Explosion-proof plate with thermal insulation material and manufacturing method of explosion-proof plate

Abstract

The invention discloses an explosion-proof plate with a thermal insulation material and a manufacturing method of the explosion-proof plate. The explosion-proof plate includes a breaking element including a brittle zone and a peripheral shoulder, a fastening frame mounted on the peripheral shoulder but not covering the brittle zone, and a thermal insulation material connected to the breaking element. The breaking element has a plump and continuous three-dimensional integrally formed surface, is integrally manufactured, and is mainly formed by stamping, so that a shell with an inner space is formed, and the thermal insulation material is placed in the shell. The explosion-proof plate meets the safety requirement, does not lose the sealing performance as time goes on, and is simpler to manufacture.

Description

Technical Field

[0001] The invention relates to the field of explosion-proof panels, in particular to explosion-proof panels with heat-insulating materials. Background Art

[0002] Explosion vents protect unrestricted enclosures or material processing machines such as silos, hoppers, storage rooms, pressure shells, filtration systems, bucket elevators, etc. These enclosures or machines store powdered products or gases, which under certain conditions may cause internal pressure and temperature to increase, thus causing an explosion. If an abnormal overpressure occurs in the enclosure, the explosion vent will tear in the brittle zone, forming a hole through which the pressurized gas will escape.

[0003] The explosion-proof plate usually includes a metal fracture sheet with a brittle zone near the outer edge of the metal fracture sheet, a frame on and around the metal fracture sheet to fix the explosion-proof plate, and at least one sealing strip is installed below and around the metal fracture sheet to cover the brittle zone. There is usually an interface seal between the top frame and the metal fracture sheet. The explosion-proof plate is fixed around the shell opening to be protected by bolts, and the bolts must match the fixing holes near the brittle zone around the explosion-proof plate.

[0004] Furthermore, in certain types of use, such as energy storage systems (ESS) that need to be installed in outdoor containers, it is best to install heat insulation panels in addition to explosion-proof panels.

[0005] ESS containers contain batteries that store electrical energy, which usually comes from renewable energy generation systems such as photovoltaic panels or wind turbines; these batteries are used to provide electricity to local or temporary power grids. Batteries installed in containers are at risk of producing gas emissions and thermal runaway, which can cause a large amount of flammable gas to accumulate and explode once the container is closed. Therefore, explosion vents are an effective solution to minimize the risk of explosion.

[0006] However, since the container is outdoors, the explosion-proof panel is in contact with the external environment through one of the sides of the container. Depending on the climatic conditions, the large temperature difference between the inside and outside of the container may cause condensation on the explosion-proof panel and the inside of the container. This condensation must be absolutely avoided to prevent corrosion of the equipment. Corrosion can lead to electrical insulation failure, battery overheating and subsequent loss of control, and may even cause a short circuit and lead to a fire.

[0007] The "explosion-proof panel" referred to here is an explosion-proof panel with thermal insulation material, and the fractured piece in the embrittled zone is covered with an aluminum thermal insulation box with thermal insulation material in the cross section. The thermal insulation box is a component that is inlaid on the top of the fractured piece. The thermal insulation box is made by first making a box body and then adding thermal insulation material to the box body. The thermal insulation box is made of a metal plate as a base, and then the four corners of the thin sheet are cut off, each side is folded, and the outer side wall is formed, and then fixed at the corner position to ensure the sealing of the corner. The assembly of the angle iron and the side wall of the box body is further reinforced with rivets. In order to fix the thermal insulation box to the fractured piece of the explosion-proof panel, the side wall is provided with a convex angle on the opposite side of the bottom, so that it can be fixed to the fractured piece by rivets. Add sealant around the side wall and the fractured piece.

[0008] However, the design of this insulated box and its connection to the explosion-proof panel has a major drawback, which is the fact that the insulated box is affected by climatic conditions and that over time the sealing area corrodes and weakens the integrity of the sealant, making it possible for water to penetrate the interior of the insulated box. The water-soaked insulation material increases the weight of the box and thus the weight of the fractured pieces, which changes the original effect of the explosion-proof panel, and the initial fractured pieces can break easily and quickly and open completely. In addition, the principle of manufacturing and fixing the box has another disadvantage, which is that it requires many steps. Summary of the invention

[0009] The purpose of the present invention is to provide an explosion-proof panel with thermal insulation performance, which not only does not have the above-mentioned disadvantages, but also meets safety requirements, does not lose its sealing properties over time, and is simpler to manufacture.

