Method and device for power generation by employing multiple dispersed residual heat sources and various residual heat carrier medium

A technology of waste heat and carrier, which is applied in the direction of steam engine device, machine/engine, combined combustion mitigation, etc., can solve the problems of poor economy, insufficient use of waste heat, and inability to use the heat of waste heat carrier medium to generate electricity at the same time, so as to improve the overall efficiency and relatively Less heat pollution, good independence effect
CN101178018AInactive Publication Date: 2008-05-14DONGFANG TURBINE CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
DONGFANG TURBINE CO LTD
Publication Date
2008-05-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method of making use of a plurality of dispersed waste heat sources and various waste heat vector mediums for generating. A waste heat generating system is arranged and the system is provided with a plurality of subsystems at the same row; the number of the subsystems is same as that of the dispersed waste heat sources. Each subsystem has a closed circuit cycle device comprising a working fluid condenser, a pump, a waste heat exchanger and a turbine that are connected through pipes in sequence and a motor connected with the turbine; the working fluid to each subsystem is matching with the waste heat vector medium of the subsystem. All subsystems are divided into groups with two in each group and each group has a high temperature subsystem and a low temperature subsystem; the liquid phase working fluid of the low temperature subsystem exchanges heat with the vapor phase working fluid of the high temperature subsystem which has done work and then is sent to the waste heat exchanger of the low temperature subsystem to be vaporized after being preheated; or the liquid phase working fluid of both the high and the low temperature subsystems respectively exchange heat with the vapor phase working fluid of the high temperature subsystem which has done work and then are sent to each waste heat exchanger to be vaporized after being preheated.
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Description

technical field

[0001] The present invention relates to waste heat power generation technology, in particular to a method and device for generating electricity by using waste heat sources with a wide distribution range, a large total heat power but a small single heat power and diverse waste heat carrier media. Background technique

[0002] my country is a big country in energy production and consumption. Its energy production ranks third in the world after the United States and Russia. Basic energy consumption accounts for 1 / 10 of the world's total consumption, second only to the United States and ranks second in the world. But my country's energy utilization rate is not high, and some developed countries have an energy utilization rate of more than 50%. The energy utilization rate of the United States has exceeded 60%, while my country's energy utilization rate is only about 30%. According to statistics, in 2003 my country's energy consumption intensity was 6.9 times that ...

Claims

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