CN110645863A - Novel explosion-proof blanket composite fence structure - Google Patents

Novel explosion-proof blanket composite fence structure Download PDF

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Publication number
CN110645863A
CN110645863A CN201910877970.2A CN201910877970A CN110645863A CN 110645863 A CN110645863 A CN 110645863A CN 201910877970 A CN201910877970 A CN 201910877970A CN 110645863 A CN110645863 A CN 110645863A
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layer
explosion
fence
proof
retardant
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CN201910877970.2A
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CN110645863B (en
Inventor
黄广炎
卞晓兵
刘瀚
黄风雷
周颖
周启强
王海福
贺佳男
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Hunan Eyre Defense Technology Co Ltd
Beijing University of Technology
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Hunan Eyre Defense Technology Co Ltd
Beijing University of Technology
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2571/00—Protective equipment

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

The invention discloses a novel explosion-proof blanket composite fence structure. The invention can improve the performance of the anti-shrapnel, can effectively prevent the shock waves and fragment damages generated by 2 grenades, and can effectively prevent fire and extinguish fire. The inner fence and the outer fence are integrated into a whole through the inner connecting layer and the outer connecting layer, so that impact waves generated by explosion and reflected waves of the impact waves can be effectively prevented from impacting the inner fence, the jumping of the fence is prevented, secondary loading of ground reflected waves on broken pieces is prevented, and the capacity of the integral explosion-proof blanket and bulletproof piece is enhanced. In addition, the structures of the inner and outer peripheral columns are improved. The inner fence comprises 5 layers, and the material is prevented from losing efficacy under the conditions of explosion and high temperature through the flame-retardant layer and the heat-insulating layer; the flame-retardant and explosion-proof liquid layer is used for absorbing shock wave energy generated by explosion, reducing shock wave pressure and extinguishing fire; the supporting layer, the flame-retardant and explosion-proof liquid layer and the elastic sheet protective layer decelerate and intercept the broken pieces, so that the explosion-proof capacity of the fence is effectively improved.

Description

Novel explosion-proof blanket composite fence structure
Technical Field
The invention relates to the technical field of safety protection devices, in particular to a novel explosion-proof blanket composite fence structure.
Background
The explosion-proof blanket is a kind of protective equipment for temporary storage and disposal of explosive, and is composed of inner enclosure, outer enclosure and cover blanket. The traditional inner and outer fences are generally formed by laminating a single aramid fiber material through epoxy resin, and the epoxy resin and the aramid fiber material are suitable for the environmentThe stress is poor, and the structure is easy to collapse and cannot keep the original shape due to the fact that the rigidity of the structure is reduced when the structure is placed for a long time. PE materials are generally adopted for lamination, and the shape structure of the PE materials is kept unchanged by adding some supporting structures inside the PE materials. The PE material has a relatively light density compared with aramid fiber, and the density of the PE material is 0.97g/cm3The density of the aramid fiber material is 1.4-1.5g/cm3The PE with unit mass has stronger bulletproof advantage than aramid fiber, but the melting point of the aramid fiber is about 500 ℃ and the melting point of the PE is 120 ℃, so that part of PE or aramid fiber materials can be directly ignited at the moment of explosion, the explosion-proof effect is reduced, and even fire can be directly caused.
Meanwhile, for the existing explosion-proof blanket, the inner fence is adopted to cover the suspicious explosive firstly, then the outer fence is sleeved on the inner fence, and finally the blanket is covered to isolate the suspicious explosive from the outside. The current explosion-proof blanket only considers the effect of the anti-shrapnel (fragment), has general protection effect, generally can only protect 1 grenade, and can not effectively protect the shock wave. However, when an explosive explodes, shock waves and fragments are generated at the same time, and when the explosive explodes, the shock waves have high overpressure, so that the shock waves can damage surrounding people. And the shock wave is larger, and the reflection wave on the ground is also enlarged, so that the fence is easy to jump up, fragments fly out from the bottom of the fence, and the explosion-proof effect of the explosion-proof blanket is influenced.
Disclosure of Invention
In view of this, the invention provides a novel composite fence structure of an explosion-proof blanket, which can improve the performance of the elastic sheet resistance, effectively prevent the impact waves and fragment damages generated by 2 grenades, and simultaneously effectively prevent fire and extinguish fire.
