2014 Electrical Automation Internship Report

Catalogue 1 Electrical Automation Internship Report 2 Electrical Automation Internship Report 3 Electrical Automation Internship Report Part 1: Electrical Automation Internship Report

I. Internship purpose

Production practice is an important practical teaching link that combines teaching and production practice. In the production internship process, the school also aims to develop students' ability and methods to observe problems, solve problems and learn from production. Cultivate our spirit of solidarity and cooperation, and firmly establish our group consciousness, that is, personal wisdom can only be maximized if it is integrated into the collective.

Through this production internship, I learned the technical management knowledge of electrical equipment operation, the manufacturing process knowledge of electrical equipment, and the practical knowledge that I could not learn in school. When we learn from our workers, we have cultivated our hard and simple style. In the practice of production, we have realized that strict discipline, unified organization and coordination are the needs of modern large-scale production, and it is also necessary for our contemporary college students, thus further improving our organizational concept. During the internship, we learned about the power supply and distribution system of the factory, especially the composition and operation process of the plant substation, laying the foundation for the design of the residential power network design and the construction of the power supply and distribution system. By visiting the automation system of Sichuan First Chemical Group, I have broadened my horizons, broadened my knowledge, and accumulated the necessary emotional knowledge for learning professional courses, which laid a solid foundation for us to make qualitative changes in the future. Through production internships, we have played an important role in consolidating and deepening our theoretical knowledge, cultivating our independent work ability and strengthening our labor perspective.

Second, the internship content

safe education

First, the purpose of safety education learning:

Second, the occurrence of accidents and their prevention:

1. Factors in the accident

Human factors - unsafe behavior

Material factor - unsafe factor

2. Factors considered to be an accident

1), management factors;

2), violations:

a, wrong operation

b, illegal operation

c, very dry

3), poor security responsibility.

Third, the main safety precautions for entering the factory

1, fire and explosion protection

2, dust and antivirus

3, to prevent burns

4, to prevent electric shock

5, to prevent mechanical damage

6, prevent high places from falling

7, to prevent vehicle damage

8, prevent hoisting machinery damage

9, to prevent object attacks

10. Do not drink alcohol in the pre-class class. 4. Instructions for operation in the equipment:

1. Work in all kinds of storage tanks, tank trucks, towers, etc., as well as basement, pit, pit, sewer or other closed places.

2. The pipes and holes that are connected to the outside of the equipment should be effectively isolated from the outside world.

3. Before entering the equipment, the equipment must be cleaned and replaced.

4. Measures should be taken to keep the air inside the equipment good.

5. Within 30 minutes before the operation, sampling and analysis of the gas in the equipment must be taken.

Representative

6. When entering the equipment that cannot meet the cleaning and replacement requirements, the corresponding protective measures must be taken.

7. When working in the container, the lighting should be less than or equal to 36V due to good lighting.

Explosive luminaire

8, multi-work, multi-level cross-operation should take measures to avoid damage between each other, and set up a safety ladder or a safety platform, than when the guardian uses safety rope bolts for construction

9. The equipment must be guarded by special personnel, and should be rescued and effectively protected.

Protective means

10. The “Safety Operation Certificate in Equipment” shall be handled by the construction unit. The person in charge of the project or the technician shall fill in the operation permit, and the contents of the maintenance work unit and the characteristics of the chemical production shall be briefly introduced:

Chemical production is characterized by the use of natural gas as a raw material to synthesize amines by direct catalytic method.

1, raw materials, semi-finished products, finished products are divided into flammable, explosive or toxic substances

2, the production process is mostly high temperature, high pressure or bottom temperature high pressure

3. Strong continuity of production and high degree of automation

4. There are many industrial wastes, affecting the environment, learning and understanding the main structural types, structure types and characteristics of substations. Learn and understand the production technical materials of the main components of the substation, including: various technical standards, drawings, special equipment specifications, etc.

Understand the main technical requirements of the substation and related standards. , understand the production organization management of the factory, labor quota and cost core

The method of calculation.

Learn about the research of new materials, new processes and new technologies carried out by the factory. During the internship, socialism, patriotism education, love labor, discipline education, and safety and confidential education were carried out. Third, the conventional type of substation equipment selection

The selection and configuration of equipment should be miniaturized, and the technology should be advanced, the work performance should be stable and reliable, the quality guaranteed, and the after-sales service can keep up.

