-
公开(公告)号：US6073864A
公开(公告)日：2000-06-13
申请号：US11131
申请日：1998-05-11
申请人： Rudolf Berghoff , Reinhard Balduhn
发明人： Rudolf Berghoff , Reinhard Balduhn
CPC分类号： C01B31/22 , F25D29/001 , F25D3/127
摘要： An expansion nozzle (20) for making carbon-dioxide snow from liquid carbon dioxide, for spraying refrigerated or frozen items (2), nozzle has an integrated metering valve (30) with a discharge aperture (32), an intake-side valve seat (33), and a valve needle (31) adjustable relative to the valve seat (33). The needle projects into the discharge aperture (32). A jet shaper (60) adjoins the discharge channel (35), in which the liquid carbon dioxide expands within a cross section widened at an end thereof. An expansion region (62) with a diverging cross section has a rectangular flow cross section.
摘要翻译： PCT No.PCT / EP97 / 02612 Sec。 371日期：1998年5月11日 102（e）日期1998年5月11日PCT提交1997年5月22日PCT公布。 第WO97 / 46839号公报 日期1997年12月11日，用于从液态二氧化碳制造二氧化碳雪，用于喷射冷冻或冷冻物品（2）的膨胀喷嘴（20），喷嘴具有带有排放孔（32）的集成计量阀（30） 进气侧阀座（33）和相对于阀座（33）可调节的阀针（31）。 针突出到排出孔（32）中。 喷射整形器（60）邻近排放通道（35），其中液体二氧化碳在其末端加宽的横截面中膨胀。 具有发散横截面的膨胀区域（62）具有矩形的流动横截面。
-
公开(公告)号：US5961041A
公开(公告)日：1999-10-05
申请号：US997882
申请日：1997-12-24
CPC分类号： F25C3/04 , C01B31/22 , F25C2303/044
摘要： Disclosed are a method of making CO.sub.2 snow by injecting liquefied CO.sub.2 into a snow horn from the ceiling of the snow horn having an opening at the lower end to effect adiabatic expansion and an apparatus therefor. Liquefied CO.sub.2 is injected radially outward so that it may flow along the curved internal surface of the ceiling and continuously along the internal surface of the snow horn and that effusive flows of liquefied CO.sub.2 may flow independently at the inner upper part of the snow horn and may be combined partly with one another at the inner lower part of the snow horn.
摘要翻译： 本发明公开了一种通过在下端具有开口的雪橇天花板上将液化二氧化碳喷射到雪橇上以实现绝热膨胀的方法来制造二氧化碳雪的方法及其装置。 液化二氧化碳被径向向外注入，使其可沿着天花板的弯曲内表面流动并且沿着雪橇的内表面连续地流动，并且液化二氧化碳的有效流动可以独立地在雪哨的内部上部流动，并且可能 在雪角的内部下部部分地相互组合。
-
公开(公告)号：US5548974A
公开(公告)日：1996-08-27
申请号：US475929
申请日：1995-06-07
申请人： George D. Rhoades
发明人： George D. Rhoades
CPC分类号： C01B31/22
摘要： A method and apparatus for producing solid carbon dioxide snow blocks comprising a mold having a plurality of separate mold cavities, and a liquid CO.sub.2 manifold providing one or more injection nozzles in each of the mold cavities. A vent/vapor heat exchange with incoming liquid may be employed to improve liquid-to-snow conversion rate. The manifold may take a pressure drop turn at each branch to assure that each nozzle receives an adequate supply of liquid CO.sub.2. Each nozzle may have multiple orifices to assure that the snow is dispersed relatively evenly in each mold cavity. Each of the orifices may be located on a relative high point relative to the manifold to facilitate clearance of dry ice blockages in the manifold. A timer may be used to regulate injection. As an alternative or as a backup, fullness of one or more mold cavities may be detected by a sensor, and means may be provided to discontinue injection when one or more mold cavities have been filled.
