CN114636361B - Soft fence type integrated explosion-proof blanket - Google Patents
Soft fence type integrated explosion-proof blanket Download PDFInfo
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- CN114636361B CN114636361B CN202210137955.6A CN202210137955A CN114636361B CN 114636361 B CN114636361 B CN 114636361B CN 202210137955 A CN202210137955 A CN 202210137955A CN 114636361 B CN114636361 B CN 114636361B
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- fireproof
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- 238000004880 explosion Methods 0.000 claims abstract description 52
- 230000035939 shock Effects 0.000 claims description 41
- 239000006260 foam Substances 0.000 claims description 37
- 239000002360 explosive Substances 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 239000000835 fiber Substances 0.000 claims description 18
- 239000004744 fabric Substances 0.000 claims description 15
- 239000006261 foam material Substances 0.000 claims description 9
- 238000011049 filling Methods 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims 1
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- 238000000034 method Methods 0.000 abstract description 7
- 208000014674 injury Diseases 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 13
- 230000009471 action Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 11
- 238000004804 winding Methods 0.000 description 11
- 239000012634 fragment Substances 0.000 description 10
- 239000004698 Polyethylene Substances 0.000 description 9
- 229920002396 Polyurea Polymers 0.000 description 7
- 238000005474 detonation Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 230000009970 fire resistant effect Effects 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000009958 sewing Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 229920006231 aramid fiber Polymers 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
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- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229920007790 polymethacrylimide foam Polymers 0.000 description 3
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- 238000013022 venting Methods 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
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- 238000012546 transfer Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
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- 238000012938 design process Methods 0.000 description 1
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- 238000007598 dipping method Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229920006253 high performance fiber Polymers 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
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- 238000003860 storage Methods 0.000 description 1
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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
- F42D5/05—Blasting mats
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
The invention provides a soft fence type integrated explosion-proof blanket, which can overcome the defects that the existing explosion-proof blanket is redundant in structure, easy to jump, incapable of protecting against disasters in the whole explosion process and easy to generate secondary injury. The explosion-proof blanket comprises: the fire-proof and explosion-proof fence comprises a cover body, a fire-proof and explosion-proof fence, a bulletproof fence, a blanket and a jump-proof fence; the fireproof and explosion-proof fence is of a cylindrical structure with two open ends, and the cover body is covered and arranged at the top opening of the fireproof and explosion-proof fence; the bulletproof fence is coaxially arranged outside the fireproof and explosion-proof fence and is in fit connection with the fireproof and explosion-proof fence; the anti-jump fence is arranged at a position with a set height outside the anti-jump fence and is connected with the anti-jump fence through an annular bulge extending inwards from the upper end; the annular bulge extending inwards at the upper end of the anti-jump flying fence is used as a lap joint surface of the blanket, the central hole of the blanket is lapped on the annular bulge of the anti-jump flying fence, the outer side of the blanket extends outwards to form the anti-jump flying fence until the blanket contacts with the ground, and the anti-jump flying fence has the anti-jump flying function through the counterweight of the blanket.
Description
Technical Field
The invention relates to a safety protection device, in particular to an integrated anti-explosion blanket, and belongs to the field of police, military and public safety defense equipment.
Background
The explosion-proof blanket is mainly a special device for temporarily disposing explosive, and generally consists of an inner fence, an outer fence and a cover blanket, wherein an explosion venting opening is formed in the middle of the cover blanket, and the fence is generally of a cylindrical upper and lower opening structure. When the conventional anti-explosion blanket is used, the inner rail is used for covering explosive substances, the outer rail is sleeved on the inner rail, and finally the cover blanket is covered, so that the suspicious explosive substances are isolated from the outside.
In terms of structure and explosion-proof capability, the traditional explosion-proof blanket structure adopts three parts of a separated blanket, an inner fence and an outer fence, and the three parts are not linked, so that a larger jump condition generally occurs under the explosion condition, for example, the blanket can fly to a height of tens of meters under the explosion condition, and larger damage can be caused to the surrounding; under the condition that the separated structure is easier to generate jump flight, the fragments are easy to fly out from the bottom, and especially under the secondary action of detonation products, the fragments leak, so that the surrounding is killed.
