Summary of maintenance work in the first half of the year

Summary of the work of the first half of the year 1

20xx is a critical year for our company to continue to improve management, continue to improve profitability, and ensure the advancement of the third phase of development based on the results achieved last year. . Over the past year, under the leadership of the company's Party Committee and Production Technology Department, the Maintenance Department has fully implemented the spirit of the group company, Guangxi Branch and the company's work conference, deeply practiced the scientific outlook on development, and unswervingly adhered to the company's "transforming enterprises, tapping potential, and improving The central mission of "quality, creating first-class" and the work focus of creating a modern enterprise that is "intrinsically safe, intrinsically economical, advanced and efficient, green and harmonious", combined with "creating the first and striving for excellence", "one branch, one feature, one party member, one flag" activities, continuously strengthen equipment management, technical management, and internal cost control, unswervingly follow the work goals and performance tasks set at the beginning of the year, closely focus on the company's safety production goals in 20xx, and continuously strengthen equipment management in stages and steps, and transform employees concepts, constantly improve the sensitivity of accepting tasks and the timeliness of handling defects, especially the timeliness of handling defects that affect unit load and economic indicators, constantly improve economic awareness, continuously improve safety production awareness and labor skills, and gradually improve and standardize production management level, build a new concept of equipment management, and lay a solid foundation for the safe and reliable operation of equipment.

1. Review of the work in the first half of 20xx

20xx is a year when the maintenance department accepts challenges and faces difficulties. It is also a year when all employees of the department change their concepts and withstand severe tests. Under the correct leadership of the company leaders and the production technology department, we conscientiously implemented the overall arrangements of the company's second and fourth workers' congresses and the 20xx work conference, and actively carried out work around the theme of "safety, environmental protection, efficiency, development, and harmony", Continue to study and practice the Scientific Outlook on Development in depth, and with the "Being First and Strive for Excellence" activity as the driving force, focusing on the central task of "only by being profitable can there be development, by ensuring equipment can we fight for equipment, and by fighting for equipment can we seize power", we vigorously carry out "ensure safety, The director in charge will personally investigate hidden dangers; change concepts, build culture, and have unified goals regardless of division; compete for electricity, reduce consumption, and on-the-job inspections must be carried out." We ensured the safe operation of the units by conducting hidden danger inspections and on-site supervision; we strengthened on-the-job inspections to ensure equipment health and energy; we prioritized and worked overtime continuously to secure equipment and ensure economic indicators; we actively responded to the severe operating situation and overcame the talent gap and personnel shortage in the maintenance department. Despite the difficult situation, the unit achieved stable and full power generation for a long period of time, and the annual power generation reached a record high. It won the tough battle of "shut down the first phase, make profits in the second phase, and maintain the Asian Games", and basically completed various indicators and tasks assigned by the company. Safety production has maintained a long-term operation record, and management level and efficiency awareness have been significantly enhanced.

2. Completion of main work

1. Refine safety management, eliminate human responsibilities, and achieve long-term operation of safe production. Safety production is always the basis of all work.

The Maintenance Department closely combines the "Maintaining Safe Long-Cycle Power Generation" activities, New Year's Day system safety activities, safety production series activities, spring and autumn safety inspections, peak summer, cold and frost protection, etc., to focus on inspections Rectify existing problems in power plant monitoring systems, excitation systems, thermal control systems, relay protection and safety automatic devices and other network-related safety equipment, lifting equipment, power secondary safety protection, pressure vessels, and hydrogen production systems in a timely and thorough manner Eliminate equipment defects and potential accident risks, strengthen equipment on-site inspections, and control abnormal events beforehand. The team is required to assign responsibility for equipment to one person, have daily inspection records, and be reviewed weekly by the supervisor. The director in charge of the department leads a team to inspect key parts of the equipment under his jurisdiction every week to ensure that important auxiliary machines and main protection do not abnormally escalate into accidents. Inspection records are required to be archived for investigation. Establish an emergency response team during maintenance, reasonably arrange the personnel on duty, and rush to the scene in time according to department requirements in case of emergencies, ensure that equipment defects are handled and eliminated in a timely manner, and equipment maintenance is effectively carried out. Successfully completed the tasks of "ensuring safe long-cycle power generation", "two sessions and one festival", xx Asian Games, and Paralympic Games. As of December 31, 20xx, the safety record of the maintenance department was 1979 days, with no personal casualties, 3 first-class obstacles not caused by human responsibility, xx second-class obstacles, and 1 general equipment accident with secondary responsibility. Habitually violated regulations 21 times. Compared with 2009, the safety situation has improved significantly. ***3455 work tickets were issued, 2 were unqualified, and the pass rate was 99.97%; the number of safety activities reached 297.

