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公开(公告)号：US20140308423A1
公开(公告)日：2014-10-16
申请号：US14315086
申请日：2014-06-25
IPC分类号： A23G9/46
摘要： Disclosed are methods and apparatus for forming frozen foam products, including edible products, using air or gases or gas mixtures having an average molecular weight larger than that of air, wherein the products contain bubbles having a reduced average size preferably in a narrow size range.
摘要翻译： 公开了使用平均分子量大于空气的空气或气体或气体混合物形成冷冻泡沫产品的方法和设备，包括食用产品，其中产品含有平均尺寸较小的气泡，优选地在窄尺寸范围内。
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12.发明授权Method and apparatus for retention of a refrigerant fluid in a refrigeration enclosure 失效用于将制冷剂流体保持在冷藏箱中的方法和装置
公开(公告)号：US5966946A
公开(公告)日：1999-10-19
申请号：US92933
申请日：1998-06-08
CPC分类号： F25D29/001 , F25D3/11
摘要： The method of the invention is based on the comparison of local vapor concentrations at the inlet and outlet refrigeration ports and taking action based on that comparison. Control apparatus incorporating the invention is installed inside a refrigeration enclosure, adjacent to a port, preferably at the lowermost port. If the enclosure contains multiple ports at similar height, then each port has a form of the control apparatus attached to it. The control apparatus adjusts a flow of vapor leaving the interior of the enclosure. The control apparatus includes a duct assembly and a blower system. The bottom portion of the duct assembly is a tunnel enclosure through which a conveyor belt passes. Connected to an inside edge of the tunnel enclosure is a duct that extends upward from the conveyor belt. A blower for this duct either sucks vapor away from the conveyor belt or blows vapor from the enclosure interior toward the belt. Regardless of the flow direction, a vapor curtain forms inside the tunnel enclosure and represents a transitional region from all vapor to all air. Control of the blower for the duct assembly is based on vapor concentrations in the tunnel enclosures adjacent to each port. A microprocessor compares measured concentration levels and alters the blower motor frequency in such a manner as to minimize the difference in concentration levels at each port.
摘要翻译： 本发明的方法是基于对入口和出口制冷端口的局部蒸汽浓度的比较，并基于该比较采取行动。 结合本发明的控制装置安装在与端口相邻的制冷机壳中，优选在最下端的端口。 如果机箱包含多个类似高度的端口，则每个端口都具有连接到其上的控制设备的形式。 控制装置调节离开外壳内部的蒸气流。 控制装置包括管道组件和鼓风机系统。 管道组件的底部是输送带通过的隧道外壳。 连接到隧道外壳的内边缘是从传送带向上延伸的管道。 用于该管道的鼓风机将蒸汽从传送带吸入或从外壳内部朝向带吹送蒸气。 不管流动方向如何，蒸气幕形成在隧道外壳内，代表从所有蒸气到全部空气的过渡区域。 用于管道组件的鼓风机的控制基于与每个端口相邻的隧道外壳中的蒸汽浓度。 微处理器比较测量的浓度水平并改变鼓风机电机的频率，以使每个端口的浓度水平差异最小化。
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公开(公告)号：US5156006A
公开(公告)日：1992-10-20
申请号：US795111
申请日：1991-11-20
申请人： Walter C. Broderdorf , Jose M. N. Camacho , Stephen F. Donohue , Donald S. Finan , Robert J. Ogarek , Martin M. Reynolds , Gary D. Lang
发明人： Walter C. Broderdorf , Jose M. N. Camacho , Stephen F. Donohue , Donald S. Finan , Robert J. Ogarek , Martin M. Reynolds , Gary D. Lang
摘要： Refrigeration apparatus for cooling or freezing products such as protein materials includes a drum through which heat transfer fluid is circulated. A belt is wrapped around part of the drum surface and the product to be refrigerated is applied to the drum surface, being pressed thereagainst by the belt. Either liquid or triple point carbon dioxide is circulated through the drum to cool the product in contact therewith. Other heat transfer fluids such as D-Limonene or DOWTHERM may also be circulated through the drum. A tank and related apparatus for cooling the heat transfer fluid is also disclosed.
摘要翻译： 用于冷却或冷冻诸如蛋白质材料的产品的制冷装置包括传热流体循环通过的滚筒。 皮带被卷绕在滚筒表面的一部分上，并且要冷藏的产品被施加到滚筒表面，并被皮带压在其上。 液体或三重点二氧化碳通过鼓循环以冷却与其接触的产品。 其它传热流体如D-Limonene或DOWTHERM也可以循环通过滚筒。 还公开了用于冷却传热流体的罐和相关装置。
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公开(公告)号：US11076620B2
公开(公告)日：2021-08-03
申请号：US16133013
申请日：2018-09-17
摘要： Disclosed are methods and apparatus for forming frozen food products, especially frozen foamed food products wherein the products contain bubbles having a reduced average size preferably in a narrow size range or contain ice crystals having reduced size.
