公开(公告)号：US5884841A

公开(公告)日：1999-03-23

申请号：US845760

申请日：1997-04-25

申请人： H. Ronald Ratnik ,  Louis N. Rapp ,  Timothy C.Y. Wang

发明人： H. Ronald Ratnik ,  Louis N. Rapp ,  Timothy C.Y. Wang

IPC分类号： F25C3/04

CPC分类号： F25C3/04 ,  F25C2303/0481

摘要： Snow-making apparatus comprises the combination of a bulk water nozzle for projecting a spray of water particles into the air, and a plurality of nucleators for injecting ice particles (nuclei) into the spray to provide nucleation sites about the water particles freeze and form snow particles or crystals. Each nucleator comprises discrete nozzles for respectively projecting air and water particles to a location at which they collide in the open air to form ice particles. Because the ice particles are formed "externally" of any housing, the "freeze-up" problem associated with the "internal-mix" nucleators of the prior art is avoided. Preferably, each of the water nozzles of the external mix nucleators projects a relatively thin "sheet" of water which collides with a similar pattern of compressed air which acts (a) to break-up the water into relatively tiny droplets (e.g. 5-100 microns in size) which quickly freeze to form the ice nuclei of about the same size, and (b) to project a relatively flat pattern of ice nuclei towards the bulk water spray.

摘要翻译： 制雪设备包括用于将水粒子喷射到空气中的散装水喷嘴和用于将冰颗粒（核）注入喷雾器中的多个成核剂的组合，以提供围绕水粒子的成核位置的冷冻和形成雪 颗粒或晶体。 每个成核剂包括用于分别将空气和水颗粒投射到它们在露天空气中碰撞的位置以形成冰颗粒的离散喷嘴。 因为冰颗粒是由外壳形成的，所以避免了与现有技术的“内部混合”成核剂有关的“冻结”问题。 优选地，外部混合物成核剂的每个水喷嘴投射相对薄的“片”水，其与相似的压缩空气模式相撞，其作用为（a）将水分解成相对小的液滴（例如5-100 微小尺寸），其迅速冷冻以形成大约相同尺寸的冰核，和（b）将相对平坦的冰核图案投射到大量喷水。