CN215810508U

CN215810508U - Explosion-proof container based on polymer foam encapsulation

Info

Publication number: CN215810508U
Application number: CN202122172757.7U
Authority: CN
Inventors: 卞晓兵; 王博; 王亮亮; 安超
Original assignee: Beijing Technology Al Safety Technology Co ltd
Current assignee: Beijing Technology Al Safety Technology Co ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-02-11
Anticipated expiration: 2031-09-09

Abstract

The utility model relates to the technical field of public safety service equipment, in particular to an explosion-proof container based on high polymer foam packaging, which comprises a barrel body; the barrel body is a hollow circumferential closed body and comprises a barrel body high-molecular foam packaging layer, and a barrel body shock wave resisting layer and a fragment resisting layer which are sequentially contained in the barrel body high-molecular foam packaging layer from inside to outside, wherein the barrel body high-molecular foam packaging layer is of a closed structure; the barrel shock wave resisting layer is a PVC packaging bag containing filling liquid; the explosion-proof container provided by the utility model is excellent in structure and light in self weight based on the analysis of characteristics of implosion shock waves and fragment loads, is suitable for long-distance transportation and long-term storage, and has the advantages that the sealing performance of the whole explosion-proof container is improved by arranging the barrel body high-molecular foam packaging layer, the explosion weakening effect is strong, and the protection efficiency is high.

Description

Explosion-proof container based on polymer foam encapsulation

Technical Field

The utility model relates to the technical field of public safety defense equipment, in particular to an explosion-proof container based on high polymer foam packaging.

Background

Safe disposal of explosives left over in war times, outdated during non-war production, and discovered in public places has been a research hotspot in the field of explosion protection; the use of blast resistant containers to contain explosives is one of the common and effective approaches. The existing explosion-proof container is mostly based on metal alloy materials, although the explosion-proof container has strong weakening performance of exploding various loads (shock waves, fragments and the like), the density of metal materials is high, the weight of the equipment is large, and the explosion-proof container can be cracked even under the condition of over-explosion, so that high-mass destructive fragments are generated.

The use of low density and liquid materials is a new explosion proof method because such materials are very easily broken into very small fragments under the action of explosive load, and the low density structurally weak materials hardly produce secondary fragment hazards. The existing explosion-proof containers based on crushable energy absorption are mainly explosion-proof fences and explosion-proof water bags. The former can capture fragments generated by explosion of low equivalent TNT explosives, but is completely based on high molecular polymers, and cannot treat large equivalent explosives. The latter has good explosion shock wave protection performance, but because the ballistic protection efficiency of water is very low, the latter cannot give consideration to two design requirements of high-efficiency fragment protection and low self weight; in addition, the explosion-proof water bag is lack of proper structural design and packaging, is poor in size and structural stability, and is not suitable for long-distance transportation and long-term storage.

Patent document CN105928427B discloses a flexible anti-explosion bag, which comprises a barrel body, a mesh bag and a cover body, wherein an injection port is arranged on the upper end face of the barrel body, a pressure limiting valve is arranged on the injection port, and when in use, filling liquid needs to be injected from the injection port, which is troublesome to operate.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides the explosion-proof container which has light self weight, high protection efficiency and firm structure and is based on the macromolecular foam packaging.

In order to achieve the above object, the present invention provides an explosion-proof container based on polymer foam encapsulation, comprising: the barrel body is a hollow circumferential closed body and comprises a barrel body high polymer foam packaging layer, and a barrel body shock wave resisting layer and a fragment resisting layer which are sequentially contained in the barrel body high polymer foam packaging layer from inside to outside, wherein the barrel body shock wave resisting layer is a PVC packaging bag containing filling liquid, and the barrel body high polymer foam packaging layer is of a closed structure.

Preferably, the explosion-proof container based on polymer foam packaging further comprises a cover body, the cover body comprises a cover body polymer foam packaging layer and a cover body shock wave resisting layer contained in the cover body polymer foam packaging layer, the cover body shock wave resisting layer is a PVC packaging bag containing filling liquid, the cover body polymer foam packaging layer is of a closed structure, and the cover body is detachably connected with the barrel body.