The novel explosion-proof blanket composite fence structure comprises an inner fence, an outer fence and inner and outer connecting pieces; wherein, one end of the inner and outer connecting pieces is fixed at the bottom of the inner rail, and the other end is fixed at the top of the peripheral rail.
Preferably, the inner and outer connecting layers are made of a bulletproof material.
Preferably, the inner and outer connecting layers are made of aramid or PE.
Preferably, the inner and outer connecting layers are fixed on the inner and outer peripheral rails by sewing or nylon buttons.
Preferably, the inner fence is sequentially provided with a flame-retardant layer, a heat-insulating layer, a supporting layer, a flame-retardant and explosion-proof liquid layer and a spring plate protective layer from inside to outside; the flame-retardant layer is used for preventing flame from firing on the inner layer material; the heat insulation layer is used for reducing heat transmission to the inner layer; the supporting layer is used for supporting and intercepting the fragments; the flame-retardant and explosion-proof liquid layer is used for absorbing the energy of explosion shock waves, attenuating the fragment speed and extinguishing fire; the spring plate protective layer is used for protecting the broken pieces.
Preferably, the flame-retardant and explosion-proof liquid in the flame-retardant and explosion-proof liquid layer comprises a foam fire extinguishing agent, an antifreezing agent, nano silicon dioxide, a water-absorbent resin and water; wherein, the mass percentage content of the foam extinguishing agent is 5-15%, the mass percentage content of the antifreezing agent is 5-15%, the mass percentage content of the nano silicon dioxide is 2-6%, and the mass percentage content of the water-absorbent resin is 2-8%.
Preferably, the height of the flame-retardant and explosion-proof liquid layer is the same as that of the inner fence; or the height of the inner fence is lower than that of the inner fence, and a shrapnel buffer layer for buffering the shrapnel speed is arranged above the flame-retardant and explosion-proof liquid layer; the sum of the heights of the elastic sheet buffer layer and the flame-retardant and explosion-proof liquid layer is equal to the height of the inner fence.
Preferably, the flame-retardant layer is made of fireproof cotton or glass fiber; the heat insulation layer is made of aramid fiber or aerogel felt; the supporting layer is polyurethane foam sprayed with polyurea or a PC bulletproof supporting plate; the elastic sheet protective layer is made of PE or aramid fiber.
Preferably, the peripheral rail comprises a peripheral rail supporting layer and a peripheral rail spring piece protective layer; the peripheral rail elastic sheet protective layer is used for protecting broken sheets; the peripheral column supporting layer is used for supporting the peripheral column elastic sheet protective layer.
Preferably, the protective layer of the elastic sheet of the peripheral fence is made of PE or aramid fiber; the peripheral fence supporting layer is made by spraying polyurea polyurethane foam or a PC board on the inner side of the protective layer of the outer fence elastic sheet.
Has the advantages that:
(1) the inner fence and the outer fence are integrated into a whole through the inner connecting layer and the outer connecting layer, so that impact waves generated by explosion and reflected waves of the impact waves can be effectively prevented from impacting the inner fence, the jumping of the fence is prevented, secondary loading of ground reflected waves on broken pieces is prevented, and the capacity of the integral explosion-proof blanket and bulletproof piece is enhanced.
(2) The inner fence structure is improved, and the inner fence comprises 5 layers, wherein the flame-retardant layer and the heat-insulating layer reduce the burning of high-temperature flame to the shrapnel protective layer, and avoid the failure of the material of the shrapnel protective layer under the condition of high explosion temperature; the flame-retardant and explosion-proof liquid layer is used for absorbing shock wave energy generated by explosion, reducing the pressure of the shock wave, and simultaneously throwing liquid in the layer to extinguish flame generated by the explosion; as the fragments are slightly later than the arrival time of the shock waves, the supporting layer intercepts the fine fragments, the flame-retardant and explosion-proof liquid layer can also attenuate the speed of the fragments, and the fibers of the elastic sheet protective layer intercept all the fragments and ensure the embedding of the fragments, thereby effectively improving the explosion-proof capacity of the fence.
(3) The invention also improves the structure of the outer fence, and further improves the explosion-proof capability of the fence.
Drawings
Fig. 1 is a sectional view of the novel explosion-proof blanket composite fence.
Fig. 2 shows a scheme a of the explosion-proof composite fence.
Fig. 3 is a scheme B of the explosion-proof composite fence.
