Demonstration thesis of engineering technology: the practice of electronic information engineering in the field of photovoltaic power Abstract Under the social and economic situation of the important period of building a well-off society in an all-round way in China, photovoltaic power generation has become an important reform measure to promote energy structure adjustment and promote healthy and sustainable economic development in various regions. With the further popularization and application of photovoltaic power generation, electronic information engineering technology will play an increasingly important role, and it is of great practical significance to study the practical application of electronic information engineering technology in photovoltaic power field. Starting with related concepts, this paper discusses the significance of applying electronic information engineering technology to the field of photovoltaic power, and briefly analyzes its basic principles and specific application measures.
Electronic information engineering; Photovoltaic electric field; practical application
Photovoltaic (PV) power generation is a relatively advanced and promising new power generation method, which has attracted wide attention from all walks of life because of its green, pollution-free and renewable characteristics. Because of China's vast territory, large latitude span and extremely rich lighting resources, it is of great practical significance to study photovoltaic power generation in China. According to experts' estimation, by the end of the Thirteenth Five-Year Plan, China's photovoltaic power generation will account for about 6% of the total installed capacity in the country, and a large number of photovoltaic fields will be built and put into use one after another. In the field of photovoltaic power, electronic information engineering technology also plays a vital role, which has become one of the important factors affecting the continuous progress of photovoltaic power generation technology. Studying the application of electronic information engineering technology in the field of photovoltaic power generation can not only promote the development of photovoltaic power generation technology, but also have great significance to electronic information engineering technology itself.
1 Overview of related concepts
In photovoltaic power generation? Photovoltaic? In fact, it refers to the photovoltaic effect, that is, the photoelectric effect, which refers to the phenomenon that a semiconductor can generate electromotive force when it is irradiated by light. At present, the most widely used is to make all kinds of photovoltaic cells. And further developed into photovoltaic power generation.
The light in photovoltaic power generation mainly refers to sunlight, and photovoltaic power generation refers to the whole process of directly converting solar energy into electric energy by using the basic principle of photovoltaic effect and special solar cells. Because sunlight is a very green, pollution-free and inexhaustible energy source to some extent, photovoltaic power generation has become a new way of energy utilization, which has attracted wide attention.
Electronic information engineering is an applied subject relying on the development of computer technology, as long as its research object is the processing and control of electronic information. At present, the electronic information industry has become one of the five pillar industries in China, and the electronic information engineering specialty has also become a very popular discipline and specialty. However, the application of electronic information engineering technology in the field of photovoltaic power is still limited to the characteristics and scope of electronic information engineering technology, and its main function is still to obtain and process information.
2 the significance of the application of electronic information engineering technology in photovoltaic field
The wide application of electronic information engineering technology in photovoltaic electric field has important practical significance for the development of photovoltaic power generation, mainly in the following two aspects: First, it can obtain and process data more accurately, and provide more accurate data basis for photovoltaic electric field operation. We should know that photovoltaic power generation is basically electronic components, and there are few mechanical components, which are more prone to various failures and need more accurate monitoring and control. Moreover, in the photovoltaic electric field, the parameters measured by various sensors need to be very accurate, and the subtle differences of parameters will have a great impact on the monitoring and processing of the whole power generation system. Secondly, it has greatly liberated manpower and material resources, and can invest enough resources in more aspects to ensure the normal operation of photovoltaic power generation system. Before computers were widely used, the data monitoring and processing of power stations could only rely on manpower, which not only brought great work pressure to the staff, but also prone to various subtle fallacies. As a very mature technology at present, electronic information engineering technology is very fast and accurate in data monitoring, data collection and data statistics, which liberates a lot of manpower and material resources.
