What are the problems or hidden dangers that affect safe and stable production in thermal power plants at present, and what measures should be taken?

I. Personnel training and access issues

(a) into the factory education inspection, safety disclosure is a mere formality.

1. Some construction workers have the same handwriting on the education and training papers before starting work, and there is a phenomenon that one person answers multiple papers.

2. The score is not serious, and there are problems with the same answer and different scores.

3. The content of the exam is not targeted. Insulators and welders have the same test papers.

4. The safety disclosure content is not comprehensive. On April 25, 20 15, Fujian longjing made a technical disclosure on site safety for the new recruits of 15, but there were no fire prevention and insufficient lighting.

5. The effect of safety education and training needs to be improved. The question type of Class Three education examination is not rigorous enough, and there are cases where a paragraph is arbitrarily intercepted from the safety regulations as a test question, taken out of context and deviated from the true meaning of the safety regulations.

6. The person in charge of the work has no division of labor and type on the test paper, only a piece of general paper.

7. There is a phenomenon of substituting for exams. For example, there are three kinds of handwriting in Tamia Liu's examination paper, and the examiner's name was changed from Hu Shoufu to Tamia Liu.

8. The examination papers are not serious, and the answers are the same and the scores are different; The list of personnel provided is 57 welders, and only 45 people are on record.

9, factory safety education exam marking is not serious, no mistakes, the deduction standard is not uniform, such as according to the standard should be deducted 2 points, but on the surface deducted 3 points; Second, the contractor does not grade the safety education exam. For example, Tian Kai Environmental Protection did not grade the safety test paper of Henan Second Construction Project.

10. Spot-check the safety training of boiler workers in the outsourced project department, with 90 points in the safety training exam. However, three of the four questions were not tortured on the spot, and the exam was not strict or serious.

1 1. The contents of the safety examination for coal rakers are not targeted, and the possible safety hazards of coal raking are not tested, all of which are general safety examination questions. Suggestion: The content of the entrance examination should be combined with the risk points of the work content, and there should be safety content for the project itself.

(2) The qualification examination is not strict.

1, the qualification examination of special operators is a mere formality, and the welding certificate of welder He XX has not been examined within the time limit;

2, scaffolder Zhang XX special operation certificate can't see the review date.

3. Spot check the renovation of the production office building. An operator has no safety education, no safety disclosure, no production access, and there are loopholes in personnel access management.

4. Check the relevant information of the scaffold erection unit "Xiangtan Anticorrosion Company", and the results of the safety education and training examination of the three outsourced construction workers are all 85 points, and they did not make up the examination as required; A scaffolder's special operation certificate expired on June 3rd and was not approved.

5. The operation certificates of some special operators have passed the review period.

6, the contractor qualification review is lax. The safety supervisor has no safety qualification certificate, and the qualification certificate he holds is "building construction engineering and power engineering"; Supervisors over 65 years old; The age of the supervisor's qualification certificate does not match the ID card. The qualification certificate is 54 years and the identity card is 52 years.

7. The safety risk of the anti-corrosion reinforcement project of11coal conveying trestle stopped greatly. The contractor has no special scaffolding contracting qualification, which is a serious violation of relevant laws and regulations and belongs to the project outside the scope of illegal contracting qualification. Party A also has the problem of illegal contracting.

8. Spot-check welder's special operation certificate (copy) during operation, which was not provided on site.

9. No quality report was provided for the concrete pouring construction of the first floor roof of the civil main project.

10. The project manager has no training certificate for safety management personnel.

1 1. After checking the physical examination reports of the personnel of the coal exploration outsourcing team, it was found that some personnel's physical examination forms had no photos and blood pressure values, and they were not strictly inspected when they entered the factory. Suggestion: standardize the examination procedure of the physical examination form, make up the blood pressure test for those who have no blood pressure value in the physical examination form, and record it in the physical examination report.

(3) There are loopholes in the access protection facilities.

1. The safety isolation measures in the construction area are not perfect. If the baffle of the isolation fence in the ultra-low emission construction area is damaged or cracked, people will enter and leave the construction area from the crack;

2. The door of the ultra-low emission construction site at 0 m of the boiler is open, and personnel can enter and exit at will.

