Home / All Air Separation tags /

Maintenance of large air separation unit

Maintenance of large air separation unit
The maintenance of large-scale air separation unit needs to fill in the maintenance safety isolation measures according to the maintenance contents, and the management personnel need to strictly implement the operation personnel to ensure that each maintenance task can not only ensure the quality of maintenance, but also ensure the safety of personnel. The maintenance work of large-scale air separation unit is a complicated and tedious work, which requires operators to be professional and careful enough to complete the work safely and efficiently.
News of Maintenance of large air separation unit
More
Oct 14, 2020
On October 13, it was reported that Kaifeng DEAR air separation Industrial Co., Ltd. (hereinafter referred to as DEAR air separation) and Luoyang Zhon
Sep 30, 2020
On September 24, a delegation from QinZhou Federation of Industry and Commerce of Guangxi province came to DEAR air separation for investigation and i
Albums of Maintenance of large air separation unit
More
Solutions of Maintenance of large air separation unit
More
1500-type solution for small air separation plant in petroleum industry
The main applications of the air separation plant in petroleum industry include the use of natural gas or heavy oil to produce synthetic ammonia, olefin and petrochemical products, as well as providing nitrogen for oil extraction. The implementation of 1500 small air separation plant project cooperated with clients by DEAR air separation plant is beneficial to the improvement of crude oil processing scale in Shengli oilfiel
Small air separation plant 3000 solution in petroleum industry
The problems of raw material pre-treatment of petroleum, delayed coking unit and wax oil relief hydrocracking unit, and the deep processing and comprehensive utilization of naphtha, which are faced by the petroleum industry, the 3000 type small air separation equipment project cooperated with clients this time has improved the comprehensive economic benefits of the products and the level of clean and green production.
Faq of Maintenance of large air separation unit
More
The amount of liquid nitrogen removed from the lower column of the air separation unit will affect the purity of the liquid nitrogen in the lower column and the oxygen enriched liquid air at the bottom of the column. When the liquid nitrogen removal amount of the lower column increases, the reflux liquid participating in the heat and mass exchange of the lower column will be reduced, the temperature rise of the rising steam on the column plate will be correspondingly reduced, the condensation of the rising steam will not be sufficient, the oxygen component will be condensed less, the purity of nitrogen at the column top will be reduced, and the purity of liquid nitrogen will be naturally reduced. At the same time, the temperature rise of the downflow liquid will increase, the liquid evaporation will be more sufficient, more nitrogen components will be evaporated to the top of the column, and the purity of the liquid air at the bottom of the column will be improved accordingly.
Dec 02, 2020
Lean alloy steel is often used in special pressure-bearing equipment. The alloying elements often added include manganese, silicon, chromium, nickel, molybdenum, vanadium, boron and rare earth elements. Most of silicon and manganese melt into ferrite, only a small amount into cementite, which are commonly used strengthening elements in lean alloy steel. The amount of chromium and nickel is generally small, and the main role of chromium and nickel is to increase the undercooling degree of austenite and refine the microstructure. Part of chromium is dissolved in ferrite and some in cementite, which can improve the stability of cementite. Molybdenum is dissolved in ferrite slightly, and has the effect of solid solution strengthening. It is a strong carbide forming element, which can improve the high temperature strength of steel and improve the temper brittleness.
Dec 02, 2020
© Kaifeng DEAR Air Separation Industry Co., Ltd.. All rights reserved.
Online
Inquiry
Email
Top