Purging chemical equipment is an important part of chemical production, mainly to eliminate hidden dangers, avoid unnecessary losses, and check the cleanliness and construction quality of pipeline systems to ensure smooth operation of the system. The principles and requirements, preparation conditions, operation points, qualification standards, and precautions for its flushing and scanning!
Purpose of Purging
Before starting the installation of the device, it is necessary to blow and clean the pipelines and equipment that have passed the installation inspection. The purpose is to use fluids such as air (nitrogen), steam, water, and chemical solutions to blow and wash, remove residual impurities during the construction process, and ensure the smooth operation of the device. There are usually several methods, such as water flushing, air (nitrogen) blowing, and oil cleaning.
Water flushing
Water flushing is a method of flushing pipelines and equipment using water as the medium and pressurized by a pump. For example, flushing of the circulating water system.
Air (nitrogen) blowing
Air blowing is a method of removing residual debris from the process pipeline using air as the medium, after being pressurized by an air compressor to 0.6-0.8Mpa.
Steam blowing
Safety precautions for steam blowing: Set up a blowing warning line to prevent personnel from accidentally entering the range of the blowing port and causing accidents.
During the blowing process, a unified deployment and arrangement should be made, and all parties should cooperate to do a good job in steam blowing according to the actual situation.