I would like to ask what YFKL refers to in the PID diagram, in relation to the connection between the fan motor
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I would like to ask what YFKL represents in the PID diagram, in relation to the fan motor connection
It is also associated with the pressure gauge at the front end of the fan; Xiao Bai doesn’t understand why
I checked the function indicators and graphic symbols on the control panel; Y denotes events or situations； Does F mean ratio? Does K represent the operator? Does L mean low?
Does it mean variable frequency control for the fan?
:Lol, it seems like the design firm behind this image is pretty low-quality. Based on your description and screenshots, YFKL should be an abbreviation for the induced draft fan control logic. YFKL-102 is just an abbreviated code for logic; check the logic diagram to see
I think what was said upstairs makes sense as well; it’s quite fake, with the drawing methods for PI and PT being reversed. The connection between the fan motor and the inlet pressure indicates a logical relationship between them, which is useful for developing control schemes in the future.
The PI and PT are not drawn incorrectly; what’s wrong?
I specifically checked the standards for graphic symbols of process measurement and control instruments; PI and PT should be correct
Thank you, moderator, for answering the question. I’ll go ask the design institute in a bit
YF refers to the induced draft fan K control L interlock. It should be the pressure interlock that controls the fan speed (frequency).
Building 10# is very professional; what does YYF mean? :lol