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公开(公告)号：US10919765B2
公开(公告)日：2021-02-16
申请号：US15755601
申请日：2016-08-24
Applicant: XYLEM IP MANAGEMENT S.à r.l.
Inventor： Nicole Brüggemann , Ralf Fiekens , Reiner Fietzek , Manfred Salvermoser
Abstract: An ozone generator with a high voltage electrode and at least one counter electrode which limit a gap in which at least one dielectric is arranged and which is flowed through by a gas flow in the direction of flow. The high voltage electrode and the at least one counter electrode are provided with a connection for an electrical power supply to generate silent discharges. A fabric is arranged in the gas flow. The fabric includes a material combination including at least one wire and at least one electrically non-conductive fiber.
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公开(公告)号：US10829373B2
公开(公告)日：2020-11-10
申请号：US15998894
申请日：2017-02-08
Applicant: Xylem IP Management S.à r.l.
Inventor： Ralf Fiekens , Reiner Fietzek , Manfred Salvermoser , Nicole Brüggemann
IPC: C01B13/11
Abstract: A method for producing ozone at elevated pressure with a capacity of at least 1 kg ozone/hour by an ozone generator having a high voltage electrode and a counter electrode. The electrodes delimit a gap in which a dielectric is arranged and through which a gas containing oxygen and having a gas pressure of pgas flows. The high voltage electrode and the counter electrode with a connection for an electric power supply to generate discharges are provided in at least one discharge gap. The power supply provides a voltage in a range from 1 kV to 50 kV and wherein stroke widths di of the discharge are distributed between a minimum stroke width dmin and a maximum stroke width dmax. The gas pressure pgas of the gas containing oxygen at the outlet of the ozone generator is at least 3 bar.
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公开(公告)号：US10781949B2
公开(公告)日：2020-09-22
申请号：US15778760
申请日：2016-11-24
Applicant: Xylem IP Management S.à r.l.
Inventor： Stefan Nordemo
IPC: F16L23/00 , F16L23/036 , F16L25/12 , F04D29/42 , F04D29/60
Abstract: A pipe connector for connecting a first element to a second element. The pipe connector includes a pipe segment, a first flange located at a first end of the pipe segment and configured to be connected to the first element, and a second flange located at a second end of the pipe segment and configured to be connected to the second element. The first flange includes a circumferential anchor flange that is fixedly connected to the pipe segment at the first end. A flange insert is displaceable in the axial direction of the pipe connector in relation to the anchor flange between a retracted position and an extended position, and a mechanism for displacing the flange insert in relation to the anchor flange. The flange insert in the extended position protrudes in the axial direction in relation to the anchor flange.
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公开(公告)号：US20200156029A1
公开(公告)日：2020-05-21
申请号：US16304772
申请日：2017-05-22
Applicant: Xylem IP Management S.à r.l.
Inventor： Martin Wessman , Jürgen Mökander , Lars Uby
Abstract: A treatment plant and method for controlling a treatment plant suitable for treatment of wastewater. The treatment plant includes a circulation channel housing liquid, a submersible flow generating machine arranged in the circulation channel and generating a liquid flow along the circulation channel, and a control unit that is operatively connected to the flow generating machine. The flow generating machine is driven in operation by the control unit. The method includes the steps of: driving the flow generating machine at a nominal speed, decreasing the rotational speed of the flow generating machine from the set nominal speed, detecting the rotational speed at which the torque of the flow generating machine is equal to a predetermined threshold, and determining the flow velocity of the liquid at the flow generating machine based on a predetermined relationship between the rotational speed of the flow generating machine and the flow velocity of the liquid.
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公开(公告)号：US10533149B2
公开(公告)日：2020-01-14
申请号：US15524715
申请日：2015-10-22
Applicant: XYLEM IP MANAGEMENT S.À R.L.
Inventor： Wilfried Stiller , Ulrich Lüdersen , Eilert Balssen
Abstract: A tempering device for tempering of biomass contained in a container, including at least one tempering mechanism, and at least one conveying device for conveying a mass flow of biomass in a main flow direction. The at least one conveying device includes at least one agitator, and wherein the at least one tempering mechanism is arranged in the main flow direction generated by the at least one conveying device. The at least one tempering mechanism is tubular with an inner tube and with an outer tube arranged coaxially to the inner tube. The inner tube and the outer tube form an intermediate space through which a tempering medium may flow. The tempering mechanism is oriented relative to the conveying device such that, in operation of the heating device, at least 40% of the delivery volume of the mass flow generated by the conveying device flows through the inner tube.
