CN220235204U

CN220235204U - Explosion venting assembly and sealing structure thereof

Info

Publication number: CN220235204U
Application number: CN202322132061.0U
Authority: CN
Inventors: 李佐军
Original assignee: Huizhou Baorui New Material Co ltd
Current assignee: Huizhou Baorui New Material Co ltd
Priority date: 2023-08-08
Filing date: 2023-08-08
Publication date: 2023-12-22
Anticipated expiration: 2033-08-08

Abstract

The application discloses let out and explode subassembly and seal structure thereof. The sealing structure comprises a frame body and a first explosion venting channel, wherein the first explosion venting channel is arranged in the middle; the explosion piece is abutted with the frame body on one side and comprises an explosion area for tearing to form an opening, and the explosion area is opposite to the explosion venting channel; the sealing gasket is abutted with the other side of the rupture disc relative to the frame body and comprises a second explosion venting channel, and the second explosion venting channel is opposite to the explosion area; at least part of the edges of the sealing gasket and the frame body extend out of the edge positions of the rupture disc respectively, so that a gap is formed between the sealing gasket and the edge of the frame body; the frame body and the sealing gasket are also provided with mounting structures with opposite positions, and the mounting structures are arranged at the positions, close to the gaps, of the frame body and the sealing gasket. The application can reduce the use of the explosion venting assembly to the sealing element, thereby reducing the structural complexity and the product cost on the premise of ensuring the internal sealing effect of the required sealing cabinet body.

Description

Explosion venting assembly and sealing structure thereof

Technical Field

The application relates to the technical field of explosion-proof structures, in particular to an explosion venting assembly and a sealing structure thereof.

Background

In the field that needs explosion-proof pressure release such as energy storage cabinet, electric cabinet and rack, installation lets out and explodes the subassembly and can open when there is the atmospheric pressure difference of predetermined numerical value in inside and outside, carries out the pressure release, reduces inside and outside atmospheric pressure difference to the security of protection building or structures such as box and the security of inside personnel and article.

At present, the explosion venting plate is applied to an energy storage cabinet, an electric cabinet and a cabinet in a traditional way, and in order to reduce the structural cost, special explosion structural designs such as rupture discs can be adopted, and when explosion or deflagration occurs due to accidents in the required sealed cabinet body, the pressure venting opening is formed by tearing the rupture discs on the explosion venting plate for pressure relief. However, because the facilities such as the energy storage cabinet, the electric cabinet and the cabinet are usually arranged in the outdoor or in places with severe external environments, the requirements on heat preservation and sealing performance are high, and therefore the sealing design for the explosion plate is particularly important.

In the prior art, in order to give consideration to explosion venting and sealing functions, a cover plate and a heat insulation material are further arranged in some products, and in order to ensure tightness among the multi-layer structures, a plurality of sealing pieces are arranged on each side face of the rupture disk to realize sealing of the inner part of the required sealing cabinet body. Although the sealing effect can be realized by the existing scheme, the structure is complicated, and the product cost is increased.

Disclosure of Invention

In order to solve the above-mentioned problem that prior art exists, this application provides an let out and explode subassembly and seal structure thereof, can reduce the complexity of structure under the prerequisite of guaranteeing the internal sealed effect of required sealed cabinet, and then reduce product cost.

The application provides the following technical scheme:

a sealing structure of a explosion venting assembly, the sealing structure comprising:

the frame body comprises a first explosion venting channel arranged in the middle;

the explosion piece is abutted with the frame body on one side and comprises an explosion area for tearing to form an opening, and the explosion area is opposite to the explosion venting channel; and

the sealing gasket is abutted with the other side of the rupture disk relative to the frame body and comprises a second explosion venting channel, and the second explosion venting channel is opposite to the explosion area; at least part of edges of the sealing gasket and the frame body extend out of the edge positions of the rupture disc respectively, so that a gap is formed between the sealing gasket and the edge of the frame body;

the frame body and the sealing gasket are further provided with mounting structures with opposite positions, and the mounting structures are arranged at the positions, close to the gaps, of the frame body and the sealing gasket.

In an embodiment, the slit is disposed around the outside of the edge of the rupture disk.

In one embodiment, the distance of the gap is 1mm or more.

In one embodiment, the mounting structure passes through the rupture disk.

In an embodiment, the rupture disk is provided with a notch at the periphery of the burst area, and the rupture disk is provided with breakable connections at several positions of the notch.