Wherein, 1-inner rail, 2-inner and outer connecting layer, 3-outer rail; 1.1-a flame-retardant layer, 1.2-a heat-insulating layer, 1.3-a supporting layer, 1.4-a flame-retardant and explosion-proof liquid layer and 1.5-a shrapnel protective layer; 3.1-a peripheral fence supporting layer and 3.2-a peripheral fence bulletproof layer; 1.4.1-semi-high explosion-proof liquid layer, 1.4.2-semi-high elastic sheet buffer layer.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
The invention provides a novel explosion-proof blanket composite fence structure, which comprises an inner fence 1, an outer fence 3 and inner and outer connecting pieces 2, wherein the inner fence 1 is connected with the outer fence through a connecting piece; wherein, one end of the internal and external connecting piece 2 is fixed at the bottom of the internal fence 1, and the other end is fixed at the top of the peripheral rail 3; through the inner and outer connecting layers 2, the inner fence 1 and the outer fence 3 can be integrated, impact waves generated by explosion and reflected waves of the impact waves can be effectively prevented from impacting the inner fence, the fence is prevented from jumping up, secondary loading of ground reflected waves on fragments is prevented, and the capacity of the integral anti-explosion blanket and bulletproof piece is enhanced. Preferably, the inner and outer connecting layers 2 are made of bulletproof fibers or other similar bulletproof materials, preferably aramid fibers or PE or other bulletproof fiber layers, and can obtain better bulletproof and impact-resistant effects. The inner and outer connecting layers 2 can be fixed on the inner and outer peripheral rails by sewing or nylon buttons or other fixing methods.
In addition, the invention also improves the structures of the inner fence and the outer fence, and further improves the fireproof and explosion-proof effects of the fence.
The inner fence 1 adopts a multi-layer multi-phase structure, can effectively prevent the damage of the elastic sheet and absorb shock waves. The inner fence mainly comprises a flame-retardant layer 1.1, a heat-insulating layer 1.2, a supporting layer 1.3, a flame-retardant and explosion-proof liquid layer 1.4 and a spring plate protective layer 1.5. Wherein the flame-retardant and explosion-proof liquid layer 1.4 can effectively absorb shock waves and extinguish flames.
In particular, the method comprises the following steps of,
flame retardant layer 1.1: the flame-retardant coating is mainly used for preventing high-temperature flame from firing inner layer materials, and the flame-retardant layer does not burn at the temperature of more than 1000 ℃; may be made of fire-proof cotton, fiberglass or similar fire-proof materials;
thermal insulation layer 1.2: mainly used for reducing the heat transmission to the protective layer of the elastic sheet and avoiding reducing the performance of the bulletproof fiber in the protective layer of the elastic sheet, and the heat conductivity coefficient K of the bulletproof fiberx≤0.3(W·m-1·K-1) (ii) a The material can be made of aramid fiber or other materials with the melting point of more than 300 ℃ and can also be aerogel felt;
support layer 1.3: the device is mainly used for integral support of the structure and has a certain interception effect on small fragments; is made of polyurethane foam sprayed with polyurea, or a PC bulletproof support plate, or other similar supportive nonmetal materials;
flame-retardant and explosion-proof liquid layer 1.4: the flame-retardant and explosion-proof liquid layer mainly absorbs the energy of shock waves at the moment of explosion, has a good attenuation effect on fragments, and contains a fire extinguishing agent to extinguish flames generated by explosion; in the embodiment, flame-retardant and explosion-proof liquid is arranged in the flame-retardant and explosion-proof liquid layer, and the flame-retardant and explosion-proof liquid comprises a foam extinguishing agent, an antifreezing agent, nano silicon dioxide, water-absorbent resin and water; wherein the foam extinguishing agent accounts for 5-15% by mass, the antifreezing agent accounts for 5-15% by mass, the nano silicon dioxide accounts for 2-6% by mass, and the water-absorbent resin accounts for 2-8% by mass; after the contents of other components are determined, the water content is adjusted.
The height of the flame-retardant and explosion-proof liquid can be the same as that of the inner fence (as shown in fig. 2), and any height below the height of the inner fence can also be adopted, and then a shrapnel buffer layer 1.4.2 (as shown in fig. 3) for buffering the shrapnel speed is arranged above the flame-retardant and explosion-proof liquid layer.
Elastic sheet protective layer 1.5: the method is mainly used for protecting fragments; can be made of PE or aramid fiber layers.
