Discussion on on-site management by workshop process engineers during the project construction phase
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Many problems will arise during the construction of new facilities. How do your various departments coordinate with each other? I am in charge of process matters; how should we manage the construction to prevent mistakes? Other departments, please share as well how you handle things.
This post was last edited by ylb913 on 2015-6-28 05:21. The key issue is whether the design team or the construction team listens to you; often, the construction team proceeds with work based on the blueprints, and only makes changes after rework, thereby earning extra payment. The review of PID drawings and construction drawings is very important, but many designers do not pay attention to the results of such reviews. The leaders who attend the meetings usually do not draw or examine the drawings; once the meeting is over, that’s it – they say nothing when they go back. It is important to carefully review the drawings. The three checks and four determinations represent the final opportunity for rectification, and this is generally carried out.
Production staff are primarily responsible for ensuring proper design reviews; the 30%, 60%, and 90% model reviews as well as HAZOP reviews are the most important tasks for the production unit. Following that come the tests conducted during individual trials and the \"three inspections and four determinations\" processes, which aim to identify and address potential hazards and defects； As for the construction period, you don’t need to get involved. The safety conditions at the site are complex; the construction team will carry out work according to the plans, design representatives will be on site to provide support, and the supervisor will conduct inspections and evaluations in accordance with relevant standards. You have nothing to do with it.
Reviewing the drawings is extremely important, but this step is often not given due attention. Engineering staff are not familiar with the manufacturing processes, and senior management assumes that design firms will cover all possible mistakes; in reality, numerous flaws emerge during the construction phase!
If we don’t get involved, you’ll find that when the project is completed, many of the designs are unnecessary. Right now, with the mechanical construction almost finished, there are at least 20 cases where the design of the process pipelines is unreasonable. There is indeed a big difference between design firms and actual production teams. I think improvements are needed in future new plant constructions. Of course, the construction team follows the drawings, so we can’t just change things as we please; any changes must be made through revised design drawings. Therefore, I believe it’s important to involve several key personnel in the design review phase, preferably those with extensive practical production experience!
I disagree with your view; starting the work processes earlier can accelerate the project timeline and reduce redundant or repeated construction work. Model review and HAZOP address some issues, but not all of them.
Your last sentence captures the essence: \"From the stage of reviewing the drawings, it’s important to involve several key personnel in the manufacturing process, preferably those with extensive practical production experience.\" Design review involves examining the feasibility and constructibility of the drawings and models in order to identify any defects. If it’s only when the construction is completed that a large number of issues are discovered (with a small number of defects being within acceptable limits), then what was the point of doing anything at all? Making changes at this point is costly and time-consuming.
Designs are not always reasonable; project management relies mainly on the project owner to oversee things, by continuously communicating with design firms and construction teams to make improvements. Otherwise, it leads to wasted funds and time. Therefore, tasks such as reviewing designs, providing feedback on project details, and revising construction plans are all very important.
I’m also looking at it; I’m also concerned about this issue
In reality, construction units do not build in accordance with the plans, design representatives are not present on site, and supervisors fail to conduct inspections and approvals in line with the relevant standards.
As the client, you don’t have to pay – that’s the most powerful weapon