Selection of SIS system for hydrocracking
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Besides the German dark horses, which other ones are good?
Siemens Honeywell Congasen GE
Conjisen’s SIS has just been launched, and it is estimated that it is not yet widely used in the market; on the other hand, Tricon is used quite extensively.
Isn’t Conixion’s SIS system TRICON? For many years, it was Conixen that developed the TRICON SIS, and it was only in recent years that Schneider began to work on TRICON SIS.
No, Kangjisen used to be the exclusive distributor for TRICON; now that TRICON has been acquired by Schneider, Kangjisen also sells TRICON products, but it is no longer the exclusive distributor. Kangjisen has now developed its own SIS system, which has received SIL certification.
Oh, what is Congijin’s own SIS called? I’ve never seen it
Kangjisen still produces TRICON products, but project authorization is required.
Conjisen has been working on its own safety systems for a long time; the new products resemble TRICON in appearance, and they are currently being promoted for use in small-scale projects, with comprehensive certification available.
I’ll simply share what I know: 1. Germany’s dark horse company now has a wholly-owned subsidiary in Shanghai; it’s called Xima and is operated by Germans themselves； 2. After TRICON was acquired by Schneider, its business strategy in China also changed. Kangjisen and Schneider have distinct roles in domestic projects, with the specific responsibilities determined based on project assignments ； 3. Siemens’ fail-safe systems are also an option, though they are expensive; they are commonly used in power units or complete sets of equipment ； 4. Honeywell, Yokogawa, and Emerson all have their own SIS systems. Honeywell and Emerson hold a higher market share. Emerson’s system is very flexible – it does not distinguish between different IO types, allowing for free configuration ； 5. ICS’s SIS system is also good, offering dual/triple redundancy options. It hasn’t been widely adopted in China; now it belongs to Rockwell. The largest project implemented in China with this system is probably the one in Tenglong, Zhangzhou, Fujian ； 6. GE’s MARK VIES – that’s probably how it’s called. I’ve heard of it, but I haven’t had any direct experience with it. Welcome everyone to communicate more!