【Longkou LNG New Process】Fully automatic welding of 9% nickel steel wall panels for internal storage tanks
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In terms of project design, the use of a 220,000 cubic meter semi-underground concrete LNG storage tank is a first in China； In terms of construction techniques, the large-scale application of the fully automatic longitudinal welding process for 9% nickel steel wall plates in storage tanks is the first of its kind in global LNG project construction. The local content rate for the equipment in this project is expected to reach 90%, which is higher than that of existing LNG projects in China as well as new projects of similar type built during the same period. This project will vigorously promote standardization, modularization, and informatization, striving to build a smart LNG receiving station featuring \"fully digital handover, fully intelligent operation, and full-life-cycle management\". = In terms of construction techniques, the large-scale application of the fully automatic longitudinal welding process for 9% nickel steel wall plates in storage tanks is the first of its kind in global LNG project construction.
The “8·7” explosion at Tianjin Yikun Fine Chemicals Company: On August 7, 2006, an explosion occurred in a reactor in the nitration workshop of Tianjin Yikun Fine Chemicals Technology Development Co., Ltd.; the accident resulted in 10 deaths and 3 injuries. The direct cause of the accident was improper control of the rate at which concentrated sulfuric acid was added to Reactor No. 5, which led to rapid accumulation of heat from the chemical reactions within the reactor. Since cooling was not carried out in a timely manner, Reactor No. 5 exploded. The force of the explosion and the debris caused reactors No. 3, No. 4, and No. 6 to explode in succession.
An explosion occurred in a reactor at a chemical plant in Shangyu, injuring 7 employees. 2015-10-06 09:02 Zhejiang Online Shaoxing. At around 9:50 a.m. yesterday, an explosion took place in a reactor in the nitration workshop of Zhejiang Hongxiang Chemical Co., Ltd., located in the Hangzhou Bay Economic and Technological Development Zone in Shangyu, resulting in 7 employees being injured. After the accident, the city’s top leaders issued instructions to make every effort to rescue the injured and handle the scene properly. Rapidly identify the cause, eliminate potential risks, and prevent such accidents from occurring again. As of last night when the reporter submitted this report, the injured individuals were no longer in critical condition, the open flames at the scene had been largely extinguished, and no secondary accidents occurred. It is understood that the workshop where the accident occurred has a two-story frame structure and a construction area of 600 square meters. According to witnesses, the explosion site was in a state of chaos; the blast caused the glass in nearby buildings to shatter, resulting in injuries to some people and triggering a fire. The area affected by the fire was around 500 square meters, and the substances involved in the explosion and fire were nitric acid, ***, and sulfuric acid. Following the accident, the city’s fire department dispatched 9 fire stations, 22 fire trucks, and 68 firefighters to handle the situation. The 7 injured workers were taken to Shangyu People’s Hospital for treatment. At present, the cause of the accident is under further investigation.