| 主权项 |
1. A beverage preparation apparatus comprising:
a hot water furnace for storing a quantity of water, the hot water furnace including a heater for heating water in the hot water furnace to a first predetermined temperature, and a first temperature sensor for sensing water temperature in the hot water furnace; at least one hot water supply line for flowing hot water out of the hot water furnace, the hot water supply line including a hot water pump for pumping hot water out of the hot water furnace and a solenoid valve for water supply for controlling opening or close of the hot water supply line; at least one hot water branch connected to the hot water supply line, each of the at least one hot water branch including a solenoid valve for water branch for controlling opening or close of the hot water branch; at least one beverage preparation module mounted to the hot water branches, each of the at least one beverage preparation module including a container for storing predetermined beverage materials wherein when the corresponding solenoid valve for water branch is open, hot water in the hot water supply line flows into the container to mix with the beverage materials to prepare beverage; and a return pipe interconnecting the hot water furnace and the hot water supply line, the return pipe including a second temperature sensor and a solenoid valve for return pipe for controlling opening or close of the return pipe; wherein in response to flowing hot water to the hot water supply line, the solenoid valves for water branch are closed and the solenoid valve for return pipe is open so that hot water in the hot water supply line is configured to flow to the hot water furnace via the return pipe; and the hot water flow stops when the second temperature sensor senses temperature of the hot water flow in the return pipe is equal to the first predetermined temperature. The beverage preparation apparatus of claim 1, further comprising a water supply line for flowing cold water to the hot water furnace, and a plurality of water level sensors for sensing water level in the hot water furnace; wherein the plurality of water level sensors include a low water level sensor, an intermediate water level sensor, a high water level sensor, and an upper limit level sensor; and wherein the low water level sensor is slightly above the water supply line, when water level of the hot water furnace is lower than the low water level sensor, the beverage preparation apparatus stops hot water supply, cuts off power of the heater and the hot water pump, and issues a warning, after stopping issuing the warning and water level in the hot water furnace reaching the intermediate water level sensor, the water supply line is close by turning off power, the heater heats water, the water supply line supplies cold water to the hot water furnace again when the first temperature sensor senses water temperature in the hot water furnace is equal to the first predetermined temperature, the water supply line is close by turning off power when water level in the hot water furnace reaches the high water level sensor, the upper limit level sensor is above the high water level sensor, and when water level of the hot water furnace reaches the upper limit level sensor, the beverage preparation apparatus closes the water supply line, cuts off power of the heater and the hot water pump, and issues a warning. |
