The Research Of Methanol Synthesis Reactor Manufacture Technology

Pressure vessels are pressure-retaining equipments which are widely used in almost all the areas of industry production,scientific research and human life.The production of pressure vessels play a great role in the national economy, Its application and importance increase by days.The manufacture technology of pressure vessels involve the areas of metallurgy,mechanical manufacture,welding,corrosion and corrosion protection,non destructive testing,safety protection and so on.So it needs the cooperation of different area,different subject,different aspect to work together.The methanol synthesis reactor is one of the most important equipment in the coal chemical industry.With a complex structure,it is difficult to manufacture,almost all the key manufacture technology of the pressure vessels is involved here, for example:ylinder fabrication,the precaution of deformation when using overlay welding on the tube-sheet, final assembly and ammonia leakage test.Making studies on the manufacture technology have great means in the coal chemical industry.In the paper we set down the single cylinder fabrication plan and the precaution of deformation when using overlay welding on the tube-sheet, it was through certain technical methods mainly by precaution. Talking about the final assembly, we determine the last circular seam, assemble the support plates after the equipment has being two big parts, adjust the position of two parts to make sure coaxial, and we also pay attention to the sequence of tube-inserting. All of these measures ensure the final assembly can smoothly go. The ammonia leakage test is a strict way to check the vessels.We set down the process specification and solution plan.The successful manufacture of the methanol synthesis reactor prove that our plan is feasible and works well. It also accumulate valuable experience for our company when we manufacture such big and high precision shell-and-tube heat exchangers.And the localization of big and high precision equipments manufacture in our country improve on a new level.