Britton-mixed steam Rankine combined cycle power generation device

Abstract

The invention relates to a Britton-mixed steam Rankine combined cycle power generation device. Exhaust gas of a Britton cycle is adopted as a heat source of a mixed steam Rankine cycle system; a mixed steam Rankine combined cycle is used for directly compounding a high-pressure end steam Rankine cycle with a low-pressure end steam Rankine cycle through a low-pressure steam generator 5; and latent heat of vaporization released when exhaust steam of a high-temperature end steam Rankine cycle turbine is condensed is all utilized for low-temperature steam Rankine cycle power generation, so that the load of the conventional steam Rankine cycle system condenser is effectively reduced by more than 20%, and the absolute cycle heat efficiency of the whole system can be improved by more than 5% by adopting the system optimization technology. The Britton-mixed steam Rankine combined cycle power generation device can be applied to not only energy-saving reform of the conventional machine sets but also design and construction of new machine units, and has very remarkable economic, social and environment-friendly benefits.

Description

technical field [0001] The invention relates to a Breton-mixed steam Rankine combined cycle power generation device, specifically belonging to the technical field of thermal power plant power devices. Background technique [0002] Gas-steam combined cycle has a series of advantages such as high thermal efficiency, fast start-up speed, good environmental protection conditions, short installation period, low investment cost, etc., coupled with the rapid development of gas turbine technology in recent years, the single unit power of gas turbine is also increasing continuously, combined cycle The research has attracted the attention and implementation of countries all over the world. [0003] The research on combined cycle power generation technology in foreign countries began in the late 1960s. After decades of development, at present, the gas-steam combined cycle power generation technology in many developed countries such as the United States, the United Kingdom, and Japan ha...

AI Technical Summary

Problems solved by technology

Although this part of waste heat resources is a huge waste, it is difficult to recycle it. The main reasons are: (1) The quality of waste heat is low, and no effective utilization method has been found; (2) Recovery of this part of waste heat is often harmful to boilers. It is risky to make major changes to the original thermal system; (3) The heat balance problem is difficult to organize, and it is difficult to use it directly in the factory. It is often necessary to look for suitable heat users outside, and the heat load of heat users is often Will fluctuate, limiting the generalizability of the recovery method

Images