Design and manufacture chemical equipment by oneself
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Hello, fellow sailors. I work as a equipment engineer in a small fine chemical company. My supervisors often carry out equipment modifications; for example, they add a bottom tube bundle heat exchanger to existing 500-cubic-meter storage tanks – holes are made at the bottom of the tank, the tube bundle is inserted into it, and there are also baffles, among other components. All the specifications for these modifications are determined by them. 2. Make another opening on the manhole cover of the mixer, and use the upper pipe for feeding material. In short, for the design and modification of our equipment these days, we just think things out on our own, without any mathematical theories or anything like that. Since I used to work at Sinopec on equipment maintenance, my approach to work was quite rigid; I’m not familiar with making arbitrary changes to the equipment’s structure, and it’s difficult for me to accept such changes. I’ve never worked as a equipment engineer before, and I’m the only one in our team who holds this position. I’d like to ask everyone: is it something that every equipment engineer must know how to do? The manager said that if I’m to carry out this modification, I have to follow his ideas and struggle to come up with a solution. Is it our company that is doing something wrong, or are all small chemical enterprises like this? I’m very troubled right now and ask fellow sailors for guidance
To add, our leaders are of advanced age and should have considerable experience. I have been in this field for eight years: four years working on the maintenance of chemical process equipment, and three years in after-sales service for mechanical seals.
Is it possible for a safety accident to occur? If it wasn’t done as the leader intended.
Equipment modification must comply with the requirements of standards and specifications; when necessary, process calculations as well as calculations regarding strength and stiffness are required...
1. Pressure vessels involve stages such as design, manufacturing, installation, modification, and repair; this falls under the modification stage. 2. Although our country has such laws and even a constitution, it still does not possess a complete legal system. 3. That is, you do as the leader tells you to; if things are done well and correctly, it’s because of the leader’s effective management, but if there are mistakes or flaws, you must take responsibility and show accountability. This is China.
As long as the strength meets the requirements, it’s fine to do this. Practicality first!
Renovations in China are somewhat better. As for those abroad, domestic engineering companies simply do not have the qualifications to carry out such renovations. Moreover, the equipment to be renovated requires an R stamp, and it must be manufactured by qualified manufacturers; the renovations must comply with relevant standards. For example, when making holes in pressure-bearing components, calculations for strengthening those holes are necessary, and local hydrostatic tests must also be conducted, among other things
Renovation projects are even more complex than new construction projects; calculations are required for the processes, and factors such as equipment strength and openings must also be taken into account.
Private enterprises all strive for maximum profit. It’s normal