Intelligent prediction of boiler blowdown
AssigneeSaudi Arabian Oil Company
InventorsAhmad Mohammad Al Ahdal, Hadi Abdullrahman Alshehri, Shadi Mohammed Al-Hazmi, Abdulelah Saeed Al Qahtani
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Abstract
A method for predicting a blowdown rate of one or more boilers includes generating output data with a first model that specifies an empirical relationship between multiple input temperatures, multiple plant gas feed rates, and multiple outputs of the boilers. The method further includes collecting an ambient operating temperature and a current steam demand of the boilers and comparing the ambient operating temperature and the current steam demand to the output data to determine a current required blowdown rate. Once determined, the blowdown rate of the boilers is adjusted according to the current required blowdown rate.
Claims20
A method for predicting a blowdown rate of one or more boilers, the method comprising:
- generating, with a first model, output data specifying an empirical relationship between a plurality of input temperatures, a plurality of plant gas feed rates, and a plurality of outputs of the one or more boilers;
- collecting an ambient operating temperature and a current steam demand of the one or more boilers;
- comparing, with a second model, the ambient operating temperature and the current steam demand to the output data to determine a current required blowdown rate;
- adjusting the blowdown rate of the one or more boilers according to the current required blowdown rate.
A system for predicting a blowdown rate of one or more boilers, the system comprising:
- a plurality of sensors configured to measure and output an ambient operating temperature and a current steam demand of the one or more boilers;
- a first model configured to generate output data specifying an empirical relationship between a plurality of input temperatures, a plurality of plant gas feed rates, and a plurality of outputs of the one or more boilers;
- a second model configured to compare the ambient operating temperature and the current steam demand to the output data to determine a current required blowdown rate;
- wherein the blowdown rate of the one or more boilers is adjusted according to the current required blowdown rate.
Dependencies are inferred from the claim text.