公开(公告)号：US20190211713A1

公开(公告)日：2019-07-11

申请号：US16099386

申请日：2017-04-18

Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

Inventor： Kazuo TAKAHASHI ,  Shigeto ADACHI ,  Yutaka NARUKAWA ,  Kazumasa NISHIMURA

IPC: F01K19/10 ,  F01K23/10 ,  F02B61/04 ,  F01K19/04 ,  F01K23/18

CPC classification number: F01K19/10 ,  F01D21/14 ,  F01D25/00 ,  F01K9/00 ,  F01K9/04 ,  F01K19/04 ,  F01K23/02 ,  F01K23/101 ,  F01K23/18 ,  F02B61/04 ,  F02G5/00 ,  Y02P80/152 ,  Y02T10/166

Abstract: The exhaust heat recovery system (1) comprises: an evaporator (2); an expander (3); a condenser (5); a circulation pump (7); a circulation flow path (6) for circulating a working medium therethrough; cooling medium piping (8) which is connected to the circulation flow path (6) and causes a portion of the working medium sent out from the circulation pump (7) to be diverted to flow into the condenser (5); a cooling-side opening/closing valve (13) for switching between a state in which the working medium can flow into the cooling medium piping (8) and a state in which the working medium cannot flow thereinto; and a control unit (10) for performing the switching control of the cooling-side opening/closing valve (13). When a condition under which the temperature of the working medium flowing into the condenser (5) becomes higher than or equal to a predetermined temperature is satisfied, the control unit (10) controls the cooling-side opening/closing valve (13) to switch to the state in which the working medium can flow into the cooling medium piping (8).

公开(公告)号：US20190154320A1

公开(公告)日：2019-05-23

申请号：US16076056

申请日：2016-04-21

Applicant: Mitsubishi Electric Corporation

Inventor： Shingo TANINAKA ,  Shigeo TAKATA ,  Naofumi TAKENAKA

IPC: F25B47/02 ,  F25B7/00 ,  F25B41/06

CPC classification number: F25B47/022 ,  F25B6/04 ,  F25B7/00 ,  F25B13/00 ,  F25B41/062 ,  F25B47/025 ,  F25B49/02 ,  F25B2313/009 ,  F25B2313/02732 ,  F25B2313/0314 ,  F25B2313/0315 ,  F25B2500/19 ,  F25B2600/2513 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/21151 ,  F25B2700/21152 ,  Y02P80/152

Abstract: An exhaust heat recovery type of air-conditioning apparatus includes: an air-conditioning-side refrigerant circuit including a first flow switching device, a second flow switching device, and an exhaust-heat recovery heat exchanger connected in parallel to an outdoor heat exchanger and an indoor heat exchanger; and a refrigeration-side refrigerant circuit. The first flow switching device causes the outdoor heat exchanger to communicate with one of a discharge side and a suction side of a first compressor through a pipe. The second flow switching device causes the indoor heat exchanger to communicate with one of the discharge and suction sides of the first compressor through a pipe. The exhaust-heat recovery heat exchanger is connected to the suction side of the first compressor through a pipe, and causes heat exchange between refrigerants. Because of the above configuration, the exhaust heat recovery type of air-conditioning apparatus can use exhaust heat in any of operation modes.

公开(公告)号：US10001124B2

公开(公告)日：2018-06-19

申请号：US15237990

申请日：2016-08-16

Applicant: Hitachi Industrial Equipment Systems Co., Ltd.

Inventor： Masahiko Takano ,  Hideharu Tanaka

IPC: F04C29/04 ,  F25B31/00 ,  F25B43/02 ,  F04C18/16

CPC classification number: F04C29/04 ,  F04C18/16 ,  F04C2240/81 ,  F04C2270/195 ,  F05B2260/20 ,  F25B31/004 ,  F25B43/02 ,  Y02P80/152

Abstract: An oil-cooled gas compressor provided with a compressor body, an oil separator that separates out oil from a compressed gas, a gas pipe for sending the compressed gas, from which oil has been separated out by the oil separator, to a user, and an oil pipe for returning, to the compressor, the oil separated out by the oil separator. An air-cooled heat exchanger for cooling the aforementioned oil, a controllable-speed cooling fan for blowing cooling air at said air-cooled heat exchanger, and a waste-heat-recovery heat exchanger, provided upstream of the air-cooled heat exchanger, for recovering heat from the oil flowing through the abovementioned oil pipe, are also provided. The speed of the cooling fan is controlled so as to bring the temperature of the compressed gas discharged from the compressor body to within a prescribed range. It is possible both to recover waste heat from the oil heated by being used to cool the compressor and to suppress compressor temperature fluctuations, even if the load on the waste-heat-recovery equipment varies.

