A circulating water operation mode optimization method, device, equipment and storage medium

By acquiring river water temperature and unit load, calculating current drop and vacuum change coefficient, and deciding on high-speed and low-speed switching of circulating pumps, the quantitative trade-off between plant power revenue and condenser pressure loss in the circulating water system is solved, thereby improving operational economy and coal consumption optimization.

CN122334744APending Publication Date: 2026-07-03HUANENG SHANGHAI SHIDONGKOU SECOND POWER PLANT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUANENG SHANGHAI SHIDONGKOU SECOND POWER PLANT
Filing Date
2026-03-05
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The existing circulating water system operation mode fails to quantitatively balance the decrease in plant power consumption and the increase in condenser pressure, resulting in suboptimal economic efficiency and a lack of multivariate coupling optimization methods.

Method used

By acquiring river water temperature, unit load, and the number of high-speed circulating pumps, the current drop value and vacuum change coefficient are calculated. The first coal consumption and the second coal consumption are compared to determine the switching between high and low speeds of the circulating pumps and optimize the operation mode.

Benefits of technology

It has improved the economic efficiency of the circulating water system, optimized the coal consumption for power generation, and solved the multivariate coupling optimization problem under existing manual experience or fixed modes.

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Abstract

The present application relates to the technical field of thermal power generation, and particularly discloses a circulating water operation mode optimization method, device, equipment and storage medium. The present application determines the current drop value and the vacuum change coefficient after the high-speed circulating pump is switched to low-speed operation by real-time acquisition of river water temperature, unit load and the number of high-speed circulating pumps, respectively calculates the first coal consumption reduced by the reduction of the auxiliary power rate and the second coal consumption increased by the rise of the condenser pressure, and decides the high-low speed switching of the circulating pump according to the comparison result of the two, solves the multivariable coupling optimization problem that the existing artificial experience or fixed operation mode cannot quantitatively weigh the auxiliary power income and the condenser pressure loss, and realizes the improvement of the operation economy of the circulating water system and the optimization level of the unit power supply coal consumption.
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