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Low-grade heat-flow prime mover, generating system and method thereof

A power generation system, low-grade technology, applied in the field of utilization of low-grade heat flow, can solve the problems of increasing environmental pollution, water resource consumption, and insufficient use of heat energy

Inactive Publication Date: 2011-03-23
王世英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The development of social economy requires sufficient electricity to support, but the establishment of new thermal power plants will undoubtedly further increase environmental pollution and water consumption; the same problem exists in other thermal energy that is not fully utilized

Method used

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  • Low-grade heat-flow prime mover, generating system and method thereof
  • Low-grade heat-flow prime mover, generating system and method thereof
  • Low-grade heat-flow prime mover, generating system and method thereof

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Embodiment Construction

[0080] Below in conjunction with accompanying drawing, the present invention is further described:

[0081] see figure 1 : The first type of basic power generation cycle, using one of the low boiling point medium such as dimethyl ether, in the tube side of the heat flow boiler unit 1, the high pressure and low temperature low boiling point medium absorbs the 200°C heat flow heat from the hot liquid side and then vaporizes at 120°C , enter the expansion work unit 2, decompress and expand, convert the pressure energy into kinetic energy to drive the moving parts of the expansion work unit 2 to do work, drive the power generation unit 3 to generate electricity through the power output shaft, and the temperature of the low boiling point medium after the work is reduced to the liquefaction temperature 40 ℃, enter the cooling unit 4 to be cooled and liquefied, and then pressurized to subcritical or critical or even supercritical pressure by the booster pump unit 5 and enter the tube...

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Abstract

The invention relates to a low-grade heat-flow prime mover, a generating system and a method thereof. The prime mover comprises the following working units, i.e. a heat-flow boiler unit, an expansion power unit, a liquefying unit and a pressurization unit, wherein the heat-flow boiler unit comprises a heat-flow boiler which uses a low-grade heat flow as a heat source without heat provided by fuel, a medium with a low boiling point is adopted to pass through the working units for working circulation, and the expansion power unit is provided with a power output shaft which drives a generating unit to form a generating system or drive the working unit so as to fully recycle and utilize castoff heat energy, improve the utilization rate of the heat source, save resources and protect the environment. The technical scheme provided by the invention is suitable for a heat source temperature range of 40-200 DEG C and a pressure range from positive pressure to negative pressure.

Description

Technical field: [0001] The invention relates to a utilization method of low-grade heat flow, especially a system and method for converting low-grade heat flow into electric energy and mechanical energy. Background technique: [0002] Hyperbolic cooling tower flash steam, exhaust steam (gas) of various drying equipment, various furnace flue gas, engine exhaust of various fuels, air conditioning exhaust, various fluids with a certain temperature, etc. have a large amount of Heat, known as low-grade thermal energy or low-grade exhalation into the atmosphere, is an important cause of global warming. [0003] Patent 02116497.5 proposes a method and device for power generation from exhaust gas of an internal combustion engine and hydrogen production, which can only improve the combustion of the internal combustion engine. Patent 02143430.1 is to solve the noise reduction of engine power generation. The patent 01273968.5 carbon dioxide power generation device uses closed-loop ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K11/00F01K25/10F01K27/00F22B1/16
CPCF05D2220/75F02C3/20F01K25/10F01K23/04
Inventor 王世英王恩岐
Owner 王世英
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