3 practical application of electronic information engineering technology in photovoltaic field
The practical application of electronic information engineering technology in photovoltaic electric field is mainly manifested in four aspects, namely data measurement, data acquisition, data analysis and data statistics. First, the practical application in data measurement. Sensor is one of the most important components in photovoltaic power generation, which mainly undertakes the important task of data measurement. Whether the data measured by the sensor is accurate or not has a great influence on the whole power generation system. With the development of electronic information engineering technology, the periodic error, accidental error and quantitative error of sensor measurement are further reduced, and the measured data are more accurate. Secondly, the practical application in data acquisition. Sensors can not only measure data, but also collect and transmit data after measuring data. Before electronic information engineering technology is widely used, data acquisition and transmission need analog conversion, and data needs to be converted into analog signals first, and then into digital information, which is prone to distortion. Electronic information engineering technology can directly transmit data and ensure the accuracy of data to the greatest extent. Third, the practical application in data analysis. The data analysis here is not just a literal data analysis, and electronic engineering technology can even make decisions directly based on data today. For example, the controllability of light energy is worse than that of water energy, so it is prone to island phenomenon. Using electronic information engineering technology, photovoltaic grid-connected decision-making system can make analysis and decision in time when it is subjected to abnormal waveform. Finally, it is the practical application in data statistics. Traditional data statistics rely on manpower and are prone to errors. Data statistics plays a very important role in photovoltaic power generation. Through long-term measurement, collection and analysis of data, the electric field can make further decisions and improvements. The development of electronic information engineering technology can effectively count the data since the electric field operation, continuously improve the photovoltaic power generation process, and make it run and develop more stably and efficiently.
4 conclusion
The present era is the era of computers and networks. Strictly speaking, electronic information engineering technology is no longer a frontier discipline, but has become a mature discipline, which is widely used in real life. However, due to the infinite development potential of electronic information engineering technology itself, it can be combined with many frontier disciplines and practical activities to form innovative practical applications, and playing an important role in the field of photovoltaic power is the best example of the combination of electronic information engineering technology and practical fields in recent years. At present, the practical application of electronic information engineering technology in the field of photovoltaic power is mainly in data processing, and the most widely used is in data measurement, data acquisition, data analysis and data statistics, which still does not get rid of the characteristics of electronic information engineering technology itself. In the future, with the continuous development of electronic information engineering technology and photovoltaic power generation, I believe there will be more combination between them, which will provide an important basic guarantee for the all-round development of China's social economy.
References:
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Engineering Technology Model II: Reflections on HVAC Engineering Technology Specialty in Higher Vocational Colleges Abstract The formulation of talent training scheme is related to the survival and development of the school. Based on the establishment of the talent training scheme for HVAC engineering technology in the construction of national key demonstration colleges, this paper explores the reform of talent training mode and teaching mode in Shaanxi National Defense Industry Vocational and Technical College.
Personnel training program; Major in HVAC engineering technology; Talent training mode; model of instruction
Introduction to 0
The formulation of talent training program is related to the survival and development of a school. This paper explores the reform of talent training mode and teaching mode in order to promote the development of education and teaching, combining with the formulation of talent training scheme for HVAC engineering technology specialty in the construction of national backbone demonstration colleges in Shaanxi National Defense Industry Vocational and Technical College.
1 Construction of talent training mode for HVAC engineering major in our hospital
In the training mode construction of HVAC engineering and technical personnel, our institute relies on Xi 'an Dajin Air Conditioning Co., Ltd., Haier Air Conditioning Engineering Co., Ltd. and other school-enterprise cooperation workstations, which are employment-oriented, take air conditioning engineering construction as the carrier, take the vocational ability training of HVAC engineering and technical enterprises as the main line, introduce the professional skill appraisal standard of refrigeration industry, and refer to the professional post requirements, so that experts from industry enterprises and schools can * * * build a systematic curriculum system of working process, and * * * design and design it.