摘要翻译： 一种用于生产固体二氧化碳积雪块的方法和装置，其包括具有多个分开的模腔的模具，以及在每个模腔中提供一个或多个注射喷嘴的液体CO 2歧管。 可以采用与进入液体的排气/蒸气热交换来提高液体对雪的转化率。 歧管可以在每个分支处进行压降转向，以确保每个喷嘴接收足够的液体CO2供应。 每个喷嘴可以具有多个孔以确保雪相对均匀地分散在每个模腔中。 每个孔可以位于相对于歧管的相对高点上，以便于清除歧管中的干冰堵塞。 定时器可用于调节注射。 作为替代或备用，可以通过传感器检测一个或多个模腔的丰满度，并且可以提供装置以在已经填充一个或多个模腔时停止注射。
-
公开(公告)号：US5528907A
公开(公告)日：1996-06-25
申请号：US225708
申请日：1994-04-11
CPC分类号： C01B31/22
摘要： A new METHOD AND APPARATUS FOR AUTOMATICALLY PRODUCING A SMALL BLOCK OF SOLID CARBON DIOXIDE is disclosed and described. The new method and apparatus is comprised of an electrical solenoid operated liquid fill valve, a dry ice block forming chamber having porous walls and/or lining attached to or forming its walls, a hydraulic cylinder and ram, a hydraulic pump assembly, a dry ice block forming chamber door, an electronic solenoid operated pneumatic valve, a pneumatic cylinder and ram, and a digital electronic microcontroller. A pressurized cryogenic Dewar-type tank containing liquefied carbon dioxide provides the cold carbon dioxide input fluid to this invention.In operation, liquid carbon dioxide is forced out of the pressurized Dewar-type tank to form carbon dioxide snow, with said snow being deposited into a dry ice block forming chamber having porous walls and/or lining attached to or forming its walls. As the carbon dioxide snow flows into said dry ice forming chamber, carbon dioxide snow and gaseous carbon dioxide are produced. The porous walls of the dry ice block forming chamber allow the gaseous carbon dioxide to pass through its pores and to escape into the surrounding atmosphere while trapping the carbon dioxide snow within the confines of said dry ice forming chamber. After the liquid carbon dioxide has been allowed to flow to deposit carbon dioxide snow in said dry ice forming chamber for a pre-selected length of time, a hydraulic pump is activated to cause a ram to be forced into one end of the dry ice block forming chamber. The carbon dioxide snow compacting plate, attached to the end of the hydraulic ram, moves through the dry ice block forming chamber and compresses the low density carbon dioxide snow within the forming chamber into a solid block of high density carbon dioxide (dry ice). After the low density carbon dioxide snow has been formed into a high density block of solid carbon dioxide, the hydraulic ram forces the finished product out of the device and into a catch container. The hydraulic ram is then returned to its up-most starting position, and the system is reset to make it ready to make another block of solid carbon dioxide.
-
公开(公告)号：US4780119A
公开(公告)日：1988-10-25
申请号：US103724
申请日：1987-10-02
申请人： Robert K. Brooke
发明人： Robert K. Brooke
CPC分类号： C01B31/22
摘要： Carbon dioxide (CO.sub.2) solid discs (dry ice) are produced from liquid carbon dioxide injected into an extrusion cylinder in which the extrusion piston compresses dry snow and extrudes it through a fixed die, thereby producing pellets of dry ice which are fed by gravity into a forming cylinder chamber in which is operated a hydraulic cylinder compresses the pellets into discs. The operation is controlled by switches and hydraulic system.
摘要翻译： 二氧化碳（CO2）固体盘（干冰）由注射到挤出圆筒中的液态二氧化碳制成，其中挤压活塞压缩干燥的雪并将其挤出通过固定模具，从而产生通过重力进料的干冰颗粒 一个成型气缸室，其中液压缸被操作，将该颗粒压缩成盘。 操作由开关和液压系统控制。
-
公开(公告)号：US4727687A
公开(公告)日：1988-03-01
申请号：US681903
申请日：1984-12-14
申请人： David E. Moore
发明人： David E. Moore
摘要： Cryogenic cleaning apparatus using dry ice pellets having a pellet extruder and static means to break the extruded dry ice.
