-
公开(公告)号：JP2014031796A
公开(公告)日：2014-02-20
申请号：JP2013238204
申请日：2013-11-18
Applicant: Ebara Corp , 株式会社荏原製作所
Inventor： KOMATSU TAKAHIDE , KANEDA KAZUHIRO , MIYAUCHI SHOKO
IPC: F04D15/00
Abstract: PROBLEM TO BE SOLVED: To provide a water supply device that can prevent water hammer from occurring in a case where a pump is activated first after a water supply device stops due to power failure or failure of the water supply device.SOLUTION: A water supply device 1 includes: a pump P; a motor M that drives the pump P; and a control unit 35 that activates the pump P when a discharge side pressure is equal to or less than a predetermined activation pressure, and performs a command of rotation speed of the pump P to an inverter 20 so that the discharge side pressure becomes a target pressure. The control unit 35 performs a protective activation operation in which increase of the discharge side pressure is more gradual than a normal activation operation, when the pump P is activated after the water supply device 1 stops for a long time.
Abstract translation: 要解决的问题：提供一种在供水装置由于电源故障或供水装置的故障停止而首先启动泵的情况下可以防止发生水锤的供水装置。解决方案：供水 装置1包括：泵P; 驱动泵P的马达M; 以及控制单元35，其在排出侧压力等于或小于预定的活动压力时启动泵浦P，并且将泵P的转速指令转换到逆变器20，使得排出侧压力成为目标 压力。 控制单元35执行保护激活操作，其中在供水装置1长时间停止之后激活泵P时，排出侧压力的增加比正常的启动操作更加缓慢。
-
公开(公告)号：JP2013231347A
公开(公告)日：2013-11-14
申请号：JP2013117078
申请日：2013-06-03
Applicant: Ebara Corp , 株式会社荏原製作所
Inventor： KOMATSU TAKAHIDE , KANEDA KAZUHIRO , TEJIMA TOMOJI , MIYAUCHI SHOKO
Abstract: PROBLEM TO BE SOLVED: To provide a boost water supply system in which air is prevented from being sucked from a hydrant between a water supply device for lower floors and a water supply device for upper floors.SOLUTION: A boost water supply system comprises a first water supply device BP1 for lower floors connected to a water pipe 2 and a second water supply device BP2 for upper floors connected in series to the first water supply device BP1 and disposed at a higher position than the first water supply device BP1. The first water supply device BP1 includes a pump P1 and a control panel CN1 which controls operation of the pump P1, and the second water supply device BP2 includes a pump P2 and a control panel CN2 which controls operation of the pump P2. A suction side pressure sensor PS21 which measures a suction side pressure of the second water supply device BP2 is connected to the control panel CN2. When the suction side pressure of the second water supply device BP2 is decreased to a predetermined value, the control panel CN2 stops the operation of the pump P2.
Abstract translation: 要解决的问题：提供一种增压供水系统，其中防止空气从位于下层的供水装置和上层供水装置之间的消防栓吸入。解决方案：增压供水系统包括第一 与水管2连接的下层的供水装置BP1和与第一供水装置BP1串联连接并位于比第一供水装置BP1更高的位置的上层的第二供水装置BP2。 第一供水装置BP1包括泵P1和控制泵P1的操作的控制面板CN1，第二供水装置BP2包括泵P2和控制泵P2的运转的控制面板CN2。 测量第二供水装置BP2的吸入侧压力的吸入侧压力传感器PS21与控制面板CN2连接。 当第二供水装置BP2的吸入侧压力降低到预定值时，控制面板CN2停止泵P2的操作。
-
公开(公告)号：JP2013174125A
公开(公告)日：2013-09-05
申请号：JP2013104821
申请日：2013-05-17
Applicant: Ebara Corp , 株式会社荏原製作所
Inventor： KOMATSU TAKAHIDE , KANEDA KAZUHIRO , TEJIMA TOMOJI , HIGAKI NOBUHIRO , MIYAUCHI SHOKO
Abstract: PROBLEM TO BE SOLVED: To provide a water supply device capable of performing backup of a control board without reducing a feedwater capacity by another control board even when one control board does not function because of the generation of surge, noise or the like due to lightning, or the lifetime of various sensors.SOLUTION: A water supply device 1 includes: a plurality of pumps 3; a plurality of invertors INV for performing variable control over the rotating speed of the pumps 3; and a first control board CN1 and a second control board CN2 for controlling the plurality of the invertors INV. When an abnormality occurs in the first control board CN1, the second control board CN2 backs up the control board CN1 so that operations can be continued. One of two sets of level switches WL1 and WL2, which are installed in a water receiving tank 2, is connected to the first control board CN1 and the other is connected to the control board CN2.
Abstract translation: 要解决的问题：即使一个控制板由于由于闪电而产生的浪涌，噪声等而不起作用，也能够在不降低另一个控制板的供水能力的情况下提供控制板的备份的供水装置 ，或各种传感器的寿命。解决方案：供水装置1包括：多个泵3; 用于对泵3的转速执行可变控制的多个反相器INV; 以及用于控制多个反相器INV的第一控制板CN1和第二控制板CN2。 当第一控制板CN1发生异常时，第二控制板CN2备份控制板CN1，从而能够继续进行操作。 安装在接收水箱2中的两组液位开关WL1和WL2中的一组连接到第一控制板CN1，另一组连接到控制板CN2。
-
公开(公告)号：JP2013147932A
公开(公告)日：2013-08-01
申请号：JP2013097723
申请日：2013-05-07
Applicant: Ebara Corp , 株式会社荏原製作所
Inventor： KOMATSU TAKAHIDE , MIYAKE YOSHIO , UEI KEITA
Abstract: PROBLEM TO BE SOLVED: To provide a booster water supply system which prevents excessive back pressure from being imposed on a water supply device for lower stories, by preventing the backflow of water to the lower stories of a building from upper stories thereof.SOLUTION: This booster water supply system includes a first water supply device BP1 for the lower stories, which is connected to a water service pipe 2, and a second water supply device BP2 for the upper stories, which is serially connected to the first water supply device BP1 and arranged in a position higher than the first water supply device BP1. A primary pressure control valve 35 is provided on the discharge side of the first water supply device BP1.
Abstract translation: 要解决的问题：提供一种增压供水系统，其通过防止水从建筑物的下层向上层回流而防止对低层故障的供水装置施加过大的背压。解决方案：这 增压供水系统包括连接到供水管2的用于下层的第一供水装置BP1和与第一供水装置BP1串联连接的上层的第二供水装置BP2和 布置在比第一供水装置BP1高的位置。 初级压力控制阀35设置在第一供水装置BP1的排出侧。
-
公开(公告)号：JP2012225349A
公开(公告)日：2012-11-15
申请号：JP2012161837
申请日：2012-07-20
Applicant: Ebara Corp , 株式会社荏原製作所
Inventor： HIRAIWA HIRONAO , NAKAJIMA KAORU , KOMATSU TAKAHIDE , TEJIMA TOMOJI , NAKAHARA SATOSHI , HIGAKI NOBUHIRO , KURODA KIYOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a rotary machine device which continues operation without trouble for a demanding user even if a trouble occurs on an inverter control board.SOLUTION: A water supply device 1 as a rotary machine device includes a plurality of pumps 3, a plurality of inverters 5 which variably control a rotation frequency of a corresponding pump and a controller 6 controlling the plurality of inverters 5. The controller 6 includes a plurality of control boards 60a and 60b, each of which independently controls the plurality of inverters 5, and if a trouble occurs on either the control board 60a or the control board 60b during operation, the other standby control board 60b or control board 60a backups to control the plurality of inverters 5.
