Views: 0 Author: Site Editor Publish Time: 2021-09-07 Origin: Site
In any construction project involving the pipe spool fabrication line, the pipe spool fabrication line needs to be properly planned, planned and executed according to the design requirements. In order to maintain the integrity of the pipe spool fabrication line, ensure the normal operation of various projects and minimize accidents, it is necessary to ensure the highest quality of work in the pipeline manufacturing process. In this article, we will explore more details about pipe spool fabrication line.
Here is the content list:
l What is the pipe processing workshop of the pipe spool fabrication line?
l What are the pipe manufacturing specifications of the pipe spool fabrication line?
l What are the steps of pipe spool fabrication line?
The pipe spool fabrication line workshop is basically a workshop, and all pipe spool fabrication line are developed here. Generally, all pipe spool fabrication lines used for spool preparation are performed in the workshop using skilled pipe manufacturers.
In large-scale pipe manufacturing plants, pipe spool fabrication line is the best economical way to reduce on-site installation costs. The pipe manufacturing workshop provides all equipment, tools and manpower, and the quality of the pipe shaft is high.
The pipe spool fabrication line specification is an engineering document that provides all the guidelines that the reel manufacturer should follow. The pipe spool fabrication line provides the minimum requirements for preparing detailed workshop drawings and manufacturing, as well as the requirements for inspection and testing. It lists all applicable codes and standards.
The pipe manufacturing process of pipe spool fabrication line requires the assembly of pipes and pipe fittings according to the spool diagram. The pipe spool fabrication line manufacturer must consider the size of the components, because transportation may become a problem. In this case, sub-components are an effective way to transport large projects. Follow the steps below to complete the pipeline manufacturing:
l Marking and cutting:
According to the requirements of the design drawings, marking should be carried out and confirmed by the relevant supervisor before cutting. Pipe cutting is usually performed as follows:
① Carbon steel pipe-through gas cutting and grinding.
② Alloy steel pipe-cut by grinding or flammable.
③ Stainless steel tube-by grinding or plasma cutting.
Use dye imprinting, paint marking or marking to transfer the heat of the pipe to the cut piece before cutting the pipe spool fabrication line.
l Final preparation:
In the next step, final preparation (chamfering) and assembly are carried out in accordance with the approved specifications and WPS.
l Welded pipes:
Extra precautions must be taken to ensure that the longitudinal seams on the connecting pipe spool fabrication lines are not aligned in the butt weld. The spacing between the seams must be at least 100 mm apart, and branch connections should also be cleared. Take care to ensure that the longitudinal seams are not resting on the steel structure.
l Welded pipes and fittings:
The pipe spool fabrication line and fittings used for assembling are then placed on a temporary pipe bed and properly fixed and supported. Next, check the quality assembly of the device. After receiving the inspection gap, the joints will be welded by qualified welders.
l Detailed information marking:
Use metal paint marks to mark various detailed information near the joints: pipeline number, component heating number, joint number, assembly inspection signature, welder number, visual inspection signature and welding date. The spool number of the pipeline is marked with a paint mark, and an aluminum label is tied to the spool.
l Heat treatment:
According to the specific requirements of the project, preheating and PWHT will be carried out in the workshop or on-site.The pipe spool fabrication line is then transferred from the pipe workshop to the laying area.
Perform non-destructive inspection according to the requirements of project specifications or guidelines. After receiving the NDT permission, the spool will be released for installation/painting, with a release notice. Spools rejected in the NDT process are identified with yellow and black labels and sent for repair. NDT has tested the repaired welding area again as needed.
After painting, the quality control will be inspected on site and recorded in the prescribed format. After the paint inspection, loosen the spool for installation.
l Manufacture of stainless steel pipe:
The manufacture of pipe spool fabrication line is usually carried out in the workshop, and the isolation area is carbon steel and alloy steel. Equipment and tools used for CS manufacturing shall not be used for SS. SS tools must be distinguished by marking only "For Stainless Steel". For stainless steel materials, stainless steel tools will be used for grinding, brushing and clamping.
For protection and temporary storage until installation, all flange convex surfaces of the completed pipe section are equipped with plywood shutters, and the end of the valve core should be equipped with an appropriate cover.If you want to know more about high-quality tank welding machine products, you can also contact us at any time.