A control method and system for steam pipe network balance optimization

Abstract

The invention discloses a control method and system for balance optimization of a steam pipe network. The control method and system are applied to single-stage steam pipe networks, wherein each single-stage steam pipe network comprises at least two adjusting devices and a discharging device. The method comprises the steps that the adjusting amount of the corresponding adjusting device is determined based on any one of the outlet temperature associated with each adjusting device or the first current-stage pipe network pressure of the current-stage pipe network, the outlet flow associated with each adjusting device and the adjacent pipe network pressure of the adjacent pipe network associated with the current-stage pipe network; the adjusting amount of the discharging device is determined based on the second current-stage pipe network pressure obtained by the discharging device and the inflow mass flow and the outflow mass flow of the current-stage pipe network; and the pipe network pressure of the single-stage steam pipe networks is adjusted to the target pressure jointly according to the adjusting amounts of all the adjusting devices and the adjusting amount of the discharging device, and when each single-stage steam pipe network in the whole steam pipe network system adopts the control method, automatic control over balance optimization of the steam pipe network is achieved.

Description

technical field [0001] The invention relates to the technical field of industrial automation control, and more specifically, relates to a control method and system for steam pipe network balance optimization. Background technique [0002] In the field of industrial automation control, steam plays an important role as one of the power sources. The stable control of steam pressure is related to the stable operation of the product control process, which affects the production cost of the enterprise. [0003] The steam system is responsible for multiple functions such as system heating and power drive, and there are multiple pipe networks that are used in pressure steps. The steam network pipes at each level are responsible for the drive of equipment at each level. The start-up and shutdown or load changes of each equipment It affects the pressure and steam consumption of the steam pipe network at this level, and indirectly affects other steam pipe networks that are related to ...

AI Technical Summary

Problems solved by technology

[0004] However, in the current domestic complex steam pipe network system, the balance control is mainly controlled by manual scheduling, so it can no longer meet the needs of system stability, high efficiency and energy saving

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