序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
161 Method for lubricating screw expanders and system for controlling lubrication EP09166581.0 2009-07-28 EP2161417A1 2010-03-10 Ast, Gabor; Bartlett, Michael Adam; Frey, Thomas Johannes; Kopecek, Herbert

A method for lubricating a screw expander (16) includes condensing a mixture of working fluid and lubricant fed from the screw expander (16), through a condenser (18). At least a portion of the mixture of working fluid and lubricant fed from the condenser (18) is pressurized from a first pressure to a second pressure through a pump (20). The method also includes separating the lubricant from the condensed working fluid of the at least portion of the mixture via a separator (22) and feeding the lubricant to the screw expander (16); or separating the lubricant from the working fluid of the at least portion of the mixture via an evaporator (14) and feeding the lubricant to the screw expander (16); or feeding the at least portion of the mixture of condensed working fluid and lubricant to the screw expander (16); or combinations thereof.

162 VERFAHREN UND VORRICHTUNG ZUR ERZEUGUNG MECHANISCHER ENERGIE EP06742365.7 2006-05-22 EP1915515A2 2008-04-30 Giechau, Lutz
The aim of the invention is to provide a method and device for producing mechanical energy by means of a rotating heat engine (1) which requires less thermal energy in order to guarantee a thermodynamic cycle and in order to perform usable mechanical work. This aim is substantially attained by using a first liquid working medium (6) and at least one additional liquid working medium (7). The at least one additional working medium (7) has a lower boiling point than the first. When it is combined with the first working medium (6) that is enriched with thermal energy, it changes to a gaseous state or expands and produces an excess pressure and performs work in such a manner that a torque is applied to the rotating element (3; 3.1-3.6) of the heat engine (1).
163 Process and apparatus for generating work EP05101039.5 2005-02-11 EP1691039A1 2006-08-16 Hoos, Frank

The invention pertains to an apparatus a process of generating work comprising the steps of expanding a gas, preferably substantially adiabatically and/or at the critical pressure and temperature of the gas, causing part of the gas to condensate and form a liquid phase, and separating, during or after expansion, at least part of the liquid phase from the gas phase. This process facilitates generating work at a relatively high efficiency.

