Grooved ring type treatment casing structure of gas compressor of ship gas turbine
A technology for processing casings and gas turbines, which is applied in the direction of machines/engines, liquid fuel engines, mechanical equipment, etc., can solve problems such as stability in low working conditions, and achieve the effects of meeting design indicators, improving flow, and reducing low-speed areas
Pending Publication Date: 2021-09-21
中国船舶重工集团公司第七0三研究所
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Problems solved by technology
[0004] The purpose of the present invention is to provide a marine gas turbine compressor with a grooved ring type processing casing structure in order to solve the problem of stability in low working conditions when the gas turbine compressor is in use.
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[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0017] refer to figure 1 , a marine gas turbine compressor grooved ring processing casing structure, including processing casing casing 1, grooved ring 2, screws 3 and lock washers 4. The processing casing shell 1 is connected with the grooved ring 2 through screws 3 and locking washers 4 .
[0018] refer to figure 2 and image 3 , The casing of the processing casing is composed of an outer wall 11, an annular rib 12, a reinforcing rib 13 and a reinforcing rib 14. The annular rib 12 is welded to the outer wall 11, and divides the casing of the processing casing into two parts: an intake chamber and an exhaust chamber. In order to strengthen the structural strength, the circumferential uniform reinforcement ribs are welded in the intake chamber and the exhaust chamber, and the angular distribution is as follows: image 3 shown. ...
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The invention provides a grooved ring type treatment casing structure of a gas compressor of a ship gas turbine. The grooved ring type treatment casing structure is characterized in that a casing of the treatment casing is connected with a grooved ring through a screw to form a main body structure of the grooved ring type treatment casing; secondly, an annular rib divides the casing of the treatment casing into an air inlet chamber and an exhaust chamber, wherein the annular rib is connected with the casing of the treatment casing in a welding mode; reinforcing ribs which are evenly distributed in the circumferential direction are welded in the air inlet cavity and the exhaust cavity to guarantee the strength of the whole structure; then, the four important structural parameters of the grooved ring are determined by the design method of the grooved ring type treatment casing of the gas compressor of the ship gas turbine; finally, the grooved ring type treatment casing adopts a split-half structure, so that treatment casings with different structural forms can be quickly replaced and mounted on the gas compressor test bed; and meanwhile, the structure is not limited to a ship gas turbine axial flow compressor, but also suitable for various industrial gas turbine axial flow compressors with treatment casing and aero-engine axial flow compressors.
Description
technical field [0001] The invention relates to a marine gas turbine compressor with a slotted annular processing casing structure, which belongs to the design and processing industry of gas turbines. Background technique [0002] As one of the three most important core components of a marine gas turbine, the technical performance and reliability of the compressor directly affect the realization of the safety, technical indicators and economic indicators of the marine gas turbine. In order to meet the requirements of the ship's navigation process, the ship's gas turbine should not only ensure the performance of the design point, but also pay special attention to the margin and efficient operation under low working conditions. The operating characteristics under such a wide range of variable working conditions make the stability of gas turbines in low working conditions very prominent when they are used as propulsion or power generation in ship power systems, and often become...
Claims
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Login to View More IPC IPC(8): F04D29/52F04D29/66
CPCF04D29/522F04D29/667
Inventor 张舟金鹏王琦洪青松王廷万新超张亮
Owner 中国船舶重工集团公司第七0三研究所