Preferably, the outer diameter of the lid body is the same as the outer diameter of the top of the tub body.

Preferably, the material of the filling liquid is one or more of pure water or an aqueous solution of an inorganic salt or an aliphatic compound or a solution of air bubbles or a nanoporous material-non-wetting liquid mixture or perlite or aerogel.

Preferably, the fragment resisting layer comprises a plurality of layers of fiber cloth arranged in sequence from inside to outside.

Preferably, the outside of staving polymer foam encapsulation layer is equipped with staving polymer foam back up coat, the outside of lid polymer foam encapsulation layer is equipped with lid polymer foam back up coat, staving polymer foam back up coat and lid polymer foam back up coat are polyurea coating or rubber coating.

Preferably, the barrel body is in a hollow cylindrical structure, a hollow circular truncated cone structure or a hollow square structure.

Preferably, the cover body is of a circular structure or a boss circular structure.

Preferably, a plurality of blind holes are formed in the barrel body polymer foam packaging layer.

Compared with the prior art, the technical scheme of the utility model has the beneficial effects that: the explosion-proof container based on the high polymer foam encapsulation provided by the utility model is based on the analysis of the characteristics of the implosion shock wave and fragment load, has an excellent structure and light dead weight, is suitable for long-distance transportation and long-term storage, and does not generate secondary destructive fragments. Through setting up staving polymer foam encapsulation layer, increased the leakproofness of whole explosion-proof container, the explosion weakens the effect stronger, and the protection efficiency is high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic cross-sectional view of an explosion-proof container based on a polymer foam package according to a first embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of an explosion-proof container based on polymer foam encapsulation according to a second embodiment of the present invention;

fig. 3 is a schematic structural diagram of an explosion-proof container based on polymer foam encapsulation in a third embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a cover in the third embodiment;

FIG. 5 is a schematic structural view of the barrel according to the fourth embodiment.

[ description of reference ]

1: a barrel body; 2: a cover body; 3: a barrel shock wave resisting layer; 4: a fragment resist layer; 5: a barrel body high polymer foam packaging layer; 6: a barrel body high polymer foam reinforcing layer; 7: a cover shock wave resistant layer; 8: a cover body high polymer foam packaging layer; 9: a cover body high polymer foam reinforcing layer; 10: a boss; 11: and (4) blind holes.

Detailed Description

For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the explosion-proof container based on the macromolecular foam encapsulation, the shock wave resisting layer mainly aims to weaken the explosion shock wave through the self shock wave reflection effect or/and momentum extraction effect or/and plastic deformation energy absorption effect, and reduce the load of the explosion shock wave which is directly transmitted out of the barrel body 1 and is subsequently diffracted from the top and the bottom to the outside of the barrel to the maximum extent. The main purpose of the fragment-resistant layer 4 is to efficiently intercept multiple fragments that pass out of the shock wave-protecting layer, and to prevent them from continuing to pass out of the barrel 1. Wherein lid 2 is the entity structure, and staving 1 is hollow circumference closure, and staving 1 and lid 2 periphery can further adopt the polymer fabric to pack to conveniently set up the string bag that is used for placing the explosive at the inner circle cavity of staving 1, be equipped with the handle that is used for the transport in the outside of staving 1 and lid 2. The cover body shock wave resisting layer 3 and the cover body shock wave resisting layer 7 are both PVC packaging bags containing filling liquid, the explosion-proof container barrel body 1 based on high-molecular foam packaging is a necessary part, the barrel body 1 and the cover body 2 are detachably connected, concretely, a magic tape female buckle is arranged at the top of the barrel body 1, a magic tape buckle is arranged at the bottom of the cover body 2, the cover body 2 is arranged above the barrel body 1 and is adhered with the magic tape female buckle through the magic tape female buckle, the detachable connection is realized, the cover body 2 can be selected according to specific environments, the cover body 2 can be used when the explosion-proof container is used in indoor environments, and the cover body 2 can not be used when the explosion-proof container is used in outdoor environments.

The fragment resisting layer 4 comprises a plurality of layers of fiber cloth which are sequentially arranged from inside to outside, the fragment resisting layer 4 can be selected from various different types of fiber cloth, and specifically can be selected from high-performance fiber fabric laid cloth, high-performance fiber non-woven fabric, single-phase or multi-phase shear thickening fluid impregnated high-performance fiber fabric or common cloth; when the materials are selected, the materials can be sequentially arranged from inside to outside according to the sequence of common cloth, high-performance fiber non-woven fabric, high-performance fiber fabric non-woven fabric and high-performance fiber fabric soaked by single-phase or multi-phase shear thickening solution, and the reason is that the matching relation between the fragment resisting efficiency and the fragment speed is met, and the corresponding fragment resisting mechanism is changed from dynamic orientation local shear failure to large-area film stretching failure. The material of the polymer foam packaging layer of the barrel body 1 and the cover body 2 can be polyethylene foam, polystyrene foam or polyurethane foam.

The first embodiment is as follows:

the embodiment provides an explosion-proof container based on polymer foam encapsulation as shown in fig. 1, which comprises a barrel body 1 and a cover body 2, wherein the barrel body 1 is of a hollow circular truncated cone structure, the cover body 2 is of a circular structure, and the outer diameter of the cover body 2 is the same as that of the top of the barrel body 1.

Referring to the structural schematic diagram of the barrel body 1 of fig. 1, the barrel body 1 comprises a barrel body high polymer foam packaging layer 5, and a barrel body shock wave resisting layer 3 and a fragment resisting layer 4 which are sequentially accommodated inside the barrel body high polymer foam packaging layer 5 from inside to outside. The barrel shock wave resisting layer 3 is a PVC packaging bag containing filling liquid, and the filling liquid in the barrel shock wave resisting layer 3 is a nano porous material-non-infiltration liquid mixture; the fragment resisting layer 4 comprises a plurality of layers of fiber cloth which are sequentially arranged from inside to outside, and the fragment resisting layer 4 comprises an ultrahigh molecular weight polyethylene non-woven fabric, an aramid plain woven fabric and an ultrahigh molecular weight polyethylene non-woven fabric which are sequentially arranged from inside to outside; the barrel body high polymer foam packaging layer 5 is of a closed structure, the outside of the barrel body 1 is packaged by the high polymer foam packaging layer, and the used high polymer foam material is closed polyurethane foam.

Lid 2 includes lid polymer foam packaging layer 8 and holding and resists layer 7 in the inside lid shock wave of lid polymer foam packaging layer 8, the layer 7 is resisted to the lid shock wave and is held the PVC packaging bag of filling liquid for holding, the filling liquid in the layer 7 is resisted to the lid shock wave is for adding the water of nanometer porous material, lid polymer foam packaging layer 8 is the enclosed construction, 2 outsides of lid are encapsulated by polymer foam packaging layer, lid 2 uses polymer foam to encapsulate, the material of use is polyurethane foam.

The outside of staving polymer foam encapsulating layer 5 is equipped with staving polymer foam back up coat 6, and the outside of lid polymer foam encapsulating layer 8 is equipped with lid polymer foam back up coat 9, and staving polymer foam back up coat 6 and lid polymer foam back up coat 9 are the rubber layer that the spraying formed, carry out tensile strength through setting up lid polymer foam back up coat 9 to the polymer foam that is used for the encapsulation and consolidate.

When the explosion-proof container based on the macromolecular foam encapsulation in the first embodiment is used for carrying out emergency disposal of explosives: when the suspected explosive is found, the explosion-proof container can be lifted by personnel to cover the suspected explosive, and decision-making disposal is carried out after subsequent inspection. If the explosive is accidentally exploded, the explosion-proof container can effectively weaken the surrounding explosion shock wave, intercept the explosion fragments or greatly reduce the speed of the explosion fragments.

