A combined cooling, heating and power generation system using coke oven gas and its application method

Abstract

A cooling, heating and power cogeneration system using coke oven gas and its application method, the system includes a compressor subsystem, a gas turbine subsystem, a Rankine cycle subsystem, a refrigeration subsystem and a heating subsystem; the compressor subsystem and the gas turbine The subsystems are connected, the gas turbine subsystem is connected with the Rankine cycle subsystem, and the Rankine cycle subsystem is connected with the refrigeration subsystem and the heating subsystem respectively. The method is: after the gas and air are heated and pressurized, they are mixed and burned in the combustion chamber to generate high-temperature and high-pressure flue gas, which enters the gas expander to do work to drive the gas generator to generate electricity. After doing work, the low-temperature flue gas enters the waste heat boiler as a heat source, and the waste heat boiler outputs high-temperature and high-pressure water. The steam enters the high-pressure steam turbine to do work to drive the high-pressure steam generator to generate electricity. After the work, the water steam directly enters the steam distribution chamber and is divided into three outputs. The first is used as the heating energy of the lithium bromide aqueous solution of the refrigeration subsystem, and the second is used to continue Generate electricity, and the third way is used for heating.

Description

technical field [0001] The invention belongs to the technical field of energy utilization, and in particular relates to a cooling, heating and power cogeneration system utilizing coke oven gas and a method for using the same. Background technique [0002] Energy is the foundation of social development and plays an indispensable role in the sustainable development of society. In order to achieve the goals of energy saving, environmental protection and green development, improving energy utilization efficiency and realizing energy cascade utilization is the only way in the future. [0003] As a by-product of coking, coke oven gas is mainly distributed in coking enterprises and coking plants that supply related urban industries, with an annual output of about 85 billion cubic meters. The use of coke oven gas for power generation can not only reduce the dependence on non-renewable energy such as oil and natural gas, And it can also digest the remaining coke oven gas, so using co...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the prior art, the present invention provides a combined cooling, heating and power generation system using coke oven gas and its application method, which can realize high-efficiency recovery and utilization of medium and low temperature coke oven gas, and can meet the needs of cooling, heating and electricity at the same time. It can effectively solve the problems of environmental pollution, high energy and low use, and low energy efficiency in the traditional energy system.

Images