Recovery system using fluid coupling on power generating system
AssigneeEbara Corporation
InventorHiroshi Ogata
Life of this patent
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Abstract
A power generating system can recover exhaust heat from a working fluid of a fluid coupling and utilize the recovered exhaust heat to generate power. In the power generating system, water is supplied to a boiler by a feed pump to generate steam, a steam turbine is driven by using the generated steam to generate power, the steam discharged from the steam turbine is condensed in a condenser, and then the condensed water is resupplied to the boiler by the feed pump. The power generating system includes a fluid coupling provided between the feed pump and a motor to transmit a torque from the motor to the feed pump by a working fluid, and the condensed water supplied from the condenser is heated by the working fluid discharged from the fluid coupling.
Claims7
A power generating system in which water is supplied to a steam generator by a feed pump to generate steam, a steam turbine is driven by using the generated steam to generate power, the steam discharged from the steam turbine is condensed in a condenser to form condensed water, and then the condensed water is resupplied to the steam generator by the feed pump, the power generating system comprising:
- a fluid coupling provided between said feed pump and a driving machine for driving said feed pump to transmit a torque from said driving machine to said feed pump by a working oil which fills an impeller chamber of said fluid coupling;
- wherein the condensed water supplied from said condenser is heated by the working oil which is discharged from said fluid coupling;
- and
- wherein the condensed water heated by the working oil is supplied to said feed pump.
A power generating system in which water is supplied to a steam generator by a feed pump to generate steam, a steam turbine is driven by using the generated steam to generate power, a first part of the steam discharged from the steam turbine is condensed in a condenser to form condensed water, and then the condensed water is resupplied to the steam generator by the feed pump, the power generating system comprising:
- a fluid coupling provided between said feed pump and a driving machine for driving said feed pump to transmit a torque from said driving machine to said feed pump by a working fluid which fills an impeller chamber;
- and
- a heat pump cycle which comprises an evaporator, a compressor, a refrigerant condenser and an expansion valve;
- wherein the working fluid is discharged from said fluid coupling and is supplied to said evaporator to heat a refrigerant of said heat pump cycle, a second part of the steam discharged from said steam turbine is supplied to said refrigerant condenser, and the second part of the steam discharged from said steam turbine is heated by the refrigerant which has been heated by the working fluid discharged from said fluid coupling.
Dependencies are inferred from the claim text.