In one embodiment, V-shaped grooves are formed on two sides of the connecting portion.

The application also provides an explosion venting assembly, the explosion venting assembly includes:

the sealing structure comprises a frame body, a rupture disk, a sealing gasket and a mounting structure; wherein the sealing structure is any one of the sealing structures described above;

the cover plate is connected with one side of the frame body and covers one side of an outlet of the explosion venting channel of the frame body; and

and the filling piece is arranged at the explosion venting channel of the frame body, and the explosion area of the rupture disk indirectly props against the cover plate through the filling piece.

In an embodiment, at least one side of the cover plate is fixedly connected with the frame body.

In an embodiment, the frame body comprises 4 frames, and the top of the cover plate is fixedly connected with the frames at the top of the frame body;

the frames at the top and the bottom of the frame body extend upwards to two horizontal sides, and guide grooves are formed in the convex edges;

the cover plate is provided with a surrounding baffle on two sides, and at least part of the edge of the frame body is wrapped on the inner side by the surrounding baffle and is clamped into the guide groove.

In an embodiment, the convex edge is further provided with a grounding connection end.

From the above, the explosion venting assembly and the sealing structure provided by the application can be used for reserving a gap between the frame body and the sealing piece, and can enable the frame body to be extruded to the sealing piece after being installed to be matched with the sealing piece to form a sealing effect on the rupture disc and the required closed cabinet body. The use of explosion venting assembly to sealing member can be reduced through above-mentioned mode to reduce the structure complexity under the prerequisite of guaranteeing the internal sealed effect of required sealed cabinet, and reduce product cost.

Drawings

Fig. 1 is a schematic structural diagram of a sealing structure of a explosion venting assembly according to an embodiment of the present application.

FIG. 2 is a schematic view of a part of a cross section of a sealing structure of a explosion venting assembly according to an embodiment of the present disclosure;

fig. 3 is another schematic structural diagram of a partial cross section of a sealing structure of a explosion venting assembly according to an embodiment of the present disclosure.

Fig. 4 is a schematic structural diagram of an explosion venting assembly according to an embodiment of the present disclosure.

Fig. 5 is a schematic structural diagram of a cross-sectional state of an explosion venting assembly according to an embodiment of the present disclosure.

Fig. 6 is another schematic structural diagram of a cross-sectional state of an explosion venting assembly according to an embodiment of the present disclosure.

Detailed Description

For an understanding of the present application, reference will now be made in detail to the drawings and specific examples. Preferred embodiments of the present application are shown in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Fig. 1 shows the structure of a sealing structure of a explosion venting assembly of the present embodiment. As shown in fig. 1, the explosion venting assembly includes a frame 2, a rupture disk 1, and a gasket 3.

The frame 2 may be made of a metal frame 2, for example, an aluminum alloy, a stainless steel, or other stronger materials, which is not limited in this application. Specifically, a first explosion venting channel 21 is disposed in the middle of the frame 2, and the first explosion venting channel 21 can be used for discharging air flow generated during explosion pressure relief or other substances generated during explosion. It will be appreciated that the configuration of the first explosion venting passage 21 may be unlimited.

One side of the rupture disk 1 is in contact with the frame 2, and may be generally disposed in a direction of one side of the frame 2, which is close to a cabinet body such as a cabinet or an energy storage cabinet. The rupture disk 1 comprises a burst area 11 for tearing open, which burst area 11 is opposite to a first venting channel 21. Specifically, before blasting, the blasting area 11 is connected with other areas of the rupture disk 1 through a relatively fragile connection point 12, and when pressure relief is needed, the connection point 12 is torn by internal air pressure, so that the blasting area 11 is automatically opened.

The gasket 3 is in contact with the other side of the rupture disk 1 with respect to the frame 2, and includes a second explosion venting passage 31, and the second explosion venting passage 31 is opposed to the explosion region 11. Further, in order to achieve the sealing effect, at least part of the edges of the sealing gasket 3 and the frame body 2 extend out of the edge position of the rupture disc 1 respectively, so that a gap is formed between the sealing gasket 3 and the edge of the frame body 2. The frame 2 and the gasket 3 are also provided with mounting structures 4 with opposite positions, and the mounting structures 4 are arranged at the positions of the frame 2 and the gasket 3 close to the gaps.

