초록 ▼

A thermoelectric Peltier heat transfer device is used to treat a fluid, such as a photographic processing solution to reduce or prevent biogrowth. The device include both hot and cold sides that are in direct fluid flow communication so that the same fluid is treated on both sides of the device. The

A thermoelectric Peltier heat transfer device is used to treat a fluid, such as a photographic processing solution to reduce or prevent biogrowth. The device include both hot and cold sides that are in direct fluid flow communication so that the same fluid is treated on both sides of the device. The treated fluid is subjected to flash pasteurization on the hot side of the device, and immediately and rapidly cooled on the cold side without loss of volume. Thus, the same fluid is treated on both sides of the heat transfer device in a closed system before being returned to desired chemical, photographic or other processes.

대표청구항 ▼

[ We claim:] [1.] A thermoelectric Peltier heat transfer device having a cold side and a hot side in direct fluid flow communication so that the same fluid entering the heat transfer device is first treated on the hot side and then treated on the cold side of said heat transfer device, and further c

[ We claim:] [1.] A thermoelectric Peltier heat transfer device having a cold side and a hot side in direct fluid flow communication so that the same fluid entering the heat transfer device is first treated on the hot side and then treated on the cold side of said heat transfer device, and further comprising means for passing the fluid directly from thermal contact with said hot side to thermal contact with said cold side.