CN1759294B

CN1759294B - Blast attenuating, blast-directing and extinguishing apparatus

Info

Publication number: CN1759294B
Application number: CN038261553A
Authority: CN
Inventors: 欧内斯特·奥格登; 约翰·麦肯齐
Original assignee: PROJECTILE Ltd
Current assignee: PROJECTILE Ltd
Priority date: 2003-01-17
Filing date: 2003-01-17
Publication date: 2011-01-12
Anticipated expiration: 2023-01-17
Also published as: AU2003303763A1; CN1759294A; EP1629250A1; US20080282874A1; WO2004065892A1; CA2513633A1

Abstract

An apparatus by which to attenuate, direct or extinguish the resultant effects of a blast or explosion. This includes the use of a spherical interior skinned apparatus with an inner container that will deform and/or rupture easily in the event of a blast or explosion therein. Membrane rupture will occur on compression of fluid and air initially directing fluid/material and debris in a less harmful direction. The apparatus can be a fixture, re-usable and portable for on site location. The apparatus will be constructed based on the anticipated force of blast or explosion. The apparatus will be re-usable in certain environments such as in the event of disposal of several blast or explosive items at different locations. The inner walls, which will form the inner container, can be replaced in the event of a blast or explosion. The containment fluid and air to be added at location or each application.

Description

Explosion decay, blasting guiding and extinguishing device

Technical field

The present invention relates to a kind of explosion decay, blasting guiding and extinguishing device.

Background technology

Containers such as dustbin once were used for placing in public places bomb by the terrorist.The interior in public places container that uses of major part is manufactured with metal, and the explosive that places this class container is dangerous, because the fragment that forms after the container casing fragmentation can be as shell fragment along the quick scattering of random direction.In fact, because this potential risks, some areas have not re-used the such dustbin or the storage area of other type.

Form as the tubular inner pressurd vessel 2 of second level container and the cavity that is between above-mentioned two containers by an inner spherical outer container 3, one according to blasting guiding of the present invention, explosion decay and extinguishing device and method.The effect of this cavity is to hold to weaken fluid initial explosion power, that have the good compression quality.The wall thickness of spherical outer container 3 is even, but puts in the special diaphragm area 10 at first order opening of container branch, and wall thickness is then much smaller.The blast or the explosion that take place in the described tubular inner pressurd vessel 2 are exerted pressure to the fluid in the described cavity, and at this moment for the fluid of pressurized in the cavity, the easiest escape approach is exactly barrier film 10 zones by thin-walled.So, fluid and be directed out by opening from the fragment of the tubular inner pressurd vessel 2 that may break, this is littler than the harm that common vessel explosion time fragment is brought when radially penetrating.

In another device combination, substitute barrier film 10 zones with second opening 16, fluid and fragment are by the opening separating device.The opening portion of first order container can be removed, and first order container can be used again like this.

Explosion decay, blasting guiding and extinguishing device have a spherical housing, and this shell holds fluid, and cylinder shape inner wall and spherical outer wall construction are arranged, the opening of and one or more barrier film/be capped.Being applied to strength on the inwall, that explosion produces build-up of pressure in described shell like this raises and the generation shock wave.The rising of fluid pressure makes fluid and air shift away by described barrier film/opening.So, the power conversion that explosion produced becomes fluid to leave the required energy of described shell.Any impact generated by explosion ripple/energy is dissipated by the distortion within the spherical outer wall of described shell.

Favourable part of the present invention is, described opening is located in the outer wall of spherical structure, and coated with diaphragm area.Compare with the other parts of spherical structure outer wall, the structure of diaphragm area is weak, thereby so in the shell fluid pressure rising can make the diaphragm area preferential tear that described opening is exposed.

Described shell is made with the material of plastics, glass fibre, light metal or any adaptation.The size of described opening can change, and can contain fragment explosion waste gas towards institute's required direction ejection in the guiding device by this change.

Favourable part of the present invention is that described diaphragm area is located at the opening in the described spherical structure outer wall, thereby and definite direction avoided bringing harm so that the fluid/material by described opening can lead safely again when beginning.

Described tubular inwall is preferably formed as all or part of of spherical first order container, so that accept another releasable container, as dustbin etc.

Favourable part of the present invention is that also the structure of described outer wall forms all or part of of spherical first order container, and it is a hollow ball that different wall is arranged, and the wall thickness of described diaphragm area is less than the wall thickness of described outer wall construction remainder.

In addition, explosion or explosion time are taking place, described tubular inner pressurd vessel should be easily deformable and/or be broken, thereby the side direction strength of explosion is passed to fluid in the shell.

Favourable part of the present invention also has, described diaphragm area is towards the inclined of device combination, and be symmetrical in axis along diametric(al) and distribute in couples, like this, any membrane ruptures all can cause opening in shell, make fluid/material and tubular inner pressurd vessel or the described fragment that places the other drum ladle in it can be, and meet at described axis place with ejecta from the opposite opening from these openings ejections.Therefore, this device combination energy that borehole blasting produced is by each fluid that sprays simultaneously and/or interfragmental collision, and leaves shell by displacement of fluid and obtain dissipating.

In another example of the present invention, described opening is extended by pipeline, water can be injected wherein.In another example of the present invention, described pipeline links to each other with the open area on opposite along diameter, and so, fluid and the fragment from opposed area meets in pipeline simultaneously, makes the energy dissipation of explosion by mutual collision.Described pipeline also can be provided with one or more opening/barrier films, and fluid can pass them to put out any flame of pipeline below.A top cover can be set above described pipeline, with the fluid of any upwards ejection in the attenuating device combination and/fragment.The cross section of described pipeline can be a U-shaped.

