Gas turbine waste heat utilization system
A gas turbine and flue gas waste heat technology, which is applied to gas turbine devices, mechanical equipment, combustion methods, etc., can solve problems such as non-sustainable development, low waste heat utilization rate, waste heat waste, etc., and achieves alleviation of energy shortage, full and efficient combustion , The effect of reducing the exhaust gas temperature
Pending Publication Date: 2021-06-11
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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Problems solved by technology
[0003] However, at present, the waste heat utilization rate of the gas exhausted by the gas turbine is low, and a large amount of waste heat in the gas exhausted by the gas turbine is wasted, resulting in a large amount of waste of energy, which is not in line with the development concept of sustainable development, energy saving and emission reduction
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Embodiment 1
[0029] A gas turbine waste heat utilization system, the structure is as follows figure 1 As shown, it includes a gas turbine, a waste heat boiler, a steam turbine and a flue gas pipe. The two ends of the flue gas pipe are the smoke inlet 1 and the smoke outlet 7 respectively. The flue gas pipe flows out of the flue gas pipe from the smoke outlet 7, and the flue gas waste heat heat exchange area connected with the waste heat boiler is arranged in the center of the flue gas pipe, and the waste heat boiler is connected with the steam turbine.
[0030] This application adds a convection enhancement device to the waste heat utilization system of the gas turbine, which increases the flow velocity and disturbance degree of the flue gas, thereby increasing the convective heat transfer coefficient and the heat absorption efficiency of the waste heat boiler for the flue gas, and improving the utilization of the waste heat of the flue gas Rate. The convection enhancement device includes...
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The invention relates to a gas turbine waste heat utilization system. The gas turbine waste heat utilization system comprises a gas turbine, a waste heat boiler, a steam turbine and a smoke pipeline, wherein the smoke pipeline comprises a smoke inlet and a smoke outlet, smoke exhausted from a smoke exhaust port of the gas turbine flows into the smoke pipeline from the smoke inlet and flows out of the smoke pipeline from the smoke outlet, a smoke waste heat exchange area connected with the waste heat boiler is arranged at the center of the smoke pipeline, the waste heat boiler is connected with the steam turbine, the gas turbine waste heat utilization system further comprises a convection enhancement device, the convection enhancement device comprises a propeller and a motor, the propeller is arranged between the smoke inlet and the smoke waste heat exchange area, and the motor is used for driving the propeller to rotate. Compared with the prior art, the convection enhancement device is additionally arranged, the flow speed and disturbance degree of the smoke flowing into the smoke pipeline are increased, so that the convection heat exchange coefficient is increased, the heat exchange efficiency is improved, heat transfer of the smoke is more effective, the waste heat utilization rate of the gas turbine is increased, fuel can be saved, and energy shortage is relieved.
Description
technical field [0001] The invention relates to the technical field of gas turbine combined cycle, in particular to a gas turbine waste heat utilization system. Background technique [0002] Gas turbine combined cycle refers to a power generation method that combines a gas turbine and a steam turbine, and is mainly composed of three parts: a gas turbine, a waste heat boiler, and a steam turbine. The working principle is that the compressor inhales and compresses the air and sends it into the combustion chamber, so that the fuel (oil or natural gas) is burned in the combustion chamber to produce high-temperature and high-pressure gas, which enters the gas turbine to expand and generate power, and then the gas discharged from the gas turbine is introduced into the waste heat boiler as a waste heat boiler The heat source is to use the steam generated by the waste heat boiler to enter the steam turbine to generate electricity. In this way, a combined cycle power generation syst...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F02C7/00F02C7/08F01K11/02F01K23/10F04D25/06F23L15/00
CPCF02C7/00F02C7/08F01K11/02F01K23/10F04D25/06F23L15/00Y02E20/34
Inventor 姜未汀李子涵杜宇凡倪璐阳赵亚政井泓澎
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER