The invention discloses a dual-mode switching method for a pump flow mode and a self-flow mode of a ship cooling system, which comprises the following steps of: 1) determining the required vacuum of a condenser of the cooling system, which is expressed by pressure; 2) setting a vacuum value pref as an identifier of a pump flow mode and an automatic flow mode; 3) designing starting and quitting rules of a pump flow mode; when the detected vacuum value in the condenser is greater than a set value and is kept for more than N sampling periods, the cooling system keeps a pump flow mode or is switched from a self-flowing mode to the pump flow mode; and when the detected vacuum value in the condenser is smaller than the set value and is kept for more than N sampling periods, the cooling system keeps a self-flowing mode or is switched from the pump flow mode to the self-flowing mode. Two switching modes are provided, the requirement for maximization of a self-flowing navigational speed interval or the optimal vacuum environment is met, the performance requirements for the optimal energy-saving and noise-reducing effects and the optimal operation vacuum environment can be met respectively, and implementation of multi-target operation of the cooling system is facilitated.
本发明公开了一种船舶冷却系统的泵流模式和自流模式的双模式切换方法,包括以下步骤:1)确定冷却系统的冷凝器的要求真空,以压力表示;2)设定真空值pref作为泵流模式、自流模式的标识;3)设计泵流模式的启动和退出规则;当检测的冷凝器内的真空值大于设定值且保持N个采样周期以上,则冷却系统保持泵流模式,或从自流模式切换为泵流模式;当检测的冷凝器内的真空值小于设定值且保持N个采样周期以上,则冷却系统保持自流模式,或从泵流模式切换为自流模式。本发明提供了两种切换模式,满足自流航速区间最大化或真空环境最佳,可分别满足节能、降噪效果最佳和运行真空环境最佳的性能需求,有助于冷却系统多目标运行的实现。
Dual-mode switching method for pump flow mode and self-flow mode of ship cooling system
一种船舶冷却系统的泵流模式和自流模式的双模式切换方法
2021-04-09
Patent
Electronic Resource
Chinese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
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