CN201631953U - A fixed fire extinguishing system for an aircraft engine compartment - Google Patents
A fixed fire extinguishing system for an aircraft engine compartment Download PDFInfo
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- CN201631953U CN201631953U CN2010201208945U CN201020120894U CN201631953U CN 201631953 U CN201631953 U CN 201631953U CN 2010201208945 U CN2010201208945 U CN 2010201208945U CN 201020120894 U CN201020120894 U CN 201020120894U CN 201631953 U CN201631953 U CN 201631953U
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Abstract
本实用新型涉及一种用于飞机发动机舱内的固定式灭火系统，该灭火系统包括固定式灭火瓶、输送管及灭火喷嘴。固定式灭火瓶通过三通单向活门和输送管连接，输送管末端连接灭火喷嘴，灭火喷嘴为中空腔体，中空腔体上均布有喷射孔。本实用新型能够对从固定式灭火瓶中喷射出的灭火剂进行充分雾化，结构简单，综合效率高，安装方便，便于维护。
The utility model relates to a fixed fire extinguishing system used in an aircraft engine compartment. The fire extinguishing system comprises a fixed fire extinguishing bottle, a delivery pipe and a fire extinguishing nozzle. The fixed fire extinguisher is connected to the conveying pipe through the three-way one-way valve, and the end of the conveying pipe is connected to the fire extinguishing nozzle, which is a hollow cavity with injection holes evenly distributed on the hollow cavity. The utility model can fully atomize the fire extinguishing agent sprayed from the fixed fire extinguishing bottle, has simple structure, high comprehensive efficiency, convenient installation and convenient maintenance.
Description
技术领域technical field
本实用新型涉及一种飞机固定式灭火系统，尤其是用于飞机发动机舱内的固定式灭火系统。The utility model relates to an aircraft fixed fire extinguishing system, in particular to a fixed fire extinguishing system used in the aircraft engine compartment.
背景技术Background technique
目前，用于飞机发动机舱的固定式灭火系统常用的是采取位于发动机上方布置环状的灭火喷射管路，管路上开设0.8mm的呈90°交叉分布的喷射孔，或采用在灭火喷射管路末端直接焊接支管进行灭火剂喷射。前一种结构的灭火喷孔导致灭火管路布置构型复杂，系统管路重量大，后一种结构的灭火喷嘴形式焊接工艺要求高。At present, the fixed fire extinguishing system used in the aircraft engine compartment is commonly used to arrange a ring-shaped fire extinguishing injection pipeline above the engine. 0.8mm spray holes distributed at 90° cross, or directly weld the branch pipe at the end of the fire extinguishing spray pipeline for fire extinguishing agent spray. The fire extinguishing orifice of the former structure leads to complex arrangement and configuration of the fire extinguishing pipeline, and the weight of the system pipeline is heavy, while the welding process of the fire extinguishing nozzle form of the latter structure requires high requirements.
发明内容Contents of the invention
本实用新型的目的是提供一种结构简单、拆卸方便、系统重量轻的飞机发动机舱内的固定式灭火系统。本实用新型的技术解决方案是，一种飞机发动机舱内的固定式灭火系统包括固定式灭火瓶、输送管及灭火喷嘴，固定式灭火瓶通过三通单向活门和输送管连接，输送管末端连接灭火喷嘴，灭火喷嘴为中空腔体、中空腔体上均布有喷射孔。The purpose of the utility model is to provide a fixed fire extinguishing system in the aircraft engine compartment with simple structure, convenient disassembly and light system weight. The technical solution of the utility model is that a fixed fire extinguishing system in an aircraft engine compartment includes a fixed fire extinguisher, a delivery pipe and a fire extinguishing nozzle, the fixed fire extinguisher is connected to the delivery pipe through a three-way one-way valve, and the end of the delivery pipe Connect the fire extinguishing nozzle, the fire extinguishing nozzle is a hollow cavity, and spray holes are evenly distributed on the hollow cavity.
喷射孔为锥度孔，锥度为60°到120°。The injection hole is a tapered hole with a taper of 60° to 120°.
本实用新型能够对从固定式灭火瓶中喷射出的灭火剂进行充分雾化，结构简单，系统重量轻，综合效率高，安装方便，便于维护。The utility model can fully atomize the fire extinguishing agent sprayed from the fixed fire extinguishing bottle, and has the advantages of simple structure, light system weight, high overall efficiency, convenient installation and maintenance.
附图说明Description of drawings
图1为本实用新型结构示意图，其中1：1号固定式灭火瓶；2：2号固定式灭火瓶；3：三通单向活门；4：灭火剂输送管路；5：三通管接头；6：1号灭火喷嘴；7：2号灭火喷嘴。Figure 1 is a structural schematic diagram of the utility model, wherein 1: No. 1 fixed fire extinguisher; 2: No. 2 fixed fire extinguisher; 3: Three-way one-way valve; 4: Fire extinguishing agent delivery pipeline; 5: Three-way pipe joint ; 6: No. 1 fire extinguishing nozzle; 7: No. 2 fire extinguishing nozzle.
图2为灭火喷嘴结构示意图，其中1：灭火剂输送管；2：外套螺母；3：灭火喷嘴；4：喷射孔；Fig. 2 is a structural schematic diagram of the fire extinguishing nozzle, wherein 1: fire extinguishing agent delivery pipe; 2: jacket nut; 3: fire extinguishing nozzle; 4: injection hole;
图3为图2灭火喷嘴结构A-A面剖视图，其中1：锥形喷射孔；2：灭火喷嘴内腔。Fig. 3 is a sectional view of plane A-A of the fire extinguishing nozzle structure in Fig. 2, wherein 1: a tapered injection hole; 2: the inner chamber of the fire extinguishing nozzle.
具体实施方式Detailed ways
下面结合附图说明本实用新型一较佳实施方式，请参阅附图1，该固定式灭火系统包括1号固定式灭火瓶1，2号固定式灭火瓶2，三通单向活门3，灭火剂输送管路4，三通管接头5，1号灭火喷嘴6，2号灭火喷嘴7，固定式灭火瓶通过三通单向活门3和灭火剂输送管4连接，灭火剂输送管末端连接灭火喷嘴，灭火喷嘴为中空腔体、中空腔体上均布有喷射孔，喷射孔的数量根据需要设置，本实施例设置为6个。A preferred embodiment of the present utility model is illustrated below in conjunction with accompanying drawings, please refer to accompanying
为了更好的实施本实用新型，喷射孔设为锥度孔，锥度α的范围为60°到120°之间。本实施例中，锥度α采用120°。In order to better implement the utility model, the injection hole is set as a tapered hole, and the range of the taper α is between 60° and 120°. In this embodiment, the taper α is 120°.
灭火喷嘴为中空腔体，连接螺纹用于将灭火喷嘴通过螺纹连接的形式安装到灭火剂喷射管路末端。灭火时，灭火剂通过灭火剂输送管路进入灭火喷嘴腔体，在灭火剂喷射压力的作用下，灭火剂通过截面上的喷射孔喷射到发动机舱。The fire extinguishing nozzle is a hollow cavity, and the connecting thread is used to install the fire extinguishing nozzle to the end of the fire extinguishing agent injection pipeline in the form of threaded connection. When extinguishing a fire, the fire extinguishing agent enters the fire extinguishing nozzle cavity through the fire extinguishing agent delivery pipeline, and under the action of the fire extinguishing agent injection pressure, the fire extinguishing agent is sprayed into the engine compartment through the injection holes on the section.
飞机发动机舱为二次喷射灭火，在管路连接中安装有三通单向活门，以防止当1号固定式灭火瓶喷射完后，发动机舱内火情还在或发生复燃时，启动2号固定式灭火瓶进行灭火时发生灭火剂倒流现象。当需要灭火时，通过飞机机组人员启动该灭火系统，使灭火剂在瓶体内氮气压力的作用下，沿着灭火剂输送管路，通过三通单向活门，经由灭火喷嘴，喷至发动机舱进行灭火。The engine compartment of the aircraft is used for secondary jet fire extinguishing, and a three-way one-way valve is installed in the pipeline connection to prevent the No. When the fixed fire extinguisher is used for fire extinguishing, the backflow of fire extinguishing agent occurs. When a fire needs to be extinguished, the fire extinguishing system is activated by the aircraft crew, so that the fire extinguishing agent is sprayed to the engine compartment through the fire extinguishing nozzle along the fire extinguishing agent delivery pipeline through the three-way one-way valve under the action of the nitrogen pressure in the bottle. Extinguishing.
