開飲機演進史

Principal Structure of Water Dispenser

The main functions of a water dispenser are to boil water and to properly disconnect tap water with boiled water.
Hot Water Principal:
After tap water has been inserted into tap water tank, the tap water is boiled through heating board and stored into hot water tank.
Ambient Water Principal:
Hot water flowed into ambient water tank to cool down the temperature. There are two cooling method: 1) leave it until it naturally cooling down, 2) through the replacement of the ambient water tank that the ambient water tank is dunked in the tap water tank. The cooler temperature in the tap water tank will accelerate the cooling process to cool down hot water in ambient water tank and at same time the high temperature of the ambient water tank will accelerate the boiling time for tap water in the tap water tank.
Cold Water Principal:
The cooling devices are compressor and coolen.

Possessive History of Yen Sun’s Water Dispenser

Movement Principal:	Tap water is provided directly into hot water tank, heated and boiled by heating board and then dispensed directly through tap.
Drawback:	While serving the hot water, tap water directly recruited into how water tank, mixture of hot water and tap water caused the decrease of hot water temperature and the consumer would be served with un-boiled tap water.

2.Stop Water Valve (the first tap water non-declension water dispenser in Taiwan)

Movement Principal:	A stop water valve is installed as the disconnection devices between hot water tank and tap water tank. In steady condition, there is open water circulation between the two tanks. However, open movement in dispense tap will instruct the valve to shut down the interconnection route between the two tanks and the routes will be opened once again once the dispense tap is closed. The installation ensured that the consumer would not be served with mixture water of hot and tap water.
Drawback:	a.There is no installation of stop water valve in the ambient water tank-there is doubt that the tap water may flow into the ambient water tank
	b.Need to wait for indicator lamp turns to green until the water is ready for serving, as a result, it might be inconvenient for consumers
	c.When the machine is not under usage for long period of time, there may be a mixture of tap water and hot water.

2. A. Manual Single Water Stop Valve

Movement Principal:	A stop water valve is installed as the disconnection devices between hot water tank and tap water tank. A manual switch is designed that tap water would only be recruited into the hot water tank when consumer put OFF the switch. Hot water could be dispensed when the switch is on ON position. The installation ensures that consumers will not be served with tap water.
Drawback:	a.Manual valve controller can be inconvenient under usage.
	b.There is possibility to be served with mixed water if the consumers forget to put the switch to ON position.
	c.The hot tank can be dry burned if the consumer didn’t switch to OFF position to have the tap water recruited into the hot water tank.

3.Double Magnetic Valves (Microcomputer re-boil timer)

Movement Principal:	There is a closed magnetic valve installed between tap water tank and hot water tank and another closed magnetic valve is installed between hot water tank and ambient water tank. Its movement way is that when water temperature in hot water tank is lowered, the magnetic valve controlled by computer IC that is between tap water tank and hot water tank will be automatically opened, the tap water would flow into hot water tank and being re-boiled. In the meanwhile, the pipeline leading to the warm water tank has been closed too. When the hot water reaches to settled temperature again, the magnetic valve between tap water tank and hot water tank will be automatically closed, then the magnetic valve between hot water tank and ambient water tank will be opened to supply hot and ambient drinking water again.
Drawback:	a. When the hot water is under boiling condition, no hot water and ambient water can be served to consumers.
	b.While serving large amount of ambient and hot water, there are possibilities that to ran out of supply of water.

4. Steam type water dispenser (Win the award of the national fine works)

Movement Principal:	Taking consumer’s demand of easy to use, health, and hygiene into consideration since starting point of designing, Yen Sun developed national first steam type water dispenser that also obtained national fine work award in the same year. The principle of the design is that “non-steamed water cannot pass and served for drinking”. That is to say when consumers turn on the faucet, water that comes out must be through boiled. The so-called steam type water dispenser is also called thermal expansion principle or siphon pipe principle. Its principle is when tap water passes momentary heater in the pipe, thermal expansion effects pushes water into both sides of the pipe, a reverse valve is installed on one side of the pipe that hot water can only enter to the hot tank side. Thus, the installation ensures that only boiled water can be served to consumers.

Movement Principal:

Taking consumer’s demand of easy to use, health, and hygiene into consideration since starting point of designing, Yen Sun developed national first steam type water dispenser that also obtained national fine work award in the same year. The principle of the design is that “non-steamed water cannot pass and served for drinking”. That is to say when consumers turn on the faucet, water that comes out must be through boiled. The so-called steam type water dispenser is also called thermal expansion principle or siphon pipe principle. Its principle is when tap water passes momentary heater in the pipe, thermal expansion effects pushes water into both sides of the pipe, a reverse valve is installed on one side of the pipe that hot water can only enter to the hot tank side. Thus, the installation ensures that only boiled water can be served to consumers.