164 ORC FOR TRANSFORMING WASTE HEAT FROM A HEAT SOURCE INTO MECHANICAL ENERGY AND COMPRESSOR INSTALLATION MAKING USE OF SUCH AN ORC EP16790511.6 2016-08-18 EP3347574A1 2018-07-18 ÖHMAN, Henrik
An Organic Rankine Cycle (ORC) device and method for transforming waste heat from a heat source containing compressed gas into mechanical energy. The ORC includes a closed circuit containing a two-phase working fluid, the circuit including a liquid pump for circulating the working fluid in the circuit consecutively through an evaporator which is in thermal contact with the heat source; through an expander like a turbine for transforming the thermal energy of the working fluid into mechanical energy; and through a condenser which is in thermal contact with a cooling element. The ORC determines the mechanical energy generated by the expander. A control device regulates the fraction of the working fluid entering the expander based on the determined mechanical energy such that the mechanical energy generated by the expander is maximum.
165 COGENERATION WITH NUCLEATE BOILING COOLED INTERNAL COMBUSTION ENGINE EP15829529 2015-08-04 EP3177815A4 2018-04-25 BENZ ROBERT P
A cogeneration system for generating electricity and process steam. The system includes an internal combustion engine having a shaft and a cooling system comprising a cooling fluid adapted to circulate through the engine and to cool the engine under conditions of nucleate boiling in which at least 10 percent of the coolant exits the engine in a vapor phase. It includes a vapor separator adapted to separate the coolant that exits the engine into a vapor phase coolant and a liquid phase coolant. The engine shaft drives an electric generator to provide electric power. A hot vapor line directs hot vapor exiting the vapor separator to a hot vapor process load. A coolant circulation pump is provided to force the cooling fluid through the engine, and a hot water line is provided to return hot water exiting the vapor separator to the coolant circulation pump. In preferred embodiments the system further includes an excess steam condenser for to collecting and condensing excess steam not needed by the hot vapor load, a condensate return tank adapted to store condensate from the hot vapor load and the excess steam condenser, and a condensate return line adapted to return condensate to the coolant recirculation pump.
166 HEAT ENGINES, SYSTEMS FOR PROVIDING PRESSURIZED REFRIGERANT, AND RELATED METHODS EP16727110.5 2016-05-25 EP3303779A1 2018-04-11 JOHNSON, Keith Sterling
A method for generating power from a heat source includes mixing a refrigerant in a liquid phase with a lubricating oil, heating the mixture to evaporate the refrigerant, mixing the heated mixture with additional refrigerant in a superheated phase, and atomizing the lubricating oil to disperse the lubricating oil within the refrigerant. The atomized lubricating oil and the refrigerant are passed through a decompressor to generate an electrical current. The refrigerant may be an organic material having a boiling point below about −35 C. Related systems and heat engines are also disclosed.
167 COMPRESSED AIR ENERGY STORAGE SYSTEM UTILIZING TWO-PHASE FLOW TO FACILITATE HEAT EXCHANGE EP12737132 2012-01-19 EP2665895A4 2018-04-11 STAHLKOPF KARL E; FONG DANIELLE A; CRANE STEPHEN E; BERLIN EDWIN P JR; POURMOUSA ABKENAR AMIRHOSSEIN
A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a control system, one or more heat exchangers, and, in certain embodiments of the invention, a motor-generator. The reversible air compressor-expander uses mechanical power to compress air (when it is acting as a compressor) and converts the energy stored in compressed air to mechanical power (when it is acting as an expander). In certain embodiments, the compressor-expander comprises one or more stages, each stage consisting of pressure vessel (the "pressure cell") partially filled with water or other liquid. In some embodiments, the pressure vessel communicates with one or more cylinder devices to exchange air and liquid with the cylinder chamber(s) thereof. Suitable valving allows air to enter and leave the pressure cell and cylinder device, if present, under electronic control.
168 COGENERATION WITH NUCLEATE BOILING COOLED INTERNAL COMBUSTION ENGINE EP15829529.5 2015-08-04 EP3177815A1 2017-06-14 Benz, Robert, P.
A cogeneration system for generating electricity and process steam. The system includes an internal combustion engine having a shaft and a cooling system comprising a cooling fluid adapted to circulate through the engine and to cool the engine under conditions of nucleate boiling in which at least 10 percent of the coolant exits the engine in a vapor phase. It includes a vapor separator adapted to separate the coolant that exits the engine into a vapor phase coolant and a liquid phase coolant. The engine shaft drives an electric generator to provide electric power. A hot vapor line directs hot vapor exiting the vapor separator to a hot vapor process load. A coolant circulation pump is provided to force the cooling fluid through the engine, and a hot water line is provided to return hot water exiting the vapor separator to the coolant circulation pump. In preferred embodiments the system further includes an excess steam condenser for to collecting and condensing excess steam not needed by the hot vapor load, a condensate return tank adapted to store condensate from the hot vapor load and the excess steam condenser, and a condensate return line adapted to return condensate to the coolant recirculation pump.
169 CONTROLLING TURBOPUMP THRUST IN A HEAT ENGINE SYSTEM EP14775493 2014-03-12 EP2971622A4 2016-12-21 GAYAWAL SUYASH; VERMEERSCH MICHAEL LOUIS
A heat engine system and a method are provided for generating energy by transforming thermal energy into mechanical and/or electrical energy, and for controlling a thrust load applied to a turbopump of the heat engine system. The generation of energy may be optimized by controlling a thrust or net thrust load applied to a turbopump of the heat engine system. The heat engine system may include one or more valves, such as a turbopump throttle valve and/or a bearing drain valve, which may be modulated to control the thrust load applied to the turbopump during one or more modes of operating the heat engine system.
170 HEAT RECOVERY AND UPGRADING METHOD AND COMPRESSOR FOR USING IN SAID METHOD EP14739975.2 2014-07-01 EP3033498A1 2016-06-22 VAN BEVEREN, Petrus Carolus
Method for coupling a first heat-requiring industrial process to a second cold-requiring industrial process, whereby a first circuit for energy recovery (1) from the first industrial process transfers heat to a second circuit for cold production (2) for the second industrial process, wherein the first circuit for energy recovery (1) the energy carrier is a binary mixture of water and ammonia that has two-phases and is compressed by a compressor (7) specifically suitable for compressing a two-phase fluid such as a compressor with a Lysholm rotor or equipped with vanes, whereby all or part of the liquid phase evaporates as a result of compression such that overheating does not occur and such that less working energy must be supplied.
171 CONTROLLING TURBOPUMP THRUST IN A HEAT ENGINE SYSTEM EP14775493.1 2014-03-12 EP2971622A1 2016-01-20 GAYAWAL, Suyash; VERMEERSCH, Michael, Louis
A heat engine system and a method are provided for generating energy by transforming thermal energy into mechanical and/or electrical energy, and for controlling a thrust load applied to a turbopump of the heat engine system. The generation of energy may be optimized by controlling a thrust or net thrust load applied to a turbopump of the heat engine system. The heat engine system may include one or more valves, such as a turbopump throttle valve and/or a bearing drain valve, which may be modulated to control the thrust load applied to the turbopump during one or more modes of operating the heat engine system.
172 Stabilized hfo and hcfo compositions for use in high temperature heat transfer applications EP14158690.9 2014-03-10 EP2778207A2 2014-09-17 Zyhowski, Gary J.; Thomas, Raymond H.; Cohen, Alan P.