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15.发明申请METHOD AND APPARATUS FOR CONTACT REFRIGERATION IN CRYOGENIC SOLID BELT FREEZER 审中-公开低温固体带式冷冻机接触式制冷方法及装置公开(公告)号：US20140060088A1
公开(公告)日：2014-03-06
申请号：US14074864
申请日：2013-11-08
IPC分类号： F25D3/11
CPC分类号： F25D3/11
摘要： Methods and apparatus for contact freezing a food product. A conveyor belt or other support may have an active region that supports materials on an outer surface. Liquid cryogen may be provided in bulk contact with an inner surface of the active region via splashing, agitation, pumping, gravity feed, and the like.
摘要翻译： 用于接触冷冻食品的方法和装置。 输送带或其它支撑件可以具有支撑外表面上的材料的有源区域。 液体冷冻剂可以通过飞溅，搅拌，泵送，重力进料等与活性区域的内表面大量接触来提供。
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公开(公告)号：US5577392A
公开(公告)日：1996-11-26
申请号：US435333
申请日：1995-05-05
申请人： Sidney V. Engler , Clay Palbiski , Gary D. Lang
发明人： Sidney V. Engler , Clay Palbiski , Gary D. Lang
CPC分类号： F25D3/11 , A23B4/064 , F25D2400/28
摘要： A chiller or tunnel freezer for rapid chilling of chicken carcasses and the like wherein a cryogen such as liquid nitrogen or carbon dioxide snow is sprayed directly on the carcasses or other items as they travel through a passage or tunnel, and wherein vortical flow of air and/or vaporized cryogen is effected within the chiller to continuously sweep the bottom surface of the chiller and recirculate cryogen from the bottom surface, thereby avoiding accumulation of liquid nitrogen or CO.sub.2 snow on the bottom surface. The vortical flow is preferably provided by one or more fans disposed within the tunnel. A deflector may be provided on the tunnel interior to direct recirculated cryogen onto the items being chilled. A damper may be provided to regulate fan output and thereby enable optimization of operational efficiency.
摘要翻译： 一种用于快速冷冻鸡肉尸体等的冷冻器或隧道式冷冻机，其中诸如液氮或二氧化碳雪的冷冻剂在其行进通过通道或隧道时直接喷洒在屠体或其他物品上，并且其中空气和 /或蒸发的冷冻剂在冷却器内进行，以连续扫掠冷却器的底表面并从底表面再循环冷冻剂，从而避免液氮或二氧化碳积雪在底面上。 旋涡流优选由设置在隧道内的一个或多个风扇提供。 可以在隧道内部设置偏转器，以将再循环的冷冻剂引导到待冷冻的物品上。 可以设置阻尼器来调节风扇输出，从而实现运行效率的优化。
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公开(公告)号：US4955206A
公开(公告)日：1990-09-11
申请号：US443903
申请日：1989-11-30
申请人： Gary D. Lang , Benjamin Zyer
发明人： Gary D. Lang , Benjamin Zyer
CPC分类号： F25D29/001 , F25D3/11
摘要： A cryogenic freezer apparatus for food products, including a thermally insulated enclosure and conveyor means for conveying products through the enclosure. A cryogen unit in the enclosure produces cryogen vapor near the enclosure entrance, and a blower unit is located in the enclosure adjacent the entrance thereof. The blower unit is selectively reconfigurable in response to a blower control signal to selectively direct cryogen vapor in varying directions, drawing cryogen vapor away from a first portion of the enclosure and blowing cryogen vapor toward a second portion of the enclosure. A photocell unit outside the enclosure, adjacent the entrance thereof, detects cryogen vapor exiting the enclosure entrance and generates at least one sensor output signal in response thereto, being indicative of the amount of cryogen vapor exiting. A control unit is coupled to the photocell unit and to the blower unit for generating a blower control signal in response to the sensor output signal so that, with increasing vapor detected outside the entrance of the enclosure, the blower unit draws cryogen vapor away from the enclosure entrance. Also, upon detecting a decreasing amount of cryogen vapor exiting from the entrance of the enclosure, the blower unit directs less cryogen vapor away from the enclosure entrance to assure that intrusion of the ambient environment through the enclosure entrance is prevented.
