| 摘要 |
A beverage preparing apparatus mixes hot water from a hot water pipe with cold water from a cold water pipe to produce a mixed water flow with an appropriate temperature to be delivered to a liquid dispenser. When a brewing solenoid valve is opened, the liquid dispenser delivers the mixed water flow to a preparing container that contains a beverage composition to prepare a beverage. When the brewing solenoid valve is shut, the liquid dispenser delivers the mixed water flow into a hot water inlet pipe. When a hot water inlet solenoid valve is opened, the mixed water flow is added into the beverage directly. When the brewing solenoid valve and hot water inlet solenoid valve are shut, the hot water in the heat exchanger is vaporized and passed through a pre-heating circulation pipeline to pre-heat the liquid dispenser and returned to a heat exchanger to constitute a pre-heating circulation.
|
