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实用新型
CN202082616U 用于液化天然气接收站卸船管线的冷循环系统 失效 - 权利终止

用于液化天然气接收站卸船管线的冷循环系统
摘要：
本实用新型公开了一种用于液化天然气接收站卸船管线的冷循环系统，其包括卸船管线、低压输出总管、第一连接管线和第二连接管线，还包括：冷却循环管线、流量控制阀、流量传感器、流量控制器和第一开关阀，其中，冷却循环管线与低压输出总管相连接，低压输出总管中的一小股液化天然气经冷却循环管线返回至码头处，并将其中一小部分液化天然气返回至储罐，其余大部分液化天然气经卸船管线返回低压输出总管；流量传感器设置在冷却循环管线上，第一流量控制阀设置在低压输出总管上，流量传感器与第一流量控制阀通过流量控制器相连接，流量控制器根据流量传感器测得的冷却循环管线中的冷循环流量控制第一流量控制阀的开度；第一开关阀设置在冷却循环管线上。
摘要（英）：

The utility model discloses a cold circulating system for the ship unloading pipeline of an LNG (Liquefied Natural Gas) receiving terminal, which comprises the ship unloading pipeline, a low-pressure output main pipe, a first connecting pipeline and a second connecting pipeline, and also comprises a cold circulating pipeline, a flow control valve, a flow sensor, a flow controller and a first switch valve, wherein the cold circulating pipeline is connected with the lower-pressure output main pipe, one small stand of LNG in the low-pressure output main pipe returns to a dock through the cold circulating pipeline, the small part of LNG returns into a storage tank, the rest of the LNG returns to the low-pressure output main pipe through the ship unloading pipeline, the flow sensor is arranged on the cold circulating pipeline, the first flow control valve is arranged on the low-pressure output main pipe, the flow sensor and the first flow control valve are connected through the flow controller, the flow controller controls the opening degree of the first flow controller according to the cold circulating flow in the cold circulating pipeline, the cold circulating flow is sensed by the flow sensor, and the first switch valve is arranged on the cold circulating pipeline.

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