For beginners, I would like to ask: what books should I read if I want to understand the working principle of systems in piping diagrams that consist of various types of valves?
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Hello everyone. I’m a beginner who isn’t majoring in chemical engineering; I’m learning on my own. I would like to know what books I should read to understand systems in piping diagrams that consist of various types of valves For example, the condensate discharged from a certain container must first pass through two paths (one path consists of a plunger valve, and the other path consists of a check valve), and then these two paths merge into one. I don’t understand why it has to be arranged this way – what is the function of each valve? There are also pumps, valves, instruments, and complex combinations among pipes, as well as multiple circuits and valves, which make it difficult to understand. What books should I read in order to understand these things? What courses to study?
It is recommended to first learn how to read chemical process piping diagrams; afterwards, you can take a look at chemical engineering drawing standards, as there seem to be legends included in those
Oh, may I ask what the title of the corresponding book is? \"Reading Chemical Process Piping Diagrams\"? \"Chemical Engineering Drawing\"?
First, understand the principle of the process, then ask experienced workers for guidance more often, and gradually you will be able to understand it
It’s actually quite simple. First, look at the thick solid lines – the main processes are usually indicated by these (pay attention to the codes or names of the key components). Next, consider the auxiliary processes, such as the secondary lines connected to the equipment or the pipelines used for purging; these processes are generally marked with thin solid lines. Finally, take a look at the instrument control diagrams – these have special symbols, and you can also check the legend first.
First, study *\"Chemical Process Piping Diagrams\" and \"Chemical Engineering Drawing\", then get familiar with the processes – you’ll understand it by comparing it with the actual site
I think the main problem the original poster is facing isn’t understanding the drawings, but rather a lack of knowledge regarding the principles of the process. In the example you gave, only the line with the plunger valve is a secondary line; the line that includes the plunger valve, the steam trap, and the globe valve is the main line. Under normal conditions, the secondary line is closed. When the steam trap malfunctions, it’s possible to use the secondary line for auxiliary regulation, or simply close the valves before and after the steam trap and rely solely on the secondary line for regulation. This type of piping arrangement is quite common where control valves are installed. I recommend that you read this book: http://bbs.hcbbs.com/viewthread.php?tid=31315&highlight=%BB%AF%B9%A4%D7%B0%D6%C3%CA%B5%D3%C3%B2%D9%D7%F7
I’ve learned it; I need to learn it too
Thank you all for your enthusiastic responses; I am truly grateful!
I found the book mentioned by Eowen, titled \"Guide to the Operation and Use of Chemical Processing Equipment,\" and I’m reading it now. I also want to ask: regarding things like piping and valves, what specific principles, functions, and operations should I learn? For example, around a pump, there are 4 or 5 circuits that wind back and forth, forming loops; and each of these circuits has N different combinations of valves. In my ordinary understanding, there is just one inlet and one outlet, with a valve installed at each. So why is it actually so complicated in practice?
I’ve learned it; I need to learn it too
I’m also a beginner; I’ve found the suggestions from others to be very helpful. At the same time, I would like to offer my own opinion: since many actual drawings are created using CAD, including those for valves, pumps, flanges, etc., I think it’s necessary first to understand the symbols used in instrumentation and how to draw them. After that, one needs to be familiar with the different types of lines, whether they are solid or dashed. By knowing the names of the instruments, it’s usually possible to figure out what they are used for. As for why they are installed in a certain way, that requires referring to books on relevant principles, as well as books on chemical engineering and mechanical principles. By the way, does anyone have a comprehensive guide to CAD drawing techniques for instruments? I’ve been looking for one but haven’t found it yet