Method of cleaning a pressurized container
    4.
    发明授权
    Method of cleaning a pressurized container 有权
    清洁加压容器的方法

    公开(公告)号:US06443166B1

    公开(公告)日:2002-09-03

    申请号:US09689386

    申请日:2000-10-12

    IPC分类号: B08B900

    摘要: The present invention relates to a method of cleaning a pressurized container having at least one chemical contained therein. The pressurized container may be any type of container able to store chemicals under pressure. Preferably, however, the container may be a rail tank car. Generally, the method begins with inspecting the container, testing for leaks in the container and verifying the contents of the container. Cleaning the container entails injecting the container with an amount of heated nitrogen gas to commingle with the chemical contained therein. The nitrogen gas/chemical mixture is then fed to a flare for incineration of the chemical. This may be repeated a plurality of times to completely clean the container or reduce the concentration of the chemical therein to a predefined amount. After cleaning with heated nitrogen, the container may be steam-cleaned and opened to remove debris.

    摘要翻译: 本发明涉及清洗其中含有至少一种化学物质的加压容器的方法。 加压容器可以是能够在压力下存储化学品的任何类型的容器。 然而,优选地,容器可以是轨道罐车。 通常,该方法开始于检查容器,测试容器中的泄漏并验证容器的内容物。 清洁容器需要向容器注入一定量的加热氮气以与其中所含的化学物质混合。 然后将氮气/化学混合物进料到用于焚化化学品的火炬。 这可以重复多次以完全清洁容器或将其中的化学物质的浓度降低到预定量。 用加热的氮气清洁后,容器可以被蒸汽清洁并打开以除去碎屑。

    Method of cleaning pressurized containers containing liquified petroleum gas
    5.
    发明授权
    Method of cleaning pressurized containers containing liquified petroleum gas 有权
    清洗含液化石油气的加压容器的方法

    公开(公告)号:US06635119B1

    公开(公告)日:2003-10-21

    申请号:US09689150

    申请日:2000-10-12

    IPC分类号: B08B700

    摘要: The present invention relates to a method of cleaning a container having an amount of liquefied petroleum gas contained therein. The container is first inspected thoroughly for leaks. Heated nitrogen gas is then fed into the container. The heated nitrogen gas may be transported from a nitrogen storage tank to the container via at least one pipe. Liquid nitrogen may be fed into a vaporizer for vaporizing the liquid nitrogen. The nitrogen gas may then be heated via a steamer to expand the nitrogen gas and ensure that no liquid nitrogen enters the container. The heated nitrogen gas may vaporize any liquid liquefied petroleum gas contained therein. Further, the heated nitrogen gas may transport the liquefied petroleum gas to a flare for incineration. The heated nitrogen gas may be added any number of times to reduce the concentration of the liquefied petroleum gas therein to a desired level. The container may then be steam cleaned and opened to enter and thoroughly clean or inspect the inside of the container.

    摘要翻译: 本发明涉及一种清洗容纳有液化石油气的容器的方法。 首先彻底检查容器是否有泄漏。 然后将加热的氮气进料到容器中。 加热的氮气可以经由至少一个管道从氮储存罐输送到容器。 液氮可以进料到蒸发器中以蒸发液氮。 然后可以经由蒸汽机加热氮气以膨胀氮气,并确保没有液氮进入容器。 加热的氮气可能会蒸发其中所含的任何液化石油气。 此外,加热的氮气可以将液化石油气输送到用于焚烧的火炬。 加热的氮气可以加入任何次数,以将其中的液化石油气的浓度降低到所需的水平。 然后可以将容器蒸汽清洁并打开以进入并彻底清洁或检查容器的内部。

    System for cleaning pressurized containers such as mobile railcars
    6.
    发明授权
    System for cleaning pressurized containers such as mobile railcars 失效
    用于清洁加压容器如移动轨道车的系统

    公开(公告)号:US06539961B1

    公开(公告)日:2003-04-01

    申请号:US09689424

    申请日:2000-10-12

    IPC分类号: B08B300

    摘要: The present invention relates to a system for cleaning a pressurized container having at least one chemical contained therein. The pressurized container may be any type of container able to store chemicals under pressure. Preferably, however, the container may be a rail tank car. Generally, the system includes the container that may have a plurality of valves for adding or removing gaseous or liquid material to or from the container. The container may be connected with a nitrogen tank that may be heated via a heater. The container may further be connected to a flare for incinerating residual chemical material that may be removed from the container.

    摘要翻译: 本发明涉及一种用于清洁其中含有至少一种化学物质的加压容器的系统。 加压容器可以是能够在压力下存储化学品的任何类型的容器。 然而,优选地,容器可以是轨道罐车。 通常,该系统包括容器,该容器可以具有多个阀,用于向容器添加或除去气体或液体材料。 容器可以与可以通过加热器加热的氮气罐连接。 容器还可以连接到用于焚化可从容器中取出的残留化学材料的火炬。

    Method of cleaning pressurized containers containing anhydrous ammonia
    7.
    发明授权
    Method of cleaning pressurized containers containing anhydrous ammonia 有权
    清洗含有无水氨的加压容器的方法

    公开(公告)号:US06758913B1

    公开(公告)日:2004-07-06

    申请号:US09689035

    申请日:2000-10-12

    IPC分类号: B08B504

    CPC分类号: B08B9/08 B08B7/00

    摘要: The present invention relates to a method of cleaning a container having an amount of anhydrous ammonia contained therein. The container is first inspected thoroughly for leaks. Heated nitrogen gas is then fed into the container. The heated nitrogen gas may be transported from a nitrogen storage tank to the container via at least one pipe. Liquid nitrogen may be fed into a vaporizer for vaporizing the nitrogen. The liquid nitrogen gas may then be heated via a heater, such as a steamer, to expand the nitrogen gas and ensure that no liquid nitrogen enters the container. The heated nitrogen gas may vaporize any liquid anhydrous ammonia contained therein. Further, the heated nitrogen gas may transport the anhydrous ammonia to a flare for incineration. The heated nitrogen gas may be added any number of times to reduce the concentration of the anhydrous ammonia therein to a desired level. The container may then be steam cleaned and opened to enter and thoroughly clean the inside of the container.

    摘要翻译: 本发明涉及一种清洗其中含有一定量的无水氨的容器的方法。 首先彻底检查容器是否有泄漏。 然后将加热的氮气进料到容器中。 加热的氮气可以经由至少一个管道从氮储存罐输送到容器。 液氮可以进料到用于汽化氮气的蒸发器中。 然后可以经由诸如蒸笼的加热器来加热液氮,以膨胀氮气,并确保没有液氮进入容器。 加热的氮气可以蒸发其中所含的任何液体无水氨。 此外,加热的氮气可以将无水氨输送到用于焚烧的火炬。 加热的氮气可以加入任何次数,以将其中的无水氨的浓度降低到所需的水平。 然后可以将容器蒸汽清洁并打开以进入并彻底清洁容器的内部。