摘要翻译： 使用具有颗粒挤出机的干冰颗粒的低温清洁设备和用于破坏挤出的干冰的静态方法。
-
公开(公告)号：US4462423A
公开(公告)日：1984-07-31
申请号：US464975
申请日：1983-02-08
CPC分类号： C01B31/22 , Y10T137/85938
摘要： A closed bottom heat exchange tank is provided for containing CO.sub.2 snow and the tank includes upstanding and interconnected side wall portions and a top wall extending between and interconnecting the upper marginal edges of the side wall portions. A CO.sub.2 snow forming header pipe generally parallels and closely overlies the top wall and is removably anchored thereto by inverted U-shaped clamps secured to the top wall through the utilization of threaded fasteners. One end of the header pipe is open for sealed communication with a liquid CO.sub.2 supply line and the other end of the header pipe is closed. A plurality of depending tubular nipples including upper ends shaped to conform to the underside of the header pipe have the upper ends thereof secured to the header pipe at points spaced longitudinally therealong and the lower end portions of the nipples are loosely received downwardly through openings formed in the top wall of the heat exchange tank. The lower portion of the supply line is provided with small diameter jet discharge bores formed therethrough opening into the upper ends of the nipples and the lower ends of the nipples are diametrically enlarged and open downwardly toward the bottom of the tank.
摘要翻译： 提供封闭的底部热交换罐用于容纳二氧化碳雪，并且罐包括直立和互连的侧壁部分以及在侧壁部分的上边缘之间延伸并互相连接的顶壁。 二氧化碳积雪总管通常平行并紧密地覆盖在顶壁上，并且通过利用螺纹紧固件固定在顶壁上的倒置的U形夹具可移除地锚固在其上。 集管的一端开放，用于与液体二氧化碳供应管线密封连通，并且总管的另一端关闭。 多个垂直的管状接头，包括成形为符合集管的下侧的上端，其上端在其纵向间隔的位置处固定在集管上，并且接头的下端部松散地接收到下方， 热交换罐的顶壁。 供应管线的下部设置有小直径的喷射排出孔，其通过开口进入乳头的上端，并且奶嘴的下端沿径向扩大并朝向罐的底部向下敞开。
-
公开(公告)号：US3932155A
公开(公告)日：1976-01-13
申请号：US523385
申请日：1974-11-13
摘要： Methods for providing an expendable refrigerant which is emitted from a snow horn at a low velocity thereby enabling snow agglomeration at a close proximity to the horn exit and accurately delivering a charge of snow with minimum vapor loss. The desired snow is produced by introduction of the relatively warm liquid refrigerant into an insulated compartment and in heat exchange relation with a tube therein having a plurality of length/diameter ratios. The liquid refrigerant is effective to warm the tube walls and results in a slight cooling of such liquid which is then passed to a sub-cooler and returned to the tube inlet for expansion in several stages therein to form the snow. The product snow is emitted from this horn at a relatively low velocity and may be accurately directed into cavities of such products as eviscerated fowl. In automated systems, a plurality of horns may be selectively operated to inject snow into a plurality of food products or alternately, such horns may be operated intermittently to deposit a blanket of snow over food products to be chilled or a continuous ribbon of snow atop products on a moving conveyor.
摘要翻译： 提供从雪角以低速度发射的消耗性制冷剂的方法，从而使得能够在靠近喇叭出口处的雪团聚并且以最小的蒸气损失精确地输送积雪。 通过将相对温暖的液体制冷剂引入隔热隔室并与其中具有多个长度/直径比的管的热交换关系来产生所需的积雪。 液体制冷剂有效地加热管壁并导致这种液体的轻微冷却，然后将其传送到副冷却器并返回到管入口以在其中几段膨胀以形成雪。 产品积雪以相对低的速度从该喇叭发射，并且可以被精确地引导到诸如膛内家禽的产品的空腔中。 在自动化系统中，可以选择性地操作多个喇叭以将雪注射到多个食品中，或者替代地，这样的角可以间歇地操作以将雪覆盖在要冷却的食品上或连续的雪带上 在移动的输送机上。
-
-
-
-
-
-
-
-
搜索结果
64 条记录 (耗时 0.012 秒)