[0010] The technical solution adopted by the present invention to solve its technical problem is:

[0011] The explosion-proof panel includes:

[0012] Fracture element, consisting of a brittle zone (capable of rupture in the event of overpressure inside the structure in which the explosion vent is installed) and a peripheral shoulder,

[0013] A fastening frame, mounted on the peripheral shoulder, does not cover the brittle zone (the fastening frame is mounted outside the inner section defined by the brittle zone so that the fracture element is not hindered when opening), but can also cover the brittle zone by a few millimeters.

[0014] It is best to install a sandwich material interface seal between the peripheral shoulder and the fastening frame and cover the embrittled area.

[0015] Insulation material connected to the breaking element,

[0016] The features of this explosion-proof panel are as follows:

[0017] The breaking element has a plump and continuous three-dimensional one-piece molded surface, which is manufactured as an integral structure to form a shell. The shell includes a main surface, a peripheral wall connected to the main surface, the peripheral wall is continuous and closed over its entire circumference (the wall surrounds the entire periphery of the main surface and has four closed corners), a peripheral boss protruding toward the outside of the shell opposite to the main surface and connected to the peripheral wall, the peripheral boss forms the peripheral fixing surface of the breaking element, the shell provides an internal space (the side walls of the space are continuous and closed), and the thermal insulation material is placed in the internal space.

[0018] The rupture element of the explosion-proof panel thus obtains, through its three-dimensional integrally formed shell, a component that performs two combined functions, namely the rupture function of the explosion-proof panel and the insulation function of the explosion-proof panel. Perfect tightness is ensured by the fact that the shell is manufactured in one piece. In fact, the three-dimensional shape of the shell is manufactured in one piece, it is manufactured from a single piece of material, and the continuity of the full and closed surface is maintained throughout the three-dimensional forming stage, that is, the connection between the main surface and the peripheral wall is full and continuous, the peripheral wall is also solid and continuous around, and the connection between the peripheral wall and the peripheral shoulder is also solid and continuous. The tightness of the rupture element integrated with thermal insulation is thus perfectly achieved. In particular, the rupture element integrated with thermal insulation can be installed outside the structure to be protected without any risk of water seepage due to bad weather.

[0019] In one embodiment, the peripheral wall is substantially perpendicular to the major surface, and the peripheral wall is perpendicular to the peripheral shoulder.

[0020] In one embodiment, the housing (fracture element) is manufactured by stamping. Preferably, the fracture element is a three-dimensional integrally formed metal sheet formed by stamping.

[0021] In one embodiment, the height of the peripheral wall is between 20-100 mm, preferably about 40 mm. The thermal insulation material is preferably arranged in the shell and does not exceed the plane of the peripheral shoulder.

[0022] In one embodiment, the insulating material fills the entire interior of the shell and is in close contact with the interior of the main surface and the interior of the peripheral wall. For example, the insulating material is rock wool, and the rock wool has been cut into a shape that is completely consistent with the shape of the container inside the shell. Alternatively, the insulating material can also be an insulating board with a cross-section of the same area as the main surface, which is in close contact with the inside of the main surface. The insulating material is preferably bonded to the inside of the main surface.

[0023] In one embodiment, the peripheral boss includes a plurality of fixing holes, and fastening and limiting devices are provided around the fixing holes.

[0024] In one embodiment, the interface seal is of frame type, and may also be divided into several parts, corresponding to the side edges of the explosion-proof plate, and connected in a concave-convex form to achieve surface continuity.

[0025] In one embodiment, the explosion-proof plate includes a supporting seal, which is installed on the periphery of the bottom surface of the peripheral shoulder, abuts against the lower end surface of the peripheral shoulder, is opposite to the fastening frame, and is preferably opposite to the interface seal (the supporting seal abuts against the protected structure or a fixed pressure plate connected to the structure), and extends to a part of the insulation material to cover the embrittled area. The supporting seal is preferably fixed by adhesive.

[0026] In one embodiment, the supporting seal is in the form of a frame or a sealing plate, which covers and continuously extends to the lower end surface of the peripheral shoulder and the entire insulation material. The supporting seal includes some through holes, which correspond to the fixing holes of the peripheral shoulder, the holes on the fastening frame and the holes on the interface seal, and are used to seal and fix the explosion-proof plate to the structure to be protected. Preferably, bolts are used for fixing.

[0027] In one use case of the explosion-proof panel, the explosion-proof panel also includes a rigid plate, which is usually a metal plate, which is in close contact with the insulation material opposite the main surface of the shell (so as to close the shell), and the rigid plate is fixed to fasteners, which can be connected to the inside of the shell. It is best to weld close to the corners of the shell. The rigid plate may also include some peripheral convex corners, which are in close contact with the inside of the outer peripheral wall of the shell. The insulation material is completely enclosed by the shell and the rigid plate.

[0028] In one embodiment, the shell covered with the thermal insulation material is higher than the connection surface, the shell (thermal insulation material) should be located on the outside of the structure, and the explosion-proof plate should be connected to the structure through the peripheral boss.