The present invention relates, in part, to HFO and/or HCFO based working compositions exhibiting chemical and thermal stability in high temperature heat transfer systems. In certain aspects, the HFO and/or HCFO compounds may be represented by formula I wherein R1, R2 R3, and R4 are each independently selected from the group consisting of H, F, Cl, Br, C1-C6 alkyl, C1-C6 fluoroalkyl, at least C6 aryl (preferably C6-C15 aryl), C6-C15 fluoroaryl, at least C3 cycloalkyl (preferably C6-C12 cycloalkyl), C6-C12 fluorocycloalkyl, C6-C15 alkylaryl, and C6-C15 fluoroalkylaryl, wherein the compound contains at least one F atom. Such working fluids are provided with at least one stabilizer to minimize HFO and/or HCFO degradation.

173 DISPOSITIF DE CONVERSION D'ÉNERGIE THERMIQUE EN ÉNERGIE MÉCANIQUE EP11817479.6 2011-12-30 EP2659098A2 2013-11-06 CHAIX Jean-Edmond
The invention relates to a device for converting heat energy into mechanical energy. A first fluid takes a first path between a first inlet and outlet of a steam generator. The heat-transfer fluid takes a second path between a second inlet and outlet of the steam generator. The first path is thermally coupled to the second path so as to form the steam from the first fluid. The first fluid, in the form of steam, takes a first path between a first inlet and outlet of an expansion chamber. The heat-transfer fluid takes a second path between a second inlet and outlet of the chamber. The chamber is formed so as to carry out the isothermal expansion of the first fluid using a fractionated expansion via a plurality of basic isothermal expansions, the first fluid being heated between each expansion. The first fluid is mixed, in the form of steam, with the heat-transfer fluid so as to obtain a dual-phase mixture in a mixing device.
174 VORRICHTUNG ZUR ENERGIEUMWANDLUNG, KRAFT-WÄRME-KOPPLUNG MIT EINER DERARTIGEN VORRICHTUNG UND VERFAHREN ZUM BETREIBEN EINER ORC-ANLAGE EP08801824.7 2008-09-03 EP2201222A2 2010-06-30 PIACENTINI-TIMM, Aldo; NIESNER, René; DRESCHER, Ulli; VOSSBERG, Thomas; KREMP, Manfred
The invention relates to a device for converting energy by an ORC process, comprising a working medium circuit (11) having an organic working medium, said circuit having a power-generating machine (12), particularly a screw-type motor. The device is characterized in that the power-generating machine (12) is coupled to a lubricant circuit (13) comprising a lubricant such that the lubricant, together with the working medium, is fed into a working chamber of the power-generating machine (12), wherein the lubricant circuit (13) comprises a device for transmitting thermal energy (14), said device being connected upstream of the power-generating machine (12) and adapted such that the lubricant can be heated and fed to the power-generating machine (12).
175 AN IMPROVED COMBINED HEAT POWER SYSTEM EP08786008.6 2008-07-09 EP2181249A2 2010-05-05 VAN DEN BOSSCHE, Alex; MEERSMAN, Bart
A combined heat power system comprises a Rankine cycle, optionally an organic Rankine cycle, using a fluid both in gaseous phase and liquid phase. The Rankine cycle comprises - an evaporator for evaporating the fluid from liquid phase to gaseous phase, - an expander for expanding the fluid in gaseous phase provided by the evaporator. The expander is suitable to transform energy from the expansion of the fluid in gaseous phase into mechanical energy, - a condenser for condensing the fluid from gaseous phase from the expander to liquid phase and - a liquid pump for pumping the fluid in liquid phase provided by the condenser to the evaporator. The system comprises a heat source providing exhaust gas. The exhaust gas provides thermal energy for evaporating the fluid from liquid phase to gaseous phase by the evaporator. The system further comprises a generator unit for converting mechanical energy from expander to electrical energy. The expander is a volumetric expander.
176 An improved combined heat power system EP07013365.7 2007-07-09 EP2014880A1 2009-01-14 Van den Bossche, Alex