There should be two main transformers in the house, which require energy-saving and on-load voltage regulation. Generally, S10 or SZ10 transformers are used. The S11 type is also in development. The transformer capacity should be determined according to the power load, but the two main transformer capacities. The ratio should not exceed 1:3, the impedance voltage, the ratio, and the wiring group should be the same, and the error should not exceed ±5%, which provides conditions for the parallel operation of the transformer in the future.

The change used is 1~2 sets of S10-50kVA/35/0.4kV direct distribution, installed on the outside of 35kV input line or 35kV bus line, and the change used is controlled by drop fuse.

HV6 circuit breakers should be used for high voltage circuit breakers, LW8-35 type for 35kV circuit breakers and LW3-10 type for 10kV circuit breakers.

The 35kV incoming line adopts double return and is ready for the ring network project. The 35kV busbar uses LGJX-120 aluminum stranded wire, which adopts single busbar without segmented wiring, 10kV busbar adopts segmented wiring, and the outgoing line is 4~6 times.

The reactive power compensation capacity is determined by 10% to 15% of the main variable capacity. The BWF-200-1W type capacitor is used, and the voltage is star-shaped.

Lightning protection measures: The lightning protection line is used for the 35kV line, and lightning rods and lightning arresters are used. The lightning rod is welded with galvanized round steel and installed in the four corners of the area; the arrester is made of metal oxide arrester, the 35kV side is mounted on the busbar, and the 10kV side is installed at the outlet.

The "five-proof" blocking shall be set on the operating mechanism of the isolating switch, and the "five-proof" shall be realized by manual or by computer integrated automation system.

The control, protection and measurement part adopts the computer integrated automation management system. Fourth, the internship process

1. Safety education

At the beginning of the internship, the school organized us to the company to educate us on the safety of the company, explaining the importance of safety issues and the dangers and potential dangers encountered in the internship. 2. Organize visits

At the beginning of the internship, the school organized our visit to the internship unit to get an overview of it. During the internship, we also went to other related workshops to conduct professional visits, gained more extensive production practice knowledge, and more accurately understood the operation mode of the factory. During the visit, we focused on advanced design ideas and methods, advanced process methods, advanced tooling, advanced equipment features, and advanced forms of organizational management. 3. Workshop internship

Our internship in the workshop is the main way of production internship. We conducted internships in designated workshops in accordance with the internship program, and completed the prescribed internship content through observation, analysis and calculation, and consultation with workshop workers and technicians. 4. Combination of theory and practice

In order to be able to carry out internships in the workshop more deeply, in the internship process, we combined the knowledge of the books and the requirements of the internships, and perfectly combined the theory with the actual situation, which also prompted us to continuously study and research. 5, internship diary

During the internship, we recorded the daily work, the results of the observation study, the collected materials and charts, and the contents of the reports we listened to in the internship diary. Feel free to accept the teachers' inspections and corrections. V. Other activities

While completing the content of our internship business, we often use the opportunities of on-site learning to carry out internships to the society, workers and engineers. In the spare time, organize activities such as party games and ball games, and strengthen ideological and political education activities, etc.

Average speed tube

The constant velocity tube flow sensor is a differential pressure flow sensor developed based on the principle of pitot tube velocity measurement. The constant velocity tube is used with the differential pressure transmitter and the display instrument to measure the flow of liquid, gas or steam in the round pipe and the rectangular pipe. The average speed tube can be widely used in the power, petroleum, chemical, textile and other industries due to its small pressure loss, easy installation and maintenance, especially suitable for the measurement of large-diameter pipeline flow.

First, the adoption of standards

JBIT5325

Second, the main technical parameters

1, accuracy grade 1.5, 2.0

2. Working pressure is less than or equal to 40Mpa

3, measuring pipe diameter DN25 ∽ 3000mm

4, working temperature -40 ∽ 250 ° C, the highest temperature can reach 450 ° C

5, the ambient temperature -40 ∽ 85 ° C

6, fluid conditions

The measured medium must fill the entire pipeline and fully develop the flow state, and the single-phase continuous flow of non-critical flow fluid.

