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Piping technology(1)

Source:Lucy Xie Time:2016-7-19 17:33:12

1. Engineering subfields

Generally, industrial piping engineering has three major subfields:

(1) Piping material

(2) Piping design

(3) Stress analysis

Industrial stainless steel welded pipe making machine (tube mill )is equipped with uncoiler,forming&welding machine,weld bead rolling machine,weld bead grinding machine,first sizing machine,bright annealing machine,sizing and straightening machine,pipe cutting machine,unloading machine.

 

2. Stress analysis

Process piping and power piping are typically checked by pipe stress engineers to verify that the routing, nozzle loads, hangers, and supports are properly placed and selected such that allowable pipe stress is not exceeded under different loads such as sustained loads, operating loads, pressure testing loads, etc., as stipulated by the ASME B31, EN 13480 or any other applicable codes and standards. It is necessary to evaluate the mechanical behavior of the piping under regular loads (internal pressure and thermal stresses) as well under occasional and intermittent loading cases such as earthquake, high wind or special vibration, and water hammer.[3][4] This evaluation is usually performed with the assistance of a specialized (finite element) pipe stress analysis computer programs such as CAEPIPE[5] and CAESAR.

In cryogenic pipe supports, most steel become more brittle as the temperature decreases from normal operating conditions, so it is necessary to know the temperature distribution for cryogenic conditions. Steel structures will have areas of high stress that may be caused by sharp corners in the design, or inclusions in the material.

3.Materials

The material with which a pipe is manufactured often forms as the basis for choosing any pipe. Materials that are used for manufacturing pipes include:

(1)Carbon steel

(2)ASTM A252 Spec Grade 1, Grade 2, Grade 3 Steel Pile Pipe

(3)Low temperature service carbon steel

(4)Stainless steel

(5)Nonferrous metals, e.g. cupro-nickel

(6)Nonmetallic, e.g. tempered glass


Guangdong Shunde Seko Machinery & Technology Co.,Ltd.

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