Method for cleaning heat exchanger tubes by creating shock wave and
mixing the liquid with injected air
    1.
    发明授权
    Method for cleaning heat exchanger tubes by creating shock wave and mixing the liquid with injected air 失效
    通过产生冲击波并将液体与喷射空气混合来清洁热交换器管的方法

    公开(公告)号:US5423917A

    公开(公告)日:1995-06-13

    申请号:US16855

    申请日:1993-02-12

    Abstract: A method for cleaning tubes and heat exchangers as set forth. The method and apparatus involve an elongate lance which is mounted to move in an X and Y pattern to align with a set of tubes. Each tube is cleaned by positioning the lance at the end of each tube to be cleaned. A plug is placed in the tube to be cleaned to form a standing column for water. By means of a valve control system, the standing column of water is cycled from low to high pressure by switching the flow of water. In this switched mode, water is delivered under pressure into the column. The lance tip functions in conjunction with an orifice upstream of the lance tip to form a shock wave of energy radiating along the standing column of water from the orifice into the tube to be cleaned. The addition of water to the tube ultimately moves the plug along the length of the tube. It is one theory of operation of the present disclosure that the column of water exposed to shock waves is used in cleaning, i.e., shock waves do the cleaning while the addition of water merely provides sufficient water to form the standing column of water in the tube.

    Abstract translation: 如上所述的清洗管和热交换器的方法。 该方法和装置包括长形喷枪,其安装成以X和Y图案移动以与一组管对准。 通过将喷枪定位在要清洁的每个管的末端来清洁每个管。 将塞子放置在待清洁的管中以形成用于水的立柱。 通过阀门控制系统,水的立柱通过切换水流从低压到高压循环。 在这种切换模式下,水在压力下输送到塔中。 喷枪尖端与喷枪尖端上游的孔口相结合,以形成沿着立柱从喷口喷射到待清洁的管中的能量的冲击波。 将水添加到管中最终沿着管的长度移动塞子。 本公开的一个操作理论是,暴露于冲击波的水柱用于清洁,即冲击波进行清洁,而添加水仅提供足够的水以在管中形成立式水柱 。

    Cleaning apparatus with cavitation enhancement unit
    2.
    发明授权
    Cleaning apparatus with cavitation enhancement unit 有权
    具有气蚀增强装置的清洗装置

    公开(公告)号:US07306001B1

    公开(公告)日:2007-12-11

    申请号:US10920080

    申请日:2004-08-17

    CPC classification number: B08B9/0321 B08B2209/005 F28G1/163 F28G7/00 F28G9/00

    Abstract: A method for cleaning tubes and heat exchangers provides a cavitation enhancement unit between a source of pressurized fluid an a lance. The pressurized fluid flows through jets, which impart a high speed rotation to a set of propellers, preferably square in profile canted at a 15° angle. Generation of cavitation develops a cleaning vibration in the fluid discharged from the lance.

    Abstract translation: 用于清洁管和热交换器的方法在加压流体源和喷枪之间提供空化增强单元。 加压流体流过射流,其将高速旋转赋予一组螺旋桨,优选为15°角的倾斜方形。 气蚀的产生在从喷枪排出的流体中产生清洁振动。

    Pump valve mechanism
    3.
    发明授权
    Pump valve mechanism 有权
    泵阀机构

    公开(公告)号:US07421757B1

    公开(公告)日:2008-09-09

    申请号:US10920079

    申请日:2004-08-17

    CPC classification number: B08B9/032 B05B1/083 B08B9/0321 F28G7/00

    Abstract: A method for cleaning tubes and heat exchangers provides an oscillating pump/valve mechanism to provide a periodic waveform of shocks to fouled tubes. Preferably, a pair of pneumatic control valves operates an actuator to oscillate a valve within a valve block, and isolation of a fluid within a manifold in the block creates a pumping action from the valve, to create an intense fluid shock wave to clean interior surfaces tubes.

    Abstract translation: 一种用于清洗管道和热交换器的方法提供了一种振荡泵/阀机构,以向污垢管提供冲击的周期性波形。 优选地,一对气动控制阀操作致动器以使阀门内的阀振荡,并且隔离块内的歧管内的流体产生来自阀的泵送作用,以产生强烈的流体冲击波来清洁内表面 管。

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