The invention relates to a cooling
water supply system in a dock using a dock gate, a dock gate straight-through
pipe valve penetrating through the dock gate is arranged in the dock gate, one end of the dock gate straight-through
pipe valve is a water inlet end, the water inlet end is communicated with a
water area outside the dock gate, the other end of the dock gate straight-through
pipe valve is a water outlet end, and the water outlet end is connected with a ship
seawater tank after being sequentially connected with a conveying pipe, a hose and a
seawater tank adapter pipe; the dock gate straight-through pipe valve is connected with the conveying pipe through a dock gate interface seat plate and a dock gate adapter pipe; the dock gate adapter pipe comprises a horn-shaped pipe, and a large-end connector
flange and a small-end connector
flange are arranged at the two ends of the horn-shaped pipe respectively. The cooling
water supply system further comprises a plurality of supports, and the supports are arranged below the dock gate interface seat plate and the
seawater tank transfer pipe and play a supporting role. In implementation, the invention provides a set of
water supply system, that is, one or more interface seat plates are added by utilizing the straight-through pipe valves, and corresponding pipelines and accessories are built in the dock, so that the dock gate, which is a single-function structure, has the function of debugging and supplying water to a ship, seawater outside the dock can be introduced into the dock, and the water supply efficiency is improved. And unpowered, low-cost and quick supply of water for debugging and cooling the ship equipment in the dock is realized.