10
Description and Function of Each Part
Piping System View
①
Water supply port
⑨
Heater
②
Solenoid valve
⑩
Heater integument pipe
③
Fixed flow rate valve
⑪
Boiler
④
Micro switch (Heater control)
⑫
Condenser
⑤
Float
⑬
Float switch
⑥
Float tube
⑭
Tank
⑦
Drain port
⑮
Water cock
⑧
Manually cock ( Boiler drain)
Mechanism
1) Water Supply (cooling water, boiler water)
Raw water is controlled to a specified flow rate (about 0.8 liter/min.) by the fixed flow rate
valve, and heat-exchanged in the condenser
⑫
as the cooling water, and then supplied to the
boiler
⑪
via the float tube
⑥
, thus overflowing if exceeding the specified level finally to be
drained to outside.
2) Distillation
When the boiler
⑪
reaches the specified water level, the float
⑤
in the float tube
⑥
goes up,
and detects the water level, and the heater
⑨
is turned ON to start distillation. The water
boiled in the boiler turns to steam, cooled/condensed in the condenser
⑫
, and then pooled in
the tank as distilled water.
3) Full Tank
When the tank
⑭
reaches the specified amount of water of about 20 liter, the float switch
⑬
trips, and the solenoid valve (for supplying water)
②
turns OFF, preventing the water supply
to the main unit, while the heater
⑨
turns OFF to stop distillation. When any specified
amount water has been sampled from the tank, distillation will be restarted.
4) Sampling Water
The distilled water pooled in the tank
⑭
can be sampled by opening the water cock
⑮
.
WS200
⑩
WS220
Water supply
Water drain
Sampling