Abstract translation: 要解决的问题：即使在逆变器控制板上发生故障，也可以提供一种不需要用户的故障的旋转机器。 作为旋转机械装置的供水装置1包括多个泵3，可变地控制相应泵的旋转频率的多个逆变器5和控制多个逆变器5的控制器6.控制器 图6所示的多个控制基板60a，60b分别独立地控制多个逆变器5，在操作中在控制基板60a或控制基板60b上发生故障时，另一个备用控制基板60b或控制基板 60a备份来控制多台逆变器5.版权所有：（C）2013，JPO＆INPIT
-
Patent Agency Ranking36.发明专利Maintenance system, method of operating maintenance system, and method of manufacturing pump unit 审中-公开维护系统，操作维护系统的方法和制造泵单元的方法
公开(公告)号：JP2009134624A
公开(公告)日：2009-06-18
申请号：JP2007311277
申请日：2007-11-30
Applicant: Ebara Corp , Ebara Densan Ltd , 株式会社荏原製作所 , 株式会社荏原電産
Inventor： KOMATSU TAKAHIDE , MIYAUCHI SHOKO , SUZUKI HISASHI
CPC classification number: Y02P90/30
Abstract: PROBLEM TO BE SOLVED: To provide a maintenance system that can streamline the maintenance of pump units whose destination is unknown at the stage of manufacturing and shipping, a method of operating the maintenance system, and a method of manufacturing pump units especially suitable for the operation of the maintenance system. SOLUTION: The maintenance system includes a maintenance side server 21 storing data D1 on basic information including an identification symbol capable of identifying each individual pump unit 60 produced, and a reception means 22 for receiving at the maintenance side server 21 the basic information attached in advance in an encoded form to each pump unit 60 installed on a site via communication lines. The reception means 22 is configured to receive information capable of identifying the site in addition to the basic information. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：提供一种可以简化在制造和运输阶段目的地未知的泵单元的维护的维护系统，操作维护系统的方法以及特别适用的泵单元的制造方法 用于维护系统的运行。 解决方案：维护系统包括：维护侧服务器21，存储关于基本信息的数据D1，该基本信息包括能够识别生成的各个泵单元60的识别符号;以及接收装置22，用于在维护侧服务器21接收基本信息 预先以编码形式附接到经由通信线路安装在现场的每个泵单元60。 接收装置22被配置为除了基本信息之外还接收能够识别站点的信息。 版权所有（C）2009，JPO＆INPIT
-
37.发明专利Starting frequency abnormality detecting method of pump and water supply device 有权泵和水供应装置启动频率异常检测方法
公开(公告)号：JP2006169962A
公开(公告)日：2006-06-29
申请号：JP2004358957
申请日：2004-12-10
Applicant: Ebara Corp , Ebara Densan Ltd , 株式会社荏原製作所 , 株式会社荏原電産
Inventor： KANEDA KAZUHIRO , KOMATSU TAKAHIDE , NAKAJIMA KAORU , TEJIMA TOMOJI
Abstract: PROBLEM TO BE SOLVED: To provide a starting frequency abnormality detecting method of a pump and a water supply device having the starting frequency abnormality detecting function of the pump, capable of accurately detecting abnormality of a starting frequency of the pump incorporated into the water supply device. SOLUTION: This invention is the starting frequency abnormality detecting method of the pump 14 incorporated into the water supply device 10, and counts a starting frequency or a stopping frequency of the pump 14 in a predetermined measuring period, and determines that the starting frequency of the pump 14 is abnormal when the frequency exceeds a reference value by comparing the counted frequency with the predetermined reference value. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：为了提供具有泵的起动频率异常检测功能的泵和供水装置的起动频率异常检测方法，能够精确地检测结合到泵的泵的起动频率的异常 供水装置 解决方案：本发明是并入供水装置10中的泵14的起动频率异常检测方法，并且在预定测量周期内对泵14的起动频率或停止频率进行计数，并且确定起动 当通过将计数的频率与预定的参考值进行比较，当频率超过参考值时，泵14的频率异常。 版权所有（C）2006，JPO＆NCIPI
-
公开(公告)号：JP2006161613A
公开(公告)日：2006-06-22
申请号：JP2004351863
申请日：2004-12-03
Applicant: Ebara Corp , Ebara Densan Ltd , 株式会社荏原製作所 , 株式会社荏原電産
Inventor： KANEDA KAZUHIRO , KOMATSU TAKAHIDE , NAKAJIMA KAORU , TEJIMA TOMOJI
Abstract: PROBLEM TO BE SOLVED: To provide starting method of a water-supplying device resolving insufficient water supply pressure occurring when flush valves for flushing toilets are used at the same time in a facility such as schools.
