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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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公开(公告)号：US5121611A
公开(公告)日：1992-06-16
申请号：US603533
申请日：1990-10-25
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：US5199279A
公开(公告)日：1993-04-06
申请号：US744483
申请日：1991-08-13
申请人： Martin M. Reynolds
发明人： Martin M. Reynolds
摘要： A drum contact freezer system which reduces or eliminates a stagnant layer of refrigerant on an interior surface of the drum freezers is provided. A boiling refrigerant is sprayed into the interior of the drum freezers to scrub an interior surface thereof having the stagnant layer. This scrubbing reduces or eliminates the stagnant layer and thus provides an enhanced rate of heat transfer. The boiling refrigerant is preferably in a temperature range of approximately -100.degree. F. to -40.degree. F. at or near atmospheric pressure. Additionally, the boiling refrigerant may be circulated within the drum freezers by providing troughs on the interior surface thereof to help lift the boiling refrigerant and prolong contact between the boiling refrigerant and the interior surface of the drum freezers to provide a further enhanced rate of heat transfer. The material to be frozen may be provided on an outer surface of the drum freezers using a drop nose feed conveyor, soft sponge rollers, or a sprayer assembly depending upon the type of material to be frozen.
摘要翻译： 提供了一种鼓式接触冷冻系统，其减小或消除了在滚筒冷冻机的内表面上的制冷剂停滞层。 沸腾的制冷剂被喷射到滚筒冷冻机的内部以洗涤其具有停滞层的内表面。 该洗涤减少或消除了停滞层，因此提供了增加的热传递速率。 沸腾的制冷剂优选在大气压或接近大气压的约-100°F至-40°F的温度范围内。 此外，沸腾的制冷剂可以在滚筒式冷冻机内循环，在其内表面上设置槽，以帮助提升沸腾的制冷剂并延长沸腾制冷剂与滚筒式冷冻机的内表面之间的接触，从而进一步提高传热速率 。 可以使用落鼻进料输送机，软海绵辊或喷雾器组件根据要冷冻的材料的类型将待冷冻的材料设置在滚筒冷冻机的外表面上。
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公开(公告)号：US4783972A
公开(公告)日：1988-11-15
申请号：US114228
申请日：1987-10-29
CPC分类号： F25D3/11 , F25D2317/0681
摘要： A cryogenic freezer having a thermally insulated tunnel-like enclosure with an entrance and an exit and means for conveying products being frozen therethrough. Products are contacted with liquid cryogen at a region generally near the entrance and a blower located closer to the entrance than to the exit controls flow of cryogen vapor. Upstream and downstream baffles and dampers associated with blower are linked together for complementary movement to selectively regulate the upstream and downstream flow of vapor discharged from the blower. Additional blowers circulate the cold cryogenic vapor transverse to the direction of the conveying means. The temperature of vapor leaving the region of the entrance is monitored the orientation of the baffle and damper arrangement is adjusted in accordance with the temperature monitored. The food products can be contacted by liquid nitrogen in a reservoir facilitates cleaning and retards inefficient vaporization.
摘要翻译： 具有具有入口和出口的隔热隧道状外壳的低温冷冻器以及用于输送被冷冻的产品的装置。 产品在通常靠近入口的区域和位于入口处更靠近冷冻剂蒸气的出口控制流动的鼓风机处与液体冷冻剂接触。 与鼓风机相关联的上游和下游挡板和阻尼器连接在一起用于互补运动，以选择性地调节从鼓风机排出的蒸气的上游和下游流动。 另外的鼓风机将冷的低温蒸气横向于传送装置的方向。 监测离开入口区域的蒸汽的温度，对挡板的方向进行监测，根据监测的温度调节阻尼器装置。 食品可以通过液氮在储存器中接触，有助于清洁并延缓低效汽化。
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公开(公告)号：US5421168A
公开(公告)日：1995-06-06
申请号：US207019
申请日：1994-03-04
申请人： Martin M. Reynolds
发明人： Martin M. Reynolds
摘要： A freezer system which partially freezes food products through conductive heat transfer with rotating contact freezers prior to complete freezing of the food products in an enclosed convection freezer. Food products sequentially contact outer surfaces of two rotating contact freezers, which partially freezes the food products to first and second predetermined depths. The partially frozen food products then enter an enclosed convection freezer for complete freezing. Partial freezing of the food products prior to a complete freeze of the food products provides for a greatly increased rate of production of high quality frozen food products.
摘要翻译： 一种冷冻系统，在封闭的对流式冷冻机中完全冷冻食品之前，通过带有旋转接触式冷冻机的导电传热部分地将食品冻结。 食品顺序地接触两个旋转接触式冷冻机的外表面，其将食品部分地冻结到第一和第二预定深度。 然后，部分冷冻的食品进入封闭的对流冷冻室，完全冷冻。 在食品完全冷冻之前部分冷冻食品可大大提高高品质冷冻食品的生产速度。
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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：US4366178A
公开(公告)日：1982-12-28
申请号：US257898
申请日：1981-04-27
IPC分类号： A21D15/02
CPC分类号： A21D15/02
摘要： After baking bread dough goods in an oven at about 375.degree. F., their temperature is lowered to at least about 120.degree. F., and they are then cryogenically cooled to about 45.degree. F. or below in about 5 to about 15 minutes. The baked goods are then maintained at a temperature of about 37.degree. F. to about 45.degree. F. for at least about 25 minutes to effect substantial starch crystallization; after which time, slicing, bagging and freezing are carried out. Cryogenic cooling is preferably effected in a CO.sub.2 cooler, and the cooled baked goods are maintained at about 40.degree. F. for between about 25 and about 60 minutes prior to freezing by movement along an insulated conveyor which is cooled by circulation therethrough of cold CO.sub.2 vapor exhaust from the CO.sub.2 cooler.
摘要翻译： 在约375°F的烘箱中烘烤面包面包制品后，将其温度降至至少约120°F，然后在约5至约15分钟内将其低温冷却至约45°F或更低。 然后将烘烤的物品保持在约37°F至约45°F的温度下至少约25分钟以进行显着的淀粉结晶; 之后，进行切片，装袋和冷冻。 低温冷却优选在CO 2冷却器中进行，并且冷冻的烘焙食品在冷冻之前保持在约40°F约25至约60分钟之间，通过沿着绝热输送机的运动而保持冷却，冷却的CO 2蒸气通过其循环冷却 二氧化碳冷却器排气。
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