2. Strengthen safety training and publicity work, organize department employees to actively participate in various safety activities, continuously improve employees' safety awareness, and create a safety culture atmosphere within the maintenance department that I want to be safe.

In 20xx, the maintenance department strengthened safety training and education for employees. Taking the opportunity of immediately carrying out safety inspections, in response to several personal death accidents and fire accidents that occurred in the group company, all personnel were organized to watch safety videos and re-standardize them. Safety technology training work; strictly implement the "three-level training and education" system, conduct department-level and team-level induction safety training for new employees to improve the safety awareness of new employees; regularly organize safety examinations for personnel including external units to consolidate personnel safety skills. Organized and participated in the company's safety knowledge examination, safety regulations examination, etc. for the company's production safety personnel. ***546 people participated in the safety training, with a total number of 192 people, including xx1 people in the maintenance department and 61 people in the outsourcing unit. This year, the Maintenance Department published a blackboard for carefully studying the spirit of the company's fourth session of the Second Workers' Congress, a blackboard for the "Strictly Saving and Working Hard to Start a Business" activity, a "Safety Month Special" blackboard, a series of safety production activities, and a blackboard for the fourth quarter sprint to ensure safe power generation. , create a profound safety atmosphere and continuously improve employees’ safety awareness.

3. Carry out various safety inspection activities and safety evaluation work, carefully find loopholes and hidden dangers in safety production, and rectify the identified problems to ensure the safety of people and equipment.

According to the company's deployment, we will formulate careful plans and carry out safety inspections before the Spring Festival, special management activities to ensure long-term power generation of the unit, spring safety inspections, immediate safety inspections, autumn safety inspections, Lifting equipment safety inspections, fire safety inspections, implementation of the group company's safety and stability video and telephone conference spirit, immediately carry out safety production inspections and other activities, and carry out timely rectifications according to the requirements for inspection and rectification of identified problems, and follow up on unfinished products Projects, work on them when you have the chance. Over the past year, the *** inspection found 334 problems that were handled by the maintenance department, of which 287 have been solved, with a completion rate of 85.93%. In daily work, we carefully carry out on-site safety inspections and assessments, pay close attention to on-site safety violations and safe and civilized construction management. In the past year, we have organized various on-site inspections 60 times, and 140 problems have been discovered, and we have dealt with them The identified problems were rectified in a timely manner, and the safety management of C-level maintenance of unit #3 and maintenance of unit #4 was particularly strengthened. On-site location management and civilized sanitation have been greatly improved compared with previous maintenance. Rubber is laid everywhere on the maintenance site, especially on the turbine side and boiler zero meters to basically achieve the "three no-ground"; power cords and leather pipelines are basically done. When it comes to the horizontal, vertical, and overhead layout, the layout is unified. The entire maintenance period was tense and orderly, safety management and supervision were in place, and no minor injuries or above unsafe incidents occurred. Strengthen on-site safety inspection and supervision every day, promptly provide assessments and warnings when problems are found, and instruct immediate rectification. By strengthening on-site inspections and assessments, the safety production situation at the maintenance construction site has improved compared with the past, habitual violations on site have been reduced, and safe and civilized construction has been improved.

In response to the rectification work of self-identified safety evaluation problems last year, department leaders attached great importance to it and personally urged each major to complete it strictly as planned. For projects that did not meet the conditions, they went through extension procedures and strictly implemented closed-loop management. In 20xx, the maintenance department *** had 37 safety evaluation and rectification projects, 35 of which have been completed, with a completion rate of 94.6%. There are still 2 unfinished projects that have applied for extension procedures. In the 20xx safety evaluation, the Maintenance Department actively organized teams and professional offices to assign dedicated personnel to carry out self-examination work. The directors of each major supervised the review and carefully reviewed and evaluated. 84 problems were identified. The rectification plan will be issued next year after the Ministry of Work Safety is issued. Make rectifications.

4. Strengthen defect management to ensure the safe and economical long-term operation of the unit. Based on the problems existing in equipment defect management in 20xx, the Maintenance Department specially designated a deputy director to be responsible for the closed-loop management of defect processing and required defects deal with.

