Helical conveyor freezer
    41.
    发明授权
    Helical conveyor freezer 失效
    螺旋输送机冰柜

    公开(公告)号:US5205135A

    公开(公告)日:1993-04-27

    申请号:US791893

    申请日:1991-11-13

    申请人: Gary D. Lang

    发明人: Gary D. Lang

    摘要: A food freezer for continuous freezing of food products utilizing a helical conveyor for transporting the food products through an enclosure having a first cooling zone in which the food products are cooled sufficiently to freeze the exterior surface, and a second cooling zone in which the interior of the food products are frozen. Refrigeration apparatus cools an atmosphere gas within the enclosure and baffle means directs the coldest gas through the food products in the first cooling zone and the gas from the first cooling zone is circulated to the second cooling zone where it passes across the food products in a direction opposite to the direction of travel through the second cooling zone.

    摘要翻译: 一种食品冷冻机,用于使用螺旋输送机连续冷冻食品,所述螺旋输送机用于通过具有第一冷却区域的食品输送食物,所述第一冷却区域足以冷冻所述食品的外表面;以及第二冷却区域, 食品被冻结。 制冷装置冷却外壳内的气氛气体,并且挡板装置引导最冷气体通过第一冷却区域中的食品,并且来自第一冷却区域的气体循环到第二冷却区域,在该第二冷却区域,其沿着方向穿过食品 与通过第二冷却区的行进方向相反。

    Cooling apparatus
    42.
    发明授权
    Cooling apparatus 失效
    冷却装置

    公开(公告)号:US5156020A

    公开(公告)日:1992-10-20

    申请号:US618559

    申请日:1990-11-27

    IPC分类号: F25D3/10 A23L3/375 F25D3/11

    CPC分类号: F25D3/11 A23L3/375

    摘要: An apparatus for freezing foodstuffs includes a drum 1 mounted for rotary movement at an angle to the horizontal such that individual compartments 12 in the drum 1 successively descend into and rise from a vessel 11 containing cryogenic fluid. Frozen products tumble under gravity towards a central outlet 5 in one surface 4 of the drum, guided by the curved partitions 14 defining individual compartments 12.

    Workpiece chilling and shrinking
    43.
    发明授权
    Workpiece chilling and shrinking 失效
    工件寒冷萎缩

    公开(公告)号:US5083436A

    公开(公告)日:1992-01-28

    申请号:US538214

    申请日:1990-06-14

    IPC分类号: B23P11/02 F25D3/11

    CPC分类号: F25D3/11 B23P11/025

    摘要: An apparatus for chilling and shrinking workpieces being conveyed to a workstation on an assembly line comprises, a chilling chamber, a conveyer for transporting workpieces, at least one generally vertical conduit for transporting cryogenic liquid out of a bath to an outlet above the bath, wells for storing cryogenic fluid bath, baffles for slowing the counterflow of cryogenic vapor and a lid for maintaining vapor in the chilling chamber. The workpieces first go through the pre-cooling process where cryogenic vapor flows in a counterflow to chill the workpieces. The workpieces move through openings in the baffles, and after the pre-cooling process, the conveyer transports the workpieces to the cooling stage where baths of cryogenic liquid are stored in wells. Generally vertical conduits are immersed in the wells. The density of cryogenic fluid in the conduit is reduced by warm vapor, enabling the cryogen to flow up the conduit. Cryogen reaching the outlet above the bath is sprayed onto workpieces transported by the conveyer. Cryogenic vapor resulted from the spraying flows to the pre-cooling section where it forms the counterflow discussed above.

    摘要翻译: 用于冷却和收缩工件的装置被输送到装配线上的工作站,包括:冷却室,用于运输工件的输送机,用于将低温液体输送出浴的至少一个大致垂直的管道, 用于储存低温液体浴,用于减慢低温蒸气的逆流的挡板和用于保持冷却室中的蒸汽的盖子。 工件首先经过预冷处理,其中低温蒸汽在逆流中流动以冷却工件。 工件移动通过挡板中的开口,并且在预冷却过程之后,输送机将工件输送到冷却阶段,其中低温液体储存在井中。 通常将垂直导管浸入孔中。 导管中的低温流体的密度由于蒸汽冷却而减少,从而使冷冻剂能够流过导管。 到达浴室出口的低温冷却剂被喷洒到由输送机输送的工件上。 由喷雾产生的低温蒸汽流入预冷段,在此形成上述逆流。

    Multi-orifice manifold for balancing discharge of liquified gases
    45.
    发明授权
    Multi-orifice manifold for balancing discharge of liquified gases 失效
    用于平衡液化气体排放的多孔歧管

