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Steam power generator and complete set of equipment

A power generation device and steam technology, applied in mechanical equipment, variable displacement engines, combined engines, etc., can solve problems such as wasting energy, and achieve the effects of improving thermal efficiency, reducing exhaust volume, and reducing steam volume

Inactive Publication Date: 2010-06-16
KOBE STEEL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, even for other steam processes, it is rare that the steam energy can be completely consumed, and in most cases, the low-pressure steam is eventually discarded and energy is wasted.

Method used

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  • Steam power generator and complete set of equipment
  • Steam power generator and complete set of equipment
  • Steam power generator and complete set of equipment

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Experimental program
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Embodiment Construction

[0016] Next, embodiments of the present invention will be described with reference to the drawings. figure 1 The configuration of a plant including the steam generator 1 according to the first embodiment of the present invention is shown. The complete set of equipment in this embodiment includes: a steam power generation device 1, which uses high-pressure steam (for example, 0.8MPaG) to generate electricity; (eg 0.2MPaG) to be used.

[0017] The steam power generation device 1 has: a screw expander 4, which is a kind of volumetric steam expander, and a pair of male and female screw rotors are accommodated in the expansion chamber, and high-pressure steam is sucked into the expansion chamber, and the expansion force of the steam is converted to the screw rotor. The generator 5 is driven to rotate by the screw expander 4 through gears and converts the rotation force into electricity; the screw compressor 6, which is a volumetric steam compressor, accommodates a pair of male and...

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Abstract

A steam power generator comprises the following components: a steam expander which converts the expansion force of high-pressure steam into rotation force; a steam compressor (6) which is driven by the rotation force of the steam expander and compresses low-pressure steam for discharging to a suction flow path of the steam expander; and a power generator which is driven by the rotation force of the steam expander for generating power and supplying the low-pressure steam to the steam compressor. The low-pressure steam is obtained through decompressing the condensate of a steam lap equipped for the requirement of steam discharged by the steam expander secondarily through a flash evaporation drum. According to the structure, the steam power generator with high energy efficiency can be provided.

Description

technical field [0001] The invention relates to a steam power generation device. Background technique [0002] A steam power generation device that converts the expansion force of steam into rotational force by means of a turbine to drive a generator is widely used. In general, in a steam power plant, high-pressure steam is used as an energy source and medium-low pressure steam is discharged. The discharged medium-low pressure steam is usually condensed and returned to a steam generating source such as a boiler. However, since the discharged medium-low pressure steam is condensed, heat energy of the steam is wasted. Then, for example, Japanese Patent Application Laid-Open No. 2007-74894 describes a plant structure for secondary utilization of low-pressure steam that drives a steam power generation device through a separate process (required equipment). [0003] However, even in other steam processes, it is rare that the steam energy can be completely consumed. In most case...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01C11/00F01B21/00
Inventor 松隈正树
Owner KOBE STEEL LTD
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