公开(公告)号：US09851404B2

公开(公告)日：2017-12-26

申请号：US14423903

申请日：2013-08-20

Applicant: Siemens Aktiengesellschaft

Inventor： Dirk Hertz ,  Marco Schönenberg ,  Helene Steuer ,  Stefan Zitzler

IPC: G01R31/327 ,  H02H3/34 ,  H02P25/04 ,  G01R29/16 ,  H02H7/09 ,  H02H3/32 ,  H02B1/20 ,  H02P25/16 ,  H02J3/26 ,  G01R31/42

CPC classification number: G01R31/3277 ,  G01R29/16 ,  G01R31/42 ,  H02B1/20 ,  H02H3/32 ,  H02H3/34 ,  H02H3/343 ,  H02H7/09 ,  H02J3/26 ,  H02P25/04 ,  H02P25/16 ,  Y02E40/50 ,  Y02P80/14 ,  Y02P80/152

Abstract: An embodiment relates to a switchgear for a single-phase motor and a three-phase motor, the switchgear including a processing unit and a first, second and third current path, the first and third current path each including a current transformer. The processing unit is adapted to detect the current I1 of the first current path and the current I3 of the third current path. To provide a cost-effective switchgear for a one-phase motor and a three-phase motor which is adapted to identify the failure of every single phase in the three-phase operation and a phase failure in the one-phase operation, the processing unit is designed such as to detect the currents I1, I3 of the first and third current path and to determine, based on the phase shift between the detected currents I1, I3 of the first and third current path in which operating mode the switchgear is operated.

公开(公告)号：US09803853B2

公开(公告)日：2017-10-31

申请号：US13989680

申请日：2011-03-04

Applicant: Hiroshi Nakashoji ,  Tatsuto Nagayasu

Inventor： Hiroshi Nakashoji ,  Tatsuto Nagayasu

IPC: F22B37/02 ,  F01K3/00 ,  F01K13/02 ,  F23J15/08 ,  F23J15/06

CPC classification number: F22B37/02 ,  F01K3/004 ,  F01K13/02 ,  F23J15/06 ,  F23J15/08 ,  F23J2215/20 ,  Y02E20/12 ,  Y02E20/14 ,  Y02E20/363 ,  Y02P80/152

Abstract: This invention provides a heat recovery and utilization system for efficiently utilizing heat recovered from boiler exhaust gas with a heat recovery unit without any complicated equipment or high operation costs. The heat recovery and utilization system includes: a boiler for electricity generation; a heat recovery unit for recovering heat from exhaust gas of the boiler; a heat exchanger for using heat recovered with the heat recovery unit as heat source for equipment other than for electricity generation; a heat accumulator for accumulating heat source for the equipment other than for electricity generation; and a heat medium circulation line in which heat medium circulates between the heat recovery unit and the heat exchanger to exchange the heat recovered with the heat recovery unit with the heat exchanger. Upon startup of the system, the heat exchanger preheats the heat recovery unit with heat source accumulated in the heat accumulator.

公开(公告)号：US09746191B2

公开(公告)日：2017-08-29

申请号：US14893287

申请日：2014-05-20

Applicant: POSCO ENERGY CO., LTD.

Inventor： Min Cheol Kang ,  Hyo Seok Lee ,  Jong Kook Seong

IPC: F24D3/18 ,  F01K13/00 ,  F25B30/04 ,  F25B27/02 ,  F01K13/02 ,  F01K23/10 ,  F24D19/10 ,  F01K17/00 ,  F01K23/00 ,  F25B15/06

CPC classification number: F24D3/18 ,  F01K13/00 ,  F01K13/02 ,  F01K17/005 ,  F01K23/00 ,  F01K23/101 ,  F24D19/1006 ,  F24D2200/126 ,  F24D2200/16 ,  F24H2240/127 ,  F25B15/06 ,  F25B27/02 ,  F25B30/04 ,  F25B2700/21172 ,  F25B2700/21173 ,  Y02A30/274 ,  Y02B10/70 ,  Y02B30/52 ,  Y02E20/14 ,  Y02E20/16 ,  Y02P80/152 ,  Y02P80/156

Abstract: A system for producing a heat source for heating or electricity, using medium/low-temperature waste heat includes: an absorption-type heat pump (100) supplied with a driving heat source and heat source water to heat a low-temperature heat medium; a regenerator heat exchange unit (210) for supplying a regenerator (110) with a driving heat source using waste heat; an evaporator heat exchange unit (220) for supplying an evaporator with heat source water; a heat medium circulation line (310) for circulating a heat medium; a generation unit (400) branching off from the heat medium circulation line (310) and producing electricity; a heat production unit (500) branching off from the heat medium circulation line (310) and supplying a heat-demanding place with a heat source for heating; and a switching valve unit (600) for controlling the flow of heat medium supplied the generation unit (400) or the heat production unit (500).

公开(公告)号：US09689591B2

公开(公告)日：2017-06-27

申请号：US14398470

申请日：2012-08-17

Applicant: Huayu Li

Inventor： Huayu Li

IPC: F25B15/06 ,  F25B15/02 ,  F25B15/00 ,  F25B30/04 ,  F25B27/02

CPC classification number: F25B15/006 ,  F25B15/008 ,  Y02A30/277 ,  Y02B30/62 ,  Y02P80/152

Abstract: The invention provides the sectional regenerative third-type absorption heat pump which belongs to low-temperature waste heat utilization and refrigeration technique filed. It mainly comprises four generators, four absorbers, a condenser, an evaporator, a throttle, four solution pumps and four solution heat exchangers. The refrigerant vapor of the first generator is provided for condenser. The refrigerant liquid of condenser is provided for evaporator. The refrigerant vapor of evaporator is provided for the first absorber. The second generator and the second absorber, the third generator and the third absorber respectively form the driving heat sectional regenerative process. The third generator and the third absorber form the waste heat regenerative process. The first absorber, the second absorber and the third absorber supply heat to the condenser. The fourth absorber releases the low temperature heat. The sectional regenerative third-type absorption heat pump is thereby formed.

公开(公告)号：US20170160013A1

公开(公告)日：2017-06-08

申请号：US15038838

申请日：2014-11-12

Applicant: CAS SUPER ENERGY TECHNOLOGY JINGJIANG LTD.

Inventor： Xinyu ZHANG ,  Fengjiao ZHANG ,  Wei WU ,  Qian ZHAO

IPC: F27D17/00 ,  B01D53/86

CPC classification number: F27D17/002 ,  B01D53/8609 ,  B01D53/8625 ,  B01D53/869 ,  B01D2251/102 ,  B01D2255/1023 ,  B01D2255/2073 ,  B01D2255/20738 ,  F23J15/006 ,  F23J15/02 ,  F23J2215/10 ,  F23J2215/20 ,  F23J2219/40 ,  F27D17/004 ,  F27D17/008 ,  Y02P80/152

Abstract: The present invention relates to a denitration and waste heat recovery integrated furnace, comprising a denitration system, a desulfurization system and a waste heat recovery system. An air outlet of the denitration system is connected to an inlet of a dust collector (4), an outlet of the dust collector (4) is connected to an air inlet of the desulfurization system, an air outlet of the desulfurization system is connected to an air compressor (6) of the waste heat recovery system, and the waste heat recovered by the air compressor (6) is used for heat energy utilization of other departments.

公开(公告)号：US20160370122A1

公开(公告)日：2016-12-22

申请号：US14902095

申请日：2014-02-28

Applicant: TSINGHUA UNIVERSITY

Inventor： Lin Fu ,  Yi Jiang ,  Yanfing Wu ,  Jian Sun ,  Shigang Zhang ,  Xiling Zhao ,  Chenglei Xiao ,  Weiwei Yang ,  Daoke Tang ,  Xin Qi

IPC: F28D20/00 ,  F28D17/04 ,  F25B30/06 ,  F28D15/00

CPC classification number: F28D20/0034 ,  F24D3/18 ,  F24D11/0235 ,  F24D19/1015 ,  F24D19/1039 ,  F24D2200/08 ,  F24D2200/12 ,  F24D2200/16 ,  F24D2200/18 ,  F24D2200/26 ,  F25B30/06 ,  F28D15/00 ,  F28D17/04 ,  F28D2020/0078 ,  F28D2020/0082 ,  H02J3/14 ,  Y02B10/70 ,  Y02B30/125 ,  Y02B30/52 ,  Y02E20/14 ,  Y02P80/15 ,  Y02P80/152