In terms of materials and manufacturing, the traditional anti-explosion blanket fence is generally made of multiple layers of PE or aramid fibers, in the manufacturing process, the erectability of the fence needs to be ensured, one is to adopt fiber materials to encircle into a circular ring structure and then pour epoxy resin to solidify, so that a harder anti-explosion structure is formed, and the whole structure is easy to fly out integrally during explosion, and due to the hard structure, a certain impact effect is easy to be caused on surrounding people and objects. Another way is to add a rigid structure in the rail as a support, such as a relatively rigid plastic plate structure like PC board, PVC, ABS, etc. The structure has better verticality and no metal material with larger density, but part of harder materials fly out after the explosion, for example, broken PC boards fly out at higher speed and can still possibly cause certain injury to human bodies. The traditional blanket is generally prepared from bulletproof high-performance fiber materials such as PE (polyethylene), aramid fibers and the like, an explosion venting port is arranged at the top of the blanket and used for venting explosion shock waves from the top, the blanket has no fireproof and fire extinguishing capability and shock wave absorbing capability, and can not effectively extinguish fire when encountering dangerous goods such as gasoline bullets and the like. The shock wave is diffracted after being discharged from the top, so that the shock wave is easy to kill the surrounding environment to a certain extent; by adopting the separated structure, the broken pieces fly out easily from the bottom or from the uncoupling position between the inner fence and the outer fence, which requires that the whole blanket is made of bulletproof materials, and has higher cost.
During the explosion process, a shock wave is generated, which damages surrounding structures, but for negative oxygen balance explosives, such as TNT explosives, which generate a large amount of H when being exploded in air 2 And CO, H 2 And CO can react with surrounding oxygen to generate combustion exothermic reaction, so that the energy output of the negative oxygen balance explosive takes two forms, namely air shock wave and post combustion effect of detonation products, and the post combustion effect still drives part of fragments to fly out from the bottom of the explosion-proof equipment. Post-combustion effects of detonation products are not considered in the traditional explosion-proof blanket design process.
Disclosure of Invention
In view of the above, the invention provides a soft fence type integrated anti-explosion blanket, which can overcome the defects that the existing anti-explosion blanket has redundant structure, is easy to jump and fly, cannot protect against disasters in the whole explosion process and is easy to generate secondary injury.
Soft rail type integrated explosion-proof blanket, comprising: the fire-proof and explosion-proof fence comprises a cover body, a fire-proof and explosion-proof fence, a bulletproof fence, a blanket and a jump-proof fence;
the fireproof and explosion-proof fence is of a cylindrical structure with two open ends, and the cover body is covered and arranged at the top opening of the fireproof and explosion-proof fence; the bulletproof fence is coaxially arranged outside the fireproof and explosion-proof fence and is in fit connection with the fireproof and explosion-proof fence;
the anti-jump fence is arranged at a position with a set height outside the bulletproof fence and is connected with the bulletproof fence through an annular bulge extending inwards from the upper end; the annular bulge extending inwards at the upper end of the anti-jump flying fence is used as a lap joint surface of the blanket, the central hole of the blanket is lapped on the annular bulge of the anti-jump flying fence, the outer side of the blanket extends outwards to form the anti-jump flying fence until the anti-jump flying fence contacts with the ground, and the anti-jump flying fence has the anti-jump flying function through the counterweight of the blanket.
As a preferable mode of the invention, the fireproof and explosion-proof fence is axially segmented, and the fireproof and explosion-proof fence sequentially comprises: the energy-absorbing foam layer A, the fireproof layer and the energy-absorbing foam layer B;
the energy-absorbing foam layer A and the energy-absorbing foam layer B are made of porous foam materials;
and the fireproof layer is made of a dry water material encapsulated by the fireproof layer supporting structure.
As a preferable mode of the invention, the fireproof and explosion-proof fence is axially segmented, and the fireproof and explosion-proof fence sequentially comprises: the energy-absorbing foam layer A, the fireproof layer and the energy-absorbing foam layer B;
the energy-absorbing foam layer A and the energy-absorbing foam layer B are both formed by filling a dry water material with porous foam materials;
and the fireproof layer is made of a dry water material encapsulated by the fireproof layer supporting structure.
As a preferred mode of the present invention: the inner surface of the energy-absorbing foam layer A is a conical surface, so that the wall thickness of the top opening of the fireproof and explosion-proof fence is thicker.
As a preferred mode of the present invention: the fireproof layer is provided with small holes, and the opening area is 20% -80%.
As a preferred mode of the present invention: the bulletproof fence is formed by adopting fiber strips to be wound in a crossing way, and waterproof oxford is adopted for packaging outside the bulletproof fence.
As a preferred mode of the present invention: the blanket is in the form of a varying thickness with an increased wall thickness at the outside edge of the blanket to increase the corresponding weight.
As a preferred mode of the present invention: the anti-jump fence comprises: annular bulletproof layer B; the annular bulge extending inwards from the upper end of the inner surface of the bulletproof layer B is divided into two layers, namely an upper compressible layer and a lower bulletproof layer A.
As a preferred mode of the present invention: and an impact waveguide structure extends inwards from the lower end of the inner surface of the bulletproof layer B.
As a preferred mode of the present invention: the lower end of the inner surface of the fireproof and explosion-proof fence extends inwards to form an impact waveguide structure.
