CN216725592U - Aviation flame suppressor based on flat plate slit - Google Patents
Aviation flame suppressor based on flat plate slit Download PDFInfo
- Publication number
- CN216725592U CN216725592U CN202220418352.9U CN202220418352U CN216725592U CN 216725592 U CN216725592 U CN 216725592U CN 202220418352 U CN202220418352 U CN 202220418352U CN 216725592 U CN216725592 U CN 216725592U
- Authority
- CN
- China
- Prior art keywords
- flat plate
- slit
- shell
- side flange
- expansion cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000003063 flame retardant Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 description 5
- 238000005273 aeration Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model relates to the field of aviation safety, in particular to an aviation flame suppressor based on a flat slit, which comprises a shell, an expansion cavity, a protected side flange and a non-protected side flange, wherein the shell is formed by sequentially connecting a shell, the protected side flange and the non-protected side flange are respectively arranged at two ends of the shell, a circular flat plate in the expansion cavity is installed through fixing bolts, a slit is formed between two sides of the circular flat plate and the inner side wall of the expansion cavity, and the height of the slit is adjustable. The utility model adopts the slits formed by the circular flat plate and the inner wall of the expansion cavity to replace the traditional honeycomb regular hexagon slit fire retardant core, has simple process and low cost, and is beneficial to improving the production efficiency.
Description
Technical Field
The utility model relates to the field of aviation safety, in particular to an aviation flame suppressor based on a flat plate slit.
Background
The fuel system of the aviation military aircraft is communicated with the outside atmosphere, so that the mixture of fuel vapor and air is easy to generate explosion accidents under external accidental ignition such as lightning, high-temperature roasting of the bottom surface and the like, thereby causing fuel pipeline failure, influencing the normal operation of other airborne equipment and causing casualties in severe cases. In recent years, on-board tank flame suppressors have been widely used in fuel systems for aircraft.
The flame inhibitor can ensure the ventilation of the fuel pipeline and isolate the flame outside the pipeline, thereby achieving the purpose of inhibiting the flame propagation. The core component of the flame suppressor which is widely applied at present is a fire retardant core with a regular hexagonal slit, and the flame is quenched through the cold wall effect of the regular hexagonal slit. The fire retardant core containing the regular hexagonal slit has the disadvantages of complex manufacturing process and high manufacturing cost, and the flow resistance is increased when the size of the slit is smaller, so that the flow of gas in a gas pipe is not facilitated. Based on this, a new flame suppressor with high efficiency and low cost needs to be developed.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides the aviation flame suppressor based on the flat plate slit, the slit formed by the circular flat plate and the inner wall of the expansion cavity is adopted to replace the traditional honeycomb regular hexagon slit fire retardant core, the manufacturing process is extremely simple, the manufacturing cost is low, and the improvement of the production efficiency is facilitated.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the utility model provides an aviation flame arrester based on dull and stereotyped slit, includes the casing that comprises shell, expansion chamber, shell connect gradually, sets up respectively at the circular flat board of protected side flange and non-protection side flange, through fixing bolt installation expansion intracavity at casing both ends, forms the slit between circular flat board both sides and the expansion intracavity lateral wall, and the slit height-adjustable is adjustable.
Furthermore, the diameter of the circular flat plate and the inner diameter of the expansion cavity can be adjusted according to the application place and the functional requirements of the flame suppressor
Furthermore, the round flat plate is made of low-density aluminum alloy with good heat conductivity, so that the weight of the suppressor can be reduced.
Furthermore, the circular flat plate is horizontally arranged in the expansion cavity through a fixing bolt, and the fixing bolt penetrates through the circular flat plate and is fixedly connected with the bottom surface of the expansion cavity through threads.
The utility model has the following beneficial effects:
1) the slit formed by the circular flat plate and the inner wall of the expansion cavity is adopted to replace the traditional honeycomb regular hexagon slit fire retardant core, the process is simple, the cost is low, and the production efficiency is favorably improved.
