CN107314725A - One kind becomes wall thickness composite anti-explosion structure - Google Patents
One kind becomes wall thickness composite anti-explosion structure Download PDFInfo
- Publication number
- CN107314725A CN107314725A CN201710483227.XA CN201710483227A CN107314725A CN 107314725 A CN107314725 A CN 107314725A CN 201710483227 A CN201710483227 A CN 201710483227A CN 107314725 A CN107314725 A CN 107314725A
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- Prior art keywords
- liquid level
- explosion
- wall thickness
- composite anti
- explosive
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- 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.)
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Links
- 238000004880 explosion Methods 0.000 title claims abstract description 27
- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 239000004964 aerogel Substances 0.000 claims abstract description 13
- 239000004744 fabric Substances 0.000 claims abstract description 9
- 230000008859 change Effects 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 claims abstract description 6
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 235000011187 glycerol Nutrition 0.000 claims description 4
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 3
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 238000003475 lamination Methods 0.000 claims 1
- 239000002360 explosive Substances 0.000 abstract description 26
- 238000013467 fragmentation Methods 0.000 abstract description 11
- 238000006062 fragmentation reaction Methods 0.000 abstract description 11
- 238000005474 detonation Methods 0.000 abstract description 5
- 238000009825 accumulation Methods 0.000 abstract description 2
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 230000001665 lethal effect Effects 0.000 abstract 1
- -1 polyethylene Polymers 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 230000035939 shock Effects 0.000 description 15
- 230000004224 protection Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 239000012634 fragment Substances 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 230000009979 protective mechanism Effects 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D5/00—Safety arrangements
- F42D5/04—Rendering explosive charges harmless, e.g. destroying ammunition; Rendering detonation of explosive charges harmless
- F42D5/045—Detonation-wave absorbing or damping means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Processing Of Solid Wastes (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
Become wall thickness composite anti-explosion structure the invention discloses one kind, belong to social public security field of explosion.Described change wall thickness composite anti-explosion structure is the internal rotary body into cavity, and structure includes liquid level, aerogel layer, fibrous layer from inside to outside.Liquid is entered in rubber bag by upper end liquid flowing valve, and thickness is gradually thinning from bottom to top for liquid level, and is constantly inwardly shunk, and there is 0 to 2 inwardly protruded break on bus；Aerogel layer and fibrous layer are contour and less than liquid level；Fibrous layer uses the fiber hybrid composite of aramid fiber woven cloth/superhigh molecular weight polyethylene fibers laminated cloth, and its lower end bypasses liquid level bottom.It is excellent novel, low from heavy and light, cost that the present invention becomes wall thickness composite anti-explosion structure, the explosion-protection equipment explosion-proof that is made based on this structure is reliable, substantially reduction explosive explosion wave, fragmentation and detonation product lethal effect, it can be applied to be isolated when some personnel accumulation regions such as ground point discovery such as subway station, station, mass market, market, supermarket fails to understand explosive and then quick properly safe disposal (failure is destroyed), to solve the problem that current reliable disposal explosive is faced.
Description
Technical field
Become wall thickness composite anti-explosion structure the present invention relates to one kind, belong to social public security field.
Background technology
Explosive terror attack, involving explosives criminal offense turn into one of chief threat of domestic and international social public security.Blast
Terrified because it has, action is hidden, it is simple to implement, injure the features such as scale is big, easily causes lasting, extensive society terrified
Psychology, it has also become current terrorist is the most frequently used, most common activity form.Therefore, it is timely and effective counterattack explosive terror attack,
It is one of problem that public safety department is faced to dispose all kinds of explosives.
Traditional explosive disposal plant mainly includes explosion-proof ball, anti-explosion tank (bucket) and explosion proof fence/blanket.Explosion-proof ball and anti-
Quick-fried tank (bucket) is made although the larger explosive of equivalent can be handled because main of metal alloy, and it is excessive to there is deadweight, no
Easily mobile the shortcomings of, the possibility that explosive has erroneous trigger need to be moved during disposal；When disposing the explosive that equivalent is failed to understand, exist
Because brisance is excessive and itself disintegrates and produces grave danger of more secondary fragments.Although explosion proof fence/blanket deadweight is relatively low, easily
Carry, but because being mainly made up of fibrous composite, the strong shock wave protective capacities produced to big equivalent explosive is weaker.Using
Flexible light-weight materials, such as liquid (water, glycerine), aeroge and high performance composites, design new type explosion proof structure, thus
A series of explosive disposal plants being made can avoid the shortcoming of conventional explosive disposal plant, take into account its advantage, possess safety
Protect that equivalent is high, it is low to conduct oneself with dignity and the advantages of without secondary injury.
