The proportion of the automatic control system in the total investment
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In enterprises, for a new project or a renovation project, what proportion of the total investment does the automation part (including control systems and field instruments) generally account for? Those who know the answer, please let me know.
Sinopec seems to be at 10%, and most of it are valves. It’s not necessarily accurate; I’ll give you the correct answer once there’s a purchase order. Waiting for criticism.
One alumina production line costs 3 billion yuan; two lines cost 6 billion yuan. The automation system and instruments account for around 300 million yuan. This is because we take equipment wear and tear into consideration, with a design lifespan of five years – the annual equipment wear and tear amounts to 100 million yuan~·
It depends on the industry; it’s around 5% to 15%
Is this thing accurate? There are good devices, ones that are fairly good, and ones that are poor quality; the prices for these last ones differ significantly. Our projects all have around 10% each.
In the petrochemical industry, the price difference for valves is around ten times, of course when comparing domestic products with those imported from abroad.
Thank you to everyone above; I know the price difference is significant, but generally speaking, for projects with large investment amounts, the instruments used are also more expensive. For projects with smaller investments, it’s unlikely that very expensive instruments and valves would be chosen, under normal circumstances. In the projects I’m involved in, it seems that the contribution usually doesn’t exceed 15% of the total investment; I’m just not sure if there are any regulations regarding this.
10%–20%, it varies by industry; various factors are at play...
For new projects, it depends on the level of automation required in their design; the higher the required control level, the greater the investment, which is generally around 10%. The cost of a renovation project depends mainly on the scope and scale of the renovation – whether it involves adding components to the existing control system, rebuilding it from scratch, or upgrading the system. Naturally, the costs vary in these cases. Moreover, the proportion of costs related to renovation also depends on which other devices and systems are involved; it’s not possible to give a general answer.
Our country has a large pool of human resources, and the level of automation required is not high; 10% would be sufficient
I work in the pharmaceutical industry. In a new production line, if 15% of the investment is allocated to automatic control equipment, it is considered highly automated. Even if that figure drops to around 10% and high-quality domestic equipment is used, the level of automation remains quite high. If further reductions in investment are needed, 8% would likely represent the minimum threshold
Chemical companies account for roughly 5%-10%, with the actual figure leaning more towards 5. This post was last edited by zhaohh3211 on 2009-4-3 at 13:13.]
After all, it is auxiliary equipment, not main equipment
For chemical pharmaceutical companies, the investment in automation equipment for fermentation production varies significantly depending on the level of automation; generally, it can account for 15% of the total investment in cases of high automation levels, and at least 5% in cases of lower automation levels.
We also estimated it at 10%, and the actual operation deviates not much from that