Cooling method and apparatus for flame sealing method of glass capillary

A cooling apparatus for a flame sealing method of a glass capillary, comprising:

• a fixing component for carrying the glass capillary, wherein a groove for connecting the glass capillary is provided in an upper surface of the fixing component, and the depth of the groove is smaller than the length of the glass capillary;
• a cooling portion used for indirectly cooling the glass capillary and capable of cooling the fixing component to be not higher than −30° C. within 5 min to 20 min, wherein the cooling portion comprises:
• a first cooling component located below the fixing component and being in contact with a lower surface of the fixing component, wherein the first cooling component comprises a multi-stage series-connected electric cooler;
• a thermally-conductive metal plate located below the first cooling component and being in contact with a lower surface of the first cooling component;
• a second cooling component located below the thermally-conductive metal plate and being in contact with a lower surface of the thermally-conductive metal plate, wherein the second cooling component comprises a multi-stage parallel-connected electric cooler;
• and
• a thermally-dissipative component connected to a lower surface of the second cooling component.