Nitrogen - Dear Air Separation

Nitrogen

As an inert gas, nitrogen can be used to protect, transport and seal inflammable, explosive, corrosive, oxidizing and boring, so as to ensure safety in production. The application of nitrogen in petrochemical enterprises includes the production of reforming and hydrogenation units in refineries, which needs nitrogen as protective gas and replacement gas. There are also some large units of seal gas to use nitrogen. It can be said that nitrogen is the "security gas" of chemical units.

Faq of Nitrogen

Installation requirements for cold box of air separation unit

1.The cold box foundation is divided into frame type and non frame type. The levelness of top surface of frame type frame shall not exceed 1 / 1000. All sections of the frame shall be placed vertically. All bottom plates of non frame type cold box shall be kept at the same level, and the levelness shall not exceed 1 / 1000. 2.When installing the cold box plate, the adjacent two sides can beassembled into a whole piece or angle type on the ground. The length error of each diagonal line a...

Dec 23, 2020

Precautions for equipment installation in cold box of air separation unit

1. Before connecting the pipe orifice of each container, clean white cloth shall be used to tie the orifice to prevent grease and dirt from entering. 2. When welding in the cold box and in the condensing evaporator, it is strictly forbidden for flame or arc to touch the surface of vessels and pipes. 3. The containers, valves, pipes and corresponding supports in the cold box, the surface of the cold box and the foundation surface shall not be stained with grease after installation, otherwise, degreasing treatment shall be carried out.

Dec 09, 2020