3. The operation area of environmental protection transformation is not effectively isolated, and there are multiple entrances at the site, so the personnel entering the site are not effectively controlled.

4. The transformation work area is not effectively isolated, and there are many entrances in the hard isolation on site, which violates the requirement of "the site is completely closed, leaving only one entrance" in the special management activity plan of the outsourcing project of the group company.

5. The closed measures at the conversion site are not well isolated, and there are multiple exits.

6. There are loopholes in the hard isolation measures at the production site. The isolation door of desulfurization No.6 circulating pump house entering the production area was not closed, and no personnel were on duty, so personnel could freely enter and leave.

7, the construction area isolation is not complete, there are multiple entrances and exits, personnel in and out at will, guarded by special personnel, in and out of the register in name only, in violation of the group company environmental protection transformation site management regulations.

8. The hard isolation on the construction site is not complete, leaving a back door for the cleaning staff to enter and leave, and the safety measures are not in place.

The doors of 9.220kV GIS room, high and low voltage distribution room, communication room and other production sites are not closed and locked, and the key management of doors and cabinets is not in place, which seriously violates safety regulations.

10, emergency escape is blocked. As the only escape route in the construction area, the ladder of the absorption tower is blocked by the hoist installed in the middle section because of the fixed pipeline.

1 1, 1 The railings of the ash storage yard are not locked. There is a risk that irrelevant personnel will mistakenly enter.

The above problems are mainly due to the fact that the construction site is not fully enclosed, and personnel can enter and leave at will. At present, the factory is about to enter the installation stage, and there are more and more opportunities for various regions to enter and exit and cross up and down. Therefore, the entry and exit link between the border fence and the entrance of the main area is the focus of later control.

(d) Access links were not strictly controlled.

1. The registration of personnel entering and leaving the reconstruction site is not standardized. When the inspection team entered the site for inspection, the person in charge of registration was absent, and only one construction worker performed the registration procedures.

2. The construction personnel have poor safety awareness. It was found that all the construction workers were evacuated from the construction site after the on-site inspection by the inspection team, which was suspected of evading the inspection by the group company.

3. There was a loophole in the management of the guard, and the inspection team directly entered the production area of Shuanglongtan Hydropower Station without being asked.

4. I think the construction personnel have poor safety awareness. It was found that the inspection team inspected the site and all the construction workers evacuated from the site, trying to cover up the hidden dangers on the site.

Second, the management of special equipment is not in place.

(A) the lifting operation management is not standardized

No. 1 and No.3 hoists near the absorption tower only have daily inspection records, and there is no acceptance procedure. It is found that non-rigger is carrying out hoisting operation.

2. No one at the scene directs the lifting of heavy objects, which violates the regulation that the lifting operation should be directed by special personnel, and no one is allowed to work under heavy objects.

(B) the use of gas cylinders is not standardized

1, the use of cylinders is not standardized, and the acetylene cylinders used in the production site generally have problems such as fading, incomplete retainer and no inspection label.

No.2.4 boiler maintenance site has no fixed anti-dumping measures for gas cylinders, which does not meet the regulations on the use and management of pressure gas cylinders.

3. The glass of acetylene cylinder pressure gauge in use is broken and there is no calibration label.

Cylinder skirt and cylinder head are incomplete.

4. The use of gas cylinders on site is not standardized. The gas cylinder is fixed with iron wire, the hose is bound with iron wire, and the pressure gauge has no certificate.

5. The use of gas cylinders and gas belts does not meet the latest national standard 20 16, and the color of gas cylinders is unclear due to external corrosion, and there is no gas name identification; The color of gas belt is not used correctly, and some gas belts are mixed; The gas belt is put casually, and some gas belts are aging; Unsafe events can easily lead to gas use errors.

6. On the steam turbine maintenance platform, more than 2 flats (up to 7 bottles) are stored in many places; The fixing of some gas cylinders is not standardized, and no anti-dumping measures have been taken; The distance between two gas cylinders is less than 5 meters.

7. There are many acetylene bottles stored centrally on the construction site. It is recommended to store it in a safe place outside the construction site.

Third, the use of electrical and safety instruments is not standardized.

(1) safety instruments

1. The seat belt is unmarked, and the used seat belt is obviously damaged. For example, there is no inspection mark on the safety belt worn by workers in the ultra-low emission reconstruction site, and there is a phenomenon of separation.