[0029] In one embodiment, the explosion proof panel includes an additional insulation material, which is added below the plane of the peripheral shoulder (the additional insulation material protrudes outside the shell filled with the insulation material), and the additional insulation material is directly fixed to the insulation material in the shell, mainly by adhesive bonding, and / or fixed to the supporting seal.

[0030] In one embodiment, the explosion-proof plate comprises a thermal insulation box mounted facing the inside of the shell (below the shell), the size of the thermal insulation box matches the size of the embrittlement zone, for example, the size of the thermal insulation box is only equivalent to the size of the inner cross-section defined by the embrittlement zone, or the size of the thermal insulation box is slightly smaller than the size of the inner cross-section defined by the embrittlement zone, the thermal insulation box contains additional thermal insulation material, and the thermal insulation box is connected to the shell (bottom of the shell). The thermal insulation box is mechanically fixed to the shell, preferably by a connection inside the shell. Therefore, the thermal insulation box encloses the part of the shell opposite to the main surface. The design (shape and size) of the thermal insulation box enables it to rotate through the inner cross-section defined by the embrittlement zone, in particular, the thermal insulation box has at least one side wall on the side of the embrittlement zone, and the side wall has an inclined surface facing the inside of the thermal insulation box.

[0031] The present invention also relates to a storage structure, the storage structure comprising at least one explosion-proof plate of the present invention. In the present application, the term "storage structure" refers to any closed structure or surrounding in which a product can at least temporarily stay or flow. Such structures are more preferably silos, hoppers, storage rooms, mixers, filter systems, pipelines, bucket elevators, ESS containers (including but not limited to).

[0032] Finally, the invention relates to a method for manufacturing the explosion-proof panel of the invention described above, comprising the prefabrication of the fracture element from a metal sheet (blank) while machining the fixing holes and the embrittlement zone, the metal sheet being stamped to form a three-dimensional shell with a full continuous surface.

[0033] The beneficial effects of the present invention are as follows: the explosion-proof plate of the present application meets safety requirements, will not lose its sealing performance over time, and is also simpler to manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention is currently described only by means of illustrative examples, but in no way limits the scope of the invention. It can be seen from the accompanying drawings, in which:

[0035] Figure 1 This is a rendering of an explosion-proof panel with a heat-insulating shell designed according to the present invention.

[0036] Figure 2 yes Figure 1 Explosion effect diagram of the middle explosion-proof panel.

[0037] Figure 3 yes Figure 1 Top view of the middle explosion-proof panel.

[0038] Figure 4 It is a partial cross-sectional view of the explosion-proof panel of the present invention installed on the protected structure without the fixing elements.

[0039] Figure 5 It is an explosion rendering of the modified explosion-proof plate, mainly related to the supporting seal.

[0040] Figure 6 yes Figure 2 Partial cross-section of the middle explosion-proof panel.

[0041] Figure 7 This is a rendering of the modified explosion-proof panel, which is mainly a closed shell.

[0042] Figure 8 yes Figure 7 Partial cross-section of the middle explosion-proof panel.

[0043] Fig. 9 It is a partial cross-sectional view of an explosion-proof panel completed according to another modification, mainly including an additional thermal insulation material.

[0044] Fig.10 It is the supporting seal between the insulation material in the shell and the additional insulation material relative to Fig. 9 The modified corresponding diagram.

[0045] Fig.11 It is another modified explosion effect diagram of the explosion-proof plate, in which the lower insulation box closes the shell so that insulation material can be placed on the top of the shell and additional insulation material can be placed in the insulation box.

[0046] Fig.12 yes Fig.11 The partial cross-sectional view of the middle explosion-proof plate does not show the thermal insulation material in the shell, nor the additional thermal insulation material in the shell, for the sake of simplicity.

[0047] Fig.13 yes Fig.11 Schematic diagram of the opening of the middle explosion-proof plate, showing the rotation of the shell and the insulation box in the embrittlement zone. DETAILED DESCRIPTION

[0048] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0049] In the following description, the terminological expressions "height", the adjectives "upper", "lower", "high" and "low" of the explosion panel element are used for a better understanding of the invention, for example, the explosion panel is installed on top of the structure to be protected.

[0050] Figure 4 The explosion-proof panel 1 of the present invention shown in FIG. 1 is used to protect the storage structure S or surrounding objects from explosion when abnormal overpressure occurs inside. The explosion-proof panel 1 is fixed to the storage structure S by a support plate S' integrally connected to the storage structure S (no bolt illustration is shown here).

[0051] Therefore, the explosion-proof panel 1 is used to seal the opening of the storage structure S, mainly the storage structure S installed outdoors, such as a container for accommodating an energy storage system (ESS). The explosion-proof panel 1 can be fixed around the opening of the storage structure S by screws passing through the explosion-proof panel 1 and the storage structure S. In the case of overpressure, the central part of the explosion-proof panel 1 can be torn, while the rest of the explosion-proof panel 1 is still connected to the storage structure S. The explosion-proof panel 1 is fixed to the corresponding fixing surface through the fixing holes 10 around the explosion-proof panel.

[0052] like Figure 1 and Figure 2 As shown, the explosion-proof panel 1 includes a breaking element 1', which includes an embrittled zone 11 that will tear when overpressure occurs inside the storage structure S, a thermal insulation material 2 for thermally insulating the structural opening covered by the explosion-proof panel 1, a fastening frame 3 for pressing the breaking element 1' against the protected storage structure S, an interface seal 4 of a sandwich structure of the contact surface between the fastening frame 3 and the breaking element 1', and a supporting seal 5 (closely attached to the opening of the protective structure) opposite to the interface seal 4 and the fastening frame 3. The interface seal 4 and the supporting seal 5 are installed in a facing manner on each surface opposite to the breaking element 1' and fit with the embrittled zone 11 to seal the area.

[0053] The explosion-proof plate 1 here is rectangular, but can also be square, circular or any other geometric shape.

[0054] According to the present invention, the breaking element 1' of the explosion-proof panel 1 is formed into a three-dimensional shell body with an integrally formed surface in the form of a shell, and the thermal insulation material 2 is located inside the shell. The three-dimensional shell body (hereinafter also referred to as the shell) comprises a main surface 12 or bottom surface, a peripheral wall 13 and a peripheral shoulder 14 opposite to the main surface 12, and the peripheral shoulder 14 extends from the peripheral wall 13 to the outside of the peripheral wall 13. The peripheral shoulder 14 forms a frame, which constitutes the fixing surface of the explosion-proof panel 1. The fixing hole 10 is machined on the peripheral shoulder 14.

[0055] The three-dimensional shell-like body is manufactured as a whole as a continuous three-dimensional integrally formed surface. This continuous integrally formed surface is obtained by stamping a metal sheet. This three-dimensional integrally formed shape of the metal sheet heightens the main surface 12 and provides a housing space V inside the shell for accommodating the thermal insulation material 2. In addition, this integrally formed metal sheet can also form a continuous surface of the shell at each contour change, that is, between the main surface 12 and the peripheral wall 13, at the corner 13' of the peripheral wall 13, and between the peripheral wall 13 and the peripheral shoulder 14, to ensure that the inside of the shell is completely sealed, thereby completely sealing the thermal insulation material 2. In addition, the shell has the advantage of being able to directly constitute the outer side of the explosion-proof plate, which is in contact with the external environment of the protected structure, because its one-piece continuous surface (including at the position of the peripheral wall 13) has perfect sealing performance.

[0056] The shell includes an embrittled zone 11, which directly provides the rupture function for the fracture element 1' and the explosion-proof panel 1. The embrittled zone 11 is located in the peripheral boss 14 between the fixing hole 10 and the peripheral wall 13, and is at a certain distance from the bottom 13A of the peripheral wall 13 (a certain distance from the starting point of the formation of the peripheral wall). The embrittled zone 11 will be covered by the interface seal 4, which will be described in detail later. Therefore, the explosion-proof panel 1 of the present invention integrates explosion-proof and heat-insulating functions. The shell is both a sealed container for the thermal insulation material and a fracture thin plate in the event of an explosion. The advantage of this design of the explosion-proof panel 1 is that the thermal insulation material is mainly placed on the outside of the protected structure. When the explosion-proof panel 1 is installed on the structure to be protected, the shell is located outside the structure and is in direct contact with the external environment and bad weather. Advantageously, the stamping design makes the inclination of the peripheral wall 13 relative to the vertical direction as small as possible (such as Figure 4 As shown), it is therefore as straight as possible relative to the bottom surface 13A near the embrittlement zone 11 and remains straight with the structure to be protected, thereby maximizing the volume of the insulation material to optimize the insulation effect relative to the structural opening. Figure 5 and Figure 6 It is also shown that the upper shape 2A of the insulating material 2 is adapted to the lower shape 2B, so that the entire internal volume V of the housing can be ensured, including the corners 13' and the bottom surface 13A of the housing.

[0057] The thickness of the metal sheet constituting the shell is preferably between 0.5 and 1.2 mm, for example, about 0.8 mm. The brittle zone 11 is located within the thickness of the metal sheet and will break when the pressure in the protected structure is too high. For example, the brittle zone 11 consists of discontinuous gaps in the thickness of the sheet (generally made by laser and connected by fragile solid parts). The brittle zone 11 is arranged on all or part of the circumference of the peripheral shoulder 14. Depending on the specific situation of the explosion-proof panel 1, the brittle zone 11 can be expanded around the entire circumference or only a part, such as Figure 3 In this case, the embrittled zone 11 extends to three sides, with the fourth side being free of an embrittled zone, so as to form a connection point at the opening while ensuring that the explosion vent 1 remains integral with the structure via the peripheral shoulder 14 .

[0058] More conveniently, the explosion-proof panel 1 includes a grounding point (such as Figure 2 and Figure 4 For example, the grounding point is a U-shaped grounding plate 1" (located on the outer periphery of the shoulder) (as shown in FIG. Figure 4As shown). The grounding plate 1" is integrated with the shell, a part of which constitutes a part of the peripheral shoulder 14 (this part is obtained during the manufacturing process and is equivalent to an extension cut from the initial steel plate blank) and a convex corner (obtained by folding), which provides a space to accommodate the interface seal 4 and the fastening frame 3, and the convex corner (grounding plate) is in direct contact with the fastening frame 3 (made of metal). There is a hole 10' on the grounding plate 1" (convex corner), which is aligned with the fixing hole 10 on the peripheral shoulder 14. The advantage of the grounding plate 1" is that it provides a grounding connection for the explosion-proof panel 1 without the need for any additional components. When a mechanical fastener (such as a screw or a nut) is added, the grounding plate connection can function, and electrical continuity can be established through the supporting pressure plate S by simply tightening the grounding plate 1" sufficiently.

[0059] In order to ensure the sealing of the explosion-proof panel 1 and the shell 1 ′ at the embrittlement zone 11 and to fix the explosion-proof panel and the shell 1 ′ at their peripheries, the explosion-proof panel 1 includes an interface seal 4 and a fastening frame 3 .

[0060] The geometry of the fastening frame 3 corresponds to the periphery of the breaking element 1'. The fastening frame 3 is arranged opposite the entire peripheral shoulder 14, but does not cover the brittle zone 11. The fastening frame 3 is preferably composed of several independent parts to save manufacturing materials and manufacturing costs. Figure 1 and Figure 3 As shown, the fastening frame 3 has at least two parts or components 3A and 3B. The explosion-proof plate here is rectangular, and the embrittlement extends in a U shape along one short side and two long sides. The fastening frame 3 is divided into four parts here, namely the web 30, the wing plate 31, the wing plate 32 and the fourth part 3B. The first component 3A of the fastening frame 3 is U-shaped and extends along the U-shaped perimeter of the embrittlement zone 11. The fastening frame 3 does not cover the embrittlement zone 11, only the interface seal 4 and its first part 40, second part 41 and third part 42 cover the embrittlement zone. Figure 3In the diagram, the brittle zone 11 is shown, but it is not actually visible because it is covered by the joint seal 4. The first component 3A consists of three parts, a web 30 and two opposite wings 31 and 32, which form three independent parts but are butted at the corners of the U and are connected to each other after assembly (when the explosion-proof plate is bolted to the structure). The wings 31 and 32 of the first component 3A of the fastening frame extend along the two long sides of the explosion-proof plate and the web 30 extends along one short side, which correspond to the sides forming the brittle zone 11. In the event of excessive pressure, the U-shaped brittle zone 11 automatically breaks apart and the shell sheet opens and is fixed by the fourth side without the brittle zone as a connection point. Therefore, the connection point of the breaking element 1' extends opposite the U shape, along the fourth side opposite the web 30 of the fastening frame and also along the fourth part 3B of the fastening frame. The fourth part 3B of the fastening frame is not bolted to the first component 3A (nor is it butted), in particular to the fixing between the directly adjacent parts, the wing 31 and the wing 32. The fastening frame 3 is preferably provided with slits 33 along its thickness and width, which lead to the outside of the explosion-proof plate. These slits 33 form grooves and channels on the fastening frame 3, allowing water to drain and preventing water from accumulating around the shell. Since the fourth part 3B is not connected to the other parts of the fastening frame (wing 31 and wing 32), these slits are provided here.

[0061] The geometric shape of the interface seal 4 is consistent with the geometric shape of the fastening frame 3. The interface seal 4 is sandwiched between the peripheral shoulder 14 and the fastening frame 3 and covers the brittle area 11. Therefore, the interface seal 4 extends from the fastening frame 3 and faces the inner wall 13 (such as Figure 1 , Figure 3 and Figure 4 ). The interface seal 4 protrudes from the fastening frame 3 by several millimeters. The interface seal 4 is preferably glued to the upper end surface 14A of the peripheral shoulder 14. However, there is no interface seal at the gap 33 of the fastening frame 3, so water will flow from the plane of the shell bottom surface 13A to the outside of the shell. The interface seal 4 is also divided into several (four) parts here, a first part 40, a second part 41, a third part 42 and a fourth part 43 (in Figure 3 The four parts (shown by dotted lines in the figure, located below the fastening frame 3) basically correspond to the web 30, wing 31, wing 32 and fourth part 3B of the fastening frame 3. However, the four parts (first part 40, second part 41, third part 42 and fourth part 43) are completely butted together around the entire periphery, and are designed to butt together outside the corners so as to systematically cover the corners of the peripheral boss 14. Preferably, the four parts (first part 40, second part 41, third part 42 and fourth part 43) are butted together by mutual cooperation in a concave-convex form 44. The interface seal 4 (such as Figure 3The connecting line of the connecting shape 44 of the parts (shown) (the first part 40, the second part 41, the third part 42 and the fourth part 43) is not at a right angle to the butt connection line of the parts of the fastening frame, especially the butt connection line of the three U-shaped parts (the web 30, the wing plate 31, the wing plate 32) of the fastening frame.

[0062] The support seal 5 provides a peripheral seal between the explosion vent 1 (particularly the housing) and the protected structure. The support seal 5 is made of a compressible, (possibly) food-grade material, which itself is made of known materials. The support seal 5 is preferably bonded to the housing, and preferably bonded during the manufacture of the explosion vent. The support seal 5 is integrally connected to the lower end face 14B of the entire peripheral shoulder 14 and at least a portion of the thermal insulation material 2 (e.g. Figure 4 shown).

[0063] according to Figure 2 and Figure 4 In the installation example shown, the support seal 5 forms a frame having the same shape as the periphery of the housing. The support seal 5 covers the lower end surface 14B of the peripheral shoulder 14, covers the embrittlement zone 11 and extends beyond the insulating material 2. The frame-shaped support seal 5 can be divided into several parts, such as a first part 51, a second part 52, a third part 53 and a fourth part 54, a total of four parts (such as Figure 2 As shown), they are connected together to form a continuous sealing surface. Figure 3 The dotted line in the figure represents the support seal 5, which is located below the outer peripheral shoulder 14 of the housing. The components of the support seal 5 preferably adopt a concave-convex connection shape 50'. The connection line of the connection shape 50' of the support seal 5 is offset relative to the connection line of the connection shape 44 of each part 40-43 of the interface seal 4 (as shown in FIG. Figure 3 shown).

[0064] according to Figure 5 and Figure 6 In another installation example shown, the support seal 5 is in the form of a solid plate, which covers the lower end surface 14B of the peripheral shoulder 14, covers the embrittlement area 11, and covers the insulating material 2. The support seal plate 5 is preferably adhered to the insulating material 2 (the bottom surface) by double-sided tape or the like.

[0065] The entire periphery of the explosion-proof panel 1 is fixed by a fastening device, mainly by bolts (not shown in the figure). For example, the fastening device includes a screw and a nut, the screw head of which is accessible from the outside of the explosion-proof panel 1, at the fastening frame. The nut is connected to the screw body and is located on the inside of the structure opposite to the screw head. Preferably, there is a washer between the screw head and the fastening frame 3.

[0066] Each fixing hole 10 on the housing corresponds to a hole 35 on the fastening frame 3, a hole 45 on the interface seal 4 and a hole 50 on the support seal 5. The diameters of the holes 45 and 50 of the interface seal 4 and the support seal 5 correspond to the cross-section of a tightening device (such as a screw or a threaded rod) so that it can be inserted into the fixing hole 10 of the explosion-proof plate, so that when the interface seal and the support seal are compressed, the sealing material will be inserted into the thread of the tightening device, thereby ensuring a perfect seal.

[0067] The explosion-proof panel 1 may include a fastening and limiting device 15 ( Fig.10 The invention discloses a modification of the invention, so that when the operator fixes the explosion-proof plate, he can feel that the tightening torque of the fastening limiter 15 is just right to compress the supporting seal 5 in the best way. These fastening limiters 15 are formed integrally with the housing, especially with the peripheral boss 14 around the fixing hole 10. The fastening limiter 15 forms evenly distributed bosses around each fixing hole 10, so as to compress the interface seal 4 and the supporting seal 5 with uniform thickness.

[0068] The tightening limiter 15 is preferably arranged on the upper surface 14A and the lower surface 14B of the peripheral shoulder 14, respectively, so as to calibrate the pressing force of the supporting seal 5 and the interface seal 4 at the same time. The calibration of a certain part of the peripheral shoulder 14 and the calibration of the brittle area 11 covered by the interface seal 4 and the supporting seal 5 on each side of the shoulder can prevent them from exerting too much pressure on the above-mentioned brittle area 11, otherwise the brittle area 11 may be torn by excessive compression. When the thickness of the interface seal 4 and the supporting seal 5 is 4 mm, the height of the boss is 2 mm.