    公开(公告)号:US4925095A

    公开(公告)日:1990-05-15

    申请号:US193087

    申请日:1988-04-07

    申请人: Peter A. Students

    发明人: Peter A. Students

    IPC分类号: F17C9/00 F25D3/11

    摘要: A method and apparatus for balancing the discharge of liquified gases from a multi-orifice manifold. The manifold includes at least one main conduit each having a central axis, and two or more discharge conduits each having a central axis. Each discharge conduit projects from the main conduit in a manner whereby the central axis of each discharge conduit extends from the central axis of the main conduit. The discharge conduits are positioned about the central axis of the main conduit such that each central axis of a discharge conduit provides with respect to a substantially horizontal plane passing through the central axis of the main conduit, an included angle in the range of about -30.degree. to about -60.degree. relative to the horizontal plane. A discharge orifice is attached to each discharge conduit and is oriented to provide downward discharge.

    摘要翻译: PCT No.PCT / US86 / 02368 Sec。 371日期:1988年4月7日 102(e)日期1988年4月7日PCT 1986年11月3日PCT。一种用于平衡来自多孔歧管的液化气体排放的方法和装置。 歧管包括每个具有中心轴线的至少一个主导管和每个具有中心轴线的两个或更多个排出导管。 每个排放管道以主管道的方式从每个排放管道的中心轴线从主管道的中心轴线延伸出来。 排放管道围绕主管道的中心轴线定位,使得排放管道的每个中心轴线相对于穿过主管道的中心轴线的基本水平的平面提供,夹角在约-30° DEG相对于水平面约为-60°。 排放孔附接到每个排放管道并被定向以提供向下排放。

    High efficiency linear freezer
    47.
    发明授权
    High efficiency linear freezer 失效
    高效线性冷冻机

    公开(公告)号:US4813245A

    公开(公告)日:1989-03-21

    申请号:US143443

    申请日:1988-01-13

    IPC分类号: F25D3/11 F25D25/04

    CPC分类号: F25D3/11

    摘要: A linear freezer for cooling and/or chilling and/or crust freezing and/or freezing various products, said freezer using carbon dioxide or nitrogen. The freezer comprises means to balance the exhausted cold gas between the entry and exit openings and sucking means, to extract the exhausted cold gas at said both entry and exit openings, with no substantial variation of flowrate of the exhausted cold gas than that generated from the enclosure without said sucking means.

    摘要翻译: 用于冷却和/或冷却和/或冷冻和/或冷冻各种产品的线性冷冻机,所述冷冻器使用二氧化碳或氮气。 冷冻机包括平衡入口和出口开口和抽吸装置之间的排出的冷气的装置,以便在所述入口和出口开口处提取排出的冷气体,其中排出的冷气体的流量没有比由 外壳没有所述吸入装置。

    Method and apparatus for gas flow control in a cryogenic freezer
    48.
    发明授权
    Method and apparatus for gas flow control in a cryogenic freezer 失效
    低温冷冻机中气体流量控制的方法和装置

    公开(公告)号:US4800728A

    公开(公告)日:1989-01-31

    申请号:US099443

    申请日:1987-09-18

    申请人: David J. Klee

    发明人: David J. Klee

    IPC分类号: F25D3/11 F25D13/06

    CPC分类号: F25D3/11

    摘要: Method and apparatus for controlling gaseous cryogen flow through a continuous tunnel type freezer wherein the cryogen and product to be frozen travel in counterflow heat exchange relation to minimize egress of cryogen from, or ingress of ambient air into the product discharge opening in the freezer.

    N.sub.2 tunnel freezer
    49.
    发明授权
    N.sub.2 tunnel freezer 失效
    N2隧道式冷冻机

    公开(公告)号:US4783972A

    公开(公告)日:1988-11-15

    申请号:US114228

    申请日:1987-10-29

    IPC分类号: F25D3/11 F25D17/02

    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。

    Food freezing tunnel
    50.
    发明授权
    Food freezing tunnel 失效
    食物冻结隧道

    公开(公告)号:US4782668A

    公开(公告)日:1988-11-08

    申请号:US47959

    申请日:1987-05-07

    申请人: Malcolm L. Stokes

    发明人: Malcolm L. Stokes

    CPC分类号: F25D3/11 A23L3/375

    摘要: A food freezing tunnel has a trough member and a roof member. In order to gain access to the interior of the tunnel, for example for purposes of cleaning the tunnel, the trough member is able to be raised and lowered. Jack means housed in the respective legs of the tunnel are driven by for example an electric motor to lower and raise the tunnel. The trough has counterweights. Typically the jack includes a rotary screw-threaded shaft which carry a nut connected to a chain which travels over pulleys and which is secured to the trough member.