Graduation design is the homework of every college student, which can improve students' abilities in all aspects. The following are three templates of graduation design task book I collected. Welcome to read the reference!

Graduation design task template (1) 1. Topic: Liquid level control system based on S7-200PLC.

Second, the instructor: Zhou Ying

Three. Design content and requirements

1, project overview

According to the process and requirements of liquid level control in a factory, analog control is realized. The technological process is as follows: with the pump as the power, the water is pumped from the low-level pool to the high-level pool to realize the automatic control of the liquid level of the high-level pool, and the graduates graduate with the design task template. The specific design content is that Siemens S7-200PLC is used as the controller to realize the constant value control of single-volume liquid level height, and the monitoring interface of single-volume liquid level control system is established through Wincc configuration software to realize real-time monitoring.

2, design content and requirements

1) Design content:

1, whether a system can achieve the expected control effect, the mathematical model of the system is very important, which is directly related to the correctness of the control results.

2. Whether the liquid level pump can realize accurate control in the liquid level control system directly affects the control effect.

3, control, scheme selection, a suitable control scheme will make the system more perfect, so scheme selection is also very important.

4. Setting control parameters, a system has an established scheme, but if the parameters are set incorrectly, it will fall short.

2) Design requirements:

1, taking the water tank and the comprehensive control device in the process of PCS4000 in the 407 training building of our hospital as the controlled object, taking PLC as the controller, static pressure gauge as the detection element and electric regulating valve as the actuator, a single tank and single closed-loop control system is formed to realize the constant control of the water tank level.

2.2, the PLC controller adopts PID algorithm, and the control performance meets the requirements; The overshoot is 20%, and the steady-state error is ≤ 0.1; Adjustment time ts≤60s；;

3. Set and display the liquid level given value, measured value and controller output value in real time on the configuration measurement and control interface; Real-time display of real-time curve of liquid level given value, real-time curve of liquid level measured value and real-time curve of PID output value;

4. Choose the appropriate tuning method to determine the PID parameters, and can change the PID parameters in real time on the configuration measurement and control interface;

Four, design reference books:

Electrical control and PLC application, factory electrical control equipment, electrician manual, computer monitoring system design and debugging-configuration control technology, Siemens PLC user manual and programmable controller application technology.

Verb (abbreviation for verb) The content of the design description.

1, cover

2. Contents

3. Summary (about 200~400 words, in both Chinese and English)

Step 4 introduce

5. Text (design scheme and selection, design scheme principle, calculation, analysis, circuit simulation and demonstration, circuit production, circuit hardware debugging, software programming flow, software and hardware circuit debugging, circuit operation description and characteristics, etc.). )

6. Conclusion

7. thanks

8. Appendix (references, drawings, bill of materials, etc.). )

Six, graduation design process arrangement

Week 1 week: scheme design discussion, teacher guidance;

Weeks 2~3: First draft of subsystem scheme design, component selection, circuit schematic drawing, circuit simulation, etc.

Week 4~5: Revise the design scheme and circuit principle according to the circuit simulation results, purchase electronic components, draw PCB printed circuit board diagram according to the package size of the purchased components, make PCB board, weld the circuit, debug and maintain;

The sixth week: write debugging program, carry out joint debugging of software and hardware, and write the first draft of graduation design document according to the actual production situation;

The seventh week: self-examination, discussion and improvement of the first draft of graduation design documents, counseling and defense;

Week 8: Grade evaluation and defense of graduation design book (check the functional indexes of the designed physical circuit in strict accordance with the design requirements when defending).

Seven, graduation design defense and thesis requirements

1, graduation design defense requirements

One week before the defense, each student should submit the necessary materials such as graduation design, physical circuit, circuit simulation or circuit debugging report to the instructor for review, and instruct the instructor to write a review opinion.

Students should write a written outline of the self-report part when defending, including the task, purpose and significance of the subject, the original materials or references used, the basic content and main methods of design, conclusions and evaluation of the results.

The defense team asked questions about the key issues of the discipline, basic theories, knowledge, design and calculation methods, experimental methods and testing methods closely related to the discipline, and appraised the students' independent working ability and innovation ability.

2, graduation design thesis requirements

Text requirements: the manual requires printing (except drawings) and cannot be handwritten. The words are fluent, the language is fluent, the typesetting is reasonable, there are no typos, and plagiarism is not allowed.