[0069] Figure 7 and Figure 8 A modified example design of the shell 1' is shown, which is closed relative to the bottom 12 by a solid rigid plate 16. The rigid plate 16 is usually a metal plate. The thermal insulation material 2 will be inserted into the internal space V of the shell before the rigid plate 16 is fixed. The rigid plate 16 preferably includes a peripheral convex corner 16' perpendicular to its inner surface 16A, so that the rigid plate 16 is combined with the shell through the peripheral convex corner 16', and the peripheral convex corner 16' enters the internal space V of the shell and abuts against the peripheral wall 13. The rigid plate 16 is fixed to the shell by a fastener 17 integrated with the inside of the shell, and the fastener 17 includes a fixing part 17' parallel to the plane of the rigid plate 16 and opposite to the base 12, preferably coplanar with the peripheral shoulder 14. The fastener 17 is preferably arranged at the four corners of the shell from both sides of one corner of the peripheral wall 13. The fastener 17 is preferably fixed to the peripheral wall 13 by welding.

[0070] Fig. 9 and Fig.10Another modification of the explosion-proof panel 1 is shown, which not only has insulation material on the upper surface of the housing sealing groove, but also has additional insulation material 2' on the lower surface of the explosion-proof panel, that is, the inner side of the protected structure. The additional insulation material 2' is preferably connected to the lower surface of the explosion-proof panel as a whole and adhered to the supporting seal 5 by bonding.

[0071] for Fig. 9 The explosion-proof plate 1, the supporting seal 5 forms a supporting seal frame 5 (such as Figure 2 As shown in FIG. 5 , the additional thermal insulation material 2' is bonded to the supporting sealing frame 5, and an air layer 51 is created on the contact surface opposite to the thermal insulation material 2 and inside the supporting sealing frame 5. For example, each surface of the supporting sealing frame 5 has double-sided adhesive tape, which is connected to the upper thermal insulation material 2 on the upper surface on the one hand, and connected to the additional thermal insulation material 2' on the lower surface on the other hand.

[0072] for Fig.10 The explosion-proof plate 1 in the support seal 5 forms a solid support seal plate 5 (such as Figure 6 As shown), the additional insulation material 2' is bonded to the bottom surface of the supporting sealing plate 5, preferably along the entire surface thereof. For example, the additional insulation material 2' is bonded to the supporting sealing plate 5 using double-sided adhesive.

[0073] Fig.11 and Fig.12 Another (non-limiting) arrangement example is shown, in which the additional thermal insulation material 2' is placed below the shell 1' (bottom surface). Here, the connection point of the explosion-proof panel is located on the long side and is arranged along the fourth part 3B isolated from the rest of the fastening frame. The explosion-proof panel 1 includes an insulation box 6, preferably a metal box body, which is arranged around the shell opposite the main surface 12. The internal accommodating space of the insulation box 6 is V', which is filled with additional thermal insulation material 2'. The insulation material 2 and the additional insulation material 2' can be the same material, the insulation material 2 fills the internal space V of the shell, and the additional insulation material 2' fills the internal space V' of the insulation box 6. The insulation box 6 is arranged opposite to the interior of the shell 1 without passing outside the embrittlement zone 11. The outer wall 60 of the insulation box 6 is preferably basically parallel to the outer peripheral wall 13 of the shell.

[0074] In order to fix the insulation box 6, the housing preferably comprises a metal frame 18, which is connected to the inside of the housing and to the peripheral wall 13 by means of fixing tabs 18' welded to the inside of the main surface 12. The insulation box 6 has a closed bottom surface 61, a peripheral wall 60 (which has the same thickness as the additional insulation material layer) and an inner peripheral flange 62 opposite to the bottom surface and facing the inside of the box body and perpendicular to the peripheral wall 60, so as to fix the insulation box 6 to the frame 18 of the housing. The insulation box 6 preferably also comprises a reinforcement frame 63, which is fixed to the peripheral flange 62 (preferably also fixed to the inside of the peripheral wall 60 of the insulation box 6 by means of connecting tabs 63') and is connected and fixed to the frame 18 of the housing. The supporting seal 5 here forms a supporting frame, which extends to the entire lower surface of the peripheral shoulder 14, covers the embrittlement zone 11, and extends opposite to the frame 18 of the housing and the reinforcement frame 63 of the peripheral flange 62. The thermal insulation box 6 is fixed as follows: the frame 18 of the shell is connected to the inner side of the shell; the frame 63 of the thermal insulation box 6 is removed from the thermal insulation box 6, and first fixed separately to the frame 18 of the shell, for example, by screws; the additional insulation material 2' is loaded into the thermal insulation box 6, and then the thermal insulation box 6 is installed back on the frame 63, preferably plugged into the frame 63 for immediate fixation (for example, a socket is provided on the thermal insulation box 6, and the fixed connecting piece 63' can be inserted into the socket), and mechanically connected through the rivets on the fixed connecting piece 63' on the frame 63.

