Method and apparatus for improved mixing in fluids

    公开(公告)号:US06015229A

    公开(公告)日:2000-01-18

    申请号:US933573

    申请日:1997-09-19

    Abstract: The present invention provides an apparatus and method for accomplishing fluid disinfection by passing fluid flow through a uniform array of ultraviolet lamps having cross sections perpendicular to the direction of fluid flow that define channels for the fluid flow. Positioned next to the end of each lamp at the entrance of the fluid flow are triangular shaped delta wings having surfaces inclined at an angle to the direction of fluid flow. The interaction of the fluid flow with each delta wing creates a pair of vortices that rotate in the same direction or in directions opposed to each other. The counter-rotating vortices reinforce each other to minimize dissipation of their mixing strength as they move down the channel. Due to these co-reinforcing properties these counter-rotating vortices more promote efficient mixing of the fluid which is required to achieve more efficient use of the light in the UV disinfection systems, along with heat and/or mass transfer in chemical reactions. Although the present invention is described in particularity as embodied in a UV reactor system, it will be understood by those skilled in the art that the present invention has equal applicability to other types of arrayed flow systems in which increased fluid mixing is desired.

    UV reactor assembly with improved lamp cooling means
    33.
    发明授权
    UV reactor assembly with improved lamp cooling means 失效
    具有改进的灯冷却装置的UV反应器组件

    公开(公告)号:US5372781A

    公开(公告)日:1994-12-13

    申请号:US836617

    申请日:1992-02-18

    Abstract: A reactor assembly is provided for destroying contaminants in fluids by the application of UV radiation to promote the destruction of the contaminants. The reactor assembly has a vertically orientated reactor chamber with a centrally located lamp emitting UV radiation and operating at temperatures in excess of 700.degree. C. A protective sheath transparent to the UV radiation encloses the lamp and isolates the lamp from reactor interior to define thereby an annular reactor space through which fluids to be treated flow. The fluids flowing through the annular reactor space and along the sheath effect a cooling of the sheath due to lamp heating. The lamp has a terminal portion at each end thereof. Each terminal portion has a temperature sensitive component. The lamp is of a sufficient length to extend the terminals beyond the end portions of the reactor which has a length equal to or greater than the arc length of the lamp. Cooling air is directed on to each of the upper and lower terminals of the lamp to cool the temperature sensitive portions thereby preventing deterioration of each lamp end due to excessive heating. In directing cooling air onto the lower terminal a pressure is developed which is greater than the pressure at the upper end of the sheath so that a control constant flow of cooling air is assured upwardly of the sheath and over the lamp. This constant flow of cooling air is assured upwardly over the sheath and over the lamp. This constant flow of cooling air is controlled to permit the lamp to operate at optimum operating temperatures to provide the necessary output of UV radiation to promote the destruction of the contaminants in the fluids.

    Abstract translation: 提供反应器组件,用于通过施加UV辐射来破坏流体中的污染物,以促进污染物的破坏。 反应器组件具有垂直取向的反应室,其中心位置的灯发射紫外线辐射并在超过700℃的温度下操作。对UV辐射透明的保护护套封装灯并将灯隔离反应器内部,由此定义 环形反应器空间,待处理的流体通过该空间流动。 流经环形反应器空间并沿护套流动的流体由于灯加热而影响护套的冷却。 灯在其两端具有端子部分。 每个端子部分都具有温度敏感元件。 灯具有足够的长度以将端子延伸超过反应器的端部,其长度等于或大于灯的电弧长度。 冷却空气被引导到灯的上端和下端中的每一个,以冷却温度敏感部分,从而防止由于过度加热导致的每个灯端的劣化。 在将冷却空气引导到下部端子上时,显示出比鞘的上端处的压力大的压力,使得冷却空气的控制恒定流量被确保在护套的上方和灯的上方。 冷却空气的这种恒定的流动可以通过护套向上确保并在灯上方。 这种恒定的冷却空气流被控制以允许灯在最佳操作温度下操作以提供必要的UV辐射输出,以促进流体中污染物的破坏。

