Determination of equipment import and export dimensions
Thread Content
I would like to ask the experts on this forum: how should the dimensions for equipment import and export be determined? Such as heat exchangers, distillation towers, heating furnaces, etc. Is it based on the consistent size of the inlet and outlet pipelines, or are there specific requirements for the inlet and outlet flow rates of certain devices? Waiting online, please~
The pipe port size must be determined based on design principles, calculation reports, etc.! Pipelines simply connect devices to each other to meet functional requirements. Choose the pipe based on the equipment, rather than choosing the equipment based on the pipe. There are also cases of pipe diameter changes outside the equipment interface.
First of all, I am very grateful for your prompt response. Since I have little experience with this type of process, my knowledge is quite limited. May I understand it this way: taking the heat exchanger as an example, based on the relevant process parameters, the optimal model of heat exchanger is selected, and the inlet and outlet pipe diameters are also determined at the same time?
I don’t understand the craftsmanship; I’m just talking nonsense. I think what you say is reliable. According to the design, a schematic diagram is required first; what is the purpose of the design? ； Then select the equipment; its processing capacity must meet the requirements of the process ； Once the equipment is selected, the pipe connections are determined as well ； Next, perform the flow rate calculation for the pipeline. If such a large flow rate isn’t necessary, then reduce it by adding a pipe reducer. In some cases, the pipe connections of the equipment are in non-standard sizes and need to be converted to standard sizes.
:Handshake, thank you so much; it seems like we’ve avoided having to take that detour. :lol
The “Process Conditions Table” produced by the process department should include the locations of the equipment’s interfaces and pipe connections
It is normal to change the diameter of pipelines outside the equipment interface, but it usually involves increasing the diameter, mainly to reduce pressure for subsequent uses as well as to meet the requirements of the equipment itself
Once the capacity and processing volume of the equipment are determined, you can calculate the feed rate of the equipment (the discharge rate is calculated in the same way). Then, based on the typical flow velocity, the size of the pipe outlet is calculated.
The entire plant is divided into different operating conditions, which are calculated using HYSYS simulations. And it serves as the input condition for the PID diagram. Together with the **specification requirements for the equipment, all parameters of the basic equipment have been determined, including those related to the pipe connections.
Feel free to come and communicate often; there’s no need to worry about making mistakes – what’s concerning is if you don’t speak at all. :handshake