Xylem IP Management S.a R.l.

Xylem IP Holdings, LLC

Wedeco Ag

Xylem Water Solutions Herford Gmbh

Xylem Europe Gmbh

Friedhelm Krüger

Sven Kämmerer

Uwe Kanigowski

Ralf Fiekens

Ernst Martin Billing

Rolf Sief

Hans-Joachim Anton

Madhukar Rapaka

Leroy Jack Morningstar, Jr

Peer Krüger

Daniel Raymond

Heike Beckmann

Michaela Hunze

An apparatus for the treatment of water includes an elongated housing having a first end and a second end. The first end has a water inlet and the second end has a water outlet. An elongated ultraviolet radiation source with a sleeve is concentrically located within the elongated housing. The elongated ultraviolet radiation source has, at its first end, electrical connections, which extend through the second end of the housing and have a second free end held in a support element. The support element includes a supporting structure containing a ring element and from thereon radially inwardly running arms. The arms are designed in such a way that during assembly the arms are resiliently deformed and wherein, if assembled, the arms are pressed against the sleeve, so that the free end of the ultraviolet radiation source is held by the arms in a resilient manner.

Quartz sleeve support for a UV-lamp

A UV radiator unit includes an elongated gas discharge lamp with an essentially cylindrical UV transparent lamp body with sealed ends, which encloses a gas volume. The lamp body defines a longitudinal axis and has an outer diameter. A UV transparent sleeve tube with an inner diameter, which surrounds the lamp body and wherein the inner diameter is larger than the outer diameter of the lamp body. At least one damping ring is interposed between the lamp body and the sleeve tube. The damping ring includes a first side element, a second side element and at least one connecting portion. An axial distance is provided between the first side element and the second side element. The at least one connecting portion physically connects the first side element and the second side element.

Damping ring

Method for determining the UV transmittance of water in a UV disinfection plant, through which water flows, wherein the UV disinfection plant has a plurality of radiator arrangements, each with a UV radiation source, a sleeve tube which surrounds the UV radiation source and which has an end face at an open end, and with a UV-C sensor which detects the UV radiation emerging from the sleeve tube without the influence of the water, and with at least one further UV sensor which is arranged at a distance from the sleeve tubes of the radiator arrangements, wherein the method includes the following steps: measuring the UV radiant power emerging from the sleeve tube; measuring an amount of the transmitted radiant power by the further UV sensor; and determining the transmittance of the water by an amount of the emerged radiant power and of the transmitted radiant power.

Method for determining the UV transmittance of water

An emitter arrangement includes a UV irradiation source, a cladding tube surrounding the UV irradiation source, and a UV-C sensor. The cladding tube has an end face on an open end. The UV-C sensor has a sensitive area, wherein the UV-C sensor is in optical connection with the end face of the cladding tube, so that the sensitive area of the UV-C sensor can detect the UV irradiation emerging from the end face of the cladding tube during the operation of the UV irradiation source.

UV sensor

A UV lamp module having a frame and at least two lamp units, wherein each lamp unit includes a UV lamp extending in an axial direction, a jacket tube enclosing the UV lamp, electrical connections and a head section for fastening the lamp unit to the frame, wherein for each lamp unit, a fastening device is provided by which the lamp unit can be separably connected to the frame in the region of the head section.

UV lamp module with exchangeable lamp units

A UV water treatment plant having at least one module which contains a number of elongated UV lamps in a bracket, wherein the lamps are orientated in parallel to one another, wherein a base having at least one guide connected firmly to the base and at least one guide rail connected to the bracket are provided, wherein the guide rail is mounted to be displaceable in the guide.

UV water treatment plant with open channel

The invention relates to a device for the sterilization of ballast water on ships by means of UV radiation, with a pump line by means of which ballast water can be taken up and discharged, wherein the pump line is passed through by a number of UV-transparent sheath pipes arranged one behind another in the direction of the pump line and in which UV radiators are arranged for the emission of UV radiation into the pump line and sheath pipes arranged one behind another in the circumferential direction of the pump line are offset by an angle &#x3b1; in relation to one another.

In-line UV-germicidal device for fluid media

A UV disinfection system for waste water and drinking water, includes a number of UV radiators arranged in cladding tubes, the cladding tubes being configured essentially symmetrically to a longitudinal axis, as well as a cleaning device for the cladding tubes. The cleaning device includes at least one cleaning ring for each cladding tube, which surrounds the cladding tube, the at least one cleaning ring having a scraper ring resting against the cladding tube, at least one drive for driving the cleaning ring in the direction of the longitudinal axis, and supply provisions for supplying pressurized fluid under elevated pressure from a pressure source to the scraper ring are provided, wherein pressure may be applied onto the scraper ring from the pressure source in the direction of the cladding tube.

UV disinfection system for waste water and drinking water including a cleaning device

The invention relates to a device for treating a flowing fluid, in particular water, including a housing with an inlet for supplying the fluid and an outlet for discharging the fluid, an element for generating radiation, in particular UV radiation, the radiation at least acting on a part of the flowing fluid, and a means for influencing the fluid flow within the housing wherein the means for influencing the fluid flow is configured as a module with a large number of structured metal sheets.

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Lemgo, Germany

Friedhelm Krüger