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power generation device

A power generation device and working medium technology, which is applied to steam engine devices, engine components, engine starting, etc., and can solve problems such as a sharp rise in warm water temperature and an increase in superheat at the outlet of the evaporator

Inactive Publication Date: 2018-09-21
KOBE STEEL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in this binary power generation device, there remains a problem that it cannot cope with a sudden rise in the temperature of warm water (heat source medium).
That is, if the temperature of the warm water at the outlet side of the evaporator 71 rises, the rotation speed of the circulating pump 74 is adjusted in an upward manner, but when the temperature of the warm water rises sharply, the increase in the flow rate of the working medium cannot keep up, and the flow rate at the outlet of the evaporator cannot be kept up. superheat will temporarily rise
Therefore, there is a problem in that the gasket and the like of the flange existing in the path from the evaporator 71 to the expander 72 have to be made of a heat-resistant material.

Method used

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Embodiment Construction

[0014] Refer to the attachment below Figure one The method for implementing the present invention will be described in detail.

[0015] The power generation device 1 according to the first embodiment is a power generation system using the Rankine cycle, such as figure 1 As shown, it includes: a condenser 6, a circulating pump 8, an evaporator 10, and an expander 14. The condenser 6, the circulation pump 8, the heater 10, and the expander 14 are installed in the circulation flow path 4 in this order. In the power generation device 1 according to the present embodiment, a circulation circuit in which the working medium flows through the heater 10, the expander 14, the condenser 6, and the circulation pump 8 through the circulation flow path 4 in this order is configured. As the working medium, a refrigerant with a lower boiling point than water is used.

[0016] The generator 16 is connected to the expander 14. The gaseous working medium is expanded in the expander 14 to extract...

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Abstract

The power generation device (1) of the present invention includes: an expander (14) for expanding the gaseous working medium; a condenser (6) for condensing the working medium expanded in the expander (14); a pump (8) for The working medium condensed in the condenser (6) is pressurized; the heater (10) makes the working medium pressurized by the pump (8) evaporate by the heat of the heat source medium; the cooling mechanism (25), in the heater ( 10) The downstream side cools the overheated working medium above a predetermined temperature.

Description

Technical field [0001] The invention relates to a power generation device. Background technique [0002] Conventionally, as disclosed in Patent Document 1 below, there has been known a binary power generation device that drives a generator via an expander provided in a circulating pipe through which a working medium circulates. Such as Figure 7 As shown, in the binary power generation device disclosed in Patent Document 1, the evaporator 71, the expander 72, the condenser 73, and the circulation pump 74 are connected to the circulation pipe 75 in this order. The evaporator 71 evaporates the working medium by using warm water discharged from the factory or warm water from a hot spring as a heat source medium. A temperature measuring mechanism 76 is provided on the exit side of the evaporator 71 in the flow path through which the heat source medium flows. Based on the measured value, the rotation speed of the circulating pump 74 is adjusted. That is, if the temperature of the ho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01K13/02F01D17/08F01D19/02
CPCF01K9/003F01K13/02
Inventor 足立成人垣内哲也成川裕福田贵之高桥和雄
Owner KOBE STEEL LTD
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