Testing of the new process

I. Site cleanup and the three inspections and four determinations: After the installation of the project is completed, it is necessary first to ensure that the site is tidy and the roads are unobstructed. Secondly, the three inspections and four determinations must be carried out to guarantee that the quality of the installation meets the design requirements. Remove equipment, apparatus, pipes, valves that are not related to the device, as well as any remaining construction debris; keep the site clean and free of obstacles. Each specialty shall, in accordance with the design requirements, check item by item against the drawings to determine whether the project meets the design specifications, whether the processes are reasonable, whether the flow is smooth, and whether the operation is convenient. Defects should be identified and corrected promptly; it is also necessary to check whether the positions of the equipment are correct, whether there are any defects in pipe welding, whether blind flanges, fittings, and gaskets meet the required standards, whether the orientation of the valves is correct, whether the valves operate smoothly, and whether the installation locations and quantities of pressure gauges and thermometers meet the specified requirements. II. System purging plan: The purpose of purging is to remove debris originating from the equipment and pipelines themselves or left over during installation, thereby ensuring smooth flow of materials after the system is put into operation. Before purging, the relevant equipment, valves, instruments, flow meters, level gauges, and instrument pipelines that do not need to be purged should be removed or blocked with blind flanges. Blind flanges should be installed on the valves connected to the production system to ensure a secure isolation and prevent air from entering. After the purging is complete, these components should be reinstalled. For pipes and equipment that do not require purging, blind flanges should be used, or they should be disconnected or removed, in order to prevent dirt or welding slag from entering the valves. Additionally, the purge outlets must be positioned at different locations and covered with steel plates, leaving a slight gap. During the blowing process, use a wooden hammer to strike each weld and pipe in order to blow away the slag; be careful not to strike the hammer against the pipes in the production system while doing this. III. Cleaning Plan for Pipeline Equipment: Pipes, equipment, valves, etc. have a lot of oil residues and debris on their surfaces during the manufacturing process. Simply blowing air at them is not sufficient to clean them thoroughly. These oil residues and debris can contaminate catalysts during production, thereby harming their performance; they can also affect the quality of the products. When there is too much debris, it can cause blockages in pipes, valves, and instruments, so it is necessary to remove it. IV. Then, single-unit testing can be carried out.

(1) On-site operators must be familiar with the site and carry out the three inspections and four determinations. (2) All utility media must be available. (3) All control valves and measuring instruments must be accurate and in good working condition. (4) All valves and blind flanges on the production pipelines must be in the correct positions – those that should be open are open, and those that should be closed are closed. (5) Any leaks detected on site must be addressed promptly

Thank you all for your advice. I think there’s too much work to do, but I’ll get started right away.

1. The purging must be thorough; loosen the flanges of each pipeline one by one and use air to blow out any welding slag remaining from the construction process. 2. During water or oil commissioning, a filter screen must be installed at the pump inlet to prevent impurities such as unremoved weld slag from damaging the pump impeller.