As a preferred mode of the present invention: the shock wave guiding surface of the shock wave guiding structure is an inclined surface with a set angle.
In a preferred embodiment of the present invention, the shock wave guiding surface is an inclined surface having an angle of 45±5°.
As a preferable mode of the invention, handles are arranged on the bulletproof fence, the blanket and the jump-proof fence.
As a preferred mode of the present invention, when the explosives are disposed in a non-contact manner, the explosion-proof blanket is arranged in a right direction, and the explosives are covered by the inner rail formed by the fireproof explosion-proof rail and the bulletproof rail;
when the contact type explosive is disposed, the explosion-proof blanket is inverted, and the explosive is placed on the cover body serving as the inner bottom surface inside the fireproof and explosion-proof fence.
The beneficial effects are that:
(1) The explosion-proof blanket has good economy and high protection efficiency: the explosion-proof blanket has the main effects that the explosion-proof blanket is mainly used as a fence, shock waves, fragments and high-temperature flames generated in the explosion process are protected through the explosion-proof fireproof fence and the bulletproof fence, the detonation product secondary loading fragments are protected by the jump-proof fence, and the main effect of the blanket is to prevent the jump-proof fence from flying in the detonation product action process; the blanket adopts a variable thickness mode, and the wall thickness at the outer edge of the blanket is increased to increase corresponding torque, so that the jump phenomenon can be better avoided, and the broken piece is effectively prevented from flying out from the bottom; conventional explosion-proof blanket covers are generally made of bulletproof materials, so that the cost is increased greatly. In addition, in the scheme, each module respectively bears a corresponding function and is taken as a whole, so that the optimal protection efficiency is achieved, and in practical test, the protection efficiency is improved by more than 1 time compared with that of a conventional explosion-proof blanket structure.
(2) The structure and the materials of the software are adopted, and the secondary injury is low: according to the invention, the bulletproof fence and the jump-proof fence adopt continuously-wound fiber cloth structures, and the structures do not need corresponding supporting structures, so that the hard supporting structures are prevented from flying out during explosion, and secondary damage is caused to the surrounding environment; the traditional anti-explosion blanket generally contains a certain hard supporting structure, such as a PC board or is formed by integral glue filling, and the fence is easy to jump and fly at the moment of explosion to cause certain secondary damage to the surrounding.
(3) The explosion-proof blanket adopts an integrated structural scheme, can be conveniently operated, and can be directly covered by a single person to cover explosive substances without redundant repeated actions when in use. The traditional anti-explosion blanket needs to be operated by two persons, and the blanket is made of soft materials, so that the anti-explosion blanket can be folded conveniently, the whole structure can be used for non-contact treatment of explosives, and the anti-explosion blanket can be stored and transported in a contact mode after the fireproof anti-explosion fence and the cover body are disassembled.
Drawings
FIG. 1 is a schematic view of the overall structure of an explosion-proof blanket of the present invention;
FIG. 2 is a schematic cross-sectional view of a fire and explosion protection enclosure;
FIG. 3 is a schematic diagram of the structure of a dry water material powder;
fig. 4 is a schematic view of a ballistic resistant enclosure;
FIG. 5 is a schematic cross-sectional view of a jump-preventing fence;
fig. 6 is a schematic view of the treatment mode under the contact condition.
FIG. 7 is a schematic view of the blanket and rail storage;
fig. 8 shows the shock wave mode of action of a near-surface explosion.
Wherein: 1-1-a cover; 2-a fireproof and explosion-proof fence; 3-bulletproof fences; 4-covering the blanket; 5-a jump-preventing fence; 2.2-top spray polyurea layer; 2.3-an energy absorbing foam layer A; 2.4-a fire-blocking layer; 2.5-a flame retardant layer support structure; 2.6-an energy absorbing foam layer B; 2.7-spraying a polyurea layer at the bottom; 2.4.1-hydrophobic silica; 2.4.2-liquid; 5.2-compressible layer; 5.3-ballistic layer a; 5.4-ballistic layer B; 5.5-impact waveguide structure.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1:
the embodiment provides a soft fence type integrated explosion-proof blanket, which adopts the structure and materials of software and has low secondary injury; and the economical efficiency is good, and the protection efficiency is high.
As shown in fig. 1, the soft fence type integrated explosion-proof blanket includes: the fire-proof and explosion-proof fence comprises a cover body 1, a fire-proof and explosion-proof fence 2, a bulletproof fence 3, a blanket 4 and a jump-proof fence 5.