The explosion-proof fire-extinguishing principle of the 5-layer inner fence structure is as follows: at the moment of explosion, firstly shock waves and high-temperature flames are transmitted to the fence, and through the flame-retardant layer and the heat-insulating layer, the burning of the high-temperature flames to the elastic sheet protective layer is reduced, and the failure of the elastic sheet protective layer under the explosion high-temperature condition is avoided. The explosion shock wave extrudes the flame-retardant explosion suppression layer, the shock wave energy is converted into the kinetic energy of the flame-retardant explosion suppression layer, the shock wave pressure is reduced, and meanwhile, the flame-retardant explosion suppression liquid is thrown to extinguish the flame generated by explosion. The fragments are slightly later than the arrival time of the shock waves, fine fragments are intercepted through the supporting layer, the flame-retardant and explosion-proof liquid layer can also attenuate the speed of the fragments, and the fibers of the elastic sheet protective layer intercept all the fragments and ensure that the fragments are embedded into the fragments.
In the formula of the flame-retardant and explosion-proof liquid in the embodiment, the fire extinguishing agent ensures that the high-efficiency fire extinguishing and anti-freezing agent can work at-20 ℃, so that the liquid layer is prevented from being frozen at a low temperature, the suspended nanoparticles can generate friction under the action of explosion, the energy is absorbed more efficiently, no precipitate is generated, and the shear thickening liquid (prepared from water-absorbent resin and water) can absorb the energy of shock waves efficiently.
The peripheral column 3 adopts a double-layer structure and comprises a peripheral column supporting layer 3.1 and a peripheral column spring sheet protective layer 3.2; the peripheral fence shrapnel protective layer 3.2 is mainly used for protecting the secondary loading of fragments possibly caused by accidents or shock wave reflection waves, and can be made of the same material as the shrapnel protective layer 1.5. The peripheral rail supporting layer 3.1 is mainly used for supporting the peripheral rail elastic sheet protective layer 3.2 and can be obtained by spraying polyurea polyurethane foam, a PC board and the like on the inner side of the peripheral rail elastic sheet protective layer 3.2.
Example 1
As shown in fig. 1 and 2, a novel explosion-proof blanket composite fence structure comprises an inner fence 1, an outer fence 3 and an inner and outer connecting layer 2, wherein the inner fence 1 is formed by compounding 2 layers of fireproof cotton 1.1, 5 layers of aramid fiber 1.2, 2 layers of PC supporting plates 1.3, 1 layer of flame-retardant and explosion-proof liquid layer 1.4 and 100 layers of PE layers 1.5 from inside to outside. The peripheral column is composed of 2 layers of PC boards 3.1 and 20 layers of PE layers 3.2. Wherein the flame-retardant and explosion-proof liquid consists of 10 percent of foam extinguishing agent, 10 percent of antifreezing agent, 5 percent of nano silicon dioxide, 5 percent of water-absorbent resin and 70 percent of water.
The inner fence 1 and the outer fence 3 are both in a hollow cylindrical shape, the diameter of the outer fence 3 is 700mm, the height of the outer fence 3 is 160mm, and the weight of the outer fence is 7 kg; the diameter of the inner fence 1 is 400mm, the height of the inner fence is 320mm, and the weight of the inner fence is 12 kg; the inner rail 1 and the outer rail 3 are connected through the inner and outer connecting layers 2, one end of the inner and outer connecting layers 2 is sewn at the bottom of the inner rail 1, and the other end is sewn at the upper part of the outer rail 3. The inner and outer connecting layers are composed of 8 layers of aramid fibers.
