Which designs for oil refining enterprises need to be carried out by professional design firms or individuals with design qualifications?

In all professions, the wealthy like to have their subordinates do the work for them; such factories should be shut down! !

That makes a lot of sense; at first glance I didn’t understand what the poster meant... Of course it’s all design-related fields...

Does that mean that during equipment maintenance, only the pipes and devices can be replaced using the dimensions and materials specified in the design drawings, and they must be identical to those in the original design? Is it necessary to have the design institute approve or conduct additional design work whenever there is a change in location or the addition of piping fittings (such as vent valves, shut-off valves, etc.)?

This is the key reason why some domestic chemical companies encounter problems. I’ve seen many such cases: certain managers or technical staff in these companies decide on changes on the spot, making alterations based solely on their personal opinions, without paying attention to calculations, analyses, or standardized procedures. As a result, problems arise once the system is put into operation or after it has been running for a while. Yet no one tries to analyze the underlying causes of these problems, nor do they change this way of working, which leads to the repeated occurrence of numerous issues.

It’s better to find a better design firm to handle it

Regarding such phenomena, I fully agree with what everyone has said; our **companies are just like that, and it’s a common problem – whether it’s private companies, state-owned enterprises, or even foreign companies, most of them are the same. In a true sense, any change in the processes of oil refining companies requires official drawings prepared by specialized chemical engineering firms; even a change to a single pipeline or valve constitutes such a requirement, let alone modifications to existing projects. Doing otherwise is a serious violation of regulations, even considered reckless behavior. If nothing goes wrong, it’s fine, but if an accident occurs, it results in criminal liability. For the initial phase of project renovation, all relevant specialties such as structure, architecture, water supply and drainage, process engineering, process systems, piping, electrical systems, telecommunications, instrumentation, HVAC, and general layout must be designed by design firms with Class A or Class B qualifications, which shall produce official drawings. Through a bidding process, professional construction teams are then hired to carry out the construction according to these drawings. If it is merely a routine inspection with no changes made, inspections of the relevant pressure vessels and safety valves, etc., also require approval and verification by the **relevant department. Only by being thorough can we minimize the occurrence of accidents to the greatest extent possible. Now, **why are there so many accidents? There are serious problems with management; take the explosion in Binhai New Area, Tianjin, for example. Think about it – a supervisor from Tianjin actually gave approval to Ruihai Company’s fake safety assessment reports, lying outright. It seems they really don’t care about the safety of people’s lives! Not to mention matters within companies, where there is another strange phenomenon: laypeople managing experts. Many people don’t even know how to write chemical formulas or what chemical symbols are; some were formerly motorcycle riders or street vendors who, relying on their relationships with bosses or simply because they are wealthy, try to manage chemical production processes and give orders in the workshops. I once encountered an idiot who knew absolutely nothing about chemistry. When there was a leak of *** in the factory, and it was hot in summer, he ordered the workers to take off their work clothes and work bare-chested; he himself also worked bare-chested, using a broom to open the rainwater manholes and sweeping the leaked *** into those manholes so that it could be drained into the municipal rainwater system. After finishing this, he even smoked, and as a result, a fire broke out. Fortunately, the fire department arrived in time. Look, when someone like this tries to manage things, it’s simply killing people. There are also some business leaders who can’t even understand blueprints; they can’t tell east from west when looking at them, and the symbols on those drawings are like unreadable script to them. During meetings, they like to make hasty decisions, and it’s obvious they’re laypeople just by hearing their statements, as they always use jargon. Encountering such a situation is really frustrating, sigh! At the very least, one should consult professional technicians before making a decision. If a company doesn’t take its own security seriously, it is essentially being irresponsible toward itself. I’m not sure what others think about the phenomenon I mentioned; anyway, in my opinion it’s truly detestable!

By ‘moderator’, does it refer to local refineries?:o The rich men often give orders to their subordinates, saying, “Hey, guys, build me one exactly like the one in the factory next door.”

The same is true for other chemical plants! How much of the technical modifications need to be done by the design firm? The smaller ones are decided on based on the judgment of those working on the project!

Theoretically, it is best to engage a design institute to make the changes. This is the safest way. Some factories also send their desired changes to the original design agency or have the original designers confirm them. But there were no official drawings changes. I think this approach is not rigorous and incorrect in terms of the process. As for modifying it directly by oneself, that’s...

So now, there are more and more potential hazards in chemical plants.