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A retractable ignition nozzle

A telescopic, nozzle technology, used in machines/engines, jet propulsion devices, gas turbine devices, etc., can solve the problems of high pressure and high temperature working environment of nozzle components, and achieve the effect of ensuring sliding sealing and improving reliability.

Active Publication Date: 2021-05-25
天津航空机电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to meet the characteristic requirements of high energy and long life of the gas turbine ignition system, the present invention proposes a retractable ignition nozzle, which can fundamentally solve the problem that the nozzle parts are in a high-voltage and high-temperature working environment for a long time, thereby improving the ignition power. Mouth reliability

Method used

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  • A retractable ignition nozzle

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Embodiment Construction

[0013] The technical solution created by the present invention is described in detail in conjunction with the accompanying drawings and specific embodiments.

[0014] like figure 1 As shown, a retractable ignition nozzle includes a nozzle assembly 1, a front flange 2, a rear flange 3, a cylinder 4, a spring 5, a limit washer 6, a step seal 7, a sealing ring a8, Seal ring b9, seal ring c10, flat washer 11, spring washer 12, nut 13, stud 14 and seal sleeve 15.

[0015] After the nozzle assembly 1 is threaded with the sealing sleeve 15, it is fixed in the cylinder 4 through the front flange 2 and the rear flange 3; the spring 5 is located in the installation groove of the front flange 2 and the sealing sleeve 15, and the front The flange 2 and the rear flange 3 are fastened by studs 14, flat washers 11, spring washers 12, and nuts 13; limit washers 6, step seals 7, and sealing ring a8 are placed in the sealing groove in the sealing sleeve 15 ; The sealing ring b9 is placed in t...

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Abstract

The invention belongs to the field of gas turbine ignition systems, and specifically designs a retractable ignition nozzle. Including nozzle assembly, front flange, rear flange, cylinder, spring, limit washer, step seal, sealing ring and sealing sleeve. The retractable ignition electric nozzle of the present invention can provide ignition when the gas turbine is unloaded, and can be supplied with pressure by an air pump under high pressure and high temperature conditions, and the electric nozzle parts can be inserted into the combustion chamber to ignite again. It can fundamentally solve the problem that the electric nozzle parts are in a high-voltage and high-temperature working environment for a long time, thereby improving the reliability of the ignition electric nozzle.

Description

technical field [0001] The invention belongs to the field of gas turbine ignition systems, and in particular relates to a retractable ignition nozzle. Background technique [0002] The ignition system product is an important part of the gas turbine, in which the ignition nozzle is used to convert the high-voltage pulse electricity generated by the ignition device into an electric spark to ignite the fuel in the combustion chamber. The ignition nozzle is generally installed on the casing of the combustion chamber, and the front end of the ignition nozzle is in the combustion chamber. Therefore, the ignition nozzle is in a high-temperature and high-pressure working state for a long time, which seriously affects the product performance and life. Block damage, ignition voltage increase and airtight failure, etc. Contents of the invention [0003] In order to meet the characteristic requirements of high energy and long life of the gas turbine ignition system, the present inven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02C7/266
CPCF02C7/266
Inventor 郜欣欣赵军王吉停张健董小丰
Owner 天津航空机电有限公司
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