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    WATER SUPPLY APPARATUS
    4.
    发明专利
    WATER SUPPLY APPARATUS 未知

    公开(公告)号：MY163804A

    公开(公告)日：2017-10-31

    申请号：MYPI2010003474

    申请日：2009-01-22

    Applicant: EBARA CORP

    Inventor： KOMATSU TAKAHIDE ,  KANEDA KAZUHIRO ,  TEJIMA TOMOHARU ,  HIGAKI NOBUHIRO ,  MIYAUCHI SACHIKO

    IPC: E03B11/16 ,  E03B5/00 ,  F04B49/06 ,  F04D15/00

    Abstract: A WATER SUPPLY APPARATUS (1) IS CAPABLE OF PERFORMING A BACKUP OPERATION, WITHOUT LOWERING WATER SUPPLY CAPABILITY, WHEN A FAILURE HAS OCCURRED IN ONE CONTROL SUBSTRATE DUE TO SURGE OR NOISE CAUSED BY LIGHTNING OR SENSOR WEAR, BY SWITCHING TO THE OTHER CONTROL SUBSTRATE, AND CAPABLE OF RELIABLY PERFORMING THE BACKUP OPERATION. THE WATER SUPPLY APPARATUS INCLUDES: A PLURALITY OF PUMPS (3); A PLURALITY OF MOTORS (4) CONFIGURED TO DRIVE THE PLURALITY OF PUMPS (3); A PLURALITY OF INVERTERS EACH CONFIGURED FOR VARIABLE ROTATIONAL SPEED CONTROL OF A CORRESPONDING ONE OF THE PLURALITY OF MOTORS (4); AND A FIRST CONTROL BOARD AND A SECOND CONTROL BOARD EACH CONFIGURED TO CONTROL THE PLURALITY OF INVERTERS. WHEN AN ABNORMALITY OCCURS IN THE FIRST CONTROL BOARD, THE SECOND CONTROL BOARD BACKS UP THE FIRST CONTROL BOARD TO THEREBY ALLOW THE WATER SUPPLY APPARATUS TO CONTINUE ITS OPERATIONS. THE FIRST CONTROL BOARD, THE PLURALITY OF INVERTERS, AND THE SECOND CONTROL BOARD ARE CONNECTED IN SERIES BY COMMUNICATION LINES.

    WATER SUPPLY APPARATUS AND INVERTER
    6.
    发明专利
    WATER SUPPLY APPARATUS AND INVERTER 未知

    公开(公告)号：HK1086313A1

    公开(公告)日：2006-09-15

    申请号：HK06106341

    申请日：2006-06-01

    Applicant: EBARA CORP

    Inventor： HIRAIWA HIRONAO ,  NAKAJIMA KAORU ,  KOMATSU TAKAHIDE ,  SATO MOTOYASU ,  ISHIHARA SEIICHI ,  TAMURA HIROYUKI ,  TEJIMA TOMOHARU ,  NAKAHARA SATOSHI ,  HIGAKI NOBUHIRO ,  KURODA KIYOSHI

    IPC: F04B49/06 ,  H02M7/48 ,  H02P20060101

    Abstract: PROBLEM TO BE SOLVED: To provide a water feed apparatus capable of dealing with a configuration change in a flexible and inexpensive manner.SOLUTION: A water feed apparatus 1 includes: a plurality of pumps 3; a plurality of inverters 5 that variably control rotation frequency of the pumps corresponding thereto; and a control unit 6 that controls the inverters 5. Each of the inverters 5 includes: a main board 50 having a rectifier 500 that rectifies alternate current power, a power unit 501 that converts the power rectified by the rectifier 500 into alternate current power at a desired frequency, a central control unit 504 that controls the power unit 501, and a communication unit that exchanges information with the outside; and an input-output board 54 having an input terminal that inputs a signal from the outside and an output terminal that outputs a signal to the outside.

