| 摘要 |
<p>A liquid spraying system (10) for maintaining a predetermined amount of moisture in an environment, particularly suited for use on produce displayed in a produce display (50). The system (10) operates in a manner that purposely introduces air into liquid flowing through the system (10) to ultimately spray a fine mist into an environment. The use of a venturi injector (22) in a preferred embodiment allows for the introduction of air into the system (10) while eliminating the need for an added air compressor. The uniform mixture of air and water then flows through a liquid pump (26), and alternatively an expansion tank (66), and can be delivered to one or more nozzle assemblies (28) at a predetermined pressure. The air liquid mixture exits nozzles (31) in mist form that has small liquid droplets forming a fine mist which is propelled outward from the nozzle (31).</p> |
