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AssigneeChina Datang Technologies & Engineering Co., Ltd.
InventorsChunjiang Han, Peng Guo, Yuyang Gong
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The present invention belongs to power generation field. It relates to a method for improving cooling capacity of a power station direct air-cooling system and the cooling system thereof. According to the present invention, a transformer in a cooling system is connected to a voltage of the power grid and outputs a voltage to an electric motor, so that its working voltage reaches 380-390V; a frequency of 40-47 HZ is output from a frequency converter in the cooling system to the electric motor; a fan is driven by the electric motor working under 380-390V and 40-47 HZ to rotate according to a set velocity ratio with the aid of a speed reducer, and cooling wind is delivered by the rotating fan head-on to a heat radiator. The present invention can be widely applied in rebuilding of existing direct air-cooling units, or designing of new power station direct air-cooling systems.
A method for improving cooling capacity of a power station direct air-cooling system, which includes the following steps:
A cooling system for a power station direct air-cooling system, such cooling system includes a transformer which is electrically connected by electrical cables, a frequency converter, an electric motor, a speed reducer and a fan, wherein the transformer is connected to a voltage of the power grid, and outputs a voltage to the electric motor through the frequency converter, which outputs a frequency to the electric motor, characterized in that, the input terminal voltage of the electric motor is 380-390V and the input frequency is 40-47 HZ.
Dependencies are inferred from the claim text.