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Gas turbine and compressed air coupling system and method capable of quickly responding to peak and frequency regulation requirements

A technology of peak regulation, frequency modulation and compressed air, which is applied to gas turbine devices, mechanical equipment, steam engine devices, etc., can solve the problems of limited quick start response capability and long start process, and achieve multi-level utilization, fast start response speed, Set up simple effects

Active Publication Date: 2021-12-31
GUIZHOU POWER GRID CO LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the characteristics of the gas turbine system itself, the start-up process is relatively long, and its quick start-up response capability is limited

Method used

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  • Gas turbine and compressed air coupling system and method capable of quickly responding to peak and frequency regulation requirements

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Embodiment Construction

[0024] A gas turbine and compressed air coupling system that quickly responds to the demand for peak regulation and frequency regulation. The gas turbine combustion chamber 1 is connected to the gas turbine 2; the exhaust main pipe is installed at the inlet of the waste heat recovery device 11, and the first valve is arranged on the exhaust main pipe 13. The gas turbine 2 is connected to the inlet exhaust main pipe of the waste heat recovery device through the pipeline I, and the exhaust gas of the gas turbine directly enters the waste heat recovery device through the pipeline I and the exhaust main pipe; the gas turbine 2 and the first heat exchanger 7 pass through the pipeline II Connected, the exhaust gas of the gas turbine can enter the first heat exchanger 7 to heat the compressed air through the pipeline II; the energy storage compressor turbine 5 is connected to the first heat exchanger 7, and the compressed high-temperature and high-pressure air can enter the first heat ...

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Abstract

The invention discloses a gas turbine and compressed air coupling system and method capable of quickly responding to peak and frequency regulation requirements. The gas turbine and compressed air coupling system comprises a gas turbine combustion chamber, and the gas turbine combustion chamber is connected with a gas turbine; an exhaust mother pipe is arranged at an inlet of a waste heat recovery device, and a first valve is arranged on the exhaust mother pipe; the gas turbine is connected with the exhaust mother pipe at the inlet of the waste heat recovery device through a pipeline I; the gas turbine is connected with a first heat exchanger through a pipeline II; an energy storage compressor turbine is connected with the first heat exchanger; the first heat exchanger is connected with a high-pressure gas storage tank; the high-pressure gas storage tank is connected with a second heat exchanger; the gas turbine is connected with the second heat exchanger through a pipeline III; the second heat exchanger is connected with an energy storage expansion machine; the waste heat recovery device is connected with a heat storage unit; and quick responding and subsequent stable energy supply of the system are ensured. The method is flexible and simple, the starting response speed is high, multi-stage utilization of energy and fuel is achieved, the energy efficiency of the system can be improved, and meanwhile the purpose of reducing emission is achieved.

Description

technical field [0001] The invention relates to the fields of energy storage and comprehensive energy applications. It mainly relates to a gas turbine and compressed air coupling system and method that quickly responds to the demand of peak regulation and frequency regulation. Background technique [0002] With the gradual implementation of the "double carbon" policy, the large-scale development and utilization of renewable energy is imperative. However, renewable energy has inherent defects such as low energy density, intermittency, and randomness, which put forward higher requirements for power grid load shifting, safe and stable operation. [0003] At present, the power grid has adopted gas turbine units to meet part of the demand for peak regulation and frequency regulation. Due to the characteristics of the gas turbine system itself, the start-up process is relatively long, and its quick start-up response capability is limited. The compressed air energy storage devic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C6/00F02C6/18F02C7/08F01K27/00F01K13/00F01D15/10F04D25/06
CPCF02C6/00F02C6/18F02C7/08F01K27/00F01K13/00F01K13/006F01D15/10F04D25/06Y02E60/16
Inventor 周科钟晶亮文贤馗李翔李枝林
Owner GUIZHOU POWER GRID CO LTD
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