2) The round flat plate is made of low-density aluminum alloy and is small in thickness, and the weight of the flame suppressor can be effectively reduced.
3) The inner diameter of the expansion cavity, the diameter of the circular flat plate and the height of the slit can be adjusted, and the application range of the flame suppressor is widened.
Drawings
FIG. 1 is a schematic structural diagram of an aviation flame arrester based on a flat plate slit according to an embodiment of the utility model.
FIG. 2 is a perspective view of a flat slot based aviation flame arrester according to an embodiment of the utility model.
FIG. 3 is a schematic view of the aeration of a flat-plate slit-based aviation flame arrester according to an embodiment of the utility model.
In the figure: 1-protected side flange; 2-a housing; 3-expanding the cavity; 4-round flat plate; 5-fixing the bolt; 6-a slit; 7-unprotected side flanges.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
As shown in fig. 1-3, an aviation flame arrester based on a flat slit according to an embodiment of the present invention includes a housing formed by sequentially connecting a housing 2, an expansion chamber 3, and a housing 2, a protected side flange 1 and a non-protected side flange 7 respectively disposed at two ends of the housing, and a circular flat plate 4 horizontally installed in the expansion chamber 3 through a fixing bolt 5, wherein the circular flat plate 4 is made of a low-density aluminum alloy with good heat conductivity, so that the weight of the arrester can be reduced, the fixing bolt 5 penetrates through the circular flat plate 4 and is fixedly connected with a bottom surface of the expansion chamber 3 through a thread, a slit 6 is formed between two sides of the circular flat plate 4 and an inner side wall of the expansion chamber 3, the height of the slit 6 is adjustable, and the diameter of the circular flat plate 4 and the inner diameter of the expansion chamber 3 can be adjusted according to the application place and the functional requirements of the flame arrester.
In the embodiment, the synchronous situation of the protected side and the non-protected side of the aviation flame arrester is 50mm, the length of the single-side shell is 40mm, the length of the expansion cavity is 20mm, the inner diameter is 90mm, namely the expansion ratio is 1.8, the diameter of the circular flat plate 4 is 85mm, and the height of the slit 6 is 0.5 mm.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides an aviation flame arrester based on flat plate slit which characterized in that: including by shell (2), expansion chamber (3), shell (2) connect gradually the casing that constitutes, set up respectively at the casing both ends by protection side flange (1) and non-protection side flange (7), through round flat board (4) in fixing bolt (5) installation expansion chamber (3), form slit (6) between round flat board (4) both sides and expansion chamber (3) inside wall, slit (6) height-adjustable festival.
2. A flat slot-based aviation flame arrestor as recited in claim 1, wherein: the diameter of the circular flat plate (4) and the inner diameter of the expansion cavity (3) can be adjusted according to the application place and the functional requirements of the flame suppressor.
3. A flat slot-based aviation flame arrestor as recited in claim 1, wherein: the round flat plate (4) is made of low-density aluminum alloy with good heat conductivity.
4. A flat slot-based aviation flame arrestor as recited in claim 1, wherein: the round flat plate (4) is horizontally arranged in the expansion cavity (3) through a fixing bolt (5), and the fixing bolt (5) penetrates through the round flat plate (4) and is fixedly connected with the bottom surface of the expansion cavity (3) through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220418352.9U CN216725592U (en) | 2022-02-28 | 2022-02-28 | Aviation flame suppressor based on flat plate slit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220418352.9U CN216725592U (en) | 2022-02-28 | 2022-02-28 | Aviation flame suppressor based on flat plate slit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216725592U true CN216725592U (en) | 2022-06-14 |
Family
ID=81919809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220418352.9U Expired - Fee Related CN216725592U (en) | 2022-02-28 | 2022-02-28 | Aviation flame suppressor based on flat plate slit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216725592U (en) |
-
2022
- 2022-02-28 CN CN202220418352.9U patent/CN216725592U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220614 |