Method for enhancing power generation efficiency and separating gas, and gas separating system

Abstract

The invention provides a method for enhancing power generation efficiency and separating gas. The method comprises a power generator set and a gas separator set. At least one power generator set is in a non-economic load operation state, or needs to be changed in the operation state according to power grid scheduling, or in the state of combination of the two states. A gas separator set system is provided with an information communication part which contacts a power grid or power plant scheduling. The gas separator set at least receives the scheduling of a power plant or the power grid or the combination of the two. The scheduling comprises information and commands. At least one power generator set, which does not operate in accordance with the power grid scheduling, surpasses the quantity of generated electric energy permitted by the power grip scheduling and is used for operation of corresponding number of non-power generator set auxiliary type gas separator sets so that power grid loads are balanced. Meanwhile, a physical separating method is adopted to separate gas. According to a gas generating system using the aforementioned method, at least one gas separator set adjusting the power grid electric loads is provided with the information communication part.

Description

technical field [0001] The present invention relates to a method of improving power generation efficiency, reducing electricity cost and separating gas and proposes a gas separation system, in particular, it relates to the electricity produced by generating units with varying loads and non-economical operation exceeding the grid dispatching allowance A method for driving a gas separation unit to separate gas. Background technique [0002] The power system includes one or more power generation subsystems, power transmission and transformation subsystems, and power consumption subsystems. The power generation subsystem includes at least one generator, mechanical motion generating part and auxiliary supporting parts. For example, a thermal power generation system includes at least a boiler part, a steam turbine part and a generator part, as well as various auxiliary parts such as a water system part and an air compressor. . At this time, the air compressor unit is only to mee...

AI Technical Summary

Problems solved by technology

In 2011, the peak-to-valley difference of my country's electricity load reached 40-50%, and at least 20-30% of the power capacity was used as a peak-shaving power source; in order to adjust the peak-to-valley gap of the power load during the day and night, the most common thing now is to build a pumped storage power station First, the pumped storage power station has a huge investment, generally 5,000 yuan / kW and above; second, it needs to go through two electric energy conversions with energy loss, and the energy loss is relatively large. The energy conversion efficiency of the pumped storage power station - the overall efficiency coefficient Some are only about 65%; third, water resources depend on the weather, and there are seasons of abundance and dryness; fourth, the final energy form is still electrical energy with large losses

Theoretical calculations are based on 21% oxygen in the air, so that 1 cubic meter of natural gas is completely combusted, about 10 cubic meters of air is needed, and the total flue gas volume is about 11 cubic meters. It can also be said that every cubic meter of natural gas burned in daily life After complete combustion, an invalid 8 cubic meters of nitrogen will be heated, resulting in energy waste, excessive consumption of indoor oxygen and generation of harmful nitrogen oxides; if converted into pure oxygen, only 2 cubic meters are needed

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