Example 2
As shown in fig. 1 and 3, a novel explosion-proof blanket composite fence structure comprises an inner fence 1, an outer fence 3 and an inner and outer connecting layer 2, wherein the inner fence is formed by compounding 2 layers of glass fiber cloth 1.1, 2mm thick aerogel felt 1.2, 5mm polyurethane foam spraying polyurea supporting plates 1.3, 15mm thick semi-high explosion-proof liquid layer 1.4.1, 15mm thick upper end semi-high PE fiber elastic piece buffer layers 1.4.2 and 100 PE layers 1.5 from inside to outside. The peripheral column is composed of 2 layers of PC boards 3.1 and 20 layers of PE layers 3.2. The inner fence 1 and the outer fence 3 are both in a hollow cylindrical shape; the peripheral rail 3 had a diameter of 720mm, a height of 160mm and a weight of 7.5 kg; the diameter of the inner fence 1 is 440mm, the height of the inner fence is 340mm, and the weight of the inner fence 1 is 12.5 kg; the inner rail 1 and the outer rail 3 are connected through the inner and outer connecting layers 2, one end of the inner and outer connecting layers 2 is sewn at the bottom of the inner rail 1, and the other end is sewn at the upper part of the outer rail 3. The inner and outer connecting layers are composed of 8 layers of aramid fibers.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A novel explosion-proof blanket composite fence structure is characterized by comprising an inner fence (1), an outer fence (3) and an inner connecting piece and an outer connecting piece (2); wherein, one end of the inner and outer connecting pieces (2) is fixed at the bottom of the inner rail (1), and the other end is fixed at the top of the peripheral rail (3).
2. A novel explosion proof blanket composite fence structure as claimed in claim 1 wherein said inner and outer tie layers (2) are made of a ballistic resistant material.
3. A novel explosion proof blanket composite fence structure as defined in claim 1 wherein said inner and outer tie layers (2) are made of aramid or PE.
4. A novel explosion-proof blanket composite fence structure as defined in claim 1, characterized in that said inner and outer connecting layers (2) are fixed on the inner and outer fences by sewing or nylon buttons.
5. A novel explosion-proof blanket composite fence structure as defined in claim 1, wherein the inner fence (1) comprises a flame retardant layer (1.1), a thermal insulation layer (1.2), a supporting layer (1.3), a flame retardant and explosion-proof liquid layer (1.4) and a shrapnel protective layer (1.5) from inside to outside; wherein, the flame-retardant layer (1.1) is used for preventing the burning of flame to the inner layer material; the heat insulation layer (1.2) is used for reducing the heat transmission to the inner layer; the supporting layer (1.3) is used for supporting and intercepting the fragments; the flame-retardant and explosion-proof liquid layer (1.4) is used for absorbing the energy of explosion shock waves, attenuating the fragment speed and extinguishing fire; the spring piece protective layer (1.5) is used for protecting the broken pieces.
6. A novel explosion-proof blanket composite fence structure as defined in claim 5 wherein the fire-retardant and explosion-proof liquid in the fire-retardant and explosion-proof liquid layer (1.4) comprises foam fire extinguishing agent, antifreeze agent, nano silica, water-absorbent resin and water; wherein, the mass percentage content of the foam extinguishing agent is 5-15%, the mass percentage content of the antifreezing agent is 5-15%, the mass percentage content of the nano silicon dioxide is 2-6%, and the mass percentage content of the water-absorbent resin is 2-8%.
7. A novel explosion-proof blanket composite fence structure as defined in claim 5 or 6 wherein the height of the fire-retardant and explosion-proof liquid layer (1.4) is the same as the height of the inner fence; or the height of the inner fence is lower than that of the inner fence, and a shrapnel buffer layer (1.4.2) for buffering the shrapnel speed is arranged above the flame-retardant and explosion-proof liquid layer (1.4); the sum of the heights of the elastic sheet buffer layer (1.4.2) and the flame-retardant and explosion-proof liquid layer (1.4) is equal to the height of the inner fence.
8. A novel explosion-proof blanket composite fence structure as defined in claim 5, characterized in that said fire-retardant layer (1.1) is made of fire-proof cotton or glass fiber; the heat insulation layer (1.2) is made of aramid fiber or aerogel felt; the supporting layer (1.3) is a polyurethane foam or a PC bulletproof supporting plate sprayed with polyurea; the elastic sheet protective layer (1.5) is made of PE or aramid fiber.
9. A novel blanket explosion proof composite rail structure as claimed in claim 1, wherein said peripheral rail (3) comprises a peripheral rail support layer (3.1) and a peripheral rail leaf guard layer (3.2); wherein the peripheral rail elastic sheet protective layer (3.2) is used for protecting broken sheets; the peripheral rail supporting layer (3.1) is used for supporting the peripheral rail spring piece protective layer (3.2).
10. A novel blanket explosion proof composite fence structure as claimed in claim 9 wherein said peripheral rail spring guard layer (3.2) is made of PE or aramid; the peripheral fence supporting layer (3.1) is prepared by spraying polyurea polyurethane foam or a PC plate on the inner side of the outer fence elastic sheet protective layer (3.2).
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