本实用新型能够对从固定式灭火瓶中喷射出的灭火剂进行充分雾化，结构简单，重量较轻，综合效率高，安装方便，便于维护。The utility model can fully atomize the fire extinguishing agent sprayed from the fixed fire extinguishing bottle, and has the advantages of simple structure, light weight, high comprehensive efficiency, convenient installation and maintenance.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010201208945U CN201631953U (en) | 2010-03-02 | 2010-03-02 | A fixed fire extinguishing system for an aircraft engine compartment |
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| CN2010201208945U CN201631953U (en) | 2010-03-02 | 2010-03-02 | A fixed fire extinguishing system for an aircraft engine compartment |
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| CN2010201208945U Expired - Lifetime CN201631953U (en) | 2010-03-02 | 2010-03-02 | A fixed fire extinguishing system for an aircraft engine compartment |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580274A (en) * | 2012-01-18 | 2012-07-18 | 广州飞机维修工程有限公司 | Fire extinguishing agent automatic mixing device for airplane fire extinguisher bottle |
| CN103656926A (en) * | 2013-12-03 | 2014-03-26 | 天津航空机电有限公司 | Fire extinguishing nozzle for aircraft engine compartment |
| CN103968107A (en) * | 2014-05-05 | 2014-08-06 | 中国科学技术大学 | Switching control valve for state of aircraft cargo compartment fire extinguishing system |
| CN104941090A (en) * | 2014-03-26 | 2015-09-30 | 中航商用航空发动机有限责任公司 | Aircraft engine fire extinguishing system and aircraft engine fire extinguishing method |
| CN105251156A (en) * | 2015-11-12 | 2016-01-20 | 四川安产投资有限公司 | Fire extinguishing system and public transport means formed by fire extinguishing system |
| CN106032168A (en) * | 2015-03-13 | 2016-10-19 | 中航商用航空发动机有限责任公司 | Aircraft anti-icing and fire-extinguishing apparatus and method |
| CN109533348A (en) * | 2018-11-12 | 2019-03-29 | 中国直升机设计研究所 | A kind of fireproof fire-extinguishing control system for aircraft engine |
| CN110496332A (en) * | 2019-08-16 | 2019-11-26 | 中国商用飞机有限责任公司 | Fire extinguishing device and system for aircraft cabin |
| CN115105778A (en) * | 2021-03-23 | 2022-09-27 | 中国航发商用航空发动机有限责任公司 | Fire extinguishing agent spraying and atomizing device for core engine room of turbofan engine |
-
2010
- 2010-03-02 CN CN2010201208945U patent/CN201631953U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580274A (en) * | 2012-01-18 | 2012-07-18 | 广州飞机维修工程有限公司 | Fire extinguishing agent automatic mixing device for airplane fire extinguisher bottle |
| CN102580274B (en) * | 2012-01-18 | 2013-10-16 | 广州飞机维修工程有限公司 | Fire extinguishing agent automatic mixing device for airplane fire extinguisher bottle |
| CN103656926A (en) * | 2013-12-03 | 2014-03-26 | 天津航空机电有限公司 | Fire extinguishing nozzle for aircraft engine compartment |
| CN104941090A (en) * | 2014-03-26 | 2015-09-30 | 中航商用航空发动机有限责任公司 | Aircraft engine fire extinguishing system and aircraft engine fire extinguishing method |
| CN104941090B (en) * | 2014-03-26 | 2018-10-09 | 中国航发商用航空发动机有限责任公司 | Aero-engine fire extinguishing system and method |
| CN103968107A (en) * | 2014-05-05 | 2014-08-06 | 中国科学技术大学 | Switching control valve for state of aircraft cargo compartment fire extinguishing system |
| CN106032168A (en) * | 2015-03-13 | 2016-10-19 | 中航商用航空发动机有限责任公司 | Aircraft anti-icing and fire-extinguishing apparatus and method |
| CN105251156A (en) * | 2015-11-12 | 2016-01-20 | 四川安产投资有限公司 | Fire extinguishing system and public transport means formed by fire extinguishing system |
| CN109533348A (en) * | 2018-11-12 | 2019-03-29 | 中国直升机设计研究所 | A kind of fireproof fire-extinguishing control system for aircraft engine |
| CN110496332A (en) * | 2019-08-16 | 2019-11-26 | 中国商用飞机有限责任公司 | Fire extinguishing device and system for aircraft cabin |
| CN115105778A (en) * | 2021-03-23 | 2022-09-27 | 中国航发商用航空发动机有限责任公司 | Fire extinguishing agent spraying and atomizing device for core engine room of turbofan engine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20101117 |