    WATER SUPPLY DEVICE
    7.
    发明公开
    WATER SUPPLY DEVICE 审中-公开

    公开(公告)号：EP2667033A4

    公开(公告)日：2018-01-24

    申请号：EP12736816

    申请日：2012-01-20

    Applicant: EBARA CORP

    Inventor： KOMATSU TAKAHIDE ,  KARAKI RYOTARO

    IPC: F04D15/00

    CPC classification number: F04D15/0066 ,  F04D15/0088 ,  F05D2270/3013

    Abstract: A water supply apparatus is configured to meet energy-saving demands by controlling a pump so that the rotational speed of the pump is lowered while keeping a constant flow rate. The water supply apparatus includes a pump for pressurizing and delivering water, a frequency converter for supplying electric power to the pump to operate the pump at a variable rotational speed, a discharge-side pressure sensor for detecting a pressure at a discharge side of the pump, and a controller (15) for controlling the rotational speed of the pump. The controller (15) stores a plurality of control head curves (B, C 1 , C 2 , C 3 ) representing different relationships between flow rates (Q) and heads (H), and controls the rotational speed of the pump based on an alternatively selected one of the control head curves (B, C 1 , C 2 , C 3 ).

    Method for starting water supply system and water supply system
    9.
    发明专利
    Method for starting water supply system and water supply system 有权
    启动供水系统和供水系统的方法

    公开(公告)号：JP2012229699A

    公开(公告)日：2012-11-22

    申请号：JP2012162199

    申请日：2012-07-23

    Applicant: Ebara Corp ,  株式会社荏原製作所

    Inventor： KANEDA KAZUHIRO ,  KOMATSU TAKAHIDE ,  NAKAJIMA KAORU ,  TEJIMA TOMOJI

    IPC: F04B49/02 ,  F04D15/00

    Abstract: PROBLEM TO BE SOLVED: To provide a method for starting a water supply system that can eliminate a lack of water supply pressure caused in such a case as when flush valves for flushing toilets in facilities such as a school are used simultaneously.SOLUTION: The water supply system includes a pump 14, a motor 16 for driving the pump 14, an inverter 18 for controlling the rotation frequency of the motor 16, a pressure sensor 34 for detecting the pressure on the discharge side of the pump 14, and an internal memory 48. The internal memory 48 is made to memorize the day of the week and the time when the pressure detected by the pressure sensor 34 falls into a preset pressure or less, thereby making the pump 14 operate forcedly for a predetermined time starting at a few minutes before the same time on the same day of the following week.

    Abstract translation: 要解决的问题：提供一种启动供水系统的方法，其可以消除在同时使用诸如学校的设施中的用于冲洗马桶的冲洗阀的情况下引起的供水压力的缺乏。

    解决方案：供水系统包括泵14，用于驱动泵14的电动机16，用于控制电动机16的旋转频率的逆变器18，用于检测电动机16的排出侧的压力的压力传感器34 泵14和内部存储器48.使内部存储器48记忆一周中的日期和由压力传感器34检测到的压力落入预设压力或更小的时间，从而使泵14强制运行 在下一周的同一天的同一时间前几分钟开始的预定时间。 版权所有（C）2013，JPO＆INPIT

    Abnormality detection method of pressure tank and water supply device
    10.
    发明专利
    Abnormality detection method of pressure tank and water supply device 有权
    压力罐和供水装置异常检测方法

    公开(公告)号：JP2012144976A

    公开(公告)日：2012-08-02

    申请号：JP2012087690

    申请日：2012-04-06

    Applicant: Ebara Corp ,  株式会社荏原製作所

    Inventor： KANEDA KAZUHIRO ,  KOMATSU TAKAHIDE ,  NAKAJIMA KAORU ,  TEJIMA TOMOJI

    IPC: E03B11/16 ,  F04B51/00 ,  F04D15/00

    Abstract: PROBLEM TO BE SOLVED: To provide an abnormality detection method of a pressure tank which can accurately detect the abnormality of the pressure tank such as decrease in the charged pressure, and a water supply device with an abnormality detection function for the pressure tank.SOLUTION: An abnormality detection method of a pressure tank monitors the rotational speed of a pump 14 of a water supply device 10, and if the pump 14 restarts before the rotation of the pump 14 completely stops, determines that abnormality occurs in a pressure tank 36.

    Abstract translation: 要解决的问题：提供一种可以精确地检测压力罐异常的压力罐的异常检测方法，例如降低加压压力，以及具有用于压力罐的异常检测功能的给水装置 。 解决方案：压力罐的异常检测方法监视供水装置10的泵14的转速，并且如果泵14在泵14的旋转完全停止之前重新启动，则确定异常发生在 压力罐36.版权所有（C）2012，JPO＆INPIT

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