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    • 1. 发明授权
    • Fabrication of heat exchanger tube bundles
    • 热交换器套管的制造
    • US3768132A
    • 1973-10-30
    • US3768132D
    • 1971-11-02
    • SUN SHIPBUILDING & DRY DOCK CO
    • GARBER D
    • B21D53/06F28F9/02B23P15/26B23P15/16
    • B21D53/06F28F9/0221Y10T29/49393Y10T29/5177Y10T29/53113Y10T29/53961
    • All-welded heat exchanger tube bundles, with integral mounting flanges, are fabricated by first flaring the ends of the tubes and then machining, by a rack hobbing process, three weld prep surfaces, arranged as half a hexagon, on the flared ends of the tubes. The machining is performed on one complete row of tubes at a time and, at the same time, the ends of solid stubs (which eventually become the mounting flanges) are similarly machined. A machining operation is performed on both an unwelded row of tubes, held in a fixture, and on a previously welded array of tubes in the tube bundle; after both of these operations, the two groups of weld prepped tubes may be welded together to add the new row of tubes to the bundle.
    • 具有一体式安装法兰的全焊接热交换器管束通过首先将管的端部扩展,然后通过齿条滚齿加工将三个焊接准备表面(被布置为半边六边形)加工在 管。 一次在一排完整的管子上进行加工,同时加工固体短棒(最终成为安装法兰)的端部。 在保持在固定装置中的未焊接的管排和在管束中预先焊接的管阵列上进行加工操作; 在这两个操作之后,两组焊接预制管可以焊接在一起以将新的管排添加到管束中。
    • 2. 发明授权
    • Apparatus for transportation of commodities
    • 运输商品的装置
    • US3699870A
    • 1972-10-24
    • US3699870D
    • 1971-06-23
    • SUN SHIPBUILDING & DRY DOCK CO
    • CANTAGALLO RAYMOND ELUTZ ROBERT J
    • B60H1/00B60P3/20B65D88/74F25D19/00B60H1/24
    • B65D88/745B60H1/00014B60P3/20F25D19/003
    • Large insulated containers are used for the transport of chilled or frozen commodities. Each of the containers has its own electric-motor-driven refrigeration equipment, which is supplied with electric power from the ship or trailer chassis on which the containers are being transported. In the containers, a continuous flow of refrigerated (or, in some cases, heated) air is maintained up through and/or around the packaged commodity. Means is provided to change the atmosphere inside the container by the addition of fresh air. A temperature set point adjustment is provided to maintain the temperature of the air being circulated in the container. A relatively simple and convenient arrangement is provided for mounting the refrigeration equipment on the container.
    • 大型隔热容器用于运输冷藏或冷藏商品。 每个容器都具有自己的电动机驱动的制冷设备,其从运输集装箱的船或拖车底盘供应电力。 在容器中,冷藏(或在一些情况下,加热的)空气中的连续流动通过包装商品和/或周围维持。 提供了通过添加新鲜空气来改变容器内的气氛的装置。 提供温度设定点调节以保持空气在容器中循环的温度。 提供了将制冷设备安装在容器上的相对简单和方便的布置。