Slush producing process and device
    1.
    发明授权
    Slush producing process and device 有权
    生产工艺和装置

    公开(公告)号:US6131397A

    公开(公告)日:2000-10-17

    申请号:US262787

    申请日:1999-03-04

    摘要: Slush is made from a liquid using slush making systems or according to slush making processes. A jacketed vessel of the processes and the systems has an interior wall that defines an interior space. The interior space comprises a top and a bottom. The interior space has an average overall cross-sectional area taken through a vertical axis extending generally between the top and the bottom. The interior space also has a collection portion having an average collection portion cross-sectional area taken through the vertical axis that is less than the average overall cross-sectional area. The liquid is placed into the interior space and the interior walls are cooled. Slush forms on the interior walls and migrates to the collection portion. The collection portion is located at the interior space bottom when the slush density is higher than the liquid density and the collection portion is located at the interior space top when slush density is less than the liquid density. To facilitate the migration of the slush to the collection portion, at least a conical portion of the interior space has the general shape of a cone and the collection portion is located in the proximity of an apex of the conical portion, thereby helping to funnel the slush to the collection portion. The cryogenic liquid to be made into slush may be oxygen, nitrogen, hydrogen, helium, or water. The slush may be used to densify cryogenic liquids, such as cryogenic liquid propellants.

    摘要翻译: 泥浆由使用制浆系统的液体或根据制浆工艺制成。 工艺和系统的夹套容器具有限定内部空间的内壁。 内部空间包括顶部和底部。 内部空间的平均整个横截面面积通过一般在顶部和底部之间延伸的垂直轴线。 内部空间还具有收集部分,该收集部分具有通过垂直轴线截取的平均收集部分横截面积小于平均总横截面积。 液体被放置在内部空间中并且内壁被冷却。 在内墙上形成灰浆,并迁移到收集部分。 当泥浆密度高于液体密度时,收集部分位于内部空间底部,当灌浆密度小于液体密度时,收集部分位于内部空间顶部。 为了便于将浆料迁移到收集部分,内部空间的至少一个锥形部分具有锥体的大致形状,并且收集部分位于锥形部分的顶点附近,从而有助于漏斗 溜到收集部分。 待制成冷冻的低温液体可以是氧气,氮气,氢气,氦气或水。 泥浆可用于致密化低温液体,例如低温液体推进剂。

    Combined diffuser and recirculation manifold in a propellant tank
    2.
    发明授权
    Combined diffuser and recirculation manifold in a propellant tank 有权
    在推进剂罐中组合的扩散器和再循环歧管

    公开(公告)号:US6073450A

    公开(公告)日:2000-06-13

    申请号:US262755

    申请日:1999-03-04

    IPC分类号: B64G1/40 F17C5/02

    摘要: A cryogenic propellant tank system and process for densifying cryogenic liquid propellant comprises a tank with a combined manifold, a combined manifold line, a pressurizing gas line, and a vent line. The combined manifold is located in the tank. The combined manifold line functionally connects the combined manifold to a chilling system. The pressurizing gas line and the vent line are also functionally connected to the combined manifold line. The tank may be disposed in a vehicle. The manifold is disposed proximate the top of the tank. The chilling system may be a heat exchanger/filling system. The process for filling the tank comprises the steps of charging the tank with cryogenic liquid propellant, venting gases in the tank, densifying the cryogenic liquid propellant, and pressurizing the tank. The tank is charged with the cryogenic liquid propellant such that the orifices in the combined manifold are submerged. The gases in the tank are vented through the combined manifold and out of the tank. The venting step is arrested prior to the submerging of the combined manifold orifices. The liquid in the tank is densified by directing a recirculation stream of the cryogenic liquid propellant from the tank through the combined manifold, out of the tank, cooling and directing the recirculation stream back into the tank. The tank is pressurized by directing a pressurizing gas stream into the combined manifold and into the tank.

    摘要翻译: 低温推进剂罐系统和用于致密化低温液体推进剂的方法包括具有组合歧管,组合歧管管线,加压气体管线和排气管线的罐。 组合的歧管位于水箱中。 组合的歧管管线将组合歧管功能连接到冷却系统。 加压气体管线和通气管线也在功能上连接到组合歧管管路。 罐可以设置在车辆中。 歧管靠近储罐的顶部设置。 冷却系统可以是热交换器/填充系统。 填充罐的过程包括以下步骤:向罐中加入低温液体推进剂,在罐中排放气体,使低温液体推进剂致密化,并对罐加压。 该罐装有低温液体推进剂,使得组合歧管中的孔被浸没。 罐中的气体通过组合歧管排出罐外。 排气步骤在组合的歧管孔口浸没之前被阻止。 通过将来自罐的低温液体推进剂的再循环流通过组合的歧管引导出罐,使罐中的液体冷却并将再循环流引导回罐中而致密。 通过将加压气流引导到组合的歧管中并进入罐中来对罐进行加压。

    Cryogenic liquid heat exchanger system with fluid ejector
    3.
    发明授权
    Cryogenic liquid heat exchanger system with fluid ejector 有权
    具有液体喷射器的低温液体热交换器系统

    公开(公告)号:US6164078A

    公开(公告)日:2000-12-26

    申请号:US262796

    申请日:1999-03-04

    摘要: A cryogenic liquid heat exchanger system has a subatmospheric pressure reservoir, a tube, and an initial fluid ejector. The sub-atmospheric pressure reservoir has a vacuum exhaust. The tube extends through the reservoir. The initial fluid ejector has a suction chamber inlet that is functionally connected to the reservoir vacuum exhaust. The system may have a plurality of fluid ejectors connected to one or more exhausts either in series or parallel. The initial fluid ejector may receive one or more pressurized fluid streams, and the streams may be steam. A process for generating sub-atmospheric pressures in a cryogenic fluid heat exchanger reservoir includes the step of discharging an initial fluid stream into an initial fluid ejector having a suction chamber functionally connected to an exhaust of the reservoir. A process for generating sub-atmospheric pressures in a cryogenic fluid heat exchanger reservoir includes the step of using a fluid ejector to reduce the pressure in the reservoir. In either process, cooling cryogenic fluid is directed through the reservoir. The cooling cryogenic fluid may be liquid nitrogen or liquid hydrogen. In either process, an incoming cryogenic fluid stream is directed through a tube that extends through the reservoir. The incoming cryogenic fluid may be liquid oxygen or liquid hydrogen, or any other suitable cryogenic fluid.

    摘要翻译: 低温液体热交换器系统具有低于大气压的压力储存器,管和初始流体喷射器。 次大气压力储存器具有真空排气。 管延伸通过储存器。 初始流体喷射器具有在功能上连接到储存器真空排气口的吸入室入口。 该系统可以具有串联或并联连接到一个或多个排气的多个流体喷射器。 初始流体喷射器可以接收一个或多个加压流体流,并且流可以是蒸汽。 在低温流体热交换器储存器中产生次大气压力的方法包括将初始流体流排放到具有功能性地连接到储存器的排气口的吸入室的初始流体喷射器中的步骤。 在低温流体热交换器储存器中产生低于大气压的方法包括使用流体喷射器来降低储存器中的压力的​​步骤。 在任一过程中,冷却低温流体被引导通过储存器。 冷却低温流体可以是液氮或液态氢。 在任一过程中,进入的低温流体流被引导通过延伸穿过储存器的管。 进入的低温流体可以是液氧或液态氢,或任何其它合适的低温流体。