The fireproof and explosion-proof fence 2 is of a cylindrical structure with two open ends, and the cover body 1 is covered and arranged at the top opening of the fireproof and explosion-proof fence 2; the bulletproof fence 3 is coaxially arranged outside the fireproof and explosion-proof fence 2 and is in fit connection with the fireproof and explosion-proof fence 2; the anti-jump flying fence 5 is arranged at a position with a set height outside the bulletproof fence 3 and is connected with the bulletproof fence 3 through an annular bulge with the upper end extending inwards; the upper surface of the annular bulge extending inwards at the upper end of the anti-jump fence 5 is used as the lap joint surface of the blanket 4, so that the anti-jump fence 5 can be firmly pressed by the weight of the blanket 4, and the phenomenon that the broken pieces fly out from the bottom due to the jump of the anti-jump fence 5 is avoided. The central hole of the blanket 4 is lapped on the upper surface of the annular bulge of the anti-jump fence 5, and the outer side extends outwards to form a round or square blanket body until the blanket body is contacted with the ground.
In the integrated anti-explosion blanket, a cover body 1 is stuck on a fireproof and anti-explosion fence 2 through a magic tape, the fireproof and anti-explosion fence 2 is stuck on a bulletproof fence 3 through the magic tape, a jump-proof fence 5 is connected to the bulletproof fence 3 through sewing or the magic tape, and a blanket 4 is fixed on the jump-proof fence 5. The whole anti-explosion blanket is of an integral detachable structure, and only one person is required to hold the anti-explosion blanket to cover the explosive or two persons lift handles on two sides of the cover blanket 4 to cover the explosive when the anti-explosion blanket is used.
Specific: the cover body 1 is formed by a bulletproof fiber layer and a foam layer which are packaged together through fireproof waterproof cloth, wherein the bulletproof fiber layer is made of 20 layers of PE fiber cloth, and the fiber cloth is sewn together through aramid fiber threads; the foam layer has a density of 50kg/m 3 A dense porous PMI foam composition; the ballistic fiber layer and the foam layer are stacked together (typically with the ballistic fiber layer on top of each other) and then encapsulated with a fire-resistant, water-repellent cloth (e.g., a high silica fire-resistant cloth) after the surface is coated with a water-repellent film. The cover body 1 is mainly used for pressure relief and top bulletproof, the cover body 1 flies at the moment of explosion, and pressure is flushed out from the bottom and meanwhile, the cover body has certain bulletproof capacity. The cover body 1 is matched with the top opening of the fireproof and anti-explosion fence 2 in size and is detachably connected with the top opening of the fireproof and anti-explosion fence 2 (such as being connected with the fireproof and anti-explosion fence 2 through a magic tape).
The fireproof and explosion-proof fence 2 is mainly made of porous foam materials and dry water materials, the surface of the fireproof and explosion-proof fence is encapsulated by fireproof waterproof cloth, and the fireproof and explosion-proof fence is respectively connected with the bulletproof fence 3 and the cover body 1 through magic tapes. As shown in fig. 2, the fireproof and explosion-proof fence 2 is axially segmented, and sequentially comprises: an energy absorbing foam layer a2.3, a fire-resistant layer 2.4 and an energy absorbing foam layer B2.6. The energy absorption foam layer A2.3 and the energy absorption foam layer B2.6 are porous foam materials, wherein the porous foam materials are preferably PMI foam and polyurethane foam, and the density is 50g/cm 3 ～200g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The fire-proof layer 2.4 is a dry water material encapsulated by the fire-proof layer supporting structure 2.5, and adopts the dry water material as an explosion-proof fire-extinguishing agent, and the dry water (dry water) is a mixture composed of hydrophobic silica particles and tiny stable liquid drops. Dry waterThe content of internal moisture can reach more than 90%, the specially treated silicon dioxide powder has nano-scale particle size and strong hydrophobicity, and the silicon dioxide powder is adhered to the surface of small liquid formed under high-speed stirring to form a silicon dioxide shell, so that liquid drops are not aggregated any more, and the powder with high specific surface area is formed. Under the action of explosion, the micron-sized powder forms throwing under the action of shock waves, so that on one hand, the micron-sized powder can throw and absorb kinetic energy, and the shock wave kinetic energy is converted into harmless kinetic energy of powder, and on the other hand, a large number of flames can be extinguished conveniently. The inner surface of the energy-absorbing foam layer A2.3 is divided into a cylindrical surface and a conical surface, wherein the end of the cylindrical surface is connected with the fireproof layer 2.4, and the upper end of the cylindrical surface is the conical surface, so that the wall thickness of the opening at the top of the fireproof and explosion-proof fence 2 is thicker. The inner surface of the energy-absorbing foam layer A2.3 is sprayed with a top spraying polyurea layer 2.2; the inner surface of the energy-absorbing foam layer B2.6 is sprayed with a bottom spraying polyurea layer 2.7. The outside of the fireproof and explosion-proof fence 2 is encapsulated by high silica fire-resistant cloth.