SOLUTION: In Fig. 9, a plurality of motors 116 for pumps are started at the same frequency (step S1 of starting with equal velocity). Whether or not, a difference F
1 -F
L between an operational frequency F
1 of n units of motors 116 in operation at the same frequency and a lower limit frequency F
L corresponding to a lower limit value P
L of a target pressure is not more than (n-1)/n of a difference between a maximum operation frequency F
max of the motors 116 and the lower limit frequency F
L , is determined (step S2 of determining frequency). If it is determined to be not more than (n-1)/n, one unit out of the operating pumps is stopped, then the step S2 of determining frequency is repeated (step of repeating). If it is determined to be more than (n-1)/n, the frequency of the motor 116 of at least one unit of the pumps is fixed, and the frequencies of the motors 116 of the other pumps are changed (step S5 of transferring operation).
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：提供一种供水装置的启动方法，其解决在诸如学校的设施中同时使用用于冲洗马桶的冲水阀时发生的不足的供水压力。
解决方案： 如图9所示，以相同的频率启动多个用于泵的电动机116（以等速开始的步骤S1）。 是否在相同频率运行的n个单元的电动机116的工作频率F
1 之间的差F 1 -F L 和对应于目标压力的下限值P L 的下限频率F L 不大于最大值之间的差的（n-1）/ n 确定电动机116的运转频率F max 和下限频率F L （确定频率的步骤S2）。 如果确定为不大于（n-1）/ n，则停止从操作泵中的一个单元，然后重复确定频率的步骤S2（重复的步骤）。 如果确定为大于（n-1）/ n，则泵的至少一个单元的电动机116的频率是固定的，并且其它泵的电动机116的频率改变（步骤S5 转移操作）。 版权所有（C）2006，JPO＆NCIPI -
公开(公告)号：JP2004092436A
公开(公告)日：2004-03-25
申请号：JP2002252128
申请日：2002-08-29
Applicant: Ebara Corp , 株式会社荏原製作所
Inventor： KAWAGUCHI HITOSHI , SUGITA MATSUO , YAGI KAORU , KOMATSU TAKAHIDE , NAKANIWA HIROBUMI
Abstract: PROBLEM TO BE SOLVED: To efficiently cool an inverter device without equipping a separately attaching cooling fan by easily performing maintenance of the inverter device. SOLUTION: This water supply device has two vertical pumps 12a and 12b arranged in parallel, the inverter device 54 for supplying electric power to the vertical pumps 12a and 12b and a control board 76 for housing various control apparatuses in a cabinet 10. The inverter device 54 is housed inside an inverter case 56 separate from the control board 76, and the inverter case 56 is arranged above the vertical pumps 12a and 12b so as to be freely extractable from the cabinet 10 to this side via a hinge 58. COPYRIGHT: (C)2004,JPO
-
公开(公告)号：JP2004092086A
公开(公告)日：2004-03-25
申请号：JP2002252127
申请日：2002-08-29
Applicant: Ebara Corp , 株式会社荏原製作所
Inventor： KAWAGUCHI HITOSHI , SUGITA MATSUO , YAGI KAORU , KOMATSU TAKAHIDE , NAKANIWA HIROBUMI
IPC: E03B5/00
Abstract: PROBLEM TO BE SOLVED: To carry out maintenance accompanied by the detaching/attaching of a pump in a short time without giving an excessive burden to an operator.
SOLUTION: Pipe mounting pitches P of delivery flanges 150 of vertical pumps 12a, 12b are set larger than outer diameters D of pump casings of the vertical pumps 12a, 12b. The vertical pumps 12a, 12b are arranged at the front face side of each device contained in the cabinet 10.
COPYRIGHT: (C)2004,JPOAbstract translation: 要解决的问题：在短时间内进行泵的拆卸/附接的维护，而不会给操作者带来过多的负担。 解决方案：垂直泵12a，12b的输送法兰150的管道安装间距P设定为大于垂直泵12a，12b的泵壳体的外径D。 垂直泵12a，12b布置在容纳在机壳10中的每个装置的正面侧。版权所有（C）2004，JPO
-
-
-
-
-
-
-
-
-
Search Results
65
records
(took 0.04 seconds)