2. There is a phenomenon of not wearing work clothes and helmets at the production site.

3. The network attendant didn't wear insulated shoes.

4. The ledger of safety instruments used in environmental protection transformation is inconsistent with the real thing, and the ledger of safety belt and helmet inspection, inspection and scrapping has not been established.

5. The zipper head of the hoist used on site has no anti-falling device, and the safety belt is thrown at the scene at will.

6. There are loopholes in the management of safety instruments. There are untested seat belts and power tools on site; The instrument list records 34 electric welding machines, and the inspection report is 4 1.

(2) Power tools and instruments

1 and the inspection label of electric tools in ultra-low launch site is damaged more; Hand drill without logo; The staff was not at the scene, and the electric mixer was not powered off.

2. The electric welding machine used on site failed to install grounding wire as required; The rotating part of the mixer has no protective cover.

3. Some electrical instruments have no inspection certificate; Some seat belts are damaged and continue to be used; The handle line of electric welding machine is exposed, and the connection is not standardized; The chain is mixed, and the anti-unhooking device is damaged more.

4.4 There is no qualified mark on the corner mill at the overhaul site of No.4 boiler. The transmission part of the grinder used in the office building reconstruction site has no protective cover.

5. The rain outsourcing construction of electric welding machine in ammonia area is not standardized, and the power lines are mixed.

Chaos, two chain hooks of lifting equipment have no stops, and the inspection certificate of cable shaft has expired.

6.6 The grounding wire of the welding machine at the maintenance site of the boiler coal mill is directly connected to the heating pipe, which does not meet the safety requirements.

Fourth, the problems in fire control work.

(1) Dangerous goods are piled up in a centralized way, and fire extinguishers are insufficient.

1. The storage of acetylene cylinders in the construction site area does not meet the requirements. For example, a large number of acetylene cylinders are stored in the ultra-low emission construction site, and the configured fire-fighting equipment has not been verified by fire protection; No fire-fighting equipment is set at the hot work site.

2. The management of fire-fighting equipment in ultra-low emission construction site is not in place. If there is no inspection mark on the configured fire extinguisher; No fire extinguishers were placed at the high-temperature operation site.

3. Version 20 15 of Typical Fire Control Regulations for Electric Power Equipment has been published, but the production site and safety management personnel have not yet mastered the relevant contents, and the new standard has not been implemented for the effective time of hot work tickets.

4, hot work did not take effective fire prevention measures, not equipped with enough fire equipment; There is no special person to check the fire water system every day.

Verb (abbreviation of verb) Problems in aerial work

(A) scaffolding is not standardized

1. There are many scaffolding whose springboard ends are not tied and fixed as stipulated by the state, so there is a risk of people stepping on it by mistake and falling from a height.

2. There is a single jump, the operation surface is not covered, and there is no safety protection facility at the boundary.

3. There are many sundries on the scaffold, and there is a risk of falling objects.

4. Some dismantled scaffolds are incomplete in structure and cannot be used, and there is no effective prompt and no sign prohibiting the use, which is prone to the risk of people boarding unqualified scaffolding by mistake.

(2) The behavior of aerial workers is not standardized.

1. There are 1 people who do not wear seat belts when working at heights.

2. The aerial workers at the top of limestone slurry tank of165MW unit and the ultra-low emission reconstruction construction site did not wear safety belts; Two people work directly on the scaffold pole.

3. Two safety belts with low hanging and high use were found at the scene.

The irregular operation behavior of personnel is the most difficult to control, and it is also the main reason for unsafe incidents. The first measures taken are safety education in the purchase process and safety disclosure before construction. Every day, the pre-shift meeting should emphasize the standardization of operation behavior. Let everyone know what to do first, and then strengthen monitoring in the process. If you find that you are punished together, you will never be soft and give everyone a signal. These unsafe behaviors are definitely not allowed here and must be taken seriously ideologically.

(C) Safety protection measures are not in place

1. Safety protection measures are not in place. Check that there is no isolation belt under MGGH at the aerial work site, and set warning signs such as "No Entry", "Be careful of falling objects" and "No Entry for non-working personnel".

