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System and method for use in a combined cycle or rankine cycle power plant using an air-cooled steam condenser

A technology for power equipment and condensers, applied in steam/steam condensers, mechanical equipment, steam engine devices, etc., can solve problems such as performance loss of power equipment

Inactive Publication Date: 2010-02-03
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Air-cooled condensers have cooling limitations and cause performance loss to power equipment

Method used

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  • System and method for use in a combined cycle or rankine cycle power plant using an air-cooled steam condenser
  • System and method for use in a combined cycle or rankine cycle power plant using an air-cooled steam condenser

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Embodiment Construction

[0013] refer to figure 1 and 2 , provides a system 1 for a power plant, such as a combined cycle or Rankine cycle power plant. This power plant includes a steam source, such as a gas turbine 2, which generates heat 50 during operation, a heat recovery steam generator (HRSG) 3, coupled to the gas turbine 2, a cooling tower 110, a steam turbine 5, such as a high pressure steam turbine (HPST )60, intermediate pressure steam turbine (IPST)70 and low pressure steam turbine (LPST)80. The HRSG 3 generates steam by the heat generated by the gas turbine 2 and includes heat exchangers such as high-temperature heaters, evaporators, and preheaters, which are arranged in the HRSG along the axis, through which part of the generated steam is diverted to the HPST 60, IPST70 and LPST80. Via the diverted steam, the HPST60, IPST70 and LPST80 generate energy, such as electricity, and output a used steam supply. Operation of the system 1 involves the use of at least the spent steam supply of L...

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PUM

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Abstract

A system for use in a combined cycle or rankine cycle power plant using an air-cooled steam condenser is provided and includes a steam turbine from which first and second steam supplies are outputtedat high and low respective pressures, an air-cooled condenser configured to fluidly receive and to air-cool at least the first steam supply via a supply of air, a cooling tower from which a first water supply is cycled, a chilling coil through which a second water supply water is cycled to thereby cool the supply of air, and a vapor-absorption-machine (VAM) configured to fluidly receive the secondsteam supply and the first water supply by which a refrigeration cycle is conducted to thereby cool the second water supply.

Description

technical field [0001] Aspects of the invention are directed to systems and methods for a combined cycle or Rankine cycle power plant, and more particularly, to systems and methods for a combined cycle or Rankine cycle power plant with an air-cooled steam condenser therein for improved efficiency. systems and methods. Background technique [0002] In combined cycle power plants used in water-scarce regions of the world, air-cooled condensers are installed due to the lack of water availability. Air-cooled condensers have cooling limitations and cause performance losses to power equipment. [0003] This problem is handled in some cases by using an auxiliary air-cooled condenser on particularly hot days. Air-cooled condensers are also installed in other cases in combined cycle power plants that include auxiliary fin-fan coolers that are run on hot days to reduce the extra load for the air-cooled condenser. Contents of the invention [0004] According to one aspect of the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K11/02F01K25/08
CPCY02E20/16Y02E20/18F01K9/003F01K23/106F28B1/06F28B5/00F28B7/00F28B9/06
Inventor A·K·沙马P·纳拉延S·V·钱德拉波斯
Owner GENERAL ELECTRIC CO
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