A combined heat power system (110) comprises a Rankine cycle, optionally an organic Rankine cycle, using a fluid both in gaseous phase and liquid phase. The Rankine cycle comprises

- an evaporator (4) for evaporating the fluid from liquid phase to gaseous phase,

- an expander (5a) for expanding the fluid in gaseous phase provided by the evaporator (4). The expander (5a) is suitable to transform energy from the expansion of the fluid in gaseous phase into mechanical energy,

- a condenser (6a,6b,6c) for condensing the fluid from gaseous phase from the expander (5a) to liquid phase and

- a liquid pump (5c) for pumping the fluid in liquid phase provided by the condenser (6a,6b,6c) to the evaporator (4).

The system (110) comprises a heat source (3) providing exhaust gas. The exhaust gas provides thermal energy for evaporating the fluid from liquid phase to gaseous phase by the evaporator (4). The system (110) further comprises a generator unit (5b) for converting mechanical energy from expander (5a) to electrical energy. The expander (5a) is a volumetric expander.

177 Deriving mechanical power by expanding a liquid to its vapour EP96309518.7 1996-12-27 EP0787891B1 2003-05-28 Smith, Ian Kenneth; Stosic, Nikola Rudi
178 HYBRID TWO-PHASE TURBINE EP95910885 1995-01-25 EP0805909A4 2000-10-25 HAYS LANCE G
In a rotary turbine having inlets for mixtures of gas and liquid, and a rotary shaft, the combination comprising a separator to receive the mixture of gas and liquid, and to separate the mixture into a stream of gas and a stream of liquid; first structure to receive the stream of gas for generating torque exerted on the shaft; the separator including a rotating surface to receive the stream of liquid to form a liquid layer, and for generating torque exerted on the shaft; there being generally radial outflow passages for the separated liquid stream, and liquid nozzles terminating liquid outflow passages to pass the liquid stream and to convert the induced pressures of the radial outflow of the liquid to velocity of liquid jets, and to convert the reaction forces of the liquid jets to shaft power. Gas nozzles may be provided to receive the separated gas stream which is centrifugally pressurized and expanded through the gas nozzles to produce gas jets directed to produce torque acting on the shaft.
179 열 에너지를 기계적 에너지로 변환하기 위한 장치 KR1020137020264 2011-12-30 KR101895563B1 2018-09-07 셰장-에드몽
열전달유체와고온가스에의해형성된제트로부터의운동에너지의변환기 (8) 로서, - 열전달유체 (2) 와고온가스 (4) 의적어도하나의공급원으로부터상기제트의적어도하나의인젝터 (20),- 상기인젝터 (20) 에실질적으로직각으로축선 (B) 을따라연장되는샤프트 (44) 에고정되는회전장착된임펄스휠 (42) 로서, 상기임펄스휠 (42) 은복수의비대칭블레이드들 (46) 을포함하고, 상기제트는상기샤프트 (44) 를회전구동시키고상기제트의축선방향운동에너지를상기샤프트 (44) 의회전운동에너지로변형하도록상기블레이드들 (46) 로분사되는, 상기임펄스휠 (42),- 상기임펄스휠 (42) 을둘러싸는탱크 (36) 로서, 상기탱크 (36) 는상기임펄스휠 (42) 의실질적으로축선 (B) 을따라연장되는, 상기탱크 (36),- 상기블레이드들 (46) 아래로연장되는적어도하나의디플렉터 (56) 를포함하고,상기디플렉터 (56) 는상기임펄스휠 (42) 의출구에서열 전달유체와고온가스의혼합물을회수하고상기탱크 (36) 의벽 (40) 에실질적으로접선방향으로상기혼합물을재지향시키도록배열된형상을나타내고, 상기탱크 (36) 의상기벽 (40) 은상기열 전달유체를상기고온가스와분리하기위해서상기혼합물에사이클론효과를부여하도록배열되고, 상기탱크는상기열 전달유체와상기고온가스를회수하기위한요소들 (66, 68) 을포함한다.
180 전기 에너지 생성 방법 및 작업 물질의 사용 KR1020117026330 2010-04-15 KR101764268B1 2017-08-04 보첵에바; 펜츠미햐엘; 힘믈러클라우스; 조랄프; 렝어트외르크
본발명은하나이상의저온열원(2)에의한전기에너지생성방법에관한것이며, VPT 순환공정(1, 10, 100)이실행된다. VPT 순환공정의효율을상승시키기위해, 특정작업물질의사용이제시된다.
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