FIELD: separation; mixing.
SUBSTANCE: mobile spray dispenser comprises a fluid circulation system and a heating unit. Fluid circulation system has a motorised pump capable of circulating fluid from a fluid reservoir in a high-pressure spray mode and a low-pressure recirculation mode, and of providing the fluid to a sprayer. Motorised pump draws lower power in the low- pressure recirculation mode than in the high-pressure spray mode. Heating unit is disposed within the fluid circulation system to heat the fluid to a target temperature, and comprises a primary heater and a boost heater. Primary heater is configured to be active during both the high-pressure spray mode and the low-pressure recirculation mode. Boost heater is in fluid series with the primary heater, and is configured to be active only during the low-pressure recirculation mode.
EFFECT: invention improves fluid flow and increases spraying efficiency.
20 cl, 6 dwg
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