1. 1 Construction of theoretical learning stage
Theoretical learning refers to the study of relevant theoretical courses in public basic learning field, professional basic learning field, professional core learning field and extended learning field. At this stage, some courses adopt theoretical study and skill training alternately, while others adopt? Teaching, learning and doing? The integrated teaching mode follows students' cognitive rules, and flexibly uses teaching methods such as lecture, task-driven, project-oriented, case analysis, role-playing and on-site teaching method to arrange course contents step by step, so that students can learn from the shallow to the deep. Doing middle school? , so as to realize the gradual improvement of knowledge and ability.
1.2 post construction in actual operation stage
On the basis of theoretical study, skill training and simulation training in the school, production practice and on-the-job practice were carried out in the post of order training enterprise, and the exploration of formulating the training scheme for HVAC engineering and technology professionals in higher vocational colleges of enterprise product students was carried out. Shaanxi National Defense Industry Vocational and Technical College Building and Thermal Energy Engineering College An 7 10302 Professional Core Course Study and Establishment. Study while working, study for work? The teaching mode of. During the internship, students participate in the production activities of enterprises as professionals in the internship base, and assume the responsibilities and obligations stipulated in the post, which increases students' personal understanding of the production process, including design principles, production equipment, technological processes, rules and regulations, etc., so that students can master the latest technologies and skills in time, strengthen their professional ability, cooperative spirit and sense of responsibility, and truly transform their classroom knowledge into work ability. The national vocational qualification examination related to heating, ventilation and air conditioning engineering technology has been issued, which requires students to obtain corresponding vocational skills qualification certificates (such as refrigeration workers and sheet metal workers), so as to achieve the maximum integration of talent training specifications and job requirements of social employers.
2 Construction of the teaching mode of HVAC engineering technology specialty in our college
In view of the characteristics of HVAC engineering technology specialty and the requirements of related enterprises for higher vocational talents, our college takes the on-campus and off-campus training bases as the carrier to jointly implement it? Six semesters and three stages? Multi-semester and segmented teaching organization mode. The details are as follows: the first stage: 1 and 2 semesters, in which the cultivation of professional general ability is completed. Conduct theoretical study and professional general ability training in schools, public basic fields and professional basic learning fields.
Let students learn relevant public basic knowledge and professional knowledge, complete basic refrigeration skills operation training and national defense development training in training bases and national defense education bases inside and outside the school, carry out professional cognitive practice in enterprises, understand the production organization and technology of specific products, strengthen the cultivation of students' communication, cooperation and self-study ability, infiltrate professional quality education into the teaching process, and integrate campus culture with military culture to achieve the purpose of cultivating students' general ability in refrigeration industry. The second stage: the third, fourth and fifth semesters, the training stage of professional core competence. In the 3rd and 4th semesters, we will complete the theoretical study of the courses in the professional core areas, and complete the professional core competence and skills training, course simulation training and comprehensive simulation training in the campus training base.
Make full use of the training resources in the school, choose typical engineering buildings or equipment as teaching carriers, and carry out teaching activities. [3] Obtain a vocational skill certificate and implement it? Double certificate? System. In the fifth semester, I practiced in the production site for 3 weeks, and completed the career development course in 12 weeks to broaden my career horizons and prepare for possible job transfer and job hopping. The final 7-week graduation project can also be completed while the enterprise is doing production practice, and the topic can be selected according to the actual production of the post in the off-campus training base. Through practical operation, we can further master relevant knowledge such as project management and equipment maintenance, and obtain enterprise qualification certificate.
Or use the first 13 weeks to complete the professional school-enterprise cooperative development course in the order-making enterprise with the production technology of enterprise products. The third stage: the sixth semester, which completes the comprehensive vocational ability training. Students practice in off-campus training bases or order enterprises. Schools and enterprises set practice standards, organically combine employment and practice, and cultivate students' comprehensive professional ability in real professional situations.
Students sign internship agreements with enterprises, participate in enterprise production as employees, and receive on-site guidance from enterprise technicians. Full-time teachers are responsible for internship guidance and student management. During the internship, enterprises and schools jointly carry out quality education, cost education, confidentiality education and safety education for students, and cultivate students' professional ethics, professional skills and national defense spirit.