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Patent Agency Ranking
公开(公告)号：US10393122B2
公开(公告)日：2019-08-27
申请号：US15318841
申请日：2015-06-15
Applicant: XYLEM IP MANAGEMENT S.À R.L.
Inventor： Martin Larsson , Jürgen Mökander , Martin Zetterquist
Abstract: A pump station arrangement and a method for turning off a pump configured for pumping liquid via a conduit. The pump, before being turned off, being driven at an operational frequency (FN) by a control unit. The method is characterized by the steps of, ramping down the frequency of the pump due to a turn off instruction, the terminal frequency of the ramping down being equal to the operational frequency (FN) of the pump minus at least 10 Hz and the ramping down time being at least a reflection time (TR) for the conduit in question, and the terminal frequency of the ramping down not being less than 10 Hz, and stopping the pump after the ramping down.
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公开(公告)号：US20190257468A1
公开(公告)日：2019-08-22
申请号：US16398819
申请日：2019-04-30
Applicant: Xylem IP Management S.à r.l.
Inventor： Gert Hallgren
Abstract: A guide rail assembly for a submersible machine as well as a guide rail holder for such a guide rail assembly is described herein. The guide rail holder includes a radially extending support body and an axially extending post, which is rigidly connected to the support body and which is adapted to be inserted into an end of the guide rail. An engagement head is connected to the post at a distance from the support body and has a greater radial extension than the post. The engagement head includes a radially expandable member that is adapted to be reversibly manipulated between an active state, in which the expandable member is in engagement with the guide rail, and an inactive state, in which the expandable member is disengaged from the guide rail.
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公开(公告)号：US10287196B2
公开(公告)日：2019-05-14
申请号：US15122801
申请日：2015-02-24
Applicant: XYLEM IP MANAGEMENT S.À R.L.
Inventor： Lars Uby
Abstract: A treatment plant and a method for controlling such a treatment plant suitable for treatment of waste water. The treatment plant includes a circulation channel adapted to house a liquid, an aeration arrangement adapted to supply a gas flow Q including oxygen to the liquid, at least one flow generating machine arranged in the circulation channel and adapted to generate a liquid flow along the circulation channel, and a control unit.
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公开(公告)号：US20180356017A1
公开(公告)日：2018-12-13
申请号：US15778760
申请日：2016-11-24
Applicant: Xylem IP Management S.à r.l.
Inventor： Stefan Nordemo
IPC: F16L23/00 , F16L23/036 , F16L25/12 , F04D29/42 , F04D29/60
Abstract: A pipe connector for connecting a first element to a second element. The pipe connector includes a pipe segment, a first flange located at a first end of the pipe segment and configured to be connected to the first element, and a second flange located at a second end of the pipe segment and configured to be connected to the second element. The first flange includes a circumferential anchor flange that is fixedly connected to the pipe segment at the first end. A flange insert is displaceable in the axial direction of the pipe connector in relation to the anchor flange between a retracted position and an extended position, and a mechanism for displacing the flange insert in relation to the anchor flange. The flange insert in the extended position protrudes in the axial direction in relation to the anchor flange.
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公开(公告)号：US10143073B2
公开(公告)日：2018-11-27
申请号：US15701631
申请日：2017-09-12
Applicant: XYLEM IP MANAGEMENT S.à r.l.
Inventor： Reiner Fietzek , Dirk Riepe
IPC: H05B41/392 , H05B1/02 , H05B33/06 , H05B41/298
Abstract: A control algorithm for operating a fluid disinfecting system by UV radiation, wherein the UV radiation is generated by at least one UV lamp including a pair of heating cathodes having a discharge voltage (UD), the UV lamp is operated by an electronic ballast unit equipped with the control algorithm for adjusting the UV power of the UV lamp by pulse-width-modulation to reduce UV power. The control algorithm decreases the current to a level (Ikmin), increases the voltage amplitude (U) above the discharge voltage (UD) until a desired UV power level is reached. The pulse width (PW) is decreased with increasing voltage amplitude (U) until PWmin is reached. The decrease in current and the increase in voltage generate an ineffective current-voltage-ratio in which excess current heats the cathode. An electronic ballast equipped with the algorithm and systems equipped with such ballasts are also disclosed.
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