The gasket 3 may be made of, for example, a silicone material, a foam material, or a sealing material having a certain deformation characteristic to seal the rupture disk 1. Specifically, the frame 2 and the rupture disc 1, and the rupture disc 1 and the sealing gasket 3 may be abutted by back adhesive, encapsulation, or extrusion force of the mounting structure 4, so that the connection is relatively fixed and the airtight effect is ensured, and the specific abutting mode is not limited in this application. Further, the back adhesive may be adhered to the notch 121 of the rupture disc 1 to seal the notch 121 of the rupture disc 1, so as to avoid accidental damage to the notch 121 and thus break the air tightness.

When deflagration occurs in the cabinet or the energy storage cabinet, the generated air flow passes through the second explosion venting channel 31 and impacts the explosion region 11 of the rupture disk 1, so that the connection point 12 of the explosion region 11 is broken and torn to form an air passage, and then is discharged through the first explosion venting channel 21.

In an embodiment, as can be seen in the partially enlarged detail in fig. 1, the rupture disc 1 is provided with notches 121 at the periphery of the burst area 11, the rupture disc 1 being provided with breakable connections at several points of the notches 121. The notch 121 makes the burst area 11 relatively independent of other areas of the rupture disk 1, when the burst area 11 is impacted by the air flow generated by the detonation, the connection portion is pulled to cause tearing, and the notch 121 can guide the tearing direction, so that the burst area 11 is opened along the notch 121 to form an air passage.

More specifically, V-shaped grooves 122 are formed on two sides of the connecting portion, and the V-shaped grooves 122 can guide the direction of stress applied to the connecting portion, so that the tearing of the connecting portion can be completed rapidly and effectively. Of course, the shape of the notch 121 of the connecting portion may be various, for example, X-shape or other shapes, so long as the shape is favorable for tearing, and the shape of the notch 121 of the connecting portion is not limited in this application.

Referring to fig. 2-3, fig. 2 illustrates a partially sectioned structure of a sealing structure of a explosion venting assembly according to an embodiment of the present application; another structure of a partial cross section of a vent assembly seal structure provided in an embodiment of the present application is shown in fig. 3.

As shown in fig. 2, the sealing structure may include a frame 2, a rupture disk, and a seal at the rim portion. The frame body 2 is arranged on one side of the rupture disc, the sealing element is arranged on the other side of the rupture disc opposite to the frame body 2, and at least part of edges of the sealing gasket 3 and the frame body 2 extend out of the edge positions of the rupture disc respectively, so that a gap is formed between the sealing gasket 3 and the edge of the frame body 2. The mounting structure 4 is provided at the seal 3 and the frame 2 near the slit.

The installation structure 4 can achieve the fastening effect among the sealing gasket 3, the frame body 2 and the rupture disk through the buckles, the screws 5 or other fasteners, and simultaneously plays a role in fixing the explosion venting assembly on the structures such as the energy storage cabinet body or the cabinet. When the mounting structure 4 is not provided with the buckle or the screw 5, the sealing gasket 3 and the frame body 2 are respectively arranged at two sides of the rupture disc, and a gap is formed between the sealing gasket 3 and the frame body 2 at the outer side of the edge of the rupture disc. In one embodiment, the mounting structure 4 extends through the rupture disk, thereby enhancing the seal between the frame 2, the rupture disk, and the gasket 3.

Another state of the structure is shown in connection with fig. 3. Wherein the sealing structure may comprise a frame body 2, a rupture disc and a sealing member at the edge portion, the frame body 2, the rupture member and the sealing member being fastened by means of a mounting structure 4. The mounting structure 4 may be fixed by means of screws 5 in combination with nuts. When the explosion venting assembly is locked by the screw 5, the screw 5 locks the frame 2, the rupture disk and the sealing member to a fixing structure for fixing the explosion venting assembly, such as the cabinet wall 10, etc., by a locking force. At this time, the frame 2 presses the rupture disk and the seal against the cabinet wall 10. Because of the deformation effect of the sealing element, the rupture disk extrudes the sealing element to be sunken, so that the cabinet body is close to the sealing element and finally is propped against the sealing element, and the rupture disk is wrapped between the frame body 2 and the sealing element, so that the sealing effect on the rupture disk and the cabinet body which is required to be sealed is formed.

It can be seen that, the sealing gasket 3 and at least part of the edges of the frame body 2 extend out of the edge positions of the rupture disc respectively, and a gap is reserved between the sealing gasket 3 and the edge of the frame body 2, so that no sealing piece is required to be arranged between the frame body 2 and the rupture disc, and the rupture disc can be sealed only by arranging a sealing piece between the rupture disc and the cabinet wall 10, thereby reducing the use of the sealing piece, the structural complexity and the cost of products.