Summary of maintenance work in the first half of the year 2

After hard work, the electrical team employees adhered to the principle of "safety first and quality first" under the premise of tight time, heavy tasks and no maintenance experience, and under the leadership of the whole plant station With the hard work and hard work of the correct leadership and the staff of the electrical team, we successfully completed various planned projects for the 2020 overhaul. The relevant situation is summarized as follows:

1. Improve the organizational structure and implement job responsibilities

At the maintenance mobilization meeting, the team leaders put forward practical and feasible solutions in a targeted manner on the maintenance materials, maintenance progress, maintenance safety measures, maintenance technical measures, and the key points and difficulties of the maintenance work during the major maintenance. In order to ensure the maintenance The work was completed according to quality, quantity and time. The team members carefully studied the "Electrical Deficiency Elimination Plan" and ensured that responsibilities were assigned to each person, tasks were implemented, checks were checked at all levels, and everyone fulfilled their responsibilities. Fully mobilizing the enthusiasm and creativity of each maintenance personnel has laid a solid foundation for the safe and smooth completion of maintenance work.

2. Emphasis on safety management to ensure that neither a person nor a piece of equipment is injured

Before the overhaul, the electrical group organized all employees to learn the "Electrical Safety Regulations" to enhance employees' safety in the workplace. Safety awareness during the maintenance period, only after passing the assessment can you participate in the maintenance. During the maintenance period, various electrical safety systems should be carefully implemented. When executing the "application for power outage", operations should only be carried out after each major has confirmed safety. During the process of connecting and removing temporary electricity, the "Temporary Electricity Safety Work Certificate" must be strictly followed. During the power outage process of the substation, all operations are strictly performed in accordance with the order of the "Switching Operation Ticket". Handle relevant work tickets during maintenance by outsourcing units, and supervise and correct unsafe behaviors of maintenance personnel at any time. During the 2020 annual overhaul, the electrical team managed to injure no one but no equipment.

3. Busy but not chaotic, quality first

When the maintenance plan was completely disrupted, the whole group of employees braved the scorching heat and faced the difficulties. Under very unfavorable conditions , complete all planned tasks.

In terms of high voltage, 13 sets of outdoor high-voltage equipment, 1 main transformer, 32 sets of high-voltage switch cabinets, and 2 sets of soft-start equipment were cleaned and tightened, and 20 sets of secondary equipment were overhauled. A #1 refrigerant compressor current transmitter was added, and the backend system was completely renovated to eliminate the abnormal sound of the incoming bus. Replace 4 ammeters for lean liquid pump and circulating water pump. Replace the bearings of the #1 lean liquid pump motor. All insulating components were inspected and hidden dangers from previous operations were eliminated.

In terms of low voltage, 5 power distribution rooms including the comprehensive building, circulating water, sewage plant and living area were inspected, and 5 UPS including the comprehensive building and loading area were comprehensively cleaned, fastened and tested. Seven 10KV transformers in the factory area were inspected for fastening and interlocking tests were conducted. Add two temporary power sources for the circulating water and sewage pump rooms, and bury the temporary cables for the air nitrogen station heater in the cable trench. Renovate two sets of refrigerant compressor lubricating oil pumps. The closed cooling tower cable tray was replaced. The whole station has 24 low-voltage closed cooling tower fan motors, 12 closed cooling tower water pump motors, 11 air-cooled motors, and 2 thermal oil fan motors for maintenance and waterproof and anti-corrosion protection for the motors in harsh environments. A comprehensive inspection of the lighting system of the entire station was carried out, and damaged lamps were completely repaired and replaced. During the maintenance period, numerous temporary power supplies were connected and disconnected.

IV. Seize the opportunity to study hard

Equipment overhaul is a rare learning opportunity. This overhaul has enabled every employee in the team to improve their professional skills and practical ability. The improvement is obvious. For everyone, the driving stage and the overhaul period are the best times to learn knowledge. Those who were afraid to move after seeing them before will now have the opportunity to show off their skills. Don't be afraid of not being able to fix it well. Afraid not to practice. Everyone gets started with operations and maintenance and further improves their professional maintenance skills. During the modification of lubricating oil pumps and backend modifications, there was guidance from the manufacturer's professional technicians, and the employees' careful study during the maintenance of power distribution cabinets, UPS, and frequency converters laid a good foundation for their own operations and the operation of the devices in the future.

The equipment overhaul in 2020 is over, and we have successfully completed all planned tasks. However, we also recognize our own shortcomings, but this will only become our motivation.