2. The safety protection facilities are not complete, and the safety belt can't be hung when walking at high altitude. Workers with anticorrosive paint inside the desulfurization tower can't wear safety belts when walking in the tower, and there are many paint buckets piled up on the scaffolding, blocking the passage.

Special plans should be made for aerial work and crossover operation, which should be strictly implemented in the construction process. There is indeed a hanging point problem when working high above the ground without wearing a seat belt. When this kind of problem occurs, the parties often feel that there is no way to hang it and there is no place to hang it. If they don't hang up, it should not be illegal. In fact, you can also take protective measures such as safety ropes and safety nets. Never work without taking safety measures.

Five, the construction of electricity problems

(A) temporary electricity management is not standardized

1, the temporary power box has no acceptance record, the wiring is chaotic, the jumper leakage protection is not reliably grounded, and the field workers are not sure whether the power supply is available and blindly use it.

2. Anti-electric shock measures in ultra-low emission construction site are not perfect. If there is no sign to overhaul the power box, the door is not closed properly; The thread exposed at the scene was not bandaged.

3. The connection of ultra-low emission welding machine, temporary power box and grounding wire on the construction site is not standardized. For example, the scaffold steel pipe is used as the conductor of the grounding wire, and the grounding wire of the power box is damaged.

4. Many ends of the high-voltage cable, low-voltage cable and control cable of the dismantled equipment on site are unprotected. There are wires, tools and other sundries on the cable bridge of underground belt layer of coal yard dumper; The cable binding is not standardized, and the cables are partially stacked; The cable fireproof paint on the bridge frame is not sprayed thoroughly, and the fireproof plug and fireproof partition are aging and damaged.

5. The connection wires of electric tools and instruments in the ultra-low emission construction site are not standardized. For example, the insulation sheath of the power cord used by power tools is damaged; The extension power cord is not placed overhead at the passage, and the power cord placed on the ground is not provided with safety protection.

6. A cable coil leakage protector failed at the environmental protection reconstruction operation site. The welding wire of No.4 furnace 13m platform and the power cord of angle grinder are scattered at the passage. Zhengzhou Lida Company installed a slag scraper in No.4 boiler, and the lighting power supply was 220V V.

Six, safety protection measures are not in place

(A) the use of safety warning signs is not standardized

1. Electrical warning signs and signs in the auxiliary power distribution room are placed at will.

2. The "maintenance unit area" and "operation unit area" are hung on the isolation railings of the maintenance unit and the operation unit in the same direction.

3.6 Boiler's environmental protection transformation was completed, and the unit was put into operation. However, there are a lot of scaffolding and sundries in the slurry circulating pump house and other sites, and the necessary warning line and isolation railing are not set in the operation equipment area, so the transformation site and production area are not clearly divided.

4. After the work, the sign "Work here" was not taken back.

5.5 Unit 6kV power distribution room maintenance equipment and operation equipment did not hang warning red curtain as required, and did not carry out hard isolation.

6. There are only acid danger signs in the chemical acid-base tank area, but no alkali danger signs, and there is no yellow warning line around the acid-base tank.

(2) problems such as protective cover and fence.

1 and No.3 boilers have two holes with a depth of more than 3 meters beside the induced draft fan, and no warning fence has been set. The high-voltage cables of the motor removed next to them are exposed and placed on the ground at will.

2. On-site foundation pit operation, with a depth of more than 2 meters and no protective fence; There are no preventive measures to prevent foundation pit collapse; There is crossover operation in the foundation pit on site, and isolation measures are not taken. The construction of foundation pit caused the scaffolding poles around to lose support, and no reinforcement measures were taken.

Seven, lack of civilized construction.

(1) stacking sundries at will

1, sundries on the high platform in the ultra-low emission construction area are not cleaned up, which may easily cause falling objects at high altitude; After the construction of high platform, there are many sundries such as iron sheet, metal scrap, heat preservation and iron wire, which are easy to fall through the grille.

2.2, 3, 5 and 6 floors were cluttered with sundries, and the height of sundries such as colored steel tiles and thermal insulation cotton was higher than the railing, and no protective measures were taken for the border and the airport.

3. Cigarette butts were found outside the fixed smoking area on the construction site.

The construction unit is required to centrally plan the garbage dump site according to the site general plan, and take measures to classify and manage the garbage.