In an embodiment, in order to achieve a full sealing of the rupture disc, gaps may be reserved at the peripheral edges of the frame 2 and the sealing gasket 3, so that the gaps are arranged around the outer side of the edge of the rupture disc. So can make monoblock rupture disk realize whole parcel by the seal structure who forms between sealing member and the framework 2 to strengthen the sealed protection to the rupture disk, and then promote the sealed effect to the inside of required sealed cabinet body. Further, in order to secure the sealing effect, the distance of the slit may be 1mm or more, so that a sufficient sealing width is provided between the gasket 3 and the frame body 2 to secure the sealing effect. Of course, the setting specification and the setting position of the gap can be determined according to the actual requirement, for example, the gap is only arranged between part of the frame body 2 and the sealing gasket 3, and the rest part is sealed by adopting a separate sealing element, so that the use of the sealing element is reduced on the premise of ensuring the structural reliability.

Referring to fig. 4, a structure of an explosion venting assembly according to an embodiment of the present application is shown.

As shown in fig. 4, the explosion venting assembly can be used for cavities, such as an energy storage cabinet, a cabinet or an electric cabinet, which need sealing and explosion venting, and comprises a sealing structure, a cover plate 6 and a filling piece 7. The sealing structure comprises a frame body 2, a rupture disc 1, a sealing gasket and a mounting structure, wherein the sealing structure can be the sealing structure of the explosion venting assembly according to any embodiment of fig. 1-4. The mounting structure may be provided on the frame 2, the rupture disk 1, the gasket and the cover plate 6 to lock the above structure by fastening.

The cover plate 6 is connected to one side of the frame 2 and covers the outlet side of the explosion venting passage of the frame 2. The filling member 7 is arranged at the explosion venting channel of the frame body 2, and the explosion area of the rupture disk 1 indirectly abuts against the cover plate 6 through the filling member 7. The cover plate 6 may be a cover plate 6 made of metal or other materials, and is mainly used for protecting the inner packing element 7 and the rupture disk from external influences. The filling member 7 may be a heat-insulating filling member 7, such as a filling member 7 made of a foaming material or other heat-insulating material, which is not limited in this application.

Specifically, the frame body 2 may adopt a frame structure, and the explosion venting channel is disposed in the middle of the frame structure. The filling member 7 is arranged at the explosion venting channel of the frame body 2 and fills and isolates the explosion venting channel. One side of the packing 7 abuts against the back surface of the cover plate 6, and the other side abuts against the rupture disk 1.

Further, the frame 2 and the rupture disk 1, and the rupture disk 1 and the sealing member 3 are fixed by the back adhesive 8, and besides the back adhesive 8, the frame may be fixed by encapsulation or other fixing methods. The reliability and the air tightness of the connection between the frame body 2, the rupture disk 1 and the sealing member 3 can be enhanced by the back adhesive 8. In addition, the back adhesive 8 can be adhered to the notch of the rupture disc 1 to seal the notch of the rupture disc 1, so as to avoid the notch from being accidentally damaged to break the air tightness.

At least one side of the cover plate 6 may be fixedly connected to the housing 2. When the inner part of the required sealed cabinet body knocks, the cover plate 6 can be connected with the fixed part of the frame body 2, so that the cover plate 6 is prevented from being thrown out to cause injury to other people.

In one embodiment, the frame 2 includes 4 frames, and the top of the cover plate 6 is fixedly connected with the frame at the top of the frame 2; the top and bottom frames of the frame 2 extend to the horizontal two sides to form convex edges, the convex edges are provided with guide grooves, the cover plate 6 is provided with surrounding baffles on two sides, and at least part of the edges of the frame 2 are wrapped on the inner side and clamped into the guide grooves. More specifically, the cover plate 6 may be provided with a fence at the bottom to prevent flowing water from entering the inside of the frame 2 from the bottom. And, sealing strips or other structures for sealing can be arranged between the cover plate 6 and the frame body 2, so that a certain sealing effect is achieved between the cover plate 6 and the frame body 2.

The structure can realize relative positioning between the cover plate 6 and the frame body 2, so that the filling piece 7 between the cover plate 6 and the frame body 2 has a relative sealing effect, and the structural reliability of the filling piece 7 is improved.

