Gravity-assisted heat pipe cooling source cold storage system and chiller set

A chiller set for a cold storage system,

• wherein the cold storage system comprises a gravity-assisted heat pipe, a cold storage pool, a heat exchanging and cold condensing device and a heat exchanger pipe, an inlet and an outlet of the cold storage pool are parallelly connected with the cold water pipes of the chiller set, and are connected or disconnected via control valves;
• the gravity-assisted heat pipe is a separating heat pipe, an evaporating segment of the gravity-assisted heat pipe is arranged in the cold storage pool and a condensing segment is arranged in the heat exchanging and cold condensing device to obtain a cold source;
• the heat exchanger pipe is buried underground, the heat exchanger pipe comprises a central pipe and side pipes, upper ends of the central pipe and the side pipes are connected with the inlet and the outlet of the heat exchanging and cold condensing device via heat insulating pipes, the central pipe and the side pipes are in parallel, the side pipes are uniformly arranged outside the central pipe, the side pipes are separated from each other, a cross section of each side pipe is formed by three arcs with an equal arc length and an equal radius and connected sequentially to one another, edges of the side pipes are connected with outer wall surface of the central pipe, and an arc surface of the side pipes far from the central pipe is coaxial with the central pipe;
• and
• the cold storage pool (5) is parallel-connected to the chiller set.