Control for cryogenic freezing tunnel
    61.
    发明授权
    Control for cryogenic freezing tunnel 失效
    低温冻结隧道的控制

    公开(公告)号:US4142376A

    公开(公告)日:1979-03-06

    申请号:US847718

    申请日:1977-11-02

    申请人: Glenn A. Sandberg

    发明人: Glenn A. Sandberg

    摘要: A startup and shutdown control for a cryogenic freezing tunnel for freezing food products in which the rate of flow of cryogen into the tunnel is normally regulated by a thermal regulator, including an auxiliary flow regulator for maintaining a predetermined flow of cryogen to the tunnel independently of the thermal regulator, a first startup interval device, comprising a counter responsive to movement of the tunnel conveyor, for actuating the auxiliary flow regulator to provide a constant flow of cryogen to the tunnel after a first startup interval measured from the initiation of movement of a supply of food products to the tunnel, and a second startup interval device, comprising a timer, to cut off the flow of cryogen via the auxiliary flow regulator after a second startup inverval. The control further includes a first shutdown interval device, which is also a counter, to cut off all cryogen flow to the tunnel after a first shutdown interval measured from the interruption of the food product supply, and a second shutdown interval device, a timer, to restore flow control to the thermal regulator after a second shutdown interval.

    摘要翻译: 用于冷冻食品的低温冻结隧道的启动和关闭控制,其中冷冻剂进入隧道的流速通常由热调节器调节,其包括辅助流量调节器,用于将预定流量的冷冻剂保持到隧道,独立于 热调节器,第一启动间隔装置,包括响应于隧道输送机的移动的计数器,用于致动辅助流量调节器,以在从启动运动之后测量的第一启动间隔之后向隧道提供恒定流量的冷冻剂 向隧道供应食品,以及第二启动间隔装置,包括定时器,在第二次启动反转之后通过辅助流量调节器切断冷冻剂流。 该控制还包括第一关闭间隔装置,其也是计数器,用于在从食品供应中断测量的第一关闭间隔之后切断到隧道的所有冷冻剂流,以及第二关闭间隔装置,定时器, 在第二次关机间隔后恢复到热调节器的流量控制。

    Freezing apparatus particularly useful for freezing spermatozoa
    62.
    发明授权
    Freezing apparatus particularly useful for freezing spermatozoa 失效
    冷冻设备特别适用于冷冻精子

    公开(公告)号:US3893308A

    公开(公告)日:1975-07-08

    申请号:US45078374

    申请日:1974-03-13

    申请人: RICOR LTD

    IPC分类号: F25D3/10 F25D29/00 C12K1/08

    CPC分类号: F25D29/001 F25D3/10

    摘要: Freezing apparatus is described particularly useful for producing frozen pellets of a medium containing spermatozoa, for use in artificial insemination. The apparatus includes a freezing chamber having a heat-conductive removable freezing plate constituting the top wall of a compartment into which a cooling gas is fed from a liquified gas container. A valve in the gas feed line controls the amount of gas fed to the freezing chamber to produce a preselected temperature as preset by a controller, and an electrical heating element within the liquified gas container effects the drive of the gas from the container to the freezing chamber. The heat-conductive plate is formed with a plurality of recessed pockets in which the medium is introduced and freezes in the form of pellets.

    摘要翻译: 描述冷冻装置特别适用于生产用于人工授精的含有精子的培养基的冷冻颗粒。 该装置包括具有构成隔室的顶壁的导热性可移除冷冻板的冷冻室,冷却气体从液化气体容器供入冷冻室。 气体供给管中的阀控制供给到冷冻室的气体量,以产生由控制器预设的预选温度,并且液化气体容器内的电加热元件影响气体从容器的驱动到冷冻 房间。 导热板形成有多个凹槽,其中介质被引入并以颗粒的形式冻结。

    Method and apparatus for controlling freezing apparatus
    63.
    发明授权
    Method and apparatus for controlling freezing apparatus 失效
    控制冷冻装置的方法和装置

    公开(公告)号:US3826100A

    公开(公告)日:1974-07-30

    申请号:US25507172

    申请日:1972-05-19

    申请人: VAHL L

    发明人: VAHL L

    IPC分类号: A23L3/36 F25D29/00 F25D13/06

    CPC分类号: A23L3/362 F25D29/001

    摘要: Method and apparatus for optimum recovery of an evaporating coolant in a direct contact type of freezing apparatus, such method including measuring the differential pressure in the supply or discharge duct to or from the freezing chamber and the pressure of the air in the space in which the apparatus is located resulting from the diffusion of coolant and air within the apparatus and using the pressure difference to control the discharge of air from the apparatus.

    摘要翻译: 直接接触式冷冻装置中的蒸发冷却剂的最佳回收方法和装置,包括测量与冷冻室的供应或排出管道之间的压差以及空间中的空气压力, 装置由于冷却剂和空气在装置内的扩散而产生,并且使用压力差来控制从装置排出的空气。