Unlock instant, AI-driven research and patent intelligence for your innovation.

Combined multi-channel diffuser of gas turbine and diffusion air inlet structure of combined multi-channel diffuser

A gas turbine and air intake structure technology, which is applied in the combustion chamber, combustion method, combustion equipment, etc., can solve the problems of air pressure deceleration performance and the overall length cannot be taken into account, and achieve the effect of improving the diffusion efficiency

Active Publication Date: 2022-04-01
成都中科翼能科技有限公司
View PDF18 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the air pressure deceleration performance and the overall length of the diffuser structure of the existing gas turbine cannot be balanced, this scheme provides a combined multi-channel diffuser and its diffuser intake structure for the gas turbine

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Combined multi-channel diffuser of gas turbine and diffusion air inlet structure of combined multi-channel diffuser
  • Combined multi-channel diffuser of gas turbine and diffusion air inlet structure of combined multi-channel diffuser

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as Figure 1 to Figure 2 As shown, this embodiment designs a gas turbine diffuser intake structure, which is used to diffuse and decelerate the air entering the combustion chamber casing 3 of the gas turbine.

[0034]With the development of the gas turbine engine structure, its speed is getting faster and faster, making the airflow velocity at the outlet of the compressor inside the gas turbine very high, and when such a high-speed airflow enters the combustion chamber of the gas turbine, it will be Affects ignition and combustion in the combustion chamber. Therefore, a corresponding diffuser structure is designed to diffuse and decelerate the air entering the combustion chamber to ensure that the air flow velocity will generally be reduced to five times the airflow velocity at the compressor outlet before the airflow reaches the combustion chamber for combustion. About one-fifth, and form a stable outlet flow field, so as to ensure the stable combustion of the co...

Embodiment 2

[0046] Such as Figure 1 to Figure 2 As shown, the present embodiment designs a combined multi-channel diffuser of a gas turbine, and the combined multi-channel diffuser is installed on the combustor case 3 of the gas turbine, as figure 1 shown.

[0047] Structures such as a flame tube 4 and a fairing 6 are arranged in the combustion chamber casing 3. The flame tube 4 is an annular groove structure as a whole, and the bottom of the flame tube 4 is used for installing a premixer 5. And the notch of flame tube 4 is the outlet of flame tube 4; Fairing cover 6 cover is arranged on the outside of described flame tube 4, and is formed with the outer cylinder wall cooling channel 41 that is used to cool flame tube 4 tube walls between the two; The fairing 6 is provided with a ventilation hole 61 .

[0048] The combined multi-channel diffuser in this embodiment includes a diffuser outer ring 31, a diffuser inner ring 32, a flow divider 33 and the diffuser intake structure in Embodim...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of gas turbines, and particularly relates to a combined multi-channel diffuser of a gas turbine and a diffusion air inlet structure of the combined multi-channel diffuser, the combined multi-channel diffuser is used for carrying out diffusion speed reduction on air entering a combustion chamber casing of the gas turbine, and the combined multi-channel diffuser comprises a front diffusion channel and a sudden expansion diffusion channel; an air inlet is formed in the annular inner side of the combustion chamber casing, and a flame tube is mounted in the combustion chamber casing; the front diffusion channel comprises a plurality of flow dividing channels and is arranged at the air inlet so as to conduct flow dividing and diffusion on air entering from the air inlet. The sudden expansion diffusion channel is arranged in the combustion chamber casing and can guide air to the annular inner side and the annular outer side of the flame tube; and the sudden diffusion channel is communicated with the front diffusion channel and diffuses the air sent out by the front diffusion channel again. By means of the combined diffusion structure, the diffusion and speed reduction effect of air in a short distance range is improved, and it is guaranteed that high-speed airflow introduced from an outlet of the air compressor can evenly and stably enter the combustion chamber to be combusted.

Description

technical field [0001] The invention belongs to the technical field of gas turbines, and in particular relates to a combined multi-channel diffuser of a gas turbine and a diffuser intake structure thereof. Background technique [0002] A gas turbine is a gas turbine engine. It is an internal combustion power machine that converts the energy of gas into useful work. It is widely used in many fields, such as: in the field of civil power generation or as a power plant in aircraft or large ships. middle. The working process of the gas turbine is: the compressor continuously inhales air from the atmosphere and compresses the air; the compressed air enters the combustion chamber, mixes with the gas injected into the combustion chamber and burns, and then becomes high-temperature gas, and then the high-temperature gas flows into the combustion chamber It expands to the gas turbine to do work, and uses high-temperature gas to drive the turbine to rotate with the compressor; the gas...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F23R3/26F23R3/42
CPCY02T50/60
Inventor 杨治王鸣范珍涔刘宝琪王少波陈柳君代茂林王梁丞王龙刘印
Owner 成都中科翼能科技有限公司