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Low-noise efficient gas turbine exhaust system

A technology for gas turbines and exhaust systems, applied in mechanical equipment, engine components, engine functions, etc., to achieve the effect of reducing noise, reducing noise, and uniform impact

Active Publication Date: 2018-10-02
江苏华强新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by this invention is how to reduce the noise generated when the exhaust system exhausts

Method used

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Embodiment

[0025] Embodiment: a kind of low-noise high-efficiency gas turbine exhaust system, such as figure 1 and 2 As shown, it includes an exhaust pipe. The exhaust pipe includes an outer pipe 1 and an inner pipe 2. The inner pipe 2 communicates with the exhaust outlet 3 of the gas turbine. The exhaust gas from the gas turbine is discharged through the inner pipe 2. The inner pipe 2 is provided with a A slow-flow device for diverting and buffering exhaust gas to reduce noise from the root. There is a sound-absorbing layer 11 between the outer pipe 1 and the inner pipe 2. The sound-absorbing layer 11 is made of foamed aluminum fiber, and the foamed aluminum fiber The porosity is 65%~75%, which is used to absorb noise, and the combination of the two can greatly reduce noise.

[0026] Such as figure 2 As shown, the slow flow device includes a fixed rod 4 arranged in the middle of the inner tube 2, and several buffer pieces are arranged on the fixed rod 4. Hole 411, the inside of the ...

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Abstract

The invention discloses a low-noise efficient gas turbine exhaust system, and relates to the technical field of gas turbine exhaust systems. A sound absorption layer is arranged between an outer pipeand an inner pipe. A slow flow device comprises a fixing rod arranged in the middle of the inner pipe, and multiple buffer parts are arranged on the fixing rod. The buffer parts comprise multiple arc-shaped buffer pieces, one ends of the arc-shaped buffer pieces are fixedly connected with the fixing rod, the other ends of the arc-shaped buffer pieces are away from the fixing rod, the outer sides of the arc-shaped buffer pieces are close to the fixing rod, the distances between the buffer parts are gradually increased from the ends close to an exhaust outlet to the other ends, and the widths ofthe arc-shaped buffer pieces are gradually increased from the ends close to the exhaust outlet to the other ends. A first sound reflecting layer is arranged on the inner wall of the outer pipe, and comprises multiple sequentially-connected arc-shaped sound reflecting pieces, and the inner sides of the sound reflecting pieces are arranged towards the middle of the inner pipe. Generation of noise is restrained from the source, the noise is absorbed externally, the noise is greatly lowered on the two aspects, and the influences of the noise on the environment are retarded.

Description

technical field [0001] The invention relates to the technical field of gas turbine exhaust systems, in particular to a low-noise and high-efficiency gas turbine exhaust system. Background technique [0002] During the working process of the gas turbine, a large amount of exhaust gas will be generated by combustion. The main component of the exhaust gas is carbon dioxide. In order to avoid the impact of the exhaust gas on the subsequent combustion of the combustion chamber of the gas turbine, the exhaust gas needs to be discharged quickly. Due to the large amount of exhaust gas discharged, large noise is often generated when exhausting, which affects the environment. Contents of the invention [0003] The technical problem to be solved by the invention is how to reduce the noise generated when the exhaust system exhausts. [0004] In order to solve the above technical problems, the present invention provides a low-noise and high-efficiency gas turbine exhaust system, which...

Claims

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Application Information

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IPC IPC(8): F01D25/30F01D25/08C22C37/06C22C38/36C22C38/24C22C38/22C22C38/28C22C38/06
CPCC22C37/06C22C38/001C22C38/005C22C38/06C22C38/22C22C38/24C22C38/28C22C38/36F01D25/005F01D25/08F01D25/30F05D2260/96
Inventor 冷祥珠王伟
Owner 江苏华强新能源科技有限公司
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