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Supercritical carbon dioxide circulating and gas turbine combined layout and starting operation mode

A technology of carbon dioxide and operation mode, which is applied in the direction of machines/engines, mechanical equipment, steam engine devices, etc., can solve the problems that the start-up time cannot be too fast, increase the difficulty of operation adjustment, and the power consumption of the compressor is large, so as to shorten the start-up time, Stable and adjustable, flexible flow and pressure effects

Inactive Publication Date: 2016-11-23
XIAN THERMAL POWER RES INST CO LTD +1
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  • Application Information

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Problems solved by technology

However, the compressor of the supercritical carbon dioxide Brayton cycle consumes a lot of power. If it is driven by an electric motor alone, it will consume a huge amount of electric energy. The power of the motor is large, which increases the cost and increases the difficulty of operation adjustment; layout structure, the CO 2 Compressor and CO 2 The turbines are coaxially arranged. Since the supercritical carbon dioxide Brayton cycle is a closed cycle, the heat source is obtained through the heat exchange of the heat exchanger. The start-up time cannot be too fast, and a large-power motor is still required for start-up.

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  • Supercritical carbon dioxide circulating and gas turbine combined layout and starting operation mode

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Embodiment Construction

[0012] The present invention is described in further detail below in conjunction with accompanying drawing:

[0013] refer to figure 1 , the layout and start-up operation mode of the combination of supercritical carbon dioxide cycle and gas turbine described in the present invention include gas turbine 3, gas generator 2 and CO 2 Compressor 1, wherein, gas turbine 3, gas generator 2 and CO 2 The compressors 1 are coaxially arranged.

[0014] The present invention also includes CO 2 The turbine 4, the high-temperature waste heat exchanger 6, the low-temperature waste heat exchanger 5 and the regenerator 7, the flue gas outlet of the gas turbine 3 is connected with the heat release side inlet of the high-temperature waste heat exchanger 6, and the high-temperature waste heat exchanger 6 The heat release side outlet of the low temperature waste heat exchanger 5 is connected with the heat discharge side inlet of the low temperature waste heat exchanger 5, and the heat absorptio...

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Abstract

The invention discloses a supercritical carbon dioxide circulating and gas turbine combined layout and a starting operation mode. The layout comprises a gas turbine, a gas electric generator and a CO2 compressor. The gas turbine, the gas electric generator and the CO2 compressor are coaxially arranged. By the adoption of the mode, the CO2 compressor can be started, and meanwhile a high-power motor is avoided.

Description

technical field [0001] The invention belongs to the field of energy saving and environmental protection, and relates to a layout and start-up operation mode combining a supercritical carbon dioxide cycle and a gas turbine. Background technique [0002] The development of new energy and distributed energy has attracted increasing attention. Gas-fired power generation is an important form of distributed energy in China. Gas turbines have relatively high efficiency among various new energy sources. At the same time, the control is flexible and convenient, and can be used as a complementary utilization of other new energy sources. It is also one of the means of grid regulation. As a ground power generation system, gas turbines often need to be combined with waste heat recovery systems to improve their energy utilization efficiency. The current waste heat utilization mainly uses traditional steam boilers and steam turbines, and the research on further improving their thermal eff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K25/10F01K27/02
CPCF01K25/103F01K27/02
Inventor 高炜姚明宇李红智杨玉白文刚张一帆
Owner XIAN THERMAL POWER RES INST CO LTD