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Generating apparatus

A technology for power generation devices and generators, which is applied to steam engine devices, engine components, machines/engines, etc., and can solve problems such as poor efficiency, inability to properly cope with changing heat sources, and failure to consider heat distribution.

Inactive Publication Date: 2014-12-10
KOBE STEEL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, just configuring a plurality of heat cycles as described above does not take into account how much heat is distributed and supplied to which heat cycle, and it may result in inefficient heat recovery and cannot properly cope with fluctuating heat sources.

Method used

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Embodiment Construction

[0039] Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, in figure 1 In , the configuration of the power generating device 100 as the first embodiment of the present invention is shown. The power generation device 100 has two power generation cycles 1a, 1b. The power generation cycles 1a and 1b are respectively Rankine cycle heat engines constituted by a closed circulation flow path 6. The circulation flow path 6 is interposed with an evaporator 2, a screw expander 3, a condenser 4 and a pump 5, and a working medium ( For example, Freon-based heat medium such as R245fa).

[0040] The evaporator 2 is a heat exchanger for evaporating the working medium by exchanging heat with a heating medium supplied from a heat source outside the device (for example, steam extracted from a pit or steam produced by a boiler). The working medium evaporated in the evaporator 2 is introduced into the screw expander 3 and expanded in the s...

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PUM

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Abstract

A plurality of generating circulations are provided. Heating medium supply division loops for providing heating medium to the evaporators of the generating circulations are provided. Division loops for discharging the heating medium from the evaporators are provided. Cooling medium division loops for providing cooling medium to condensers and cooling medium discharging division loops for discharging the cooling medium from the condensors are provided. According to the generating apparatus, at least one heating medium supply division loop or heating medium discharging division loop is provided with a heating medium stop valve, and a cooling medium division loop or a cooling medium discharging division loop is provided with a cooling medium stop valve. Through the structure, heat can be appropriately distributed to a plurality of heating circulations for generating power according to the change of heat sources.

Description

technical field [0001] The present invention relates to power generating devices. Background technique [0002] As a power generation device, flash evaporation for driving an engine by flash evaporation of water vapor has been widely introduced. However, in recent years, from the viewpoint of energy saving, there has been an increasing demand for a system capable of generating power from low-temperature heat that cannot be utilized by flash evaporation for use in waste heat recovery and the like. [0003] As such a power generation device, there is a binary power generation system that utilizes a Rankine cycle as a thermal cycle for driving a turbine or an expander with a low-boiling-point working medium. Closed-loop internal circulation of an evaporator, a screw turbine for expanding the working fluid vapor to do work, a condenser for condensing the working fluid vapor, and a circulation pump for circulating the working fluid. [0004] Generally, in a binary power generat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01K27/00F01K25/10F01K13/02
CPCF01D15/10F01D17/00F01K9/003F01K13/02F01K23/08F01K25/10
Inventor 足立成人松村昌义成川裕高桥和雄
Owner KOBE STEEL LTD