Water utilization in bottle washers.

Current bottle washers are designed with water conservation principles in mind:
1. At startup, each soaking tank is filled with water and caustic solution, and heated to the process temperature.
2. The bottle washer begins operation, and the soaking tank water is used for bottle soaking, label removal, and bottle rinsing.
3. During the washing process, some water is lost, requiring replenishment. The water added is not tap water, but rather the final rinse water, which is softened water. After rinsing the empty bottles, this softened water flows into the warm water tank.
4. There is a passage between the warm water tank and the hot water tank. When the added rinse water causes overflow in the warm water tank and the hot water tank, it flows out through the overflow port and is piped to the pre-soaking section. This water contains a certain residual alkali content and is used for pre-soaking dirty bottles.
5. During normal operation, the hot water and warm water used for bottle rinsing are circulated after passing through filter screens and grates to remove label paper from the water.
6. When the machine stops, the softened water supply for rinsing is interlocked with the whole machine. When the machine stops, the rinse water supply valve closes, so no rinse water flows into the hot water and warm water tanks, and no excess water flows out of the overflow port, resulting in no water outflow at the bottle washer exit. In fact, the overflow water can also be added to the second soaking tank, and excess water from the second soaking tank can flow into the first soaking tank, thereby achieving water conservation in bottle washing.