    UV lamp transmittance controller
    34.
    发明授权
    UV lamp transmittance controller 失效
    UV灯透光控制器

    公开(公告)号:US5266280A

    公开(公告)日:1993-11-30

    申请号:US914734

    申请日:1992-07-20

    Applicant: Ron C. Hallett

    Inventor: Ron C. Hallett

    CPC classification number: B01J19/123 C02F1/325 C02F2201/324 C02F2201/328

    Abstract: A high intensity, high temperature UV Lamp reactor system for treating fluid on a continuous flow basis is provided. The reactor system comprises:a cylindrical reactor vessel, having inlets and outlets which permit the fluid to flow on a continuous basis through the reactor,a cylindrical UV lamp provided in the vessel and concentric therewith,a cylindrical UV transparent sheath for isolating the UV lamp from the interior space of the reactor vessel, the sheath and lamp being concentric with the cylindrical vessel, the sheath being sealed to the ends of the vessel to isolate the UV lamp from the fluid flowing through the annular reactor chamber,a brush device is provided for brushing the exterior surface of the sheath to remove therefrom materials deposited from the fluid, the brush having at least two brushes with bristles extending radially inwardly towards the sheath as the brushes encompass the sheath,the brushes are coupled together in spaced apart manner on the sheath with a device for reciprocating the brushes along the sheath exterior, preferably on a periodic basis to remove any deposited material from the sheath and thereby maintain an acceptable level of UV radiation transmitted into the annular chamber of the reactor.

    Abstract translation: 提供了一种用于连续流动处理流体的高强度,高温UV灯反应器系统。 反应器系统包括:具有入口和出口的圆柱形反应器容器,其允许流体连续地流过反应器,设置在容器中并与其同心的圆柱形UV灯,用于隔离UV灯的圆柱形UV透明护套 从反应堆容器的内部空间,鞘和灯与圆柱形容器同心,护套被密封到容器的端部,以将UV灯与流过环形反应器室的流体隔离,提供刷装置 为了刷洗护套的外表面以从中除去从流体沉积的材料,当刷子包围护套时,刷具有至少两个具有刷毛的径向向内延伸的刷子,刷子以间隔开的方式连接在一起 护套,其具有用于沿着护套外部使刷子往复运动的装置,优选地周期性地移除刷子以移除任何沉积物 并且从而保持传输到反应器的环形室中的可接受的UV辐射水平。

    UV lamp enclosure sleeve
    35.
    发明授权
    UV lamp enclosure sleeve 失效
    UV灯外壳套

    公开(公告)号:US4968489A

    公开(公告)日:1990-11-06

    申请号:US458608

    申请日:1989-12-29

    Abstract: In an oxidation chamber for treating wastewater, an ultraviolet lamp is mounted inside a quartz tube that is surrounded by the wastewater in the oxidation chamber. During operation, the quartz tube becomes quite hot and becomes coated with a film of slime that reduces transmission of the ultraviolet radiation into the wastewater. This results in gradually decreasing efficiency of operation until its becomes necessary to interrupt the operation of the chamber and to remove the quartz tube so that it can be cleaned to restore the transmission.In accordance with the present invention it has been found advantageous to apply a thin layer of fluoroethylene propylene (FEP) to the outer surface of the quartz tube. It has been found that the FEP layer is less suspectible to the deposition of slime than is the unprotected quartz tube, and that the slime is more easily removed from the FEP layer than from an unprotected quartz tube. Further, the FEP layer strengthens the quartz tube and protects it from localized stresses and damage caused by impact. This protective effect makes it possible to use quartz tubes having thinner walls, and that increases the transmission of the ultraviolet radiation through the quartz wall. The FEP layer also reduces handling damage to the quartz tube and protects the maintenance workers from injury.

