Regarding heat exchanger process design issues
Thread Content
Since I have never done the process design of a heat exchanger before, I would like to ask you all here what steps are generally included in the process design of a heat exchanger, and where should I start? For example, if you want to design a gas-liquid heat exchanger, the flow rate of the gas and the temperatures of the gas and liquid phases before and after heat exchange are known. How should you design it?
I suggest you take a look at the principles of chemical engineering first. There are explanations and I recommend the Tianda version.
You can find a lot of information by searching on the Internet. Make good use of topic searches and don’t rush to post questions.
That is to calculate the heat and resistance, and the other is to determine the position of the tube seat.
If you want to calculate by hand, the book "Principles of Chemical Engineering" has special examples and specific instructions for calculating heat exchangers. If you want to simulate calculations, aspen, htri, htfs, and hextran can all calculate heat exchangers. It is easy to get started. You will understand if you look at the examples provided by the program.
Heat exchanger calculations are relatively simple. Go read the 03 edition of the "Chemical Process Design Manual" and you will basically understand it after reading it.
Heat exchanger is an indispensable device to realize heat exchange and transfer in the chemical production process. There are often some highly corrosive and oxidizing materials in heat exchange. Therefore, the materials used to manufacture heat exchangers are required to have strong corrosion resistance. A complete heat exchanger should meet the following basic requirements when designing or selecting: (1) Reasonably realize the specified process conditions ； (2) The structure is safe and reliable ； (3) Easy to manufacture, install, operate and maintain ； (4) Economically reasonable. To make this design, you must first know your steam temperature, what is the pressure of saturated water vapor, and how much water should be heated from what temperature to what temperature. These are mostly basic parameters. I don’t know what the water heated by your heat exchanger is used for. Heating water or process water.
:lol You can refer to the "Cold Exchange Equipment Process Calculation Manual"
Use plate heat exchangers, if not, you can continue to connect them in series.
This book is really good. I was grateful to him when I first wrote it. . Haha, it is recommended to refer to this information. .