During the welding process, the welding line energy should be strictly controlled within the line energy range of the process evaluation, especially careful not to exceed the line energy of the process evaluation on the line.
Products of Welding inspection in large air separation unit
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Liquid accumulation stage essentials: ensure that the two expansion machine pressure before the machine is stable, maintain the highest permissible speed, so that it runs at full load. When the condensing evaporator liquid oxygen liquid surface, should promptly close the small oxygen flow to the normal flow of about 1/3, control the upper tower pressure, and gradually close the small liquid nitrogen throttle valve to full shutdown. Timely adjust the amount of air into the tower, to ensure that t...
(1) In the box combination installation, the combined part of the clean air chamber should pay attention to.
(2) welding form must be the net air chamber around the welding of the sealing welding in small air separation unit(i.e. full welding), no intermittent welding.
(2) If the combination of gasket in the middle of the chamber is used, the bolts and nuts of the combination should be tightened. and sealed by injecting glass glue at the seam of the splice.
(3) When installing the filter...