    Abstract translation: 在用于处理废水的氧化室中,紫外灯安装在被氧化室内的废水包围的石英管内。 在操作过程中,石英管变得相当热,并且被薄膜涂覆,从而减少紫外线辐射进入废水。 这导致逐渐降低操作效率,直到其变得必要以中断腔室的操作并且去除石英管,使得其可以被清洁以恢复透射。 根据本发明,已经发现将氟乙烯丙烯(FEP)薄层施加到石英管的外表面是有利的。 已经发现,与不受保护的石英管相比,FEP层对粘泥的沉积不太可疑,并且从FEP层中更容易从不受保护的石英管去除粘泥。 此外,FEP层增强了石英管,并保护其免受局部应力和冲击造成的损坏。 这种保护效果使得可以使用具有较薄壁的石英管,并且增加了透过石英壁的紫外线辐射。 FEP层还可减少对石英管的处理损坏,并保护维护人员免受伤害。

    Radiation-emitting devices
    36.
    发明授权
    Radiation-emitting devices 失效
    辐射发射装置

    公开(公告)号:US4853581A

    公开(公告)日:1989-08-01

    申请号:US147882

    申请日:1988-01-25

    Abstract: An improved radiation-emitting device of the type for containing gas and an electron flow therein between electrodes. Inner and outer tubular members form an elongated annular envelope volume. The inner tube is radiation-transmissive and the outer tube is preferably radiation-reflective, preferably having metallic inner coating. Fluid passing through the inner tube is irradiated.

    Abstract translation: 一种用于在电极之间容纳气体和电子流的类型的改进的辐射发射装置。 内部和外部管状构件形成细长的环形包络体积。 内管是辐射透射的,外管优选是辐射反射的,优选地具有金属内涂层。 通过内管的流体被照射。

    Method and apparatus for purifying fluids
    37.
    发明授权
    Method and apparatus for purifying fluids 失效
    净化流体的方法和装置

    公开(公告)号:US3837800A

    公开(公告)日:1974-09-24

    申请号:US32268873

    申请日:1973-01-11

    Applicant: MELTZER H

    Inventor: WOOD M

    Abstract: A method and apparatus for continuously purifying a fluid by the emission of ultraviolet rays characterized by a body with a series of spaced, parallel, elongated, cylindrical radiation chambers extending therethrough, and a plurality of elongated, interconnecting chambers having a height substantially less than the diameter of the radiation chambers, a plurality of elongated, ultraviolet ray emitting lamps removably mounted in jackets in the radiation chambers, respectively, and extending from the front to the rear of the radiation chambers. Fluid to be purified is continuously received in an elongated chamber and spread into sheet-like flow attitude and thence passed serially and transversely between the lamp jackets and the walls of the radiation chambers, the walls being in close proximity to the jackets to maintain sheet-like flow for a substantial distance around the periphery of the lamps, and the fluid is maintained in sheet-like flow between adjacent radiation chambers by passing through the interconnecting chambers, and thence the purified liquid is discharged from the last of the radiation chambers.

    Abstract translation: 一种用于通过发射紫外线来连续净化流体的方法和装置,其特征在于具有一系列间隔开的,平行的,细长的圆柱形辐射室延伸穿过的主体,以及多个细长互连室,其高度实质上小于 辐射室的直径,分别可拆卸地安装在辐射室中的夹套中并从辐射室的前部延伸到后部的多个细长的紫外线发射灯。 要被净化的流体被连续地接收在细长的室中并且扩展成片状的流动姿态,并且从而在灯套和辐射室的壁之间串联和横向地通过,壁紧密地夹在外套上, 并且流体通过穿过互连室而保持在相邻辐射室之间的片状流中,从而净化的液体从最后的辐射室排出。

    FLUID STERILIZATION DEVICE
    40.
    发明申请

    公开(公告)号:US20190112203A1

    公开(公告)日:2019-04-18

    申请号:US16160582

    申请日:2018-10-15

    Inventor: Hideki ASANO

    Abstract: A fluid sterilization device includes: a flow passage tube in which a processing passage where a passing fluid is sterilized is formed; an inflow passage or an outflow passage formed in the flow passage tube; a light source that irradiates the processing passage with ultraviolet light; and a rotating body provided in the processing passage. The rotating body is rotated around a longitudinal direction of the processing passage in response to a flow of the fluid passing through the processing passage and is configured to come into contact with an inner wall of the flow passage tube during rotation.

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