Eight, the security agreement does not meet the requirements.

1. Datang Environment, Liaoning Huayu, Longjing Environmental Protection, Shaanxi Hongtaiyuan and other contractors have no multi-party crossover operation safety agreement with the supervisor.

2. Datang Environment signed a security agreement with Liaoning Huayu Electric Power Engineering Company, and Zhao, the signatory of Datang Environment, did not have a "legal person power of attorney".

3. The contents of the two agreements are completely consistent. The construction unit and the supervision company should sign an agreement on their respective responsibilities, obligations, legal responsibilities and safety management responsibilities according to the specific nature of the work.

4. The exemption clauses of the two guarantee agreements are invalid. If the general terms of the signed safety agreement (1 1) stipulate that "in accordance with the electric power construction investigation regulations and the four-no-pass principle, if Party B violates the safety work regulations and causes personal injury and equipment damage, Party B shall bear all the responsibilities". According to Article 53 of the Contract Law, the exemption clause that causes personal injury to the other party is invalid.

Nine. Problems in confined space management

1, limited space management is not in place. For example, in the ultra-low emission reconstruction site, the manhole door of the exhaust fan was not temporarily blocked when it was opened, and there was no staff on the site; There is a big opening at the bottom of the chimney 1 that is not blocked; Manhole doors on both sides above the ash hopper at the bottom of No.2 boiler are open, the construction operation has been suspended, no personnel have entered the registration board, and no temporary plugging has been carried out.

2.2 When the boiler was overhauled, all manhole doors above the ash hopper were opened, and relevant measures were not implemented according to the requirements of limited space management.

3. 1 Boiler maintenance site was provided with multiple manholes, and there was no personnel access registration card at the site. Temporary sealing measures were not taken as required when the boiler was stopped. At the ultra-low emission reconstruction site, the manhole door at the bottom of the desulfurization tower was not set with access registration board.

4.4 When the boiler was overhauled, the manhole door on the 7th floor was unattended, and no measures were taken to prevent it from entering by mistake, which did not meet the safety management regulations for limited space operation. (The same type of question as Inspector Nanjing)

The manhole doors of No.5 boiler and No.5 coal mill were not temporarily closed when no one was working, which did not meet the safety management regulations for limited space operation.

X. Problems in "Three Measures and Two Cases"

1, No.4 flue scaffolding and flue demolition construction scheme ***9 pages, scaffolding scheme only 7 lines, the construction personnel can't carry out the construction according to the scheme. After review by the construction unit, supervision company and construction unit, the opinions are "meeting the requirements and strictly implementing the plan".

2. The hazard analysis and control measures of "three measures and two cases" in confined space operation are not comprehensive. For example, the Accident Treatment Plan for No.2 Condenser Confined Space lacks the analysis and treatment plan for the dangerous points of personal electric shock; Among the safety measures of "overhaul of ash hopper of economizer of No.2 boiler", there are many parts about coking and furnace collapse.

3. The "Approver of Three Measures and Two Cases" of the scaffold erection unit is not in the qualification documents provided by Party B, so it is impossible to prove whether this person is qualified to approve the "Three Measures and Two Cases".

XI。 Problems with safety management procedures

1, the owner and supervisor failed to conduct on-site monitoring. For example, there is no supervisor for polishing the upper part of the absorption tower, and there is no on-site inspection record of the supervisor.

2. The safety supervisor has no daily inspection records and fails to organize weekly inspections as required. Since the project started, there is only one inspection record (1June 3).

3. There are many incidents of aerial work without wearing a seat belt in the on-site assessment records, which still occur frequently, and there is a great risk of personal injury, which needs to be highly valued.

4. The safety supervision department has no special safety net meeting record book.

5. On-site supervisors drink alcohol on duty.

6. No quality report was provided for the concrete pouring construction of the first floor roof of the civil main project. Slump test was not conducted before commercial concrete pouring. The on-site personnel of the on-site supervision unit interpreted the above problems as the slump test of the last truck of commercial concrete and obtained the quality report of commercial concrete, which seriously violated the principle of quality control in advance.

7. No major operation management measures have been found on site, so the management of major operations should be strengthened, and the procedures for signing and approving major operation projects and the authorities at all levels should be clarified.

