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Shell side pressure 25MPa, inlet temperature 25℃, outlet 550℃, medium: water. Pipe side pressure is 25MPa, inlet temperature is 625℃, outlet temperature is 75℃, medium: Hydrogen, carbon monoxide, carbon dioxide, methane and other mixed gases. question: 1. Structural form of heat exchanger. 2. The material of the pressure components of the heat exchanger and the thickness of the cylinder wall.
The structural form of the heat exchanger can be selected as U-shaped tube heat exchanger. The applicable situation is tube. In situations where the temperature difference between the shell side is large, high temperature, and high pressure, the material of the pressure component needs to be selected according to the properties of the working medium, and the wall thickness of the cylinder needs to be designed and calculated.
First of all, the poster has a problem with waste heat utilization. I would like to use several pieces of equipment to recycle the waste heat in steps instead of integrating it into one piece of equipment. Secondly, it is too difficult to find a piece of equipment that can meet the poster's requirements. As for the recovery form I envisioned, I can refer to the waste heat recovery of flue gas. This is more economical and practical.
It is for graduation project. If it is used in industry, it is best to ask professional manufacturers. They are quite authoritative. If it is for graduation design, shell and tube heat exchangers are generally used. The pressure and temperature are very high, and the materials should be selected better. I suggest you look for a heat exchanger design manual and read it. There are many in the forum.
"Shell side pressure 25MPa, inlet temperature 25℃, outlet 550℃, medium: water. Pipe side pressure is 25MPa, inlet temperature is 625℃, outlet temperature is 75℃, medium: Hydrogen, carbon monoxide, carbon dioxide, methane and other mixed gases. question: 1. Structural form of heat exchanger. 2. The material of the pressure components of the heat exchanger and the thickness of the cylinder wall. " Sir, is there something wrong with these parameters? The shell side is 25MPa, the inlet temperature is 25℃, the outlet is 550℃, and the medium: Water, you use water gas heat to generate 550℃ saturated water vapor, right? How can the steam pressure reach 25MPa?