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A Radial Injection Device of Replaceable Ignition Flame Used at High Temperature

An injection device and flame injection technology, which is applied in the fields of ignition and combustion, civil use, and aerospace, can solve the problems of insufficient ignition flame injection capability and difficult replacement, and achieve the effects of improving ignition reliability, favorable diffusion combustion, and shortening ignition delay

Active Publication Date: 2019-04-09
BEIJING AEROSPACE PROPULSION INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, to propose a replaceable ignition flame radial injection device for high temperature use, to solve the problem of insufficient ignition flame injection capability, and to enhance the energy transmission of the flame to the fuel by changing the flame injection angle, So as to shorten the ignition delay and improve the ignition reliability
At the same time, the connection method is designed as threaded connection + cross groove structure, which solves the problem that the device is not easy to replace due to ablation under high temperature environment

Method used

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  • A Radial Injection Device of Replaceable Ignition Flame Used at High Temperature
  • A Radial Injection Device of Replaceable Ignition Flame Used at High Temperature

Examples

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Effect test

Embodiment Construction

[0010] Such as figure 1 , 2 As shown, a replaceable ignition flame radial injection device for high temperature use includes a flame injection hole 1, a connecting thread 2, a cross groove 3, and an installation process hole 4; the device communicates with the external The device is connected, and the interior of the same axial position as the connecting thread 2 is a cross groove 3, and a flame injection hole 1 is provided near the exit of the device; a process hole 4 is installed outside the exit; before the test, insert the installation process hole 4 through a tool And install the device in related devices through the connecting thread 2. During the test, the flame enters from the entrance and sprays flames around through the flame injection hole 3. After the test, the device can be disassembled by inserting the cross groove through the tooling. The flame injection holes 1 are radially distributed, and the number is 6.

[0011] The ignition flame is injected outward thro...

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Abstract

The invention discloses a replaceable ignition flame radial injection device used at a high temperature. The device comprises flame injection holes (1), a connection thread (2), a cross-shaped groove (3) and an installation auxiliary hole (4). The device is connected with an external device through the connection thread (2) arranged on the surface at the position of an inlet. The cross-shaped groove (3) is formed in the axial position the same as that of the connection thread (2). The flame injection holes (1) are formed near the outlet of the device. The auxiliary hole (4) is formed in the outer portion of the position of the outlet. Before an experiment, a tool is inserted into the installation auxiliary hole (4) and the device is installed in a relevant device through the connection thread (2); in the process of the experiment, flames enter the device from an inlet and are injected around through the flame injection holes (1); and after the experiment, the tool can be inserted into the cross-shaped groove to demount the device.

Description

technical field [0001] The invention belongs to the field of aerospace, civil, ignition and combustion technologies, and in particular relates to a replaceable ignition flame radial injection device for high temperature use. Background technique [0002] Ignition flame injection devices are widely used in aerospace, civil, ignition and combustion technology fields, such as devices connected to fuel (or propellant) downstream of the ignition device. Most of the flame injection devices downstream of the existing ignition device adopt a single-strand flame diffusion tube structure or a double-exit hole structure. Due to structural limitations, the flame injection direction of the single-strand flame injection device is generally parallel to the fuel (or propellant) injection direction. The angle between the injection direction of the double outlet flame injection device and the direction of the fuel jet is small, generally not more than 30 degrees, which is not conducive to the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23Q13/00
CPCF23Q13/00
Inventor 田原王仙孙纪国李丹琳刘红珍
Owner BEIJING AEROSPACE PROPULSION INST
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