A Report on the Experiment and Reflection of the Chemistry Technology DrawingThe following is an example of a chemical process drawing experiment summary and reflection report:
** I. Experiment summary **
1. ** Experiment objective and background **
- The chemical process chart was of great significance in chemical production. It was a tool that accurately represented each link, equipment, material flow, and energy flow in the chemical production process. Through the experiment, the author deeply understood the drawing principle, representation method and its guiding role in chemical process design and operation.
2. ** Review of the experiment process **
- ** Theory Learning Stage **
- First, he learned the relevant theoretical knowledge of the chemical process drawing, including the symbol representation of various equipment (such as reaction kettle, heat exchange, pump, etc.), the line type of material pipeline (such as solid line representing the main material flow, dotted line representing the auxiliary material flow, etc.), the marking method of instrument control points, etc.
- Master the differences and connections between different types of chemical process drawings (such as process flow diagrams, piping and instrument flow diagrams, etc.), and understand their application in different stages of chemical projects (preliminary design, detailed design, construction, etc.).
- ** Drawing Practice Stage **
- According to the given chemical production process description, he began to draw the process flow chart. During the drawing process, the relative position of each equipment was carefully determined to ensure that the direction of the material flow was reasonable and clear. For example, the raw materials entered the reaction kettle from the feed port, and the products after the reaction entered the subsequent separation equipment. The connecting pipes between each equipment were accurately drawn, and the key parameters such as the name, flow rate, temperature, and pressure of the materials were marked.
- For the piping and instrument flow chart, in addition to the above contents, it was also necessary to accurately mark the installation location and control function of various instruments (such as thermometer, pressure gauge, flow meter, etc.). When drawing the instruments, they followed a unified symbol standard to ensure that the entire drawing was standardized.
- ** Analysis Stage **
- After the completion of the drawing, a comprehensive inspection of the chemical process drawing was carried out. The inspection contents included whether the equipment symbol was correct, whether the material flow and energy flow were balanced (that is, the amount of material and energy entering a certain equipment was equal to the amount of output within a reasonable error range), and whether the instrument markings were complete and accurate.
- He compared his own artwork with the standard examples to find the differences and shortcomings, such as the drawing of some lines was not standardized, the layout of the equipment could be more compact and reasonable, and so on.
3. ** Experimental results **
- Successfully drew a chemical process drawing that met the basic requirements, including process flow diagrams and piping and instrument flow diagrams. The main equipment, material flow, instrument control points, and other elements in the chemical production process were clearly displayed in the map.
- Through the experiment, he had a deeper understanding of the drawing specifications and design ideas of chemical process drawings. He could accurately use relevant symbols and annotation methods to express complex information in the chemical production process.
** 2. Reflection Report **
1. ** Problems **
- ** Drawing accuracy **
- When drawing some complex equipment (such as a reactor with multiple entrances and exits and internal structures), the symbols were not precise enough, which might lead to misunderstandings about the functions and operating principles of the equipment.
- The balance calculation of material flow and energy flow was not detailed enough, and there were small errors in the flow distribution of some branch pipes, which might affect the feasibility and economic evaluation of the entire process.
- ** Drawing efficiency **
- Due to the lack of proficiency in certain drawing tools (such as professional chemical engineering drawing software), he spent more time adjusting the size, proportion, and line style of the drawing process, reducing the overall efficiency of the drawing.
- Before he started drawing, he didn't plan the entire process sufficiently, which led to the need to constantly modify the layout of the equipment and the direction of the pipeline during the drawing process, wasting time.
- ** Integration with actual production **
- When drawing the process drawings, more attention was paid to the specifications and theoretical accuracy of the drawings, and some special situations in actual production (such as the maintenance space of the equipment, the operation convenience of the operators, etc.) were not considered.
- They did not fully consider the changes in the process drawings under different production scales. For example, in small-scale experimental devices and large-scale industrial production devices, the selection and layout of equipment may be very different, but this difference was not well reflected in the drawing process.
2. ** Modification measures **
- ** Increase drawing accuracy **
- To strengthen the in-depth study of the structure and functions of various chemical equipment, by consulting more equipment manuals and practical cases, to accurately grasp the symbol representation method, and to be able to use it flexibly according to different process requirements.
- During the calculation of material flow and energy flow, a more rigorous calculation method was used. The input and output of each link were calculated in detail, and the corresponding calculation forms were established to record it for easy inspection and verification.
- ** Increase drawing efficiency **
- To strengthen the study and practice of drawing tools, master their various functions and shortcut keys to improve the speed and accuracy of drawing.
- Before drawing, he had to make a detailed drawing plan, including the preliminary plan of the equipment layout, the general direction of the material flow and energy flow, and then gradually refine it to avoid unnecessary modifications.
- ** Strengthened link with actual production **
- In the process of drawing, the layout and operation process of the actual chemical production workshop were referred to. The operation space of the operators and the maintenance channels of the equipment were taken into consideration to make the drawn process drawings more in line with the actual production needs.
- Study the characteristics of the chemical process under different production scales, learn how to adjust the selection of equipment, the diameter and layout of the pipeline according to the production scale, so that the process map can better adapt to the chemical production of different scales.
<a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Was Daddy planning to abuse her?If she was beaten by her father, this kind of behavior could be considered domestic violence. Family violence refers to physical and mental abuse committed by family members through beating, binding, maiming, restriction of personal freedom, frequent abuse, intimidation, etc. In China, domestic violence was a serious problem. The victims could protect their rights and interests through legal means, such as calling the police in time to preserve evidence and seeking legal aid. At the same time, domestic violence should not be suppressed because of the concept of "family ugliness should not be publicized". It should be stopped according to law.
The novel," Deaths from domestic violence, I went crazy from the bullet comments ", is equally exciting. Everyone is welcome to click and read it!