In an embodiment, the protruding edge is further provided with a grounding connection end, and the grounding connection end can be connected with external grounding equipment or a part of external grounding equipment through a wire, so that the explosion venting plate and surrounding structures thereof can avoid generating harmful static electricity.

It can be understood that the structural forms of the sealing structure, the cover plate 6, the filling member 7 and the like in the explosion venting assembly can be determined according to practical situations, for example, a mechanical structure in a square, round or triangular form is adopted to construct the explosion venting assembly, and the structural form is not limited in the application.

Referring to fig. 5-6, a cross-sectional configuration of the explosion venting assembly is shown. The structure comprises a structural state before explosion venting of the required sealed cabinet body and a structural state after explosion venting. The explosion venting assembly comprises a frame body 2, a rupture disk 1, a sealing piece 3, a cover plate 6 and a filling piece 7.

As shown in fig. 5, when no explosion occurs in the sealed cabinet, the cover plate 6 presses the packing 7 against the frame 2, and the sealing member 3, the rupture disk 1, the packing 7 and the cover plate 6 are pressed against each other in order to form the whole explosion venting assembly. And, this let out and explode subassembly through mounting structure 4's fixed for let out and explode sealing member 3 and the framework 2 butt of subassembly week edge, extrude rupture disk 1 to between sealing member 3 and the framework 2 and form sealed effect, thereby make the inside sealed state that is in of required sealed cabinet. At this time, when the internal pressure of the sealed cabinet is smaller than the pressure standard value set by the notch of the rupture disk 1, the rupture disk 1 and the back adhesive or the sealing piece 3 are in an adhesion state, so that the internal of the sealed cabinet is in a sealing state.

As shown in fig. 6, when the explosion occurs in the sealed cabinet body, the internal pressure is greater than the preset pressure standard value of the notch groove of the rupture disc 1, and at this time, the rupture disc 1 will impact the explosion area instantaneously, so that the connection point on the notch groove around the explosion area will tear instantaneously, so that the explosion area pushes the filling member 7 outwards, the cover plate 6 is pushed out by the filling member 7, the cover plate 6 deforms to form an opening between the cover plate 6 and the frame body, and the internal gas or the substances generated by the explosion are released from the second explosion release channel, the explosion area, the first explosion release channel and the channel formed after the cover plate 6 is opened, thereby realizing the explosion release effect.

It is to be understood that the foregoing is merely one embodiment, and the details of implementation of the structure may be set according to practical situations.

From the above, the explosion venting assembly provided by the application can be used for forming the sealing effect on the rupture disk and the required closed cabinet body by the cooperation of the frame body extruded to the sealing piece after being installed through the gap reserved between the frame body and the sealing piece. And the explosion venting assembly can ensure the realization of the explosion venting function on the premise of reducing the use of the sealing element, and reduces the structural complexity, thereby reducing the product cost.

It will be appreciated that in some embodiments, the structure of the vent window may be modified and replaced accordingly over the vent window provided in embodiment 1.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

The foregoing is merely illustrative and explanatory of the structures of this application, which are described in some detail and are not to be construed as limiting the scope of this application. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the spirit of the present application, and that these obvious alternatives fall within the scope of the present application.

Claims

1. A sealing structure of a explosion venting assembly, the sealing structure comprising:

2. The vent assembly seal of claim 1, wherein the slit is disposed around the outside of the rim of the rupture disc.

3. The sealing structure of the explosion venting assembly according to claim 1 or 2, wherein the gap is 1mm or more.

4. The seal of a venting assembly of claim 1, wherein the mounting structure passes through the rupture disk.

5. The seal of a venting assembly of claim 1, wherein the rupture disc is provided with score grooves at the perimeter of the burst area, the rupture disc being provided with breakable connections at several of the score grooves.

6. The explosion venting assembly sealing structure of claim 5, wherein V-shaped grooves are formed on both sides of the connecting portion.

7. An explosion venting assembly, the explosion venting assembly comprising:

the sealing structure comprises a frame body, a rupture disk, a sealing gasket and a mounting structure; wherein the sealing structure is the sealing structure according to any one of claims 1 to 6;

8. The explosion venting assembly of claim 7, wherein at least one side of the cover plate is fixedly connected to the frame.

9. The explosion venting assembly of claim 8, wherein the frame comprises 4 rims, the top of the cover plate being fixedly connected to the rims at the top of the frame;

10. The explosion venting assembly of claim 9, wherein the flange is further provided with a ground connection.