Multi-grade using backheating drain residual heat generator of thermal power generator set

A technology for thermal power units and waste heat power generation, which is applied in steam engine devices, machines/engines, mechanical equipment, etc. It can solve the problems of lagging and untapped energy-saving potentials in thermal systems, and achieve improved thermodynamics, output, and energy-saving potentials huge effect

Inactive Publication Date: 2006-06-28
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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Problems solved by technology

From the perspective of energy-saving practice and theoretical development, the technical perfection of steam turbines is the first priority, followed by boilers. However, the exploration of the energy-saving potential of thermal systems is relativ

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  • Multi-grade using backheating drain residual heat generator of thermal power generator set

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Example Embodiment

[0008] figure 1 Shows the principle thermal system of the power generation device of the present invention. The system shown in the figure combines a thermal power unit regenerative cycle and a multi-stage thermal system using regenerative drainage waste heat to generate electricity. The steam ejector is combined with a decompression expansion vessel to generate low-pressure steam that drives a low-pressure steam turbine. figure 1 The system shown includes a boiler 1 for primary reheating of steam from a thermal power unit, which produces primary steam and enters the high-pressure cylinder 2 of the turbine to perform work. The high-pressure cylinder exhaust steam is reheated by the boiler and the secondary steam enters the intermediate pressure cylinder 3 of the turbine to perform work. Then, the low-pressure cylinder 4 of the steam turbine enters the main condenser 17 after performing work to complete the conversion of thermal energy and mechanical energy, and then the generator...

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Abstract

The invention discloses an electricity generating device using multistage regenerative heat and remaining heat by thermal power machine set, comprising routing main steam turbine generator system and routine regenerative system and its characters lie in adding pressure reducing expanding container, steam jet, low pressure turbine, and small generator, etc., combining the steam jet and the pressure reducing expanding container to produce low pressure steam to drive the low pressure turbine, using drainage variable phase heat release of the regenerative system to produce low pressure steam, converting the low pressure steam heat energy into mechanical energy, converting the mechanical energy into electric energy through the small generator, and the lower pressure steam produced by drainage variable phase heat release can also serve as auxiliary steam source for heat users inside and outside power plant to feed heat to the users, and the working medium can return to the regenerative system, somewhat improving thermodynamic property of the regenerative system. It is an energy-saving, efficiency-raising measure.

Description

Invention field [0001] The invention belongs to the technical field of thermal power generation systems in thermal energy engineering, and relates to a thermal power unit multi-stage power generation device using regenerative and draining waste heat. Background technique [0002] After the realization of the system transformation of "separation of power plants from the grid and the province as an entity" in the power industry of our country, the power industry has achieved considerable development. As the main place for the conversion of primary energy and secondary energy, thermal power plant is also a large energy consumer. This requires strengthening power plant management and reducing power consumption. In the energy saving and consumption reduction project of thermal power plants, the thermal system is an important aspect that has energy saving potential to be tapped. From the perspective of energy-saving practice and theoretical development, the emphasis on the technical pe...

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Application Information

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IPC IPC(8): F01K27/00
CPCY02P80/15
Inventor 石奇光
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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