Drawing requirements: Drawing according to engineering drawing standards, with neat drawings, reasonable layout, uniform line thickness, smooth arc connection and standard dimensions, and text notes must be written in engineering characters.

Requirements for curves and charts: all curves, charts, circuit diagrams, program block diagrams, schematic diagrams, etc. It is not allowed to draw by hand, but must be drawn according to national standards or engineering requirements.

Graduation design assignment template for graduates (2) Graduation design assignment for petrochemical department

Design topic: process design of heat transfer mode and related equipment design in chemical production

Design contents, objectives and requirements

Design objectives:

According to the working practice or chemical production practice, the typical process fluid in a certain link is selected, and the process flow design and typical equipment selection are carried out for its heat exchange mode. Through graduation design, I am familiar with the selection principle of fluid heat exchange mode in chemical production, the design and selection of heat exchanger, evaporator and heating furnace and the key points of operation.

Design content:

1. Master the basic requirements and main contents of the design of process fluid heat exchange mode in chemical production, and master the design principles.

2. Demonstrate the design scheme, determine the design flow and method, and master the material balance and heat balance in the chemical process, as well as the design principles, methods, operation and maintenance points of the main process equipment (heat exchanger, evaporator, heating furnace, etc.). ).

3. Basically master the determination method and control scheme of material parameters (such as temperature, pressure, flow rate, etc.). ) technology and equipment.

4. Requirements and standards for drawing material flow chart, process flow chart with control points and main equipment diagram.

Design requirements:

1. According to the content of graduation design (thesis) task book, conduct research in groups, consult Chinese and foreign materials, implement the research content, formulate research methods, steps and measures, and write an opening report with no less than 1500 Chinese characters.

2. Report the progress of graduation design (thesis) to the instructor in time.

3. The writing of graduation design (thesis) should conform to the requirements of "Writing Specification for Graduation Design (Thesis) of Hunan Petrochemical Vocational and Technical College". The number of words in the paper should be more than 15000 words.

4. All graduation design contents must be uploaded to the personal space of the World University City as required, and each group leader is responsible for the inspection and supervision of the personal space of the group.

References:

[1] Fluid transport and heat transfer, edited by Li XX

[2] "Chemical Unit Operation Technology" edited by Wang XX

[3] Handbook of Chemical Process Design (3rd Edition) (Volume I and Volume II), Chemical Industry Press, 2003.08.

[4] Handbook of Chemical Engineering (2nd Edition) (Volume I and Volume II), edited by XX et al., Chemical Industry Press, 1998.6438+065438.

[5] Fundamentals of Chemical Equipment and Machinery, edited by Dong XX, Chemical Industry Press, 2003+0.

[6] Chemical Data Guidance, edited by Wang XX, Chemical Press, 1995.438+00.

[7] Chemical Engineering Drawing, edited by Wei XX, Chemical Industry Press 1994.05.

Template of graduation design task book for graduates (III) I. Basic tasks and requirements:

1, professional requirements: analyze the future investment potential of individual stocks by using the macro policies, industry sectors, technical indicators and financial indicators of the major studied;

2. Typical requirements: the selected stocks must meet the needs of investors' value appreciation and be universal and representative;

3. Feasibility requirements: the designed value analysis report is operable and can realize the added value of customers;

4. Authenticity requirements: the industry analysis data, market data and financial statements of stocks are all from the public data of Shenzhen Stock Exchange and Shanghai Stock Exchange;

5. timeliness requirements: according to the unified arrangement of majors, complete the phased tasks with good quality and quantity;

6. Integrity requirements: According to the standard of stock value analysis, the stock value analysis report must be a complete report;

7. Guiding requirements: The designed stock value analysis report can guide customers to realize asset appreciation to a certain extent.

Second, the work content and schedule:

1, topic selection:

2. Write the opening report:

3. Collect data and implement the plan;

4. Complete the first draft of the design specification:

5. Complete the revised draft of design specification:

6. Finalize the design specifications:

7. Reply:

Three. Relevant materials to be provided for defense:

1. Complete the graduation project;

2. Graduation defense PPT

3. Relevant certification materials for participating in graduation internship (space materials such as graduation internship week records, internship photos and internship summaries);

4, graduation practice unit identification (unit seal, rating above);

5, internship unit questionnaire;

6. Questionnaire issued by the school;

7. Approval of graduation design tutor

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