Low ebb electricity and waste heat recovering, storing and recycling system of internal combustion engine generator

Abstract

The invention discloses a low ebb electricity and waste heat recovering, storing and recycling system of an internal combustion engine generator. The low ebb electricity and waste heat recovering, storing and recycling system comprises the internal combustion engine generator, an air compressing device, a waste heat recovering device, an air heat exchanging device and an expansion machine, wherein the air compressing device is used for recovering and storing low ebb electricity in a mode of compressed air when electricity utilization is in a low ebb; the waste heat recovering device is used for recovering and storing waste heat generated by the generator and the compressing device in the work process; and when needed, with the adoption of the air heat exchanging device, the compressed air released from the air compressing device can absorb heat in the waste heat recovering device and enter the expansion machine to do work. The invention also discloses a low ebb electricity and waste heat recovering, storing and recycling method of the internal combustion engine generator. According to the low ebb electricity and waste heat recovering, storing and recycling system, waste heat recovering and low ebb electricity storing are combined to be used in generating technology, therefore, the energy utilization efficiency of the internal combustion engine generator is effectively improved, in addition, the utilization patterns of the waste heat are broadened, and the effect of peak shaving is acted on the internal combustion engine generator.

Description

technical field [0001] The invention relates to a low-valley power and waste heat recovery, storage and reuse system of an internal combustion generator, in particular to a diesel generator waste heat and low-valley power recovery, storage and utilization, and a peak-shaving system. Background technique [0002] Internal combustion generators are used more and more widely as a supplement to power demand during peak periods of electricity consumption and as a main source of backup power for enterprises and institutions. Internal combustion generators include fuel generators and gas generators, and fuel generators can include Diesel generators, gasoline generators, etc., diesel generators are currently the most widely used. At present, for power generation systems that use diesel as fuel, only about 35% of the fuel energy is converted into electrical energy by the generator, and the other 30% and 25% of the energy are taken away by the exhaust gas and generator cooling water r...

AI Technical Summary

Problems solved by technology

[0003] In addition, during the working process of the generator, no-load or low power consumption often occurs, and its fuel consumption per unit power increases, resulting in waste of fuel and environmental pollution. When the peak power consumption is greater than the rated power of the internal combustion generator, the generator cannot Meet system requirements

For this problem, although energy storage battery technology can play a certain role in peak regulation, it is difficult to be widely used in internal combustion engine power generation systems due to the limitations of its use cost and efficiency.

Images