Summary of the work of the first half of the year 3

Under the leadership of the company, we regard the company’s board of directors as the goal to achieve a profit of 30 million, conscientiously implement the work policies and various work arrangements of the general manager’s office meeting, and closely focus on To achieve the production goal of long-term stable operation, unify our thinking, gather strength, inspire our spirits, and strive to do a good job in all tasks. Pay attention to the role of the backbone of each level of the workshop to ensure the stable operation of production equipment, and have done a lot of work, which is summarized as follows:

1. Production equipment maintenance work

1. Strengthen equipment Daily inspection and management work. At the beginning of the year, our workshop strengthened daily inspection work and formulated a strict inspection system based on the characteristics of our workshop's scattered equipment and wide range of points. Inspection routes have been formulated for inspection equipment, and daily inspections are carried out by technicians and directors to inspect and supervise, and an effective reward and punishment system is implemented. This allows workshop personnel to have a clear understanding of the operation of the equipment. During equipment maintenance, problematic equipment can be inspected again. This not only saves maintenance time, but also solves problems in a targeted manner and ensures maintenance quality. The j103c3# powder discharge machine motor in the power workshop found abnormal bearing sound during inspection, and carried out timely maintenance to eliminate the hidden danger. During the inspection of the 450-1a, 450-1c, 450-1d, and 450-1e cooling tower fans in the water supply and drainage workshop, it was found that the motor blades were broken, and they were replaced in time to prevent the motor from burning due to overheating.

2. Centralize technical backbones to solve technical problems. The PLC control system of the coal conveyor belt in the power workshop often experiences sudden shutdown failures, and the control loop has been checked many times with no results. In order to solve this problem, the workshop organized technicians to carry out research, and used the time when coal was not available to conduct repeated tests and finally found out the problem. It turned out that the starting current of the crusher was too large, which affected the switching power supply of the plc, causing the plc to suddenly lose power. After the 1# slag scooping machine inverter was installed, the DCS could not adjust the speed, and the debugging personnel of the slag scooping machine manufacturer could not find the problem. After our workshop learned of the situation, we immediately arranged for workshop technicians to go to the site to solve the problem. Finally, it was discovered that several parameters of the frequency converter were incorrectly set, and two external wirings were missing. After solving these problems, the slag scooper was running normally.

2. Production equipment technical transformation project work

In order to achieve production output and efficiency, the company has carried out many transformations on the first-phase production system. In these technical transformations, our workshop fully cooperates with the process in electrical technology design and equipment installation and construction. The design and installation of the electrical parts of these technical transformations were very successful. The details are as follows:

1. Electrical control design and equipment installation of the gray water filter tank in the sewage treatment station

2. Electrical installation to increase the power of the neutralization submersible pump in the desalted water station

3. Modification of the capacitor cabinet in the low-voltage power distribution room

4. Modification of the cooling tower fan motor blades

5. The water supply and drainage chlorine bottle room and the quality inspection center gas bottle room Lighting fan system modification

6. Replacement of two oxygen pump frequency converters and control loop modification

7. p1605 station control loop modification

8. p1605 new Installation of refueling station

9. Modification and installation of rainwater collection pump:

10. Electrical design and installation of 801 injection plug pump

11. 702, 802 Tower lighting renovation

12. Electrical design of boiler secondary recovery water pump

13. Electrical design and installation of gasification torch seal water recovery pump

14 , Electrical design of lighting fan system for slag scooping machine project

15. Electrical coordination for filter project

16. Electrical coordination for sulfur recovery project

17. Gasification new Electrical design of fan and lighting

3. Annual overhaul work

In order to improve the sense of responsibility of each employee and ensure the quality of maintenance, our workshop has implemented a work order responsibility system. Each work order records the content of each work, the person who completed the work, the fault location, the completion status, the person in charge of safety, etc., and also requires the user to accept it. After acceptance, the work order is archived so that quality problems that arise during maintenance can be identified and corrected. Those responsible will be punished. This greatly enhances the sense of responsibility of the maintenance personnel and ensures the quality of maintenance. Safety is a big issue when it comes to electrical maintenance.