8. The supervision unit has no monitoring and management system for major hazard sources, and Hebei Power Construction has no commissioning work ticket management system and safety file management system. Sort out the system list according to the Management Regulations on Safety Inspection and Evaluation of Electric Power Engineering of the Group Company, improve the corresponding management systems and methods of the company, supervision unit and construction unit, improve the necessary systems and standardize management.

This inspection mainly exposed the shortcomings of supervision work, so the supervision unit should focus on learning to prevent the same problem from happening again. For the problems repeatedly found in safety inspection, it is necessary to analyze the reasons behind them and take measures to prevent them from happening again.

Twelve. emergency management

1. Check whether the emergency material storage cabinet in the ammonia area on site is equipped with an emergency hammer for breaking glass in an emergency.

2. Lack of understanding and management of the dangers existing in the ammonia tank farm, low sensitivity to the explosion accident of ammonia tanks in enterprises outside the system, poor emergency treatment process in the ammonia tank farm, and lack of special emergency treatment plan for explosion and leakage of ammonia tanks.

3. CPR is not practiced with dummy. Suggestion: Buy a new CPR dummy in time so that everyone can pass the test.

4. The heating emergency plan does not involve the disposal plan when it conflicts with environmental protection indicators. Suggestions: The heating emergency plan should enhance operability, improve various technical measures of steam supply interruption, consider the measures to be taken after the conflict between heating and environmental protection, standardize how to issue heating events uniformly, and coordinate local governments to deal with public opinion during heating period.

5. The management of heating emergency plan is chaotic, and the operators of production information system can't find it. There are some problems in the heating emergency plan, such as the wrong number of Datang International. The emergency plan for heating does not involve the conflict between heating, safety and environmental protection, and there is no emergency plan for loading and unloading frozen coal. Suggestion: release the viewing authority of the production information system to facilitate the operators to view and learn; Revise emergency plans for various problems as soon as possible; According to the existing measures for unloading frozen coal, formulate the emergency plan for receiving and unloading frozen coal; In the heating emergency plan, the operation in case of conflict between heating, safety and environmental protection should be made clear.

6. The external heating emergency plan is a copy of the government heating emergency plan; In the plan, heating accidents are divided into two categories, the early warning level is divided into four levels, and the emergency response level is divided into three levels, and the contents cannot correspond; The warning level conditions are vague and not specific, such as "the situation is particularly serious", and a red warning is declared. What is "particularly serious" is not described.

7. During the inspection, no special measures were found for the whole plant to prevent cold and freeze in winter, no dispatching measures for automobile coal unloading in bad weather, and no special safety guarantee measures for outdoor operation in bad weather in desulfurization and ultra-low emission reconstruction project.

8. There are defects and errors in the emergency plan for freezing rain and snow disasters. ① The division of labor of the "emergency rescue working group" in the emergency plan is not clear, and it is not carried out in combination with the daily division of labor of the actual department. For example, write the departments without relevant responsibilities into the emergency working group responsible for the comprehensive economic department. ② The responsibility of "risk monitoring" in the emergency plan is unclear, with the responsibility of the Comprehensive Economic Department in front and the responsibility of the Equipment Department behind. (3) The contact information of the emergency rescue working group in this plan only includes the fixed telephone in the factory, and there is no mobile phone contact information. In case of emergency, it is not guaranteed to inform the relevant responsible person in time.

9. In the detailed rules for the implementation of emergency management compiled by enterprises, there is a phenomenon that the interface of departmental responsibilities is unclear. For example, it is stipulated that the responsibilities of the safety supervision department and the power generation department are "responsible for the emergency handling, investigation and handling of power grid accidents, equipment accidents and personal accidents"; Unable to define the job responsibility entity.

10. The concepts of "on-site disposal scheme" and "on-site emergency disposal card" are vague. The "on-site disposal plan" is an integral part of the emergency plan system and belongs to the emergency plan; The on-site emergency response card belongs to the emergency response point of a specific post.

1 1. The reporting process of Emergency Plan for External Heating Interruption is not standardized, and there is no content to report to the production dispatching center of the group company.

12, the release procedure of external heating interruption emergency plan is not standardized, and the contents of the plan provided by the operation centralized control room are inconsistent with those provided by the management department.