Insert the built-in double venturi

The insertion of the built-in double venturi is also a flow measuring device based on the principle of differential pressure. The device consists of a short section of the same size as the pipe and a double venturi inserted into it. The main set is used for the measurement of air volume of large pipes and rectangular pipes, because it has the following characteristics:

High sensitivity and stable performance

Small size and low pressure loss

Easy to install and easy to maintain

Therefore, it can be widely used in the construction and renovation of new and old power station boilers, industrial boilers and other large-caliber bottom wind speed air flow measurement. The main technical parameters

1, accuracy grade 1.5, 2.0

2, the working pressure is less than or equal to 1.6Mpa

3, working temperature -40 ∽ 250 ° C, the highest temperature can reach 450 ° C

4, the ambient temperature -40 ∽ 85 ° C

Dimensions

Caliber - DN250 ∽ DN3000 height h - 300

Total width - 270 total height H - 300 + D / 2

The orifice valve valve type orifice plate throttling device is divided into two types: advanced and simple. The common features are as follows:

1. The most common orifice flowmeter structure is easy to copy, simple, firm, stable in performance, long in service life and low in price;

2, the application range is extremely wide, so far no class of flowmeters can be compared with it, all single-phase fluids, including liquid and gas can be measured, some mixed phase, such as gas-solid, gas-liquid, liquid-solid, etc. can also be applied , the diameter of the general production process, the working state has products;

3. The detection component and the differential pressure display instrument can be separated and produced differently, which is convenient for specialization to form economies of scale, and their combination is very flexible and convenient;

4, the test parts, especially the standard type is universal, and is recognized by international organizations and according to the measurement organization, the standard type of throttling device can be put into use without calibration.

The main criteria adopted are:

GB/T2624----93 flow measuring orifice device orifice plate, nozzle and venturi

SY/T6143----1996 tube measures fluid flow filled with round tubes

JJG640------94 differential pressure flowmeter

JJG193------96 valve orifice plate throttling device

Seven, internship sentiment

Production practice is an important practical teaching link for Panzhihua College to train high-quality engineering and technical personnel. It is an important way to combine school teaching with production practice and to link theory with practice. The purpose is to enable us to train and train in the aspects of professional knowledge and talent quality through internship, so as to lay a good foundation for becoming a business backbone as soon as we graduate from work. Through production internship, we have learned and mastered the main structure, production technology and process of the substation; the main tooling equipment used; the technical materials for product production; the management of production organization, etc., to deepen the working principle of the substation, Understanding of basic theories such as design and experimentation. Let us understand and master the knowledge of the working principle and structure of the substation. In order to further learn professional courses, we have laid a good foundation for research and design in this area. In this production internship process, not only did we deepen our understanding of the knowledge we learned, but more importantly, we corrected our labor perspective and improved our ability to work independently.

Part 2: Electrical Automation Internship Report

In accordance with the school's teaching plan, I have been internship with Yantai Dongxin Telecom Equipment Co., Ltd. since June 2019. The main content of the work is assembly, wiring, wire making and commissioning. Assembly, wiring and wiring, the commissioning process should be carried out in strict accordance with the electrical commissioning manual, step by step to find the problem and solve the problem. In addition, it also does the work of soldering circuit boards, making wires, assembling modules and installing empty plugs, mainly involving voltage dividing plates, rectifying plates, control boards, temperature display circuit boards and crystal lifting limits.

Yantai Dongxin Telecom Equipment Co., Ltd. is a united whole. Every employee has his own job, including the internship company. The company needs to arrange jobs according to its needs of faster and better development and combined with individual situations. There are many jobs, such as doing technical work, doing market work, and doing management work. Which part of the problem is not allowed. Therefore, I think every job is very important. As a technical employee in the future of electrical control, I will always adhere to the company's "seven things consistent system" principle. Technical staff can't just wire, wire, debug, and assemble, and don't understand R&D, design, and programming. My understanding of the company's development, Yantai Telecom equipment manufacturing company has been in a period of rapid development in recent years since the industrial restructuring into the solar industry. Whether domestic or international demand for semiconductor germanium materials is compared to the current market supply, there is a huge gap. Therefore, as a non-polluting clean energy source, the solar energy industry has great market potential and also provides a broad space for the company's development.

Through this production internship, I learned the technical management knowledge of electrical equipment operation, the manufacturing process knowledge of electrical equipment, and the practical knowledge that I could not learn in school. When we learn from our workers, we have cultivated our hard and simple style. In the practice of production, we have realized that strict discipline, unified organization and coordination are the needs of modern large-scale production, and it is also necessary for our contemporary college students, thus further improving our organizational concept. Through production internships, we have played an important role in consolidating and deepening our theoretical knowledge, cultivating our independent work ability and strengthening our labor perspective.

