公开(公告)号：US5775111A

公开(公告)日：1998-07-07

申请号：US738116

申请日：1996-10-25

申请人： Paul R. Franklin

发明人： Paul R. Franklin

IPC分类号： B60P3/20 ,  C01B32/55 ,  F25D3/06 ,  F25D3/12 ,  F25C3/00

CPC分类号： B60P3/20 ,  C01B31/22 ,  F25D3/06 ,  F25D3/125

摘要： A portable apparatus and method for discharge of CO.sub.2 snow or a combination of CO.sub.2 and ice along a generally horizontal path over and onto a load within an elongated insulated container from one partially open end of the container toward the other closed end thereof and in a manner to form either a blanket of CO.sub.2 snow or a blanket of ice over the load within the container. The apparatus includes a rectangular or cylindrical duct into which liquid CO.sub.2 is discharged adjacent one closed end for impact against the walls of the duct before exiting in a CO.sub.2 snow and gas stream from the opposite open end. A transverse manifold is mounted adjacent the open end to jet spray water feed to the manifold into contact with the CO.sub.2 stream at an acute angle, preferably about 15.degree..

摘要翻译： 一种便携式装置和方法，用于沿着大致水平的路径排放二氧化碳雪或二氧化碳和冰的组合，该细长绝缘容器从容器的一个部分开口端朝向另一个封闭端，并且以一种方式 在容器内的负载上形成二氧化碳积雪或覆盖的毯子。 该装置包括矩形或圆柱形管道，液体CO 2在其一个封闭端附近被排放到其中，用于在从相对的开口端排出CO 2雪和气流之前冲击管道的壁。 横向歧管安装在开口端附近，以喷射喷射水进入歧管，与CO2流以锐角接触，优选约15°。

公开(公告)号：US5301512A

公开(公告)日：1994-04-12

申请号：US758619

申请日：1991-09-12

申请人： Yasuo Yamamoto

发明人： Yasuo Yamamoto

IPC分类号： F25C3/00 ,  F25C3/04

CPC分类号： F25C3/04

摘要： A method and apparatus for continuously making snow at all times of the year comprises the creation of countless ice crystals from a mist in a controlled environment. The mist may have a ice crystal nucleus added to it to facilitate the development of the ice crystal at higher temperatures. The ice crystals are directed into an ultrasonic field generated by an transducer where the fall rate of the crystals levitated. While the crystals are within the ultrasonic field, the crystals grow into snowflakes as a result of collisions with other crystals. The snowflakes eventually fall out of the ultrasonic field as snow having a more natural appearance than more conventional snow-making techniques.

摘要翻译： 在一年中的任何时候连续制作雪的方法和装置包括在受控环境中从雾中产生无数冰晶。 雾可能具有加入其中的冰晶核，以促进冰晶在较高温度下的发展。 冰晶被引导到由晶体悬浮的下降速率的换能器产生的超声场中。 当晶体在超声场内时，由于与其他晶体的碰撞，晶体生长成雪花。 雪花最终落在超声波领域之外，因为具有比传统制雪技术更自然的外观。

公开(公告)号：US4305256A

公开(公告)日：1981-12-15

申请号：US120205

申请日：1980-02-11

申请人： Roger E. Anderson ,  Eugene M. Vanderwall

发明人： Roger E. Anderson ,  Eugene M. Vanderwall

IPC分类号： C06B47/12 ,  C10L3/06 ,  C10L7/02 ,  F25C3/00

CPC分类号： C06B47/12 ,  C10L3/06 ,  C10L7/02

摘要： Disclosed is a cryogenic gel, and a process for making such a gel from a liquid cryogen having at least a methane component, which normally comprises a majority of the cryogenic liquid, by flash vaporizing the cryogen so that a relatively small portion of the weight of the cryogen becomes vaporized while a remainder forms a mist of small cryogen droplets suspended in the vapor. After flash vaporization, a gelling agent is injected into the cryogen vapor-mist mixture. The gelling agent is present so that it forms between about 0.1% to about 25% (by weight) of the resulting gel and is selected so that it is a solid at the temperature of the liquid cryogen and a liquid or a gas at ambient temperature. Water and methyl alcohol are preferred gelling agents. After the injection of the gelling agent the mixture is segregated into a gaseous phase and a condensed phase or gel comprising the liquid cryogen droplets and the injected gelling agent.

摘要翻译： 公开了一种低温凝胶，以及从具有至少甲烷成分的液体致冷剂制备这种凝胶的方法，该组分通常包含大部分低温液体，通过使冷冻剂闪蒸而使其相对较小的一部分 冷却剂变得蒸发，而剩余部分形成悬浮在蒸气中的小型致冷剂液滴的雾。 闪蒸后，将胶凝剂注入冷冻剂蒸汽雾混合物中。 存在胶凝剂，使得其形成所得凝胶的约0.1％至约25％（重量），并且被选择为使其在液体冷冻剂的温度下为固体，并且在环境温度下为液体或气体 。 水和甲醇是优选的胶凝剂。 在注入胶凝剂之后，将混合物分离成气相和包含液体冷冻剂液滴和注入的胶凝剂的凝聚相或凝胶。