Gas turbine heat regenerator with rotary body layout and heat exchange process thereof
A technology of gas turbines and regenerators, which is applied in the direction of gas turbine devices, machines/engines, mechanical equipment, etc., and can solve the problems of low flow resistance of gas and compressed air, thermal load, large thermal shock of thermal expansion, and high reliability requirements of regenerators , to achieve the effect of increasing heat dissipation capacity, high heat dissipation efficiency, and improving comprehensive heat dissipation capacity
Active Publication Date: 2015-01-21
高邮市荣清机械电子有限公司
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Problems solved by technology
[0005] There are three major difficulties in the design and manufacture of gas turbine regenerators: 1. The heat dissipation is relatively large, especially for large-scale ship gas turbines, and the heat dissipation of the regenerator reaches 20,000-30,000 kilowatts, or even higher; The flow resistance is small, generally only about 5% of its own pressure, especially the flow resistance on the gas side, which is only allowed to be about 5kPa; 3. The thermal load, thermal expansion, and thermal shock are large, and the reliability of the regenerator is high.
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[0028] The regenerator of the present invention includes a shell 1, and the high-temperature gas exported from the power turbine of the gas turbine passes through the gas diffuser 3 and the gas fairing 4 to jointly form a gas inlet cavity 5 for high-temperature gas, and flows into the heat exchange core 21 of the regenerator. , heat exchange with compressed air around 550K. The high-temperature gas passes through the heat exchange core 21 in the radial direction inside the regenerator, gathers to the center of the heat exchanger 2, and flows out of the regenerator from the gas outlet chamber 6 to the outside. The regenerator heat exchanger 2 is composed of a group of fan-shaped plate-fin heat exchange cores 21, which form the layout of a rotator together by connecting each other at fan-shaped angles. The heat exchange cores 21 are not directly connected, and are independent of each other, thereby avoiding mutual thermal stress caused by thermal expansion. Each regenerator hea...
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The invention relates to a gas turbine heat regenerator with a rotary body layout and a heat exchange process thereof. The gas turbine heat regenerator includes a housing (1), which is internally provided with a heat exchanger (2). The heat exchanger (2) consists of a set of fan shaped heat exchange core bodies (21), the heat exchange core bodies (21) are circumferentially arranged to form a ring body and independent to each other. Fixation support arms (22) and floating support arms (23) are disposed on both sides of the heat exchange core bodies (21). The high temperature flue gas and high pressure gas formed in the heat exchanger (2) form countercurrent channels. Through the rotary body layout, the gas turbine heat regenerator provided by the invention integrates over ten heat regenerator core bodies to increase the heat dissipation capability. A countercurrent mode is employ to arrange the flow channel of flue gas and compressed air so as to make the heat dissipation efficiency reach the highest. And according to difference of temperature, pressure and density on the flue gas side and the compressed air side, fin structures with different heights are employed to conduct optimization so as to improve the comprehensive heat dissipation ability of the heat regenerator.
Description
technical field [0001] The invention relates to a gas turbine regenerator with a rotary body layout, belonging to the technical field of heat exchangers. Background technique [0002] As the main power plant of ships, the gas turbine power plant has the advantages of small size, light weight, fast start-up, convenient operation and maintenance, and simple auxiliary equipment and systems. With the continuous improvement of the requirements of the shipbuilding industry for the main power device of the high-speed propulsion system of the ship, the gas turbine has the characteristics of large specific power, small size, light weight, good transmission performance, simple operation, convenient maintenance, low oil consumption and low water consumption. A series of advantages such as low noise are becoming more and more prominent. [0003] ICR-IntercoolingRecuperated gas turbine is a gas turbine with compressed air intercooler, exhaust gas regenerator and other components added o...
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IPC IPC(8): F02C7/10
Inventor 吴一鹏
Owner 高邮市荣清机械电子有限公司