the scope and degree of pollution as soon as possible, and take corresponding decontamination measures.
2.5 When personnel are exposed to radiation accidents, the exposure should be quickly estimated by personal dosimeter or other tools and methods.
Exposure dose of personnel.
2.6 Cooperate with various departments to quickly arrange medical treatment and evacuation of exposed personnel, maintain order at the scene, and prevent accidents from expanding and turning into public health incidents.
3 emergency procedures
3. 1 After receiving the accident notice, immediately organize relevant personnel of the motor department to carry out emergency rescue;
3.2 After entering the scene of the accident, obey the unified arrangement of the captain of the emergency rescue team;
3.3 In the process of accident treatment, you must obey the orders of the emergency command center of the branch, and you are not allowed to enter the accident area without authorization.
3.4 Cooperate with the protection inspector to quickly determine the radiation intensity and influence scope of the site, delimit the restricted area, and prevent the harm of external irradiation.
3.5 Cooperate with various departments to rescue the injured and maintain the order at the scene.
3.6 After the accident is handled, organize relevant personnel to discuss, analyze the cause of the accident, draw lessons and take measures to prevent similar accidents from happening again.
4 accident investigation
4. 1 After a major radioactive accident, cooperate with the accident investigation team, the after-treatment team and the production recovery team.
4.2 Summarize the experience and lessons of accident handling.
4.3 Cooperate with the emergency command center of the Branch to compile and report the accident report, and at the same time assist the health administrative department and the public security department in accident investigation, handling and other related matters.
Fourth, others.
4. 1 emergency rescue organization chart
chief engineer
Security personnel
Instrument maintenance task
Instrument repairman
Emergency personnel
4.2 Emergency contact telephone number
postal service
Name Office Telephone Company Dispatching Telephone 5233, 5234 Branch General Control Room 5276 Hospital 120
Chief Engineer Li XX5810xxxxxxxxx
Instrument section chief Liu Xx5282 XXXXXXXXXXX CVD instrument repair task Zhu X5282 XXXXXXXXX instrument repair task in recovery area and instrument repair task in rectification area Talking about instrument repair task in Kangdian Power Center, Yan X5282 XXXXXXXXX instrument repair task in finishing area, Zhu X5282 XXXXXXXXX.
4.3 List of emergency facilities and emergency materials
3m gas mask: 1 1.
Acid alkali resistant gloves: 1 1 double