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System combining power generation apparatus and desalination apparatus

a technology of power generation apparatus and desalination apparatus, which is applied in the direction of evaporation, machines/engines, separation processes, etc., to achieve the effect of preventing the generation of carbon dioxide and the lik

Inactive Publication Date: 2014-03-20
KOBE STEEL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a system for generating sweet water from seawater without using a reverse osmosis membrane and a pressurized pump, which requires large power. Instead, a suction pump is used to evaporate the seawater by lowering the atmospheric pressure in a space and generate enough water vapor for condensation in a condenser. This reduces the necessary electric power and prevents carbon dioxide generation. The control device ensures that the space becomes a saturated water vapor pressure, allowing for efficient evaporation of the seawater.

Problems solved by technology

Further, the suction pump only requires such mechanical power that the atmospheric pressure in the space can be lowered to the saturated water vapor pressure.

Method used

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  • System combining power generation apparatus and desalination apparatus
  • System combining power generation apparatus and desalination apparatus
  • System combining power generation apparatus and desalination apparatus

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Embodiment Construction

[0025]A system combining a power generation apparatus 100 and a desalination apparatus 200 of an embodiment of the present invention will be described with reference to FIG. 1.

[0026]The power generation apparatus 100 is provided with a circulation circuit 10 through which a working medium is circulated, and a power generator 15. It should be noted that a working medium whose boiling point is lower than water (such as R245fa) is used as the working medium.

[0027]The circulation circuit 10 is a closed circuit in which a first heat exchanger 11 for evaporating the working medium, an expander 12 for expanding the working medium, a second heat exchanger 13 for condensing the working medium exhausted from the expander 12, and a working medium pump 14 for feeding the working medium condensed in the second heat exchanger 13 to the first heat exchanger 11 are connected in series via pipes.

[0028]The first heat exchanger 11 is to evaporate and bring the liquid working medium into wet vapor, sat...

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Abstract

In a system combining a power generation apparatus and a desalination apparatus, the power generation apparatus includes a circulation circuit in which a first heat exchanger, an expander, a second heat exchanger having a space, the second heat exchanger for evaporating seawater and generating water vapor, and a working medium pump are connected in series, and a power generator, and the desalination apparatus includes a suction pump for suctioning a gas in the space, a control device for driving the suction pump in such a manner that an atmospheric pressure in the space becomes a saturated water vapor pressure, a condenser for condensing the water vapor led from the space, and a sweet water storage tank for storing sweet water (W) condensed in the condenser.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a system combining a power generation apparatus and a desalination apparatus.[0003]2. Description of the Related Art[0004]Conventionally, a system of generating electric power and also generating sweet water from seawater (performing water generation) is known. For example, Japanese Patent Application Laid-Open No. 2007-309295 discloses a system combining a power generation apparatus and a desalination apparatus. The power generation apparatus includes a circulation circuit in which a first heat exchanger for evaporating a working medium, an expander provided on the downstream side of this first heat exchanger, a second heat exchanger for exchanging heat between the working medium exhausted from this expander and seawater supplied from an exterior, and a working medium pump for feeding the working medium flowing out from this second heat exchanger to the first heat exchanger are connecte...

Claims

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Application Information

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IPC IPC(8): F01K3/00
CPCF01K3/00B01D1/0058F01C13/00F01K3/002Y02E10/46Y02A20/124B01D61/02C02F1/22F01K25/06F01K25/10
Inventor MATSUMURA, MASAYOSHI
Owner KOBE STEEL LTD
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