13. The Emergency Plan for Sudden Environmental Events has been revised for three years. Public opinion monitoring and countermeasures in information release and post-disposal stage should be added.

XIII. Traffic Safety Work

1. Ask the doorman of Xiahuayuan Power Plant. It is not clear about the style of supervision certificate of group companies. The expired risk assessment expert certificate can still be used, and the safety management is not in place. Suggestion: the relevant person in charge of the security team should be suspended for examination, and then take up the post after study, so as to strengthen the training of the security team. The relevant requirements of the group and the international community must be implemented.

Fourteen Safety day activities

1, safety activity day study, team members spoke simply, did not express the lessons that should be learned from the accident and the measures taken, and did not record all members. /kloc-only two of the 0/4 players set a record. Suggestion: all participants should speak and learn, and make a good record of the key contents; Combined with the first anniversary of the "1 1. 17" accident, special warning education activities were carried out.

Fifteen. operation management

1. The transmission test of equipment, logic and protection before the start of the unit was not recorded in detail, and the lead department was not the power generation department, which brought hidden dangers to the safe operation after the start. Suggestion: The startup of units with long standby time should be based on the standards after overhaul, and the power generation department should organize various protections, logic drives, electric door drives, important water level indications, etc. Carry out actual verification work. It should be clear that the power generation department is the lead department, and the thermal and protection departments are the coordination departments. All departments shall sign and confirm the transmission records and keep them.

2. The shift supervisor has no right to approve the use of the unlocking key and apply for returning the main protection of the unit, so the relevant approval regulations should be strictly implemented. Suggestion: The management regulations on switching-in and switching-out of various protections should conform to the actual situation of Qian 'an thermal power production, be revised and strictly implemented.

3. The management of equipment switch driver acceptance card is not standardized, and it is not archived after acceptance. Suggestion: Strengthen the management of equipment transmission acceptance.

4, defect management should be further strengthened, the monthly analysis is not in-depth, statistics, no analysis, no regular defect analysis meeting to formulate specific measures to eliminate defects, there should be countermeasures for the defects that have not been eliminated. The input defects are not serious, such as "No.2 steam pump recirculation electric door of Unit 2", and the equipment location is "1 Unit 2". The major abnormal problem of hydrogen leakage of No.2 generator is not reflected in the equipment defects. Suggestion: Strengthen defect management, timely and accurately enter equipment defects, carefully analyze each defect and formulate elimination measures.

5. Optical board plays an important role in alarm. The hard optical board in the main control room also has 12 optical board. Suggestion: The work must be done carefully, and measures such as setting and modifying the fixed value and shielding the state should be taken to realize the "no light word" operation.

6. There are many light plates on the standby unit, which affects the monitoring of operating equipment and makes it difficult for operators to judge and deal with accidents at the first time. Suggestion: Strengthen the "light board" management of standby units.

7. The urea eye washer has no anti-freezing measures. Suggestion: Anti-freezing measures should be added to the eye washer to avoid abnormal use in winter.

8. The technical monitoring and management of the factory are relatively good. The monthly meeting will be organized and analyzed by the chief engineer, with meeting minutes. The summary format should be further standardized, and 14 monitoring summary analysis can be used as an attachment. Suggestion: Improve as required.

On-line instruments of hydrogen purity of No.9 and No.2 generators show that it is 99.4%. According to experience, the hydrogen purity of generators is not that high. The on-line device for hydrogen leakage detection shows a negative value, which is abnormal, and there may be a problem with the on-line device.

10. If the safety measures in the working ticket need to start and stop the coal mill and coal feeder, some have already filled in the corresponding operation ticket number in the remarks column, and some have not.

1 1. After inspection, it is found that the workflow of unit interlock protection switching needs to be standardized, and some "switching application forms" lack the signatures of applicants and approvers.

12. The maintenance department boiler team's regular work account record is not perfect, if there is no relevant record of bearing regular refueling. Boiler team 165438+ 10 * * has 12 defects. In the monthly defect analysis, only three defects are analyzed, and the monthly defect analysis needs to be improved.

13. There was no personnel entry and exit registration system for the cable interlayer under the centralized control room, and regular inspection and cleaning work was not carried out as required.

14. The USB ports of DCS host and operation station in the production site are not sealed, and the safety protection requirements of power monitoring system are not in place.