Furthermore, a plurality of small holes can be formed in the fireproof layer 2.4, the opening area is 20% -80%, on one hand, the weight of a part can be reduced, and on the other hand, the shock wave, the flame and the dry water structure can be fully mixed, so that the effect of extinguishing the flame and explosion can be achieved. The polyurea at the position of the bottom spraying polyurea layer 2.7 is not open, so that the shock wave can be partially blocked, the pressure is released upwards as much as possible, and the shock wave energy is absorbed through the energy absorbing foam layer A2.3 and the fireproof layer 2.4.
The preparation process of the dry water (dry water) is as follows: the preparation method comprises adding hydrophobic silica 2.4.1 and liquid 2.4.2 into a closed container at a given ratio, shearing with agitator or other mechanical method to form small droplets, and distributing the small droplets on nano-scale SiO 2 Both in a highly dispersed state, are well mixed in a sufficiently large spatial volume, utilizing SiO 2 The nature of spontaneously adhering to the surface of the droplet forms a structure similar to that of water-in-oil, resulting in SiO as shown in FIG. 3 2 And powder wrapped with tiny water drops. The basic principle of preparing the dry water fire extinguishing agent is to utilize the surface tension of solution and the physical properties of nano-level particles such as hydrophobicity to highly disperse liquid phase and solid phase, so that solid phase particles can be adhered to the surfaces of tiny liquid beads to form a similar structureMicrocapsule structure.
As shown in fig. 4, the bulletproof fence 3 is made of 150 layers of PE fiber cloth through continuous winding equipment with adjustable pretightening force, and then is wound by PE fiber cloth strips, wherein the winding angle is 120-degree crossed winding, so that the uprightness of the whole structure is ensured; after winding is completed, the winding head and the winding tail are formed into a whole by adopting a hot melting technology or a sewing technology, and the PE fiber strips are adopted for cross winding, so that the loosening of the structure is avoided. And finally, packaging through waterproof oxford. For convenient carrying, two handles are arranged on the surface of the bulletproof fence 3. The bulletproof fence 3 adopts the winding mode, so that the winding of each layer of explosion-proof material in the interior is neat, uniform and compact, the bulletproof fence can stand stably and vertically without a special supporting structure, and the explosion-proof performance is improved; can be suitable for winding materials with different widths and different stretchability, and improves the production efficiency.
The blanket 4 is made of fiber cloth bulletproof material or non-bulletproof material, and since the bulletproof fence 3 has intercepted all fragments, the jump-proof fence 5 has intercepted fragments which are easy to be driven by secondary explosion products; therefore, the blanket 4 is mainly used for counterweight, and firmly presses the jump-proof fence 5 to avoid jump-flying of secondary products of explosion. The blanket 4 adopts a variable thickness form, and the wall thickness at the outer edge of the blanket is increased so as to increase the corresponding weight, thus better avoiding the jump phenomenon; if the whole material of the blanket 4 adopts soft oxford cloth with gum dipping, the increment is increased at the corners by adding 30 layers of counterweight oxford cloth with the width of 200mm at the four corners of the blanket 4, the jump-preventing fence 5 can be pressed on the ground through a moment relation, jump is avoided, and the blanket is soft and foldable in the whole structure.
The blanket 4 can be square or round, and the common explosion-proof blanket is square, because the traditional explosion-proof blanket is made of bulletproof materials, and the bulletproof fiber cloth is cut with a certain width, and the round shape can lead to the cost increase; however, in this embodiment, the blanket 4 may be made of non-bulletproof fiber material, which is cheaper, so that square shape may be adopted, and round shape may be adopted. The blanket 4 can be firmly connected to the anti-jump fence 5 through a sewing line with higher strength or other fixing modes, so that the blanket is prevented from being separated from the anti-jump fence 5 in the instant of explosion. For convenient carrying, two handles are arranged on the surface of the blanket 4.
The anti-jump fence 5 has better anti-jump capability, and after the cover body 1, the bulletproof fence 3 and the fireproof and explosion-proof fence 2 fly upwards under the action of explosion, the anti-jump fence 5 can not jump under the action of the weight of the blanket, so that fragments are prevented from flying out from the bottom under the action of secondary loading of detonation products. For convenient carrying, two handles are arranged on the outer surface of the anti-jump fence 5. The anti-jump fence 5 is connected to the anti-jump fence 3 through sewing lines or magic tapes with lower strength, the connection strength is weak, the anti-jump fence 3 can intercept fragments at the moment of explosion, and moves upwards under the action of shock waves, at the moment, the anti-jump fence 3 is separated from the anti-jump fence 5, and the anti-jump fence 5 is prevented from being driven to move upwards.