[0075] Finally, according to the geometry and size of the opening of the structure to be protected, when the explosion-proof plate 1 includes a thermal insulation box 6 below the shell and inside the inner section defined by the embrittlement zone 11, the thermal insulation box 6 should be designed (in shape and size) to pass through the inner section defined by the embrittlement zone 11 when the embrittlement zone 11 is broken and the shell-thermal insulation box assembly rotates, as shown in Fig.13 Therefore, the shape and geometry of the insulation box will be adjusted so that when the shell is opened and the insulation box 6 starts to move (rotate) outward, the insulation box 6 can pass through the inner cross section defined by the embrittlement zone 11, that is, it can pass through the inner range defined by the embrittlement zone 11, as shown in FIG. Fig.13 For example, the insulation box 6, which is generally in the shape of a rectangular parallelepiped, has a beveled edge on the peripheral wall 60 opposite to the open connection point of the shell 1', which is close to the bottom surface 61 (inside the box body).

[0076] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Explosion-proof panel, including: A breaking element (1'), the breaking element (1') comprising an embrittled zone (11) and a peripheral shoulder (14), a fastening frame (3), the fastening frame (3) being mounted on the peripheral shoulder (14), a thermal insulation material (2) connected to the breaking element (1'), It is characterized in that The breaking element (1') has an integrally manufactured continuous three-dimensional integrally formed surface, forming a shell, the shell includes a main surface (12) and a peripheral wall (13) connected to the main surface, the peripheral wall (13) is continuous and closed over its entire circumference, the peripheral shoulder (14) is opposite to the main surface (12) and connected to the peripheral wall (13) and protrudes outward, the peripheral shoulder (14) constitutes the peripheral surface of the breaking element (1'), the shell provides an internal space (V), and the thermal insulation material (2) is installed in the internal space.

2. The explosion-proof panel according to claim 1, characterized in that: The invention also comprises an interface seal (4), which is sandwiched between the peripheral shoulder (14) and the fastening frame (3) and covers the brittle area (11).

3. The explosion-proof panel according to claim 1, characterized in that: The outer peripheral wall (13) is substantially perpendicular to the main surface (12), the outer peripheral wall (13) is perpendicular to the outer peripheral shoulder (14), and the shell is manufactured by a stamping process.

4. The explosion-proof panel according to any one of claims 1 to 3, characterized in that: The height of the peripheral wall (13) is between 20 and 100 mm.

5. The explosion-proof panel according to claim 1, characterized in that: The thermal insulation material (2) is adhered to the inner side of the main surface (12).

6. The explosion-proof panel according to claim 1, characterized in that: The peripheral boss (14) includes a plurality of fixing holes (10), and a fastening and limiting device (15) is provided around the fixing holes (10).

7. The explosion-proof panel according to claim 1, characterized in that: It also includes a supporting seal (5), which is arranged below the peripheral shoulder (14), against the lower surface (14B) of the peripheral shoulder (14), and opposite to the mounting surface of the fastening frame (3).

8. The explosion-proof panel according to claim 7, characterized in that: The interface seal (4) extends onto at least a portion of the thermal insulation material, and the support seal (5) is fixed by bonding with an adhesive.

9. The explosion-proof panel according to claim 1, characterized in that: The supporting seal (5) is in the form of a frame, or the supporting seal (5) is a sealing plate which covers and continuously extends to the lower surface of the peripheral shoulder (14) and the entire thermal insulation material (2).

10. The explosion-proof panel according to claim 1, characterized in that: The explosion-proof plate comprises a rigid plate (16) which is pressed on the thermal insulation material (2) opposite to the main surface of the shell. The rigid plate (16) is fixed on a fixing plate (17) and is connected to the inner side (1') of the shell as a whole.

11. The explosion-proof panel according to claim 10, characterized in that: The rigid plate (16) is welded and fixed near the corner of the shell. The rigid plate (16) includes a peripheral convex corner (16'), and the peripheral convex corner (16') is tightly attached to the inside of the outer peripheral wall (13) of the shell.

12. The explosion-proof panel according to claim 7, characterized in that: It also includes an additional thermal insulation material (2'), which is installed below the plane of the peripheral shoulder (14). The additional thermal insulation material (2') is directly fixed to the thermal insulation material (2) in the shell, and / or fixed to the supporting seal (5) by bonding.

13. The explosion-proof panel according