摘要:
The cooling of a hot fluid is effected using a heat exchanger (11) adapted to receive the hot fluid and liquid coolant for cooling the hot fluid such that the liquid coolant is vaporized. A turbine (12), having an output shaft (19) connected to a fan (18), is responsive to vaporized coolant which expands in the turbine (12) for driving the fan (18) to move a mass of air, and produce vaporized coolant. A condenser (13) receives the expanded vaporized coolant and is responsive to air blown by the fan (18), for condensing the expanded vaporized coolant thereby cooling the same and producing coolant condensate which is then returned to the heat exchanger (11).
摘要:
The present invention provides a power and regasification system based on liquefied natural gas (LNG), comprising a vaporizer by which liquid motive fluid is vaporized, said liquid motive fluid being LNG or a motive fluid liquefied by means of LNG; a turbine for expanding the vaporized motive fluid and producing power; heat exchanger means to which expanded motive fluid vapor is supplied, said heat exchanger means also being supplied with LNG for receiving heat from said expanded fluid vapor, whereby the temperature of the LNG increases as it flows through the heat exchanger means; a conduit through which said motive fluid is circulated from at least the inlet of said vaporizer to the outlet of said heat exchanger means; and a line for transmitting regasified LNG.
摘要:
A method and apparatus for producing power comprising a grate cooler for cooling clinker supplied from cement production apparatus, an electrostatic precipitator that extracts particulate matter from hot air supplied from said grate cooler, the grate cooler and electrostatic precipitator working in combination with an air-heat transfer heat-exchanger, a pre-heater, a vaporizer, a turbine, and a working fluid condenser, to produce power.
摘要:
A geothermal power plant operating on high pressure geothermal fluid includes a primary separator for separating the geothermal fluid into two channels, one containing high pressure steam and the other containing high pressure liquid. A primary steam turbine in the high pressure steam channel is responsive to high pressure steam for generating electricity and producing heat depleted high pressure steam. A secondary separator separates the heat depleted high pressure steam into a steam component and a liquid component. A primary heat exchanger is responsive to the high pressure liquid and the steam component for transferring heat to said steam component thereby producing low pressure steam and cooled high pressure liquid. At least one power plant module includes a low pressure steam turbine responsive to the low pressure steam for producing electricity and heat depleted low pressure steam; a condenser/vaporizer containing an organic fluid for receiving the heat depleted low pressure steam and converting it into condensate, and for vaporizing the organic fluid; an organic vapor turbine responsive to vaporized organic fluid produced by the condenser/vaporizer for generating electricity and for producing heat depleted organic fluid; a condenser for condensing the heat depleted organic vapor into a liquid; a preheater for heating the liquid; a pump for returning heated liquid from the preheater to the condenser/vaporizer; and a conduit for directing condensate from the condenser to the preheater.
摘要:
Power is produced from geothermal fluid containing non-condensable gases whose main constituent is carbon-dioxide. The geothermal fluid is separated into steam and geothermal liquid, the steam being applied to a steam turbine which produces power. The steam exiting the turbine indirectly condensed by an organic fluid liquid which is vaporized and used to run at least one organic vapor turbine for producing power. Organic vapor exiting the organic vapor turbine is condensed and preheated by the steam condensate. Heat extracted from the geothermal liquid is used to run another organic vapor turbine producing power and cooled geothermal liquid which is combined with the cooled steam condensate to form a mixture to which the non-condensable gases are added to form an effluent that is injected into a re-injection well. Carbon dioxide in the non-condensable gases substantially dissolves in the geothermal liquid cooled by the cooled steam condensate reducing the pH of the effluent and thus reducing mineral scale precipitation.
摘要:
A method for using a two-phase fluid includes separating the fluid into its two phases, one of which is a hot gas containing energy in the form of latent heat, and one of which is a hot liquid containing energy in the form of sensible heat; converting sensible heat in the liquid to sensible heat in a working fluid for producing preheated working fluid; and transferring latent heat in the gas to the preheated working fluid for vaporizing the same at substantially constant temperature and pressure.
摘要:
A power plant operating on steam for producing electric power including a plurality of integrated power plant unit modules each having a steam turbine responsive to the steam and producing heat depleted steam, a steam condenser associated with the steam turbine operating at a pressure no less than atmospheric pressure for collecting non-condensable gases and condensing the heat depleted steam and vaporizing organic fluid applied to the condenser, a closed organic Rankine cycle turbine operating on the organic fluid and a single electric generator driven by the steam turbine and the organic Rankine cycle turbine for producing electric power, and also including means for supplying in parallel the steam to each steam turbine in each of the modules. A method for producing electric power using steam is also described.
摘要:
The present invention provides a power and regasification system based on liquefied natural gas (LNG), comprising a vaporizer by which liquid working fluid is vaporized, said liquid working fluid being LNG or a working fluid liquefied by means of LNG; a turbine for expanding the vaporized working fluid and producing power; heat exchanger means to which expanded working fluid vapor is supplied, said heat exchanger means also being supplied with LNG for receiving heat from said expanded fluid vapor, whereby the temperature of the LNG increases as it flows through the heat exchanger means; a conduit through which said working fluid is circulated from at least the inlet of said vaporizer to the outlet of said heat exchanger means; and a line for transmitting regasified LNG.
摘要:
A heat recovery method and system that extracts heat from the exhaust of a gas turbine unit in a waste heat, heat exchanger and transfers the heat to an intermediate fluid, which can be pressurized water. The intermediate fluid in-turn transfers the heat to an organic working fluid resulting in the vaporization thereof. The vaporized organic working fluid drives a series of turbines which in turn drive a generator that generates electricity.
摘要:
Apparatus for producing from a source of geothermal fluid that contains a mixture of high pressure steam, brine and noncondensable gases includes a heat exchanger for receiving geothermal fluid and transferring heat to water thereby vaporizing the same to produce steam. At least one power plant module is involved, the module having a steam turbine responsive to steam produced by the heat exchanger for producing work, a steam condenser containing an organic fluid and responsive to low pressure steam that exits the steam turbine for condensing the steam into a liquid and vaporizing the organic fluid. The module also contains an organic vapor turbine responsive to vaporizer organic fluid for producing work, and an organic vapor condenser responsive to the low pressure organic fluid that exits the organic vapor turbine condensing the organic vapor to a liquid that is returned to the steam condenser. The cooled geothermal fluid leaving the primary heat exchanger is conducted to a rejection well. Furthermore, an additional heat exchanger also can be provided, there being a first connection associated with both heat exchangers for selectively inserting the additional heat exchanger between the heat exchanger that receives the geothermal fluid and the injection well whereby the operation of the connection means may be coordinated with the operation of the power plant module.