As shown in fig. 5, the jump-preventing fence 5 includes: annular bulletproof layer B5.4, the annular bulge that the upper end of bulletproof layer B5.4 internal surface inwards extends divide into two-layer, is compressible layer 5.2 of upper strata and bulletproof layer A5.3 of lower floor respectively, and compressible layer 5.2 adopts PCV foam, can have better cushioning effect when the explosion, avoids bulletproof layer B5.4 to rise under the shock wave effect to lead to flying out from the junction of blanket 4 and anti-bouncing fence 5. The bulletproof layer A5.3 adopts 80 layers of PE fibers and is sewn through fiber threads, and the bulletproof layer A5.3 mainly has the function of preventing fragments from being blown up by secondary products of explosion and leaking from the bottom. The bulletproof layer B5.4 is formed by continuously winding 80 layers of PE fibers; the lower end of the inner surface of the bulletproof layer B5.4 is internally extended with an impact wave guiding structure 5.5, and the impact wave guiding structure 5.5 adopts PVC foam to spray polyurea for impact wave guiding, so that impact waves are prevented from being rushed out from the bottom of the anti-jump fence 5 and jump. The cross section of the shock wave guiding structure 5.5 is an isosceles right triangle, one right-angle side of the shock wave guiding structure is in contact connection with the bulletproof layer B5.4, the other right-angle side is in contact with the ground, and the surface of the bevel edge is a shock wave guiding surface; the resulting shock wave guide surface is a 45 ° inclined surface. The outside of the jump-preventing fence 5 is encapsulated by waterproof oxford.
The principle of using a shock wave guide surface with an inclination angle of 45 ° is described in detail below:
as shown in fig. 8, the shock wave generated when the explosive explodes propagates outward in a spherical shape, a is the incident shock wave propagating outward in the form of a spherical wave, and B is the reflected wave generated from the interface when the incident shock wave contacts the ground. When the incident shock wave expands outwardly, the reflected wave generated from the ground also expands upwardly, merging with the ground in the vicinity of the blast-center ground projection of the incident shock wave. When the incident shock wave further expands, the intersection point C of the reflected wave and the incident wave has left the ground, and a new shock wave, mach wave, which advances in the horizontal direction is formed below B, C, D, E. The intensity of Mach wave is more air shock wave and will have certain reinforcing, and the angle of Mach wave general and ground is related with explosion altitude, if the explosive altitude is lower, like in this scheme, the explosive is generally on ground or in the bottom of explosion-proof equipment, because the internal diameter of rail is not big (generally about 400-500 mm), the angle of Mach wave and ground at this moment is generally about 15-30, adopts 45 shock wave direction angles to have changed shock wave waveform that can be comparatively good, avoid leading to the fact the Mach wave to skip from the surface because the angle is too low, does not change the direction of shock wave. And the main transverse action of the shock wave is not caused by too large included angle. The shock wave guiding surface can be arranged inside the fireproof and explosion-proof fence 2 and can also be arranged at the inner wall of the anti-jump-flying fence 5, the main effect is to change the propagation direction of shock waves through an inclined plane, the jump-flying effect of the whole structure is reduced, and the angle is more proper at about 45 degrees for further avoiding the mach wave with a lower angle or the shock wave with a lower angle leaking from the bottom of the bulletproof fence.
When the explosion-proof blanket is stored, the blanket 4 can be folded upwards and stored above the cover body 1, as shown in fig. 7.
The explosion-proof blanket has two using modes:
if emergency disposal is needed, the explosive is not touched, so that the explosive is prevented from being detonated in advance due to touching, and when the explosive is disposed in a non-contact mode, the cover body 1 is arranged at the top of the fireproof and explosion-proof fence 2; the inner fence formed by the fireproof and explosion-proof fence 2 and the bulletproof fence 3 is used for covering explosives, so that the injuries to surrounding objects and personnel are avoided, and the treatment is further waited for the professional to come.
If transfer is needed, detecting by an X-ray detector, determining that the explosive can move, and clamping and placing the explosive into the explosion-proof blanket by a robot or an explosion-discharging rod; the whole explosion-proof blanket can also be inverted in advance, as shown in fig. 6, explosives are placed on the cover body 1 inside the fireproof and explosion-proof fence 2, and then the explosion-proof blanket can be moved onto a trailer for transfer by a corresponding explosion-discharging person.
Example 2:
on the basis of the above embodiment 1, another structural form of the fireproof and explosion-proof fence 2 is given.
The fireproof and explosion-proof fence 2 is axially segmented, and sequentially comprises the following parts from top to bottom: an energy absorbing foam layer a2.3, a fire-resistant layer 2.4 and an energy absorbing foam layer B2.6. Wherein the energy absorption foam layer A2.3 and the energy absorption foam layer B2.6 are both formed by filling a dry water material with porous foam materials, the porous foam materials are preferably PMI foam and polyurethane foam, and the density is 50-200 g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The fireproof layer 2.4 is a dry water material encapsulated by the fireproof layer supporting structure 2.5, and the dry water material is used as an explosion-proof fire extinguishing agent.