I think there is a sentence in the company's corporate culture that summarizes the entire content of the technical work - "research, experiment, design, manufacture, installation, use, maintenance, seven major technical personnel to be a slap in the end!". I think the "seven big things" mentioned here are technical work. Some people think that only researching and designing some high-tech content is the real technical work, and depreciating the work of installation, use and maintenance, and thinking that the technology is low or even technical. This view is one-sided and wrong. From a philosophical point of view, it is an idealistic view.

Practice is the foundation of theory. Theories are summed up and created in practice to guide practice. Testing, manufacturing, installation, use, and maintenance are our practical work. This is like a computer. To make it work properly, hardware and software are inseparable and indispensable. Hardware is the foundation of software, and software is the soul of hardware. Undoubtedly, as an intern who has just left the school to work, my experience in practice is still very scarce. I have learned more theoretical knowledge in school. Therefore, I am honored that the superiors gave me the opportunity to work in this workshop, so that I can truly understand the technical work in practice and make up for the shortcomings in the practical experience.

Finding problems from practice can solve the problem. The following mainly reports some of the problems I encountered during the debugging process and how to solve them. For general problems, such as whether the distribution box switch is connected incorrectly or whether the installation is in place, it can be easily solved by visual observation through observation; for some accidental and special problems, it takes more time during the debugging process. You need to think positively, ask the experienced staff, and do all kinds of tests and tests yourself. After the problem is solved, you must make a serious summary so that you can know it and know why. In addition, I think that the circuit wiring principle of the rectifier motherboard is very important for mastering the maintenance process, but many maintenance workers simply do not understand.

Finally, I would like to make a few suggestions on the company's technology and management:

1) At present, the company's independent research and development, design, production of electrical control cabinet equipment is relatively old. From the perspective of the company's long-term development and economic interests, I believe that the control products of the electrical control part should be improved and new products should be launched.

2) During the wiring, wiring, commissioning and installation of the cabinet, I believe that the machine personnel and electrical personnel should strengthen communication and cooperate with each other to complete the work tasks faster and better, and improve production efficiency.

In the production workshop, I first worked in the cable class. After all, it was the first time. So it was very clumsy at first, but it was very hard. However, with the care and help of colleagues and classmates, I continued to improve and grow, and I fully felt the company. The unity and warmth of the big family, so I decided to stick to it even if I was tired again, so I felt a lot easier to work. I also consulted with humility, and with the help of the teacher's guidance, I quickly adapted to the job. After these days of transition, I have mastered the steps of making cables and some basic considerations. However, I don't know much about the relevant professional knowledge, so I humbly ask the teacher to read the relevant books at the same time, and carefully study it. The final problem is solved very well.

During the internship in the workshop, although sometimes the work is very hard and tired, I have experienced the professional skills in practice and accumulated practical technical experience. Production internship is an important practical teaching link. It is an important way to combine school teaching with production practice and to link theory with practice. The purpose is to enable us to train and train in the aspects of professional knowledge and talent quality through internship.

In this production internship process, not only did we deepen our understanding of the knowledge we learned, but more importantly, we corrected our labor perspective and improved our ability to work independently.

Finally, I still have at least the following issues to solve.

1. Lack of work experience

Because I lack experience, many problems can not distinguish between the primary and secondary, and some training or learning can not find the key points. With the internship work, I think I will gradually accumulate experience.

2, the work attitude is still not active enough

In the work, I can only complete the work of arrangement. Although I can actively ask for the work when there is no work task, if I can't do it, I will be relaxed and I can't take the initiative to learn. This is mainly because I am lazy, in the future. Efforts should be made to overcome inertia. When there is no work task, the work is required to be arranged, and when there is no work, it is self-learning.

3, not enough work to study

I chose it myself, because in my opinion, only the technology recognized by the market has value, and I also think that I am more suitable to do the work of communicating with others. I firmly believe that through this period of internship, the practical experience gained from it will benefit me for life, and will continue to be confirmed in my actual work after graduation. I will continue to understand and understand the knowledge and expectations I have learned during the internship. In the future work, I will apply the theoretical knowledge and practical experience I have learned to practical work, fully demonstrate my personal values ​​and life values, and work hard to realize my ideals and bright future.