Example two:

the embodiment provides an explosion-proof container based on polymer foam encapsulation as shown in fig. 2, which comprises a barrel body 1 and a cover body 2, wherein the barrel body 1 is of a hollow cylindrical structure, the cover body 2 is of a circular structure, and the outer diameter of the cover body 2 is the same as that of the top of the barrel body 1.

Referring to the structural schematic diagram of the barrel body 1 of fig. 2, the barrel body 1 comprises a barrel body high polymer foam packaging layer 5, and a barrel body shock wave resisting layer 3 and a fragment resisting layer 4 which are sequentially accommodated inside the barrel body high polymer foam packaging layer 5 from inside to outside. The barrel shock wave resisting layer 3 is a PVC packaging bag containing filling liquid, and the filling liquid is a nano porous material-non-infiltration liquid mixture; the fragment resisting layer 4 comprises a plurality of layers of fiber cloth which are sequentially arranged from inside to outside, and the fragment resisting layer 4 comprises an ultrahigh molecular weight polyethylene non-woven fabric, an aramid plain woven fabric and an ultrahigh molecular weight polyethylene non-woven fabric which are sequentially arranged from inside to outside; the barrel body high polymer foam packaging layer 5 is of a closed structure, the barrel body 1 is packaged by the high polymer foam packaging layer, and the used high polymer foam material is polyurethane foam.

Lid 2 includes lid polymer foam packaging layer 8 and holding and resists layer 7 in the inside lid shock wave of lid polymer foam packaging layer 8, the layer 7 is resisted to the lid shock wave and is held the PVC packaging bag of filling liquid for holding, the filling liquid in the layer 7 is resisted to the lid shock wave is the pure water, lid polymer foam packaging layer 8 is the enclosed construction, 2 outsides of lid are encapsulated by polymer foam packaging layer, lid 2 uses polymer foam to encapsulate, the material of use is polyurethane foam.

The outside of staving polymer foam encapsulating layer 5 is equipped with staving polymer foam back up coat 6, and the outside of lid polymer foam encapsulating layer 8 is equipped with lid polymer foam back up coat 9, and staving polymer foam back up coat 6 and lid polymer foam back up coat 9 are the polyurea layer that the spraying formed, carry out tensile strength through setting up lid polymer foam back up coat 9 to the polymer foam that is used for the encapsulation and consolidate.

Example three:

the embodiment provides an explosion-proof container based on polymer foam encapsulation as shown in fig. 3, which comprises a barrel body 1 and a cover body 2, wherein the barrel body 1 is of a hollow cylindrical structure, the cover body 2 is of a boss 10 circular structure, the outer diameter of the boss 10 of the cover body 2 is the same as the inner diameter of the top of the barrel body 1, the boss 10 part of the cover body 2 can be plugged into the upper opening part of the barrel body 1, the outer diameter of the cover body 2 is the same as the outer diameter of the top of the barrel body 1, and the cross section schematic diagram of the cover body 2 is shown in fig. 4.

Referring to the structural schematic diagram of the barrel body 1 of fig. 3, the barrel body 1 includes a barrel body polymer foam encapsulation layer 5, and a barrel body shock wave resisting layer 3 and a fragment resisting layer 4 which are sequentially accommodated inside the barrel body polymer foam encapsulation layer 5 from inside to outside. The barrel shock wave resisting layer 3 is a PVC packaging bag containing filling liquid, and the filling liquid in the barrel shock wave resisting layer 3 is a mixture of pure water and aliphatic compounds; the broken piece resists layer 4 and includes the multilayer fiber cloth that sets gradually from inside to outside, and the broken piece resists layer 4 and includes ordinary oxford, aramid plain weave cloth and the boron carbide that set gradually from inside to outside: aramid fabrics impregnated with the silica multiphase shear thickening fluid; the barrel body high polymer foam packaging layer 5 is of a closed structure, the barrel body 1 is packaged by the high polymer foam packaging layer, and the used high polymer foam material is polystyrene foam.