3 abstract
With the accelerating pace of teaching reform in higher vocational education, our understanding of the curriculum reform of HVAC engineering technology specialty in higher vocational colleges is gradually deepening. With the needs of society and enterprises, the talent training plan is revised in time, and scientific teaching evaluation and assessment methods are continuously explored, so as to train batches of high-skilled applied talents who meet the social requirements, have solid theory and excellent practical ability.
refer to
[1] Dai Luling; Figure Zhong Qiang. Construction of the Training Mode of School-enterprise Cooperation and Work-integrated Learning for Refrigeration Major in Higher Vocational Colleges [J]. HVAC Engineering Technology (Sichuan), 2009(05):89-92.
[2] lujun; Song Yongjun. Exploration on the running mode of HVAC engineering technology specialty [J]. China Science and Technology Information, 20 12(23): 160.
[3] Lin. Reform of air conditioning talents training mode in higher vocational colleges [J]. Education and Teaching Forum, 20 12( 18):27-28
Application of chemical engineering technology in chemical production
Abstract: With the continuous development of science and technology in China, chemical technology is more and more widely used in chemical production. As an important technology in chemical production, chemical technology can not only effectively save the time required for chemical production, but also improve the efficiency of chemical production. Therefore, after expounding the technical concept of chemical technology, this paper introduces the application of supercritical fluid technology, heat transfer technology and green chemical reaction technology in chemical production in detail, analyzes the existing problems of chemical technology at present, and puts forward corresponding countermeasures, so as to make chemical technology develop better in chemical production.
Keywords: chemical engineering technology; Chemical production; Application; analyse
In China, science and technology have always been an important production technology. With the rapid development of science and technology, chemical technology has been widely used in chemical production. Chemical technology is mainly to learn the relevant technologies that need to be adopted in the chemical production process. Its main purpose is to develop, design, manufacture and manage chemical engineering products. Because chemical technology can effectively improve the quality of products and work efficiency in chemical production, we pay more attention to chemical technology and constantly extend it to all fields of chemical production, so that chemical technology can be better developed, and then continuously promote China's economic development and scientific and technological development, making our living conditions more superior.
Elaborate the technical concept of 1 chemical engineering technology.
Nowadays, chemical products have become very common items in people's lives, such as medicines, food and daily necessities, as well as agricultural medicines and raw materials needed for factory production. Therefore, chemical technology has become a hot technology, and people pay more and more attention to it. Chemical engineering technology is a technology applied to chemical production based on the combination of chemical theory and related technologies. It uses chemical equipment to produce products on a large scale through a series of chemical reactions. In the process of chemical production, chemical reactants and equipment have very high technical requirements for engineering, and the advantage of chemical technology is that it can meet the requirements of chemical reactions, thus improving the quality of chemical products. In addition, chemical technology has a greater advantage, that is, waste treatment. This technology does not have a big impact on the environment as much as possible, and meets the current production requirements in China.
2 Application of chemical engineering technology in chemical production
2. 1 application of supercritical fluid technology in chemical production
The main content of supercritical fluid technology is to control a certain temperature and pressure, so that the required fluid is in a state between liquid and gas. The characteristics of this fluid combine the advantages of gas and liquid. Its low viscosity is similar to gas and its high density is similar to liquid, which leads to its strong diffusion ability, which is between gas and liquid. At the same time, it also has strong solubility and compressibility. When this technology is applied to chemical production, supercritical fluid can be obtained by controlling temperature and pressure, and its advantages can be used for energy saving. Nowadays, we apply this technology to more fields, such as polymer materials, composite materials, organic materials and inorganic materials.
