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1. 发明专利

JP2004003437A Energy recovery device and operation method thereof 有权
标题翻译：能量回收装置及其操作方法
公开(公告)号：JP2004003437A
公开(公告)日：2004-01-08
申请号：JP2003015524
申请日：2003-01-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SATO KOICHI , YANAGISAWA SEIJI , TANAKA YUJI , TAKAHASHI SHINICHI , FUJITA YUKIHISA , MATSUMOTO OSAMU , YAMAMOTO TOSHIHIKO , SANO MASAHIRO
IPC分类号： F03B7/00 , F03B13/08 , F03B15/04 , F24F5/00
CPC分类号： F24F5/0007 , F24F5/0017 , Y02E10/22 , Y02E10/223 , Y02E10/226 , Y02E60/147
摘要： PROBLEM TO BE SOLVED: To collet and reuse intact kinetic energies as an electric power by a water-wheel generation.
SOLUTION: An energy recovery device composes a heat storage tank installed in a lower part of a building, a storage pump of a secondary system which pumps up water of the heat storage tank and supplies water to air-conditioning constellation, a primary water pipe prepared between an outlet port of the storage pump and the conditioning loading constellation, a second water pipe to return to the heat storage tank water by which firing was carried out from the outlet port of the air-conditioning loading constellation, an expansion tank or vacuum breaker prepared in topmost part of the second water pipe, a water wheel prepared in section which can collect from the air-conditioning loading constellation potential energy of water which carried out firing in lower part of the second water pipe, a generator in which a rotary drive is carried out by torque which water wheel generates and which generates electric power by it, an inverter which connects with the output end of the generator and generates DC power, and a linkage cooperation fitment formed in motor side for the storage pump driving of the secondary system to receive DC power from the inverter, to convert the DC power into AC power and to supply the AC power to the motor side for driving the storage pump.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：通过水轮产生将完整的动能作为电力进行夹套和再利用。解决方案：能量回收装置构成安装在建筑物的下部的蓄热箱，辅助系统的储存泵，其将蓄热箱的水抽出并向空调星座供水，主要在储存泵的出口和调节装载星座之间准备的水管，第二水管，返回到从空调装载星座的出口进行燃烧的蓄热箱水，膨胀箱或在第二水管的最上部准备的真空破碎器，一部分制备的水轮，其可以从在第二水管的下部进行燃烧的水的空调装载星座势能收集，其中，旋转驱动通过水轮产生的扭矩进行，并且通过它产生电力，与发电机的输出端连接的逆变器和产生直流电力，以及在电动机侧形成的用于二次系统的存储泵驱动的联动配合装置，以从逆变器接收直流电力，将DC电力转换为AC电力，并将AC电力提供给电动机侧用于驱动储存泵。版权所有（C）2004，JPO

2. 发明专利

JP2004003414A Energy recovery system and its operation method 审中-公开
标题翻译：能源回收系统及其运行方法
公开(公告)号：JP2004003414A
公开(公告)日：2004-01-08
申请号：JP2002259655
申请日：2002-09-05
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SATO KOICHI , YANAGISAWA SEIJI , WATABE HIDE , KUNII HIROSHI , FUJITA YUKIHISA , SHIMA AKIO , TANAKA YUJI , TAKAHASHI SHINICHI
IPC分类号： F03B13/06
CPC分类号： Y02E10/22 , Y02E60/17 , Y02P70/525
摘要： PROBLEM TO BE SOLVED: To provide a system which recoveries effectively intake kinetic energies in heat storage type air conditioning system having storage pump. SOLUTION: A heat storage type air conditioning system includes a heat storage tank 16 for manufacturing heat at an upstream, and a heating source machine 4, and manufactures cold water or warm water by utilizing cheap commercial power supplies 18, such as night time electrical power. A lineage cooperation fitment 20 is formed between motors 2 and power supplies 19 which actuate storage pump 1. This and a motor 2 are connected via a cable 21. Further, an output of the inverter is connected to the motor 2 via a cable 14a. A lineage cooporation fitment 20 is operated to interact electric power on the motor 2 in the orientations of providing from a commercial power supply 19 while water wheel does not operate, and is operated to interact electric power of commercial power supply in the orientations and doubled electric power when insufficient with electric power which generator 13 generates under load of the storage pump 1. When generated output remains, it feeds back from the inverter to the commercial power supply through lineage cooperation fitment. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种具有在具有储存泵的储热型空调系统中有效地回收摄取动能的系统。解决方案：一种蓄热式空调系统，包括用于在上游制造热量的蓄热箱16和加热源机4，并且通过利用诸如夜间的便宜商用电源18制造冷水或温水时间电力。在电动机2和驱动存储泵1的电源19之间形成谱系配合装置20.该电动机2和电动机2经由电缆21连接。此外，逆变器的输出经由电缆14a与电动机2连接。运行谱系配置装置20以在水轮不工作的同时从商用电源19提供的方向在电动机2上相互作用电力，并且被操作以相互影响商业电源的电力方向和双电发电机13在蓄电泵1的负载下产生的电力不足时的功率。当产生的输出保持时，通过谱系配合装置将其从逆变器反馈到商用电源。版权所有（C）2004，JPO

3. 发明专利

DE60215293D1 未知
公开(公告)号：DE60215293D1
公开(公告)日：2006-11-23
申请号：DE60215293
申请日：2002-08-27
申请人： HITACHI LTD
发明人： SATO KOICHI , YANAGISAWA SEIJI , WATABE SHU , FUJITA YUKIHIRO , SHIMA AKIO , TANAKA YUJI , TAKAHASHI SHINICHI , KUNII HIROSHI
IPC分类号： F24F5/00
摘要： In the air-conditioning system, a primary side to generate heat includes a heat storage (16) and a heat source (4) and produces cool or warm water using an inexpensive commercial power source (19) such as a nighttime power source. A system collaboration unit (20) is disposed between a motor to drive a water pump and a power source. The unit is connected to the motor (2) via a cable (21). An output from the inverter is connected to the motor via a cable.

4. 发明专利

DE60215293T2 未知
公开(公告)号：DE60215293T2
公开(公告)日：2007-05-24
申请号：DE60215293
申请日：2002-08-27
申请人： HITACHI LTD
发明人： SATO KOICHI , YANAGISAWA SEIJI , WATABE SHU , FUJITA YUKIHIRO , SHIMA AKIO , TANAKA YUJI , TAKAHASHI SHINICHI , KUNII HIROSHI
IPC分类号： F24F5/00
摘要： In the air-conditioning system, a primary side to generate heat includes a heat storage (16) and a heat source (4) and produces cool or warm water using an inexpensive commercial power source (19) such as a nighttime power source. A system collaboration unit (20) is disposed between a motor to drive a water pump and a power source. The unit is connected to the motor (2) via a cable (21). An output from the inverter is connected to the motor via a cable.

5. 发明专利

DK1329672T3 未知
公开(公告)号：DK1329672T3
公开(公告)日：2007-02-05
申请号：DK02019222
申请日：2002-08-27
申请人： HITACHI LTD
发明人： SATO KOICHI , YANAGISAWA SEIJI , WATABE SHU , FUJITA YUKIHIRO , SHIMA AKIO , TANAKA YUJI , TAKAHASHI SHINICHI , KUNII HIROSHI
IPC分类号： F24F5/00
摘要： In the air-conditioning system, a primary side to generate heat includes a heat storage (16) and a heat source (4) and produces cool or warm water using an inexpensive commercial power source (19) such as a nighttime power source. A system collaboration unit (20) is disposed between a motor to drive a water pump and a power source. The unit is connected to the motor (2) via a cable (21). An output from the inverter is connected to the motor via a cable.

6. 发明专利

DE3277927D1 CENTRIFUGAL PUMP 未知
公开(公告)号：DE3277927D1
公开(公告)日：1988-02-11
申请号：DE3277927
申请日：1982-08-25
申请人： HITACHI LTD
发明人： YANAGISAWA SEIJI , YOSHIDA MASAO , SHINOTSUKA HIDEKI , ISHIGAKI TATSUYA , MORIOKA KINYA
IPC分类号： F04D29/42 , F04D29/44
摘要： In a centrifugal pump including a pump runner, (1), and a casing (3) enclosing an outlet port (5) of the pump runner and forming a volute chamber (6) around the pump runner, at least one deflecting wall (11, 13, 14, 15) is provided for causing a fluid flux returning along an inner wall surface of the volute chamber toward the outlet port of the pump runner to be deflected so as to avoid production therein of a velocity component flowing in counter current to a fluid flux discharged through the outlet port of the pump runner. The provision of at least one deflecting wall enables a smooth flow of fluid to be obtained in the vicinity of the outlet port of the pump runner.

7. 发明专利

JPH0344236B2 失效
公开(公告)号：JPH0344236B2
公开(公告)日：1991-07-05
申请号：JP7283183
申请日：1983-04-27
申请人： HITACHI LTD
发明人： ISHIGAKI TATSUYA , YOSHIDA MASAO , YANAGISAWA SEIJI , NAKAE SHIGEKI , OONO KOJI
IPC分类号： F04D1/08 , F04D29/44
摘要： PURPOSE:To make a suction casing to be in common use with a discharge casing, by designing a dimension of an outer side surface of a water return channel at a final stage on a discharge casing side to be smaller than a diameter of an opening of the discharge casing, and arranging the outer side surface of the water return channel in the discharge casing. CONSTITUTION:A dimension of an outer side surface of a water return channel 333 at a final stage on a discharge casing 500 side communicating with an impeller chamber 331 is designed to be smaller than a diameter of an opening portion 503 of the discharge casing 500. The outer side surface of the water return channel 333 is arranged in the opening portion 503 of the discharge casing 500. With this arrangement, it is possible to make a suction casing 400 which is a largest part of a multi-stage pump to be in common use with the discharge casing 500, thereby permitting mass production of the pump. Further, there are provided legs to be mounted to bearing casings 700 and 800 outside of the suction and discharge casings 400 and 500, so that a mount direction of both the casings 400 and 500 may be freely selected to render a piping work flexible.