Abstract: The invention relates to an electric peaking combined heat and power (CHP) waste heat recovery device and an operating method thereof. The device comprises an inner power plant portion and a heat exchange station portion, wherein the inner power plant portion comprises a heat exchanger, a waste heat recovery electric heat pump, an energy-storing electric heat pump, high/low temperature water storing tanks, a heating network heater, a valve and a circulating water pump; the heat exchange station portion mainly comprises high/low temperature water storing tanks, an electric heat pump, a heat exchanger, a valve and a circulating water pump; as for the operating method of the device, the device can operate in periods of an electrical load trough, an electrical load flat and an electrical load peak respectively through combination of different valve switches, the high temperature water storing tank is used for balancing the difference between system heat supply amount and heating load, the low temperature water storing tank is used for stabilizing steam exhaust waste heat recovery amount, thereby, the problem that the electricity generation peaking capacity is limited due to mutual coupling of electricity generation and heat supply in traditional operating modes of ‘heat determines electricity’ is solved, a CHP unit can participate in power grid load regulation, the power grid regulating capacity can be improved so as to deal with the condition of constantly increasing of electrical load trough-to-peak difference, and the absorptive capacity of a power grid for wind power generation can be improved so as to reduce phenomena of ‘fan suspending’.

Abstract translation: 本发明涉及电峰值组合热功率（CHP）余热回收装置及其操作方法。 该装置包括内部发电厂部分和热交换站部分，其中内部发电厂部分包括热交换器，废热回收电热泵，储能电热泵，高/低温储水箱， 加热网络加热器，阀门和循环水泵; 热交换站部分主要包括高/低温储水箱，电热泵，热交换器，阀门和循环水泵; 对于装置的操作方法，该装置可以分别通过组合不同的阀开关在电负载槽，电负载平面和电负载峰值的时段内工作，高温储水箱用于平衡差 在系统供热量和加热负荷之间，低温储水罐用于稳定排气余热回收量，因此传统发电和供热相互耦合的发电峰值容量有限的问题 解决了“热电确定”的运行模式，CHP单元可以参与电网负荷调节，可以提高电网调压能力，以应对不断增加的电负荷谷 - 谷差异， 可以提高用于风力发电的电网的吸收能力，以减少电力 “风扇暂停”的错误。

公开(公告)号：US20160281604A1

公开(公告)日：2016-09-29

申请号：US14671147

申请日：2015-03-27

Applicant: General Electric Company

Inventor： Sebastian Walter Freund

IPC: F02C7/143 ,  F25B9/06 ,  F02C7/16 ,  F25B9/00

CPC classification number: F02C7/143 ,  F01K23/103 ,  F02C7/16 ,  F25B9/008 ,  F25B9/06 ,  Y02E20/16 ,  Y02P80/152

Abstract: An integrated heat recovery and cooling cycle system for use with a gas turbine engine, including a heat-to-power portion and an inlet cooling portion. The heat-to-power portion including a two-stage intercooled pump/compressor, a low-temperature heat source configured to receive a first portion of a flow of working fluid, one or more recuperators configured in parallel with the intercooler to receive a second portion of the flow of working fluid. The inlet cooling cycle including a chiller expander, a chiller compressor coupled to the chiller expander, a motor coupled to the chiller compressor and an inlet air heat exchanger in fluid communication with the chiller expander and the chiller compressor. The inlet cooling portion configured to receive a portion of the flow of working fluid. The system further including a working fluid condenser and an accumulator in fluid communication with the heat-to-power portion and the inlet cooling portion.

Abstract translation: 一种与燃气涡轮发动机一起使用的集成热回收和冷却循环系统，包括热功率部分和入口冷却部分。 热功率部分包括两级中间冷却泵/压缩机，构造成接收工作流体流的第一部分的低温热源，与中间冷却器并联构造的一个或多个回热器，以接收第二 部分工作流体流动。 入口冷却循环包括冷却器膨胀器，联接到冷却器膨胀器的冷却器压缩机，耦合到冷却器压缩机的电动机和与冷却器膨胀器和冷却器压缩机流体连通的入口空气热交换器。 入口冷却部分构造成接收工作流体流的一部分。 该系统还包括工作流体冷凝器和与热功率部分和入口冷却部分流体连通的蓄能器。