Large air separation unit instrumentation piping maintenance
Large air separation unit instrumentation piping maintenance
The inspection required sand picking of the entire cold box, so the installation of the instrument piping should not be taken lightly. Attention is paid to overcoming weak points during the installation.
Products of Large air separation unit instrumentation piping maintenance
DEAR air separation has many years of air separation plant manufacturing experience and has provided many sets of air separation plant for different customers in the oil industry for many years. The KDON (Ar) - 3500 / 2000-75 small air separation plant project cooperated by DEAR air separation and customers has helped enterprises to build more high-performance and high-quality products, which has been praised by customers.
DEAR air separation has provided a number of complete solutions for the metallurgical industry for many years, accumulated rich experience, and helped the efficient development of the metallurgical industry. With many years of service experience in the metallurgical industry, DEAR air separation provides foreign customer with the small air separation plant KDON(Ar)-1500+40Y/1500/40Y, which is mature technological, operating reliable, operating convenient, and energy saving intelligent, that is highly recognized by foreign customers.
(1) argon arc welder must have a pressure vessel welder qualification certificate, no permit personnel are strictly prohibited to weld.
(2) in order to effectively control the speed of heating of the welded parts, should be used as far as possible to break the arc method of welding, welding wire diameter selected towel 3mm, while welding current should be given strict control, such as towel 12 * 2 instrumentation pipe joints recommended to use 60 ~ 80 amps welding current, the maximum should no...
The molecular sieve on the air separation is currently used more 13X-APG type molecular sieve. The process principle is to use the internal porosity of its particles, and has a strong affinity for polar molecules, selective adsorption of carbon dioxide, water, and some hydrocarbons and other impurities. Activated alumina has high compressive strength, low abrasion rate, no pulverization, no bursting, etc. Its resistance to sudden changes in cold and heat is also very strong, and it also has bett...