Unlock instant, AI-driven research and patent intelligence for your innovation.

Regenerative energy storage power generation method and power generation system thereof

A power generation system, regenerative technology, used in machines/engines, lighting and heating equipment, evaporators/condensers, etc., can solve the problems of flooded cities, huge initial investment, and low energy density of compressed air energy storage systems

Active Publication Date: 2022-04-15
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned electric energy storage methods all have relatively large problems.
For example, 1. The pumped hydropower station energy storage system requires special geographical conditions to build two reservoirs and dams, which has the problem of long construction period and huge initial investment
Moreover, the construction of large reservoirs will inundate large areas of vegetation and even cities, causing ecological and immigration problems
2. The common compressed air energy storage system needs to rely on the burning of fossil fuels to provide heat sources. On the one hand, it faces the threat of the gradual depletion of fossil fuels and rising prices. On the other hand, its combustion still produces pollutants such as nitrogen compounds, sulfides, and carbon dioxide. Green and renewable energy development requirements
Although making the compressed air energy storage system can basically avoid burning fossil fuels, the energy density of the compressed air energy storage system is still very low, and there is also the problem of requiring a large gas storage chamber
[0003] In order to solve the deficiencies of the existing electric energy storage technology, those skilled in the art consider that the power generation efficiency and system stability of the existing electric energy storage technology need to be improved

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Regenerative energy storage power generation method and power generation system thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A regenerative energy storage power generation method is recorded, such as figure 1 shown, including the following steps:

[0054] In the process of energy storage, electric energy is used to cool low-temperature cold energy, and high-temperature heat energy is absorbed from thermal power plants.

[0055] In the waste heat absorption circuit of the thermal power plant, the feedwater pump 26 drives the water working medium to flow into the boiler 27, absorbing the heat energy released by the combustion of fuel in the boiler 27 to a high-temperature and high-pressure steam state, and the high-temperature and high-pressure water vapor expands through the steam turbine 28 to a low-temperature and low-pressure state. When the electricity load is low, the exhaust steam from the steam turbine 28 returns to the boiler 27 to absorb heat through the pipeline, flows into the waste heat exchanger 17 of the thermal power plant to release heat energy, and then enters the condenser 30...

Embodiment 2

[0067] A regenerative energy storage power generation system is recorded, such as figure 1 shown, which includes:

[0068]The power generation circuit of the regenerative cold and heat heat engine includes: low-temperature heat exchanger 1, energy-releasing compressor unit 2, intermediate heat exchanger 3, high-temperature heat exchanger 4, energy-releasing expansion unit 5, energy-releasing power generation unit 6, waste heat exhaust Radiator heat exchanger 7, low-temperature booster pump 8, high-temperature booster pump 11, low-temperature liquid cold storage tank 9, normal temperature liquid storage tank 10, sub-high temperature liquid heat storage tank 12, high-temperature liquid heat storage tank 13;

[0069] A reverse Brayton cycle refrigeration circuit, including: a refrigeration circuit drive unit 18, a refrigeration expansion unit 19, a multi-stage intercooling refrigeration compression mechanism, a cold energy recovery heat exchanger 16, and an intercooling heat exch...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The regenerative energy storage power generation method comprises the following steps that in the energy storage process, a secondary high-temperature liquid heat storage working medium flows out of a secondary high-temperature liquid heat storage tank and enters a heat source waste heat exchanger to absorb heat energy to a high-temperature state; the high-temperature liquid heat storage working medium carries heat energy to flow into the high-temperature liquid heat storage tank to be stored; the liquid cold storage working medium is driven to flow out of the normal-temperature liquid storage tank and enters the cold energy recovery heat exchanger to absorb cold energy to a low-temperature state, and the low-temperature liquid cold storage working medium flows into the low-temperature liquid cold storage tank to be stored; in the energy releasing process, the stored high-temperature heat energy and low-temperature cold energy are continuously converted into electric energy to be released. By means of the structure, the power energy storage technology can guarantee the power generation efficiency, and meanwhile the system stability can be effectively considered.

Description

technical field [0001] The invention relates to the technical field of heat pump electricity storage and energy reutilization, in particular to a regenerative energy storage power generation method and a power generation system thereof. Background technique [0002] At present, the existing power energy storage technologies include pumped water energy storage, compressed air energy storage, battery energy storage, superconducting magnetic energy, flywheel energy storage and supercapacitors. However, the above electric energy storage methods all have relatively large problems. For example, 1. The pumped hydropower station energy storage system requires special geographical conditions to build two reservoirs and dams, which has the problems of long construction period and huge initial investment. Moreover, the construction of large reservoirs will inundate large areas of vegetation and even cities, causing ecological and immigration problems. 2. The common compressed air ene...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F01K27/00F01K3/00F25B1/10F25B41/40F25B9/06F25B43/00F25B39/00F25D3/00
CPCY02E60/14
Inventor 王亮张涵陈海生彭珑凌浩恕张双
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI