Assembly method for ensuring equipment overall coaxiality in pressure vessel for chemical industry

A pressure vessel and assembly method technology, applied in the field of assembly to ensure the overall coaxiality of equipment, can solve problems such as increasing manufacturing costs, affecting delivery, and difficulty in meeting requirements, so as to improve assembly accuracy, ensure quality and manufacturing efficiency, and simultaneously The effect of axis satisfaction
CN103170773AActive Publication Date: 2013-06-26SHANGHAI BOILER WORKS
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI BOILER WORKS
Publication Date
2013-06-26

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Abstract

The invention provides an assembly method for ensuring equipment overall coaxiality in a pressure vessel for chemical industry. At first, U-V-shaped grooves are processed at two ends of each tube sections to be assembled, and then reference surfaces are processed below V-shaped grooves of the U-V-shaped grooves on the inner wall of the tube sections, an axis of each tube section is simulated according to the reference surfaces of two ends of the tube section as measuring basis, and when tube sections are assembled, the axis of each tube section is located on the same straight line. According to the assembly method for ensuring equipment overall coaxiality in the pressure vessel for the chemical industry, defects of the prior art are overcome, overall coaxiality of the equipment can be ensured, assembly accuracy is improved, and product quality and manufacturing efficiency are guaranteed.
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Description

technical field

[0001] The invention relates to an assembly method for ensuring the overall coaxiality of equipment in a chemical pressure vessel, and belongs to the technical field of assembly of chemical pressure vessels. Background technique

[0002] For large-scale tower equipment in chemical equipment, such as ammonia synthesis tower, methanol reactor, etc., due to the very high assembly requirements of the internal parts and the shell, the shell is relatively long, and the internal parts are generally hoisted into the shell as a whole In order to ensure that the internal parts and the shell can be installed in place accurately and smoothly, this puts forward high requirements on the overall coaxiality of the equipment shell.

[0003] If the equipment shell adopts a forged welding structure, then the coaxiality of the shell is relatively easy to ensure; if the equipment shell adopts a plate welded structure, it is more difficult to ensure the coaxiality of the shell. F...

Claims

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