Heat energy control system and control method for sterilization kettle

The invention discloses a heat energy control system and method for a sterilization kettle, and the system comprises an RO water tank which is used for storing RO water, and the RO water is used for producing a sterilized beverage in the sterilization kettle; the exhaust steam heat exchanger is communicated with the hot water tank of the sterilization kettle through an exhaust pipeline; the exhaust steam heat exchanger is communicated with the RO water tank and is used for heating RO water; the heat exchange water tank is communicated with the sterilization kettle through a high-temperature overflow water pipe so as to recycle high-temperature circulating water of the sterilization kettle; and the heat exchange coil pipe is arranged in the heat exchange water tank, and the heat exchange water tank communicates with the RO water tank and is used for heating the RO water. The waste steam heat exchanger and the heat exchange water tank can effectively recycle the heat energy of the waste steam and the high-tempe