2.2 Application of heat transfer technology in chemical production
Chemical heat transfer technology is mainly divided into two aspects, one is micro-scale heat transfer technology, and the other is strengthening heat transfer process. Firstly, micro-scale heat transfer is a heat transfer technology focusing on thermal convection, heat conduction and thermal radiation, which is discussed and studied from spatial scale and time scale. This technology has been widely used in micro-nano science and achieved good results, so people pay more attention to its application in chemical production. Strengthening the heat transfer process, the main focus is to continuously improve the heat transfer coefficient in the production process by debugging the heat exchange equipment, so that it can continuously release heat to the outside world. In order to strengthen the heat transfer process, it is necessary to increase the temperature difference between hot and cold fluids, which must improve the heat transfer coefficient by changing the heat exchange area, thus improving the heat transfer efficiency and realizing energy saving and consumption reduction in the chemical production process.
2.3 Application of Green Chemical Reaction Technology in Chemical Production
Usually, the products produced by chemical production will have some impact on our lives, so we need to adopt green chemical reaction in the chemical production process to prevent environmental pollution, which is a technical method to solve the pollution problem from the source. Green chemistry can only solve the harm caused by chemistry to people and the environment by using chemical techniques and methods combined with relevant knowledge. The main requirements are that reagents, catalysts, raw materials, products and by-products used in chemical production must be harmless to human beings and the environment, and at the same time, they must be environmentally friendly.
For example, in the use of green and non-toxic raw materials, biological raw materials can be used instead of petroleum raw materials. For example, in the production process of chemical product nylon, benzene-containing petrochemical raw materials were originally used. We changed their raw materials into biological raw materials, and they can also be made into nylon, which not only protects the environment, but also protects the human body from harm. In addition, this technology has also played a huge role in the production of green food. Green food is very beneficial to human body, and chemical agents are generally prohibited in its production process, which not only reduces the harm to human body, but also reduces the impact on the environment.
However, the cost of producing green food is high. In order to reduce the cost and improve the quality, we can combine chemical technology with biotechnology, develop gene technology and improve and promote the yield and quality of crops. The combination of biotechnology and chemical reaction technology can be fully utilized in the follow-up process.
3 Problems existing in chemical engineering technology today
3. 1 chemical technology needs to be further improved.
At present, chemical technology in China is widely used, but there are still some shortcomings. The application of dropwise condensation in industry is still not well implemented, because the condensed droplets can not be preserved for a long time after obtaining dropwise condensation, so we should do further research on this issue to solve this problem. Let China's chemical technology develop better and people have better living conditions.
3.2 lack of chemical engineering and technical personnel
Another serious problem in chemical engineering is the problem of technical personnel. Only by using talents with strong chemical professional knowledge can the quality of chemical production be better improved. However, there is such a problem in China now. The general technical ability and professional ability of chemical workers are not strong, mainly because of China's education system. Contemporary college students have a good grasp of theoretical points, but the practical operation is seriously lacking, which leads to the shortage of technical talents, thus affecting the progress of chemical technology.
4. Put forward the countermeasures of developing chemical engineering technology.
4. 1 continuous improvement of chemical engineering technology
With the continuous development of science and technology in China, chemical engineering technology will become more and more advanced. We should constantly update our technology to adapt to the development of social science and technology. We should constantly add new technologies while consolidating traditional chemical technologies, and discard the disadvantages, so as to achieve better development of chemical engineering technology.
4.2 Training chemical technicians
The importance of talents is obvious to all, and chemical technicians play a vital role in the development of chemical industry. Therefore, for the better development of chemical engineering technology, we pay attention to cultivating chemical technical talents. Chemical production enterprises can cooperate with relevant professional colleges and universities, so that students with professional counterparts have the opportunity to go to the production factory for relevant internship operations, and cultivate technical talents with solid theoretical knowledge and certain operational ability to work.
5 conclusion
The wide application of chemical technology in chemical production not only promotes the development of social economy, but also improves people's living standards. Through the continuous influx of technology and talents, China's chemical technology will have a better development.
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