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    Portable air tank with a hazard relief vent
    124.
    发明授权
    Portable air tank with a hazard relief vent 失效
    便携式气罐，带有危险排放口

    公开(公告)号：US5503295A

    公开(公告)日：1996-04-02

    申请号：US275963

    申请日：1994-07-15

    Applicant: Robert J. Kotarba ,  Steve D. Hinsley

    Inventor： Robert J. Kotarba ,  Steve D. Hinsley

    IPC: F17C13/12 ,  F17C1/00

    CPC classification number: F17C13/123 ,  F17C2201/0119 ,  F17C2201/0138 ,  F17C2201/035 ,  F17C2201/058 ,  F17C2203/069 ,  F17C2205/0107 ,  F17C2205/0165 ,  F17C2205/018 ,  F17C2205/0332 ,  F17C2205/0364 ,  F17C2221/031 ,  F17C2223/0123 ,  F17C2223/035 ,  F17C2250/043 ,  F17C2260/042 ,  F17C2260/053 ,  Y10S220/06

    Abstract: A portable air tank having a safety relief venting assembly formed in the bottom of the tank. The safety relief vent includes a tubular relief frame welded to the exterior of the tank about a relief hole punched in the tank's bottom near one end thereof. The tubular relief frame includes a channel therethrough which aligns with, and surrounds, the hole punched in the bottom of the tank. The legs of the tank are formed to maintain the tank in an angled relation, with respect to a horizontal plane, to ensure that condensation within the tank collects at the relief hole. The venting assembly includes a cup-shaped plug inserted into the relief frame. A concave surface of the cup-shaped plug is directed upward toward the interior of the tank to ensure that condensation collects within the cup. The cup-shaped plug is formed with a thickness substantially half that of the tank's outer wall to ensure that the plug will corrode and fail before any other portion of the tank wall is compromised. When the plug fails, air pressure within the tank is discharged through the relief frame and downward against the floor to minimize the danger to the user.

    Abstract translation: 一种便携式空气罐，其具有形成在罐底部的安全泄放排气组件。 安全释放通风口包括一个管状浮雕框架，该管状浮雕框架围绕在其一端附近的罐底部中冲压的释放孔焊接到罐的外部。 管状浮雕框架包括通过其穿过其中冲压在罐底部的孔并围绕其的孔的通道。 储罐的腿形成为使罐相对于水平面保持成倾斜的关系，以确保罐内的冷凝物收集在卸载孔处。 排气组件包括插入浮雕框架中的杯状塞子。 杯形塞的凹面朝向罐的内部朝上，以确保冷凝物收集在杯内。 杯形塞形成的厚度基本上是罐的外壁的一半，以确保在罐壁的任何其他部分受到损害之前，塞会腐蚀和失效。 当插头出现故障时，水箱内的气压通过救生架排出，并向下抵靠地板，以最大限度地减少对使用者的危害。

    Heat transfer tubing for natural gas evaporator
    125.
    发明授权
    Heat transfer tubing for natural gas evaporator 失效
    天然气蒸发器换热管

    公开(公告)号：US4296539A

    公开(公告)日：1981-10-27

    申请号：US7324

    申请日：1979-01-29

    Applicant: Takayoshi Asami

    Inventor： Takayoshi Asami

    IPC: F16L9/19 ,  F17C9/02 ,  F28F1/12 ,  F28F1/42 ,  B23P15/26

    CPC classification number: F28F1/40 ,  F16L9/19 ,  F17C9/02 ,  F28F1/12 ,  F17C2201/0138 ,  F17C2227/0302 ,  F17C2227/0393 ,  F28D2021/0064 ,  F28F2275/14 ,  Y10T29/49396

    Abstract: A heat transfer tube for the water-spray panel evaporator for the gasification of liquefied natural gases which includes a tube having a pair of planar members each projecting outwardly from its peripheral surface, radially with respect to its longitudinal axis and extending longitudinally along such axis, and an internal fin disposed within the tube and having at least three fin members each projecting radially with respect to the longitudinal axis to provide a helicoidal formation extending along and about the longitudinal axis, the helix of the helicoidal formation contacting the internal wall of the tube in a pressure-fitting relationship. These heat transfer tubes can be assembled to provide a panel evaporator. The method for fabricating such heat transfer tubes and assemblies is characterized in that the above pressure-fitting relationship is established by drawing the tube alone to reduce its internal diameter until the helix of the helicoid is abutted against the internal wall of the tube.

    Abstract translation: 一种用于气化液化天然气的喷水面板蒸发器的传热管，其包括具有一对平面构件的管，该管具有从其外周表面向外径向相对于其纵向轴线沿该轴线纵向延伸的一对平面构件， 以及内部翅片，其设置在所述管内并且具有至少三个翅片构件，每个翅片构件相对于所述纵向轴线径向地突出，以提供沿着所述纵向轴线延伸并且围绕所述纵向轴线延伸的螺旋形结构，所述螺旋形地层的螺旋接触所述管的内壁 在压力关系中。 这些传热管可以被组装以提供面板蒸发器。 制造这种传热管和组件的方法的特征在于，通过单独拉制管以减小其内径来建立上述压配合关系，直到螺旋螺旋的螺旋抵靠管的内壁。

    Indirect heater
    126.
    发明授权
    Indirect heater 失效
    间接加热器

    公开(公告)号：US3603101A

    公开(公告)日：1971-09-07

    申请号：US3603101D

    申请日：1969-06-24

    Applicant: SIVALLS TANKS INC

    Inventor： SULLIVAN LAWRENCE J

    IPC: F17C7/00 ,  F17C9/02

    CPC classification number: F17C7/00 ,  F17C2201/0138 ,  F17C2227/0302 ,  F17C2227/0337

    Abstract: The heater includes a vessel containing a heat transfer fluid and a fire tube located adjacent the bottom to heat the heat transfer fluid. The fluid to be heated flows through a coil located in the vessel above the fire tube but submerged in the heat transfer fluid. The coil encircles two void boxes that occupy a substantial portion of the space in the vessel and reduce the volume of heat transfer fluid required to fill the vessel to a level above the boxes and the coil. The void boxes are spaced apart and positioned relative to the fire tube to cause the heat transfer fluid to flow upwardly between the boxes and downwardly past the coil between the boxes and the walls of the vessel due to the heat convection currents produced by the thermosyphonic effect. When the fluid being heated is a gas and the pressure of the gas is to be reduced, a choke is located in the coil adjacent its outlet to reduce the pressure after the gas has been heated. This reduces the condensation of liquids and the possibility of their freezing due to the reduction in temperature resulting from the pressure drop across the choke.

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