Device for manufacturing monocrystalline silicon and cooling method thereof

A device for manufacturing monocrystalline silicon, comprising:

• a crystal puller;
• a heating chamber and a heater arranged in the crystal puller;
• a first thermal insulation structure arranged in the crystal puller and located above the heating chamber and the heater;
• and
• a cooling apparatus comprising a jacking mechanism and a cooling pipe, wherein the jacking mechanism comprises an air cylinder or a hydraulic cylinder, and the cooling pipe is capable of moving into or out of the crystal puller;
• wherein when the cooling pipe enters the crystal puller, the cooling pipe is connected to the first thermal insulation structure, and the cooling pipe is configured to lift the first thermal insulation structure through the air cylinder or the hydraulic cylinder to increase a distance between the first thermal insulation structure and the heating chamber and the heater, and the cooling pipe is further configured to output a cooling medium through the cooling pipe to cool the crystal puller;
• wherein the cooling pipe is arranged between the first thermal insulation structure and the heater.