While the invention has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (13)
1. The utility model provides a soft rail formula integration explosion-proof blanket which characterized in that: comprising the following steps: the anti-explosion fire-proof and anti-explosion fence comprises a cover body (1), a fire-proof and anti-explosion fence (2), a bulletproof fence (3), a blanket (4) and an anti-jump fence (5); the bulletproof fence (3) and the jump-proof fence (5) adopt continuously-wound fiber cloth structures;
the fireproof and explosion-proof fence (2) is of a cylindrical structure with two open ends, and the cover body (1) is covered and arranged at the top opening of the fireproof and explosion-proof fence (2); the bulletproof fence (3) is coaxially arranged outside the fireproof and explosion-proof fence (2) and is in fit connection with the fireproof and explosion-proof fence (2);
the anti-jump fence (5) is arranged at a position with a set height outside the bulletproof fence (3) and is connected with the bulletproof fence (3) through an annular bulge with the upper end extending inwards; the annular bulge extending inwards at the upper end of the anti-jump fence (5) is used as a lap joint surface of the blanket (4), the central hole of the blanket (4) is lapped on the annular bulge of the anti-jump fence (5), the outer side of the blanket extends outwards to form the anti-jump fence until the blanket contacts with the ground, and the anti-jump fence (5) has the anti-jump function through the counterweight of the blanket (4);
the blanket (4) is in a variable thickness form, and the wall thickness at the outer side edge of the blanket (4) is increased to increase the corresponding weight.
2. The soft-fenced-in integrated explosion-proof blanket of claim 1, wherein: the fireproof and explosion-proof fence (2) is axially segmented, and sequentially comprises the following components from top to bottom: an energy-absorbing foam layer A (2.3), a fireproof layer (2.4) and an energy-absorbing foam layer B (2.6);
the energy-absorbing foam layer A (2.3) and the energy-absorbing foam layer B (2.6) are made of porous foam materials;
the fireproof layer (2.4) is made of a dry water material encapsulated by the fireproof layer supporting structure (2.5).
3. The soft-fenced-in integrated explosion-proof blanket of claim 1, wherein: the fireproof and explosion-proof fence (2) is axially segmented, and sequentially comprises the following components from top to bottom: an energy-absorbing foam layer A (2.3), a fireproof layer (2.4) and an energy-absorbing foam layer B (2.6);
the energy-absorbing foam layer A (2.3) and the energy-absorbing foam layer B (2.6) are both formed by filling a porous foam material with a dry water material;
the fireproof layer (2.4) is made of a dry water material encapsulated by the fireproof layer supporting structure (2.5).
4. A soft pen integrated explosion blanket as claimed in claim 2 or 3, wherein: the inner surface of the energy-absorbing foam layer A (2.3) is a conical surface, so that the wall thickness of the opening at the top of the fireproof and explosion-proof fence (2) is thicker.
5. A soft pen integrated explosion blanket as claimed in claim 2 or 3, wherein: the fireproof layer (2.4) is provided with small holes, and the open area is 20% -80%.
6. The soft-fenced-in integrated explosion-proof blanket of claim 1, wherein: the bulletproof fence (3) is formed by adopting fiber strips to be wound in a crossing way, and waterproof oxford is adopted for packaging outside the bulletproof fence.
7. The soft-fenced-in integrated explosion-proof blanket of claim 1, wherein: the jump-preventing fence (5) comprises: annular bulletproof layer B (5.4); the annular bulge extending inwards at the upper end of the inner surface of the bulletproof layer B (5.4) is divided into two layers, namely an upper compressible layer (5.2) and a lower bulletproof layer A (5.3).
8. The soft-fenced-in integrated explosion-proof blanket of claim 7, wherein: the lower end of the inner surface of the bulletproof layer B (5.4) is internally extended with an impact waveguide structure (5.5).
9. The soft-fenced-in integrated explosion-proof blanket of claim 1, wherein: the lower end of the inner surface of the fireproof and explosion-proof fence (2) is internally extended with an impact waveguide structure (5.5).
10. A soft pen integrated explosion blanket as set forth in claim 8 or 9, wherein: the shock wave guiding surface of the shock wave guiding structure (5.5) is an inclined surface with a set angle.
11. The flexible-fence-type integrated explosion-proof blanket of claim 10, wherein: the shock wave guiding surface is an inclined surface with an angle of 45+/-5 degrees.
12. The soft-fenced-in integrated explosion-proof blanket of claim 1, wherein: handles are arranged on the bulletproof fence (3), the blanket (4) and the anti-jump fence (5).
