Piping & Instrumentation Diagram from scratch
Vložit
- čas přidán 3. 07. 2024
- For those who are new to Piping & Instrumentation Diagrams, I wanted to draw one from scratch to show just some of the different elements and intricacies one may find. We draw a basic storage tank and the lines & instruments around the tank. Apart from the drawing, there's also chat about general process principles that are incidental to the drawing.
00:00 Intro & title block
02:30 Equipment numbering
04:57 Line numbering, pipe class, fluid code & insulation
10:01 Flanges & nozzles
11:49 Isolation valves & reducers
13:41 Outlet line
15:00 Temperature measurement (thermocouple)
17:56 Temperature alarm
18:30 Level measurement (differential pressure cell)
20:41 Level control
21:45 Multiple instruments & middle of 3 control
24:38 Level alarms & safety interlocks (cause & effect)
28:42 Drain, vent & manhole
30:07 Final thoughts
Process with Pat is the place to come for perspective and to ask stupid questions. I want you to leave more knowledgeable, confident, motivated, and most importantly, curious. I also want to invigorate a field that seems tired and uninspiring, at least if you get your perspective from internet forums. These are not lectures. This is a place for you to leave thinking “Oh! That’s why...”
This channel is not only for chemical engineers - anyone who works with processes should be able to find something of value here.
#ProcessEngineering
#ChemicalEngineering
#ProcesswithPat - Věda a technologie
Loved the disclaimer XD... btw great content Pat!
Well done! As an Electrical Control Design Engineer, I think it's part of our duty to explain whether we use a transmitter, a transducer or something else, and to show how they connect to the control cabinet, the HMI or other indicators. We usually divide the project design among different departments. So it's great that you can give a complete overview of the process!
Came from reddit. Stayed for the beauty of explanation. Amazing job. Thank you, Pat. Keep up the good works. Waiting for your next videos.
Really kind words. Thanks! And don't hold back on criticism either - I'm sure there's loads that can be better.
Thanks for putting this together. Expecting more of your videos.....cheers
Great video. Simple, succinct and supreme explanations
Excellent presentation as usual. 👍
Thoroughly explained thank you 👍🏻
Great job on explaining this.
Beautiful.
Best video on the subject by far.
Thank you for an informative presentation nicely done.
Excellent!
Very detailed video..Easy to understand. 🥰
Really high quality stuff and very useful too.
That’s really kind of you, but I did do it on a scruffy piece of paper! Thank you though.
great work and well presented thanks
It’s sad that I’m graduating with an Instrumentation Associates in 4 weeks and this has been the most useful information I’ve watched/gathered compared to my lectures and professors.
Thanks, you are just great.
very good illustration thank you
Thank you so much it's a very very useful video to understand the PID
Great video pat, clear and easy to understand 👍
Thank you for the best explanation ever about P&ID's, you made my day , I have an interview and I'm feeling more confident for that t day.
Very nice.
Thank You ❤
I nearly wanted to cry watching this. I graduated in 2015. The oil dip did its part besides the limited application of Chemical Engineering and my visa status and forced constant travelling. I'm now a labourer and the mental pain is by far worse than the physical burden. I love engineering, and chemical plants, so much but I will be happy with a job that respects I have a brain to use. I'm indecisive Wether I should continue studying chemical engineering or start something else that's less enjoyable for me but offers higher employablity.
Heart-breaking man. I hope your passion carries you through it, but being dealt a bad hand is tough. Fingers crossed that you find love in what you do.
putting a drain on the bottom of the tank is tricky unless the tank is suspended (using legs or a skirt). So you might want to consider showing the drain coming in the side with a dip tube. If you really can put the drain on the bottom of the tank, then sometimes showing grade and the support method helps to clarify the situation since a skirt can create a flammable confined space hazard. Speaking of dip tubes, your feed into the tank, might also benefit from a dip tube (which will reduce static hazards), but be sure to provide a syphon break in the feed line to prevent accidental reverse flow.
I think a pressure gauge on the tank might be a good idea too.
Excellent video! As a new project engineer working with an interdisciplinary team to design and construct a new plant I need a working knowledge of all disciplines and your videos have been of great help.
Nice! Glad to hear they help! Best of luck in the new position…
Great video. Thank you so much. May you please do a video on how to approach chemical engineering design from scratch. Looking forward to it ❤️🙏🏽
Legend
I'm a retired research chemist of 35 years. I found that I should have gone unto Ch.E because I was really interested in the process more than the chemistry.
Hi if you have worked in the usa,
How is the dow chemical company in the usa? Does it a good company?
Relief Valve? ... Great job of a documenting an asbuilt P&ID.
I think you should have used a dash-dot type line (software link) between the LIC and the LAHH instrument balloons.
Pat can you also do a video on control loops (eg. UXY and UX on UV ) etc.
Ah yes, the good ol' "XZXHL" (or insert any other random assortment of the last 5 letters of the alphabet here...)
To be honest with you, I think that when there are limit switches and things on valves things get a bit haywire, and it would be a lie if I told you I was totally clued-up on it. I don't want to mislead anybody. Even in doing something as basic as this introduction, there are so many iterations of how to show something as basic as an an interlock, that I'm a little sceptic about coming across as an authority on it.
I'll keep this topic on the "to-do" list, but at this stage I'm not sure I could compile anything confidently! I will see whether I can find someone who can shed light on the topic...
I think PFD is the basis to build P&ID...