In short, in the past year, under the care and training of teachers and colleagues, I have studied hard and worked hard, my ability has been greatly improved, and my overall quality has also developed comprehensively, but I know that there are still some Shortcomings and deficiencies. In the future work and study, I will further rigorously demand myself, humbly learn from my excellent colleagues, continue to work hard to correct my shortcomings and deficiencies, and strive for greater progress in thinking, work, study and life.

Part 3: Electrical Automation Internship Report

I am about to graduate soon. Under the leadership of the school, we will go out for an internship and practice in an electrical automation factory. First of all, let us know what electrical automation is. Electrical automation technology mainly masters electrical technology, power automation technology, various electrical equipment. And the basic principles and analysis methods of automation equipment, can be engaged in the installation, design, commissioning, maintenance, technical transformation, product development and technical management of power supply, various types of electrical equipment, electrical control and automation systems, advanced technical application of specialized personnel. The main courses offered include: Advanced Mathematics, Engineering Mathematics, English, Computer Culture Foundation, C Language Programming, Electrical Engineering, Analog Electronic Technology, Digital Electronic Technology, Motor Drive Foundation, Power Electronics Technology, Automatic Control System, Microcontroller and Interface Technology, factory power supply technology, factory electrical control technology, PLC technology and application, automatic detection technology, computer control technology. The main practical aspects are: metalworking internship, electrician internship, power electronics technology course design, electrical control course design, graduation internship, etc. After graduation, students can engage in engineering construction, equipment maintenance, maintenance and commissioning of power supply engineering, automation instruments and electrical control systems in power plants, power supply systems, electrical engineering and automation fields, and user units, service departments and sales departments of enterprises and institutions. , technical transformation and sales. This is the electrical automation technology.

During the production internship, we learned a lot. The school also aims to develop students' ability and methods to observe problems, solve problems and learn from production. Through this production internship, I learned the technical management knowledge of electrical equipment operation, the manufacturing process knowledge of electrical equipment, and the practical knowledge that I could not learn in school. When we learn from our workers, we have cultivated our hard and simple style. In production practice, we have realized that strict discipline, unified organization and coordination are the needs of modern large-scale production, and it is also necessary for our contemporary college students, thus further enhancing our organizational concept. I think there is a sentence in the company's corporate culture that summarizes the entire content of the technical work - "research, experiment, design, manufacture, installation, use, maintenance, seven major technical personnel to be a slap in the end!". I think the "seven big things" mentioned here are technical work. Some people think that only researching and designing some high-tech content is the real technical work, and depreciating the work of installation, use and maintenance, and thinking that the technology is low or even technical. This view is one-sided and wrong. From a philosophical point of view, it is an idealistic view. Practice is the foundation of theory. Theories are summed up and created in practice to guide practice. Testing, manufacturing, installation, use, and maintenance are our practical work. This is like a computer. To make it work properly, hardware and software are inseparable and indispensable. Hardware is the foundation of software, and software is the soul of hardware. Undoubtedly, as a new employee who has just stepped out of the school to work, there is still a lack of practical experience. I have learned more theoretical knowledge in school. Therefore, I am honored that the superiors gave me the opportunity to work in this workshop, so that I can truly understand the technical work in practice and make up for the shortcomings in the practical experience. Finding problems from practice can solve the problem. The following mainly reports some of the problems I encountered during the debugging process and how to solve them. For general problems, such as whether the distribution box switch is connected incorrectly or whether the installation is in place, it can be easily solved by visual observation through observation; for some accidental and special problems, it takes more time during the debugging process. You need to think positively, ask the experienced staff, and do all kinds of tests and tests yourself. After the problem is solved, you must make a serious summary so that you can know it and know why. In addition, I think that the circuit wiring principle of the rectifier motherboard is very important for mastering the maintenance process, but many maintenance workers simply do not understand.

Through this production internship, we have learned and mastered the main structural contents, production technology and process of the substation; the main tooling equipment used; the production and use of technical materials; production organization management and other content, deepening the substation The understanding of the basic theory of working principle, design, and experiment. Let us understand and master the knowledge of the working principle and structure of the substation. In order to further learn professional courses, we have laid a good foundation for research and design in this area.