摘要翻译： 一种用于食品的低温冷冻装置，包括隔热外壳和用于通过外壳输送产品的输送装置。 外壳中的冷冻剂单元在外壳入口附近产生冷冻剂蒸汽，并且鼓风机单元位于与其入口相邻的外壳中。 鼓风机单元响应于鼓风机控制信号而选择性地可重新配置，以选择性地在不同的方向上引导低温蒸汽，将冷冻剂蒸气从壳体的第一部分抽出，并将冷冻剂蒸气朝向外壳的第二部分吹送。 外壳外部的光电池单元在其入口附近，检测出离开外壳入口的冷冻剂蒸气，并产生响应于此的至少一个传感器输出信号，指示出现的冷冻剂蒸气的量。 控制单元耦合到光电管单元和鼓风机单元，用于响应于传感器输出信号产生鼓风机控制信号，使得随着在外壳入口外部检测到增加的蒸汽，鼓风机单元将冷却剂蒸气从 外壳入口。 此外，在检测到从外壳的入口排出的低温冷凝物的量减少时，鼓风机单元将较少的冷冻剂蒸气引导离开外壳入口，以确保防止周围环境侵入外壳入口。
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公开(公告)号：US4953365A
公开(公告)日：1990-09-04
申请号：US373056
申请日：1989-06-28
申请人： Gary D. Lang , Donald S. Finan , George D. Rhoades
发明人： Gary D. Lang , Donald S. Finan , George D. Rhoades
CPC分类号： A23L3/361 , F25D13/067 , F25D25/04 , F25D3/11 , B65G2207/24
摘要： A food freezer having a thermally insulated enclosure wherein an endless conveyor having a lower loading section, a main helical section and an uppermost unloading section is primarily driven by engagement between its inner edge and the sidewall of a rotatable center cage, which includes a plurality of uniformly spaced apart vertical bars. The lower end of the center cage can be blocked, and a centrifugal blower is axially located at the upper end of the cage to suck gas from the interior of the cage and discharge it horizontally outward along the undersurface of the top wall so that it flows outward, then downward and, finally, radially inward in an overall generally toroidal pattern through the tiers of the helical belt section where it withdraws heat from the freezes the food products being carried therealong. Various arrangements, e.g., adjustable restrictors, are illustrated for creating vertical gradients in the radial inflow of gas through the helical section so that the cold gas flows inward at a greater rate in lower regions of the helical section than in the upper region. Cryogen injection devices for spraying a cryogen, such as liquid CO.sub.2 or liquid N.sub.2, radially inward to impinge upon the food products on the belt, may be located at selected positions about the perimeter and at various vertical levels. Radial inflow of gas adds to the effectiveness of the impinging spray against the food products; however, the overall freezer construction is also advantageously employed with mechanical cooling of the gaseous atmosphere via one or more heat exchange coils.
摘要翻译： 一种具有绝热外壳的食品冷冻机，其中具有下加载部分，主螺旋部分和最上部卸载部分的环形输送机主要由其内边缘和可旋转中心保持架的侧壁之间的接合驱动，其包括多个 均匀分隔的垂直条。 中心笼的下端可以被阻挡，离心鼓风机轴向位于保持架的上端，以从笼的内部吸入气体并沿着顶壁的下表面向外水平地排出，使其流动 向外，然后向下并且最后径向向内，通过螺旋带部分的各层，其中其从其中抽出热量使其沿着被携带的食品冷冻。 示出了各种布置，例如可调节的限制器，用于在通过螺旋部分的气体的径向流入中产生垂直梯度，使得冷气体在螺旋部分的下部区域中以比在上部区域更低的速度向内流动。 用于喷射冷却剂（例如液体CO 2或液体N 2）径向向内以撞击在带上的食品的低温注射装置可以位于围绕周边和各种垂直水平的选定位置。 气体的径向流入增加了对食品的冲击喷雾的有效性; 然而，整体冷冻结构也有利地用于经由一个或多个热交换盘管的气态气氛的机械冷却。
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公开(公告)号：US4739623A
公开(公告)日：1988-04-26
申请号：US61676
申请日：1987-06-11
CPC分类号： F25D3/11 , B65G2207/24
摘要： A cabinet freezer efficiently utilizes a liquid cryogen refrigerant in conjunction with a spiral conveyor which conveys a product load through a temperature gradient within the freezer. The freezer has a lower inlet and an upper outlet for the conveyor and food load thereon. The escape of cryogen vapors created in the freezer from the liquid cryogen is controlled such that at least about 80% of the vapors exit through the upper outlet which is at the warmest zone established as a part of the temperature gradient in the freezer.
摘要翻译： 机柜式冷冻机有效地利用液体冷冻剂制冷剂与螺旋输送机结合，该输送机将产品负载通过冷冻器内的温度梯度。 冷冻器具有用于输送机的下入口和上出口，并且其上具有食物负载。 控制在冷冻器中从液体冷冻剂中产生的冷冻剂蒸气的逸出，使得至少约80％的蒸气通过作为冷冻器中温度梯度的一部分建立的最高温区域的上部出口排出。
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20.发明申请METHOD AND APPARATUS FOR CONTACT REFRIGERATION IN CRYOGENIC SOLID BELT FREEZER 审中-公开低温固体带式冷冻机接触式制冷方法及装置公开(公告)号：US20120291456A1
公开(公告)日：2012-11-22
申请号：US13110368
申请日：2011-05-18
CPC分类号： F25D3/11
摘要： Methods and apparatus for contact freezing a food product. A conveyor belt or other support may have an active region that supports materials on an outer surface. Liquid cryogen may be provided in bulk contact with an inner surface of the active region via splashing, agitation, pumping, gravity feed, and the like.
摘要翻译： 用于接触冷冻食品的方法和装置。 输送带或其它支撑件可以具有支撑外表面上的材料的有源区域。 液体冷冻剂可以通过飞溅，搅拌，泵送，重力进料等与活性区域的内表面大量接触来提供。
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