Due to the many types of jobs involved, in order to avoid misoperation of power transmission during power outage maintenance, our workshop has strict requirements for team leaders before maintenance. When power supply is cut off, the operation ticket system must be strictly implemented and operations must be carried out according to regulations to ensure the safety of maintenance personnel. After we took the above measures and through the joint efforts of our workshop maintenance personnel, we finally successfully completed this maintenance task with quality and quantity guaranteed, making due contributions to the smooth completion of the maintenance work. This major overhaul has been completed:

1. Replacement of oxygen pump current transformer; replacement of 307a part main connector; power outage cleaning and tightening of each power distribution room; minor repair of all 10kv transformers; on-site distribution 37 maintenance items including electrical cabinet maintenance and factory-wide motor junction box inspection.

2. 110kv area equipment preventive test to protect the entire group verification; 10kv equipment preventive test to protect the entire group verification; whole plant ground resistance test, DC system, communication system inspection and other 20 tests project.

IV. Workshop inspection and maintenance personnel training

Our workshop has formulated a detailed employee job training system and has corresponding assessment rules. The workshop often organizes squad leaders and technicians to conduct on-the-job training and spot checks, and organizes lectures for relevant technicians to improve the theoretical and technical levels of employees. Organize a team to conduct simulated operations and configure motor control loops, and have workshop technicians artificially create faults for employees to find and improve their actual operation levels.

5. Workshop equipment ledger management

According to the requirements of the company and mobile management, our workshop has made detailed statistics on the electrical equipment of the entire company, as follows:

1. Statistics on spare parts reserve quota.

2. Statistics on fixed assets of cable factories and complete fixed assets ledger.

3. Preparation of overhaul plan and material plan.

4. Statistics of dynamic and static sealing points.

5. The equipment management account is complete.

6. Compilation of elevator management system.

7. Prepare the motor delivery repair system.

6. There are still many problems in equipment management and maintenance in workshops

1. Each workshop does not arrange for the specified person to handle the "Maintenance License". According to regulations, the person in charge of maintenance should apply for the "Maintenance License", but due to various reasons, it is the chemical operation personnel who often come to apply for the ticket.

2. There was no "Maintenance Permit" held by the person in charge of the maintenance when the power supply was completed. Since the person handling the invoice is a chemical operator, the "Maintenance Permit" is usually lost during shift handover.

3. The workshop equipment management ledger needs to be further refined. The workshop will gradually improve and refine the equipment management account in accordance with the requirements of mobile management.

4. There are still hidden dangers in on-site temporary line management. For example, temporary lines such as lighting and welding machines that are required to be installed during on-site maintenance are often not notified to the electrical personnel to remove them after the inspection is completed, and the electrical personnel do not know whether the on-site inspection is completed. In this way, the temporary lines are always charged and left on site, causing hidden dangers. Summary of maintenance work in the first half of the year 4

Main gains of this department in the first half of the year:

Experience and preventive measures

1. The technical capabilities of personnel have been greatly improved. Familiar with the understanding of waste power plant equipment. In particular, various problems that have arisen in garbage incinerators have been dealt with to a certain extent

2. The quality of personnel and team spirit are also gradually improving, and the original individual combat has gradually transitioned to team action. , mutual complementation and assistance better ensure the smooth progress of maintenance work.

3. The organizational discipline of the personnel has been greatly improved. The most obvious thing is the lining up required by the company, which has won honors for the company and won praise from many visitors.

4. The implementation of various maintenance systems has also been gradually formalized, such as regular inspection system, defect elimination system, work ticket system, etc.

Disadvantages:

1. The technical level of maintenance personnel is still a bit uneven. Some people have made greater progress while others have made slower progress, especially when on duty at night. During this period, some personnel were not yet fully qualified for various maintenance tasks.

2. The maintenance tools and equipment are not very complete, and many maintenance and repair work still need to be outsourced, especially the various experimental facilities are not yet qualified.

The next key work

1. Do a good job in maintenance safety work. Safety is no small matter. Start with small things to ensure that no man-made safety accidents occur during maintenance.

2. Continue to supervise the implementation of various maintenance systems, truly give full play to the initiative of equipment owners, and ensure the safe and economical operation of equipment.

3. Do a good job in technical training of personnel. In the future, we should train and learn based on actual work needs, and conduct more training on specific maintenance operations and essentials, so that everyone can bring out their own specialties and teach them. Give to colleagues and make corresponding contributions to the company.

In short, the maintenance department has achieved certain results in half a year. During the same period, it also discovered the shortcomings of the department. Therefore, it will never give up seeking innovation just because of small achievements. pace. In the future, we will continue to work hard, standardize various systems, and contribute our department's strength to the future development of our company!