Rectifier of gas turbine

A gas turbine and rectifier technology, applied in the combustion chamber, combustion method, combustion equipment and other directions, can solve the problems of large air flow loss, small effective area, affecting the performance of the whole gas turbine, etc., to reduce flow loss, large effective area and occupation. small space effect

Active Publication Date: 2018-01-23
CHINA UNITED GAS TURBINE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this structure requires the air entering the nozzle to completely pass through the rectification orifice, and the effective area of ​​the rectification orifice is relatively small, and the loss of air flow is large, which affects the performance of the gas turbine.

Method used

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Examples

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Effect test

Embodiment Construction

[0022] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0023] Such as Figure 1-2 As shown, the rectifier of a gas turbine according to an embodiment of the present invention is installed on a fuel nozzle 100 including a central body 1 and a shroud 2 . The rectifier includes a shroud, an end plate 3 and a guide tube 4 . It can be understood that the shroud of the rectifier can be the shroud 2 of the fuel nozzle 100 in the above embodiment, or a part of the shroud 2 , or be independent of the shroud 2 and suitable for being connected with the shroud 2 A sleeve.

[0024] In the following description, the rectifier shroud is the shroud 2 of the fuel nozzle 100 , and its reference numerals are the same as the shroud o...

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PUM

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Abstract

The invention discloses a rectifier of a gas turbine. The rectifier comprises a sleeve cover, an end plate and a flow guide cylinder; the sleeve cover is provided with a first end and a second end, and air inlet groove holes are formed in the sleeve cover; the end plate is provided with a center hole, the end plate is installed at the first end of the sleeve cover, an imaginary column body is formed by extending the center hole in the direction towards the second end of the sleeve cover, and an annular channel is formed between the sleeve cover and the column body; and a plurality of holes areformed in the flow guide cylinder, the flow guide cylinder is located in the annular channel, and the flow guide cylinder is arranged on the column body in a sleeving mode and is separated from the column body and the sleeve cover. According to the rectifier of the gas turbine, the effective area is large, air uniformity can be conveniently adjusted so that loss of air flow can be reduced, and overall performance of the whole gas turbine can be improved.

Description

technical field [0001] The invention relates to the technical field of gas turbines, in particular to a rectifier of a gas turbine. Background technique [0002] In the gas turbine, the air is compressed into high-pressure air by the compressor, enters the combustion chamber from the diffuser, enters the nozzle at the head of the combustion chamber after being turned, mixes with fuel in the nozzle, and then enters the flame tube for combustion. However, the high-pressure air turns at the head of the combustion chamber, which will lose a large flow pressure and flow unevenly. Most of the air flows to the center of the nozzle. Air uniformity, which in turn affects the mixing of air and fuel inside the nozzle, increasing pollutant emissions and the risk of flashback. [0003] In the related technology, a rectification orifice plate is provided at the front end of the nozzle, and a guide tube is provided inside the rectification orifice plate, and the guide tube guides the airf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23R3/16F23R3/26
Inventor 李珊珊杨旭吕煊刘小龙
Owner CHINA UNITED GAS TURBINE TECH CO LTD
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