Design reply explosive in blast novel protective structure need consider load include blast produce shock wave,
Fragmentation and high temperature detonation product.
The weakening ability of material shock wave depends on the wave impedance of material, and the wave impedance of the liquid such as water and glycerine is very
Height, possesses the shock wave suitable with concrete and weakens ability.Many researchs show, during shock liquid wall, big absolutely
Part shock wave is reflected back, and the shock strength for transmiting liquid wall is very low.With explosive be in contour liquid portion by
To impact wave load much stronger than the liquid portion being in higher than explosive, the liquid wall lower end liquid of equal thickness is easily by shock wave
Break and turn into protection breach, and the upper end liquid long period keeps completely and overprotection.Therefore, design liquid wall when for
High efficient protected and mitigation deadweight consideration, should be using the thin structure in the thick upper end in lower end.In addition, being exploded in using liquid wall protection
, it is necessary to consider the influence of impact wave diffraction water outlet wall being reflected back during the shock wave of generation.Around the shock wave tool for projecting liquid wall
There is higher impact crest value, surrounding people and equipment may be damaged.It is a kind of to reduce the side of diffracted blast waves intensity
Method is exactly the collision area for increasing liquid wall and shock wave, promotes both interactions, so as to reduce around injection liquid wall
Shock wave energy.Although the wave impedance of aeroge and fibrous composite is relatively low relative to liquid, it can be inhaled by self-deformation
Shock wave energy is received, delays shock wave to reach the time outside safeguard structure.
Liquid (such as water) produces very big resistance using self inertia to high speed fragments, can be declined in very short distance
Subtract Fragment Velocities.High performance composites can pass through itself large area deformation efficient capture low speed fragmentation.Interior liquid is outer fine
The combining structure of dimension is a kind of the reasonably combined of high efficient protected fragmentation.
In addition, liquid (such as water) can disintegrate under explosion condition, form countless liquid particles and possess huge ratio
Surface area, can efficiently absorb the heat of explosion product, reduce the temperature rise of surrounding.
The content of the invention
Become wall thickness composite anti-explosion structure it is an object of the present invention to provide one kind, can avoid because caused by explosive equivalent is excessive
Secondary additional injury；Take into full account protective mechanism uneven design on the one hand can be safe and reliable protection blast produce rush
A variety of threats such as ripple, fragmentation and detonation product are hit, own wt on the other hand can be largely reduced, improve machine when carrying
Dynamic property, and reduce financial cost.
The purpose of the present invention is achieved through the following technical solutions.
The a kind of of the present invention becomes wall thickness composite anti-explosion structure, to include the rotary body of cavity, from inside to outside including liquid level,
Aerogel layer, fibrous layer.Liquid level is enclosed in inside rubber bag using water or glycerine, is rushed by the liquid flowing valve on device top
Enter；It is characterized in that using the Varying-thickness structure that lower end is thick, upper end is thin, and from bottom to top gradually to contract, have 0 on bus
To 2 inwardly protruded breaks, and then improve the collision area of liquid level and shock wave；This structure can improve liquid level
Explosion protection ability while, mitigate dead load.Aerogel layer is surrounded on the peripheral the latter half of liquid level, further weakens
Blast impulse intensity of wave.Fibrous layer uses hybrid fiber cloth, it is characterised in that be respectively from inside to outside aramid fiber plain weave cloth and
The orthogonal cloth of ultra-high molecular weight polyethylene；Internal layer aramid fiber fusing point is higher, can still be protected under the detonation product effect of higher temperature
Hold efficiently fragmentation barrier propterty, the orthogonal cloth fusing point of outer layer ultra-high molecular weight polyethylene is relatively low, internal layer aramid fabric it is heat-insulated under
Good mechanical property can be kept, fragmentation is captured by large area deformation.Outer layer fiber layer is characterised by its upper end and airsetting
Glue-line is contour, and lower end bypasses aerogel layer and liquid level lower end, and aeroge periphery is adhesive in by resin；Upper end and aerogel layer
The fragment emission that contour design considers explosive generation is highly far below liquid layer height, and meeting, capture fragmentation demand is same
When can reduce financial cost, and simultaneously alleviator is conducted oneself with dignity；It is for reinforcing fiber lower end that lower end, which bypasses aerogel layer and liquid level lower end,
Constraint, it is to avoid because fibrous layer lower end too early upset away from structure and fail participate in fragmentation protection.
