Does every boiler have two-stage reheat water temperature control?
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I’d like to know if every boiler has two-stage feedwater temperature control If so, is self-tuning effective, or is manual adjustment used more often? Does the effectiveness of regulation depend greatly on the boiler design?
Cooling water regulation is available in most superheated steam boilers; some use primary water injection for cooling, while others use secondary water injection. As for whether this regulation should take place after the second stage of superheating, it depends on the specific boiler. Additionally, as far as I know, there are systems with automatic regulation, as well as those where automatic regulation isn’t effective and manual control is required. I’m not sure which type is more common. The effectiveness of such regulation depends on both the boiler’s design and its operation
It is present in ordinary superheated steam boilers, but not in waste heat boilers or steam heaters; this mainly depends on the design.
It’s something that’s present in most superheated steam boilers; as for whether it should be controlled manually or automatically, that depends on you.
Our 150T/H boilers don’t have it; the 240T/H ones do, but the automatic function isn’t good
Some have it, some don’t; it depends on the circumstances over time
During normal production, the automatic adjustment works quite well; in abnormal situations, manual intervention is required
Returning to the 7th floor: It would be great if the temperature reduction control could operate automatically in a normal manner. Could you elaborate further on whether it is a complex control system or a simple one? What are the PID parameters, and what are the influencing factors? How can these disturbances be addressed?