In another example of the present invention, described pipeline can extend to device vertically upward always and make up outside the residing building.

Preferably one or more closed facilities can be installed in shell, can be to wherein charging into fluid or fluid therefrom being gone out clearly.

Favourable part of the present invention is that also only part is fluid-filled in the described shell.Be provided with at shell under the situation of diaphragm area, when the fluid of bottom during towards the opening portion motion of described shell, the air of diaphragm area back, fluid top can be compressed.

Described shell is provided with pedestal to increase the possibility that takes place to roll after stability and the combination of minimizing device are toppled over.A kind of equipment that fluid is injected described container and fluid is gone out clearly by this container also can be provided.

Described tubular inner pressurd vessel can be decorated with plant, and described spheroid can be used to advertise, and can be chosen in described outer surface of outer cover and lay the seat on every side.

Description of drawings

This is to be provided with the spherical explosion decay of the opening of barrier film/covering, an example of blasting guiding device for Fig. 1.

This is another example of demolition set combination for Fig. 2.

This is another example that is provided with the demolition set combination of container overhead guard for Fig. 3.

This is the example vertical view that shows Fig. 1 split shed and barrier film for Fig. 4.

This is the vertical view that shows example among Fig. 2 and Fig. 3 for Fig. 5.

The specific embodiment

Device combination 1 comprises a tubular inner pressurd vessel 2 that is contained in symmetrically in the spherical outer container 3.Described spherical outer container 3 comprises a barrier film/upper member 4 and a cavity spheroid.The outer wall of described tubular inner pressurd vessel 2, the inwall of described spherical outer container 3 defines a spherical sealing shell 5 together jointly with top parts 4, wherein can charge into as water or other fluid 7.

A top edge 8 of described tubular inner pressurd vessel 2 is lower than a top edge 9 of described spherical outer container 3.Upper member 4 is respectively across edge 8 and edge on 9 the annular gap.

Upper member 4 is provided with circle or the long diaphragm area 10 (Fig. 4 and Fig. 5) that distributes relatively along diametric(al), and the thickness of these parts is less than the thickness of upper member 4 remainders.These diaphragm area 10 prevent in second opening 16 of object access to plant combination.Described diaphragm area 10 can also make the air that is in upper member 4 and is filled between fluid 7 surfaces be compressed when blasting.This compressive state can help fluid evenly ejection from second opening 16.Described upper member 4 can be injection molded into one with spherical outer container 3 or be made into to be independent of the also just replacement of assembly of spherical outer container 3 and tubular inner pressurd vessel 2.

Described tubular inner pressurd vessel 2 receivability another one containers 6 are as dustbin (not shown) etc.The material of easy deformation and/or collapse was made when described tubular inner pressurd vessel 2 uses were blasted in dustbin.The direction finding power build-up of pressure ripple that described tubular inner pressurd vessel 2 walls collapse is produced makes the fluid 7 in the shell be subjected to uniform radial compression, and the gas on fluid top is compressed, and final fluid 7 breaks through more weak part in the spherical outer container 3, and promptly diaphragm area 10.In case penetrated, 10 of described diaphragm area form second opening 16, and water and the fragment that turns to are from being ejected here.Because the symmetry arrangement of diaphragm area 10 and they are towards the inclination of device combination symmetrical centre axle 11, Pen Chu each current can meet in central axis simultaneously, thus fluid 7 energy that produce owing to explosion of dissipative part herein.In addition, this device is provided with and can seals opening 18 (only is shown), as the entrance and exit of described fluid 7.

Pedestal 12 can be installed on any part of first order container.Described pedestal 12 has three or more side, and its width approximates the diameter of described spheroid greatly.If the device combination is toppled over towards the side, pedestal can prevent that then locking apparatus rolls.

As shown in Figure 2, in another example, pipeline 13 can be connected with second opening 16, and extends upward and/or extend to building outside or another one container.Such example can not need the diaphragm area 10 in Fig. 1 example.

In other example shown in Figure 3, U-shaped pipeline 13 can connect second opening 16 that distributes relatively along diametric(al).Described pipeline can be provided with barrier film/first opening 15, can pass through barrier film/first opening 15 from the fluid in the shell and shift, and therefore this arrangement can be used as a kind of means of putting out a fire when flame occurring.The cover 17 that is located at U-shaped pipeline the top any upwards fluid and/or the fragment of ejection when explosion taking place in the described device combination of can decaying.

Claims

1. an explosion decay, blasting guiding and extinguishing device, this device comprises the tubular inner pressurd vessel (2) of an opening, and is placed in the spherical outer container (3) of an opening, forms the cavity that can hold as the fluid (7) of glassware for drinking water extinguishing ability between two containers; The wall thickness of spherical outer container (3) is even, and the top of described spherical outer container (3) and tubular inner pressurd vessel (2) links to each other by a upper member (4), and is being provided with several barrier films (10) near described tubular inner pressurd vessel (2) exit; It is characterized in that

This device also is provided with a cap/cover (17), is contained in pipeline (13) on described second opening (16) and extends up and enter in described cap/cover (17), and pipeline (13) is equipped with barrier film (10)/first opening (15).

2. device according to claim 1, the barrier film in the wherein said device (10) are that the particular location according to desired second opening (16) carries out reduction processing to upper member (4) and forms.

3. device according to claim 2, wherein said barrier film (10)/second opening (16) relatively also is symmetrically distributed along diametric(al), with any strength of balance generation.

4. device according to claim 1, wherein said tubular inner pressurd vessel (2) is installed in the spherical outer container (3) by symmetry.

5. device according to claim 1, wherein said spherical outer container (3) has spill/spherical surface.