Beneficial effect
The a kind of of the present invention becomes wall thickness composite anti-explosion structure, and the excellent novel, financial cost of structure is low, can from heavy and light, effect
Lean on, highly versatile, the flexible explosion-proof case being made based on this class formation, explosion-proof bag and explosion-proof waterwall be safe, can be applied to
Some personnel accumulation regions such as station, subway station, market, market, supermarket etc. randomly point discovery explosive when, explosive is used
Explosion-protection equipment is isolated and fast and safely properly disposal (failure, destruction), solves the most disaster that current disposal explosive is faced
Topic.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of round platform deformation wall thickness composite anti-explosion structure of the present invention；
Fig. 2 becomes the schematic diagram of wall thickness composite anti-explosion structure for a kind of single convex conical flask shape of the present invention；
Fig. 3 is combined for a kind of applicable safe disposal 500g TNT equivalent explosives of the present invention based on round table-like change wall thickness
The model machine figure that blast resistance construction is made.
Fig. 4 is the unused of high-speed photography shooting or disposes procedure charts of the 500g with shell TNT powder charges using model machine in Fig. 3
In figure：1- liquid levels, 2- aerogel layers, 3- fibrous layers, 4- liquid flowing valves, 5- rubber strips, 6- are inwardly protruding, 7- is bright and beautiful
Synthetic fibre outer packaging, a- are not used the result of disposal plant, b- and use round table-like change wall thickness composite anti-explosion structure model machine shown in Fig. 3
As a result.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
A kind of round table-like change wall thickness suitable for safe disposal 500g TNT equivalent explosives of Fig. 3 display present invention is combined
Blast resistance construction model machine, externally visible is polyamide fibre outer packaging bag, and liquid level (water), aeroge shown in Fig. 1 are contained inside it
Layer and fibrous layer；Under liquid level structure composite it is thick it is thin, from bottom to top to contract, fibrous layer and aerogel layer are contour and are only
Device whole height half, fibrous layer lower end bypasses liquid level bottom and good bonding；Device is integrally conducted oneself with dignity for 70kg.
The explosive test of 500g TNT powder charges containing fragmentation is carried out to Fig. 3 model machines, and is entered with unguarded empty quick-fried experimental result
Row contrast.Fig. 4 shows the instant of detonation picture that high-speed photography is recorded under two kinds of operating modes, change wall thickness composite anti-explosion of the invention
Structure model machine inhibits the high-temperature gas product that blast is produced well, and obvious flame is not observed.Use the device of the present invention
Explosive is disposed, peak overpressure declines 90% at quick-fried heart 1.65m, reaches harmless level；Not it was observed that fragmentation is worn
The equivalent pine target plate of saturating human body.Therefore, a kind of wall thickness composite anti-explosion structure that becomes of the invention can safely and reliably dispose blast
Thing.
In summary, presently preferred embodiments of the present invention is these are only, is not intended to limit the scope of the present invention.
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in the present invention's
Within protection domain.
Claims (4)
1. one kind becomes wall thickness composite anti-explosion structure, to include the rotary body of cavity, structure includes liquid level successively from inside to outside
(1), aerogel layer (2) and fibrous layer (3)；Liquid level (1) is sealed in rubber bag (5) inside, the feed liquor by rubber bag (5) top
Valve (4) enters；Aerogel layer (2) is surrounded on the peripheral the latter half of liquid level (1)；Fibrous layer (3) and upper end and aerogel layer
(2) contour, lower end bypasses aerogel layer (2) and liquid level (1) lower end, and aeroge (2) and rubber strip (5) are adhesive in by resin
Periphery.
A kind of become wall thickness composite anti-explosion structure 2. according to claim 1, it is characterised in that liquid level using pure water or
Glycerine, fibrous layer uses the fiber hybrid composite lamination of aramid fiber woven cloth/ultrahigh molecular weight polyethylene weftless fabrics.
A kind of become wall thickness composite anti-explosion structure 3. according to claim 1, it is characterised in that liquid level using lower end it is thick, on
The thin Varying-thickness structure in end.