13. The soft-fenced-in integrated explosion-proof blanket of claim 1, wherein:
when the explosion-proof blanket is used for disposing the explosives in a non-contact mode, the explosion-proof blanket is arranged in a positive mode, and the explosion-proof blanket covers the explosives through an inner fence formed by the fireproof explosion-proof fence (2) and the bulletproof fence (3);
when the contact type explosive is disposed, the explosion-proof blanket is inverted, and the explosive is placed on the cover body (1) serving as the inner bottom surface inside the fireproof and explosion-proof fence (2).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210137955.6A CN114636361B (en) | 2022-02-15 | 2022-02-15 | Soft fence type integrated explosion-proof blanket |
| PCT/CN2022/082994 WO2023155271A1 (en) | 2022-02-15 | 2022-03-25 | Soft-fence-type integrated explosion-proof blanket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210137955.6A CN114636361B (en) | 2022-02-15 | 2022-02-15 | Soft fence type integrated explosion-proof blanket |
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| Publication Number | Publication Date |
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| CN114636361A CN114636361A (en) | 2022-06-17 |
| CN114636361B true CN114636361B (en) | 2023-11-14 |
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| CN202210137955.6A Active CN114636361B (en) | 2022-02-15 | 2022-02-15 | Soft fence type integrated explosion-proof blanket |
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| CN (1) | CN114636361B (en) |
| WO (1) | WO2023155271A1 (en) |
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| CN117627712B (en) * | 2023-12-13 | 2024-10-11 | 中国矿业大学 | Explosion-proof blanket for blocking goaf gas explosion and using method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5684264A (en) * | 1995-10-26 | 1997-11-04 | Cassells; James R. | Ballistic containment device |
| CN107339922A (en) * | 2016-05-03 | 2017-11-10 | 北京中科盾科技有限公司 | Shock wave guide housing explosion-proof blanket |
| CN110579146A (en) * | 2019-09-17 | 2019-12-17 | 湖南艾尔防务技术有限公司 | An integrated structure explosion-proof blanket |
| CN110645863A (en) * | 2019-09-17 | 2020-01-03 | 北京理工大学 | Novel explosion-proof blanket composite fence structure |
| CN112179231A (en) * | 2020-06-15 | 2021-01-05 | 北京理工大学 | Unexploded ordnance/explosive ordnance destruction protective equipment, system and method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE59600607D1 (en) * | 1995-02-03 | 1998-11-05 | Akzo Nobel Nv | Device for protection against explosive devices |
| US7806037B2 (en) * | 2004-08-23 | 2010-10-05 | Friedman Research Corporation | Blast protection system |
| CN205991752U (en) * | 2016-07-27 | 2017-03-01 | 北京中科盾科技有限公司 | A kind of shock wave guide housing explosion-proof blanket |
| CN110617748B (en) * | 2019-09-11 | 2024-09-20 | 北京理工大学 | Portable anti-fragment leakage flexible skirt for anti-explosion barrel/tank |
| CN111637808B (en) * | 2020-05-29 | 2025-01-28 | 湖南艾尔防务技术有限公司 | Large equivalent flexible composite explosion-proof equipment |
| CN216049488U (en) * | 2021-09-22 | 2022-03-15 | 河北安科安全防护用品有限公司 | High-safety double-rail type explosion-proof blanket |
-
2022
- 2022-02-15 CN CN202210137955.6A patent/CN114636361B/en active Active
- 2022-03-25 WO PCT/CN2022/082994 patent/WO2023155271A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5684264A (en) * | 1995-10-26 | 1997-11-04 | Cassells; James R. | Ballistic containment device |
| CN107339922A (en) * | 2016-05-03 | 2017-11-10 | 北京中科盾科技有限公司 | Shock wave guide housing explosion-proof blanket |
| CN110579146A (en) * | 2019-09-17 | 2019-12-17 | 湖南艾尔防务技术有限公司 | An integrated structure explosion-proof blanket |
| CN110645863A (en) * | 2019-09-17 | 2020-01-03 | 北京理工大学 | Novel explosion-proof blanket composite fence structure |
| CN112179231A (en) * | 2020-06-15 | 2021-01-05 | 北京理工大学 | Unexploded ordnance/explosive ordnance destruction protective equipment, system and method |
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| WO2023155271A1 (en) | 2023-08-24 |
| CN114636361A (en) | 2022-06-17 |
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Denomination of invention: Soft fence type integrated explosion-proof blanket Granted publication date: 20231114 Pledgee: Beijing Pufan Protection Technology Co.,Ltd. Pledgor: HUNAN AIER DEFENSE TECHNOLOGY Co.,Ltd.|Beijing Technology al Safety Technology Co.,Ltd. Registration number: Y2024990000222 |