When the explosion-proof container based on the polymer foam encapsulation in the third embodiment is used for carrying out the emergency disposal of explosives: when suspected explosives are found and it is determined that the explosives can move, the cover body 2 is firstly lifted, then the explosive is transferred by the explosive discharge rod to enter the upper part of the built-in net bag of the barrel body 1, and then the cover body 2 is placed on the barrel body 1 to wait for the decision-making disposal after the follow-up inspection. If the explosive is accidentally exploded, the explosion-proof container can effectively weaken the surrounding explosion shock wave, intercept explosion fragments or greatly reduce the speed of the explosion fragments; during the shielding process, the explosion-proof container may disintegrate, wherein the material is scattered, but no harmful secondary fragments are generated.

Example four:

the embodiment provides an explosion-proof container based on polymer foam encapsulation as shown in fig. 5, which comprises a barrel body 1, wherein the barrel body 1 is of a hollow cylindrical structure, the barrel body 1 comprises a barrel body polymer foam encapsulation layer, and a barrel body shock wave resisting layer and a fragment resisting layer which are sequentially accommodated in the barrel body polymer foam encapsulation layer from inside to outside, and the barrel body polymer foam encapsulation layer is of a closed structure; the shock wave resisting layer of the barrel body is a PVC packaging bag containing filling liquid. A plurality of blind holes 11 are formed in the polymer foam packaging layer of the barrel body, the blind holes 11 can be square holes, and the blind holes 11 account for 20% of the area of the polymer foam packaging layer of the whole barrel body.

It should be understood that the above description of specific embodiments of the present invention is only for the purpose of illustrating the technical lines and features of the present invention, and is intended to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, but the present invention is not limited to the above specific embodiments. It is intended that all such changes and modifications as fall within the scope of the appended claims be embraced therein.

Claims

1. The utility model provides an explosion-proof container based on polymer foam encapsulation, its characterized in that, includes the staving, the staving is hollow circumference closure, the staving includes staving polymer foam encapsulation layer to and hold in proper order from inside to outside in staving shock wave of staving polymer foam encapsulation layer inside resists the layer and resists the layer with the broken piece, the layer is resisted to the staving shock wave for the PVC encapsulation bag that holds filling liquid, staving polymer foam encapsulation layer is the enclosed construction.

2. The explosion-proof container based on polymer foam packaging of claim 1, further comprising a cover body, wherein the cover body comprises a cover body polymer foam packaging layer and a cover body shock wave resisting layer contained inside the cover body polymer foam packaging layer, the cover body shock wave resisting layer is a PVC packaging bag containing filling liquid, the cover body polymer foam packaging layer is of a closed structure, and the cover body is detachably connected with the barrel body.

3. The polymeric foam encapsulation-based explosion-proof container of claim 2, wherein the outer diameter of the lid body is the same as the outer diameter of the top of the tub body.

4. The explosion-proof container based on high molecular foam encapsulation according to any one of claims 1 to 3, wherein the material of the filling liquid is one or more of pure water or an aqueous solution of an inorganic salt or an aliphatic compound or a solution of air bubbles or a nanoporous material-non-wetting liquid mixture or perlite or aerogel.

5. The polymeric foam encapsulated explosion proof container of any one of claims 1-3, wherein said fragment resistant layer comprises a plurality of layers of fiber cloth arranged in sequence from the inside to the outside.

6. The explosion-proof container based on polymer foam encapsulation of claim 3, wherein a barrel polymer foam reinforcing layer is arranged on the outer side of the barrel polymer foam encapsulation layer, a cover polymer foam reinforcing layer is arranged on the outer side of the cover polymer foam encapsulation layer, and the barrel polymer foam reinforcing layer and the cover polymer foam reinforcing layer are polyurea coatings or rubber coatings.

7. The explosion-proof container based on polymer foam encapsulation of any one of claims 1 to 3, wherein the shape of the barrel body is a hollow cylindrical structure, a hollow circular truncated cone structure or a hollow square structure.

8. The polymeric foam encapsulated explosion proof container of claim 2, wherein said cover is of circular configuration or of convex circular configuration.

9. The explosion-proof container based on polymer foam encapsulation of any one of claims 1 to 3, wherein the polymer foam encapsulation layer of the barrel body is provided with a plurality of blind holes.