4. a kind of change wall thickness composite anti-explosion structure according to claim 1, it is characterised in that liquid level is continuous from bottom to top
To contract, 0 to 2 inwardly protruded break is included on bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710483227.XA CN107314725B (en) | 2017-06-23 | 2017-06-23 | Variable-wall-thickness composite explosion-proof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710483227.XA CN107314725B (en) | 2017-06-23 | 2017-06-23 | Variable-wall-thickness composite explosion-proof structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107314725A true CN107314725A (en) | 2017-11-03 |
| CN107314725B CN107314725B (en) | 2020-05-29 |
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| CN201710483227.XA Active CN107314725B (en) | 2017-06-23 | 2017-06-23 | Variable-wall-thickness composite explosion-proof structure |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108627062A (en) * | 2018-04-17 | 2018-10-09 | 北京理工大学 | A kind of contactless flexible explosion-proof method and contactless flexible explosion-proof device design method |
| CN109405695A (en) * | 2018-11-14 | 2019-03-01 | 北京理工大学 | A kind of inside and outside support elastic composite structures for flexible explosion-proof |
| CN111997001A (en) * | 2020-08-24 | 2020-11-27 | 郑州大学 | Device and method for protecting arch end of high arch dam against downstream aerial contact explosion |
| CN112113476A (en) * | 2020-09-22 | 2020-12-22 | 中国工程物理研究院化工材料研究所 | Composite protective layer and anti-explosion container |
| CN112161540A (en) * | 2020-02-06 | 2021-01-01 | 北京理工大学 | Hollow annular flexible explosion-proof structure and design method thereof |
| CN112179231A (en) * | 2020-06-15 | 2021-01-05 | 北京理工大学 | Protection equipment, system and method for destroying unexploded bombs/explosives |
| CN114234751A (en) * | 2021-11-12 | 2022-03-25 | 三门峡市天康成套设备有限责任公司 | Flexible explosion-proof tank with honeycomb structure and preparation method of composite explosion-proof structure |
| CN115352152A (en) * | 2022-03-03 | 2022-11-18 | 北京理工大学 | Ready-package anti-explosion bulletproof inflatable armor module and armor preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108627062A (en) * | 2018-04-17 | 2018-10-09 | 北京理工大学 | A kind of contactless flexible explosion-proof method and contactless flexible explosion-proof device design method |
| CN109405695B (en) * | 2018-11-14 | 2024-02-20 | 北京理工大学 | A inside and outside elastic composite structure that props for flexible explosion-proof |
| CN109405695A (en) * | 2018-11-14 | 2019-03-01 | 北京理工大学 | A kind of inside and outside support elastic composite structures for flexible explosion-proof |
| CN112161540A (en) * | 2020-02-06 | 2021-01-01 | 北京理工大学 | Hollow annular flexible explosion-proof structure and design method thereof |
| CN112161540B (en) * | 2020-02-06 | 2021-08-10 | 北京理工大学 | Hollow annular flexible explosion-proof structure and design method thereof |
| CN112179231A (en) * | 2020-06-15 | 2021-01-05 | 北京理工大学 | Protection equipment, system and method for destroying unexploded bombs/explosives |
| CN112179231B (en) * | 2020-06-15 | 2021-07-20 | 北京理工大学 | Explosive destruction protection equipment, system and method |
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| CN111997001A (en) * | 2020-08-24 | 2020-11-27 | 郑州大学 | Device and method for protecting arch end of high arch dam against downstream aerial contact explosion |
| CN112113476A (en) * | 2020-09-22 | 2020-12-22 | 中国工程物理研究院化工材料研究所 | Composite protective layer and anti-explosion container |
| CN112113476B (en) * | 2020-09-22 | 2022-07-26 | 中国工程物理研究院化工材料研究所 | Composite protective layer and anti-explosion container |
| CN114234751A (en) * | 2021-11-12 | 2022-03-25 | 三门峡市天康成套设备有限责任公司 | Flexible explosion-proof tank with honeycomb structure and preparation method of composite explosion-proof structure |
| CN115352152A (en) * | 2022-03-03 | 2022-11-18 | 北京理工大学 | Ready-package anti-explosion bulletproof inflatable armor module and armor preparation method |
| CN115352152B (en) * | 2022-03-03 | 2024-04-16 | 北京理工大学 | Quick-assembled explosion-proof bulletproof pneumatic armor module and armor preparation method |
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Denomination of invention: A composite explosion-proof structure with variable wall thickness Granted publication date: 20200529 Pledgee: Beijing Pufan Protection Technology Co.,Ltd. Pledgor: HUNAN AIER DEFENSE TECHNOLOGY Co.,Ltd.|Beijing Technology al Safety Technology Co.,Ltd. Registration number: Y2024990000222 |
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