8. 发明专利

JP2000034983A WATER SUPPLY PUMP DEVICE 失效
公开(公告)号：JP2000034983A
公开(公告)日：2000-02-02
申请号：JP21087299
申请日：1999-07-26
申请人： HITACHI LTD
发明人： MORINAGA TSUTOMU , YANAGISAWA SEIJI , SATO KOICHI , YOSHIDA MASAO
IPC分类号： F04D15/00 , F04B49/06
摘要： PROBLEM TO BE SOLVED: To optimumly perform water supply controlling according to the hydraulic pressure inside a city water main pipe, as a pump suctioning side pressure, that is, the result of whether the pressure exceeds a target value or not. SOLUTION: When suction side water pressure sensed by a pressure sensor 5 arranged on a suction side of a pump 1 exceeds a preset target suctioning pressure, the pump 1 is acceleratingly controlled by means of a controller 7 through an inverter 3 so as to agree the hydraulic pressure on a discharge side of the pump 1 with the preset target value. On the contrary, when the suctioning side pressure is less than the target value, the pump it is deceleratingly controlled by means of the controller 7 for controlling the suctioning side hydraulic pressure.

9. 发明专利

JPH06108988A FEED WATER PUMP CONTROL DEVICE 失效
公开(公告)号：JPH06108988A
公开(公告)日：1994-04-19
申请号：JP25995992
申请日：1992-09-29
申请人： HITACHI LTD
发明人： MORINAGA TSUTOMU , YANAGISAWA SEIJI , SATO KOICHI , YOSHIDA MASAO
IPC分类号： F04D15/00
摘要： PURPOSE:To provide a highly efficient feed water pump control device which can be installed at low cost. CONSTITUTION:When the water supply demand quantity supplied by a pump 1 reaches a certain quantity or more, the rotating speed of a motor 2 is increased to the rated rotating speed or higher by an inverter 3 to cope with this. At this time, a controller 7 clocks the time of the rotating speed of the motor 2 being the rated rotating speed or higher, and when the clocked time exceeds the specified value, the motor 2 is returned to the rated rotating speed. The integrated time is further accumulated, and the durable limit (life) of the motor 2 is predicted from the accumulated time. When this accumulated time exceeds the specified value, a warning is sent out by a warning device 9. Since the rotating speed is increased to perform overload operation, the output of a water supply system can be selected in conformity with the normal water supply demand quantity even with a large demand quantity in a time zone where water supply load becomes the maximum. The small output of the motor 2 is thereby sufficient. Also, since the life of the motor 2 can be predicted, the situation can be coped with in advance, so that the sudden stop of the water supply system is not generated.

10. 发明专利

JPH0447196A AXIAL THRUST REDUCING STRUCTURE FOR MULTIPLE STAGE CENTRIFUGAL PUMP 失效
公开(公告)号：JPH0447196A
公开(公告)日：1992-02-17
申请号：JP15518490
申请日：1990-06-15
申请人： HITACHI LTD
发明人： NAKADA ERIKO , TANAKA TEIJI , TAKAHASHI SHINICHI , YOSHIDA MASAO , YANAGISAWA SEIJI
IPC分类号： F04D15/00 , F04D1/08 , F04D29/44
摘要： PURPOSE:To reduce leakage loss with hardly any change of axial thrust and reduce axial thrust efficiently at a low cost by communicating a space enclosed by a stage bush and an impeller boss with a casing ring outer diameter part on the back face side of an impeller. CONSTITUTION:A balance hole 3 for communicating the inside of an impeller 1 with a gap A is provided on the back face side of the impeller 1 enclosed by a casing 2. The casing 2 is provided with casing rings 4 fixed to a gap between the casing 2 and the front and back face sides of the impeller 1, and also with a stage bush 5 fixed to a gap between the casing 2 and an impeller boss. In this case, a small radial gap is provided between the stage bush 5 and a main plate 6 on the back face side of the impeller 1, and a wear ring 7 is provided to seal this small gap part. A communicating hole 9 for communicating a gap 8 with the casing ring outer diameter part is also opened. That is, the gap 8 enclosed by the impeller 1 and stage bush 5 is communicated with a gap between the impeller back face side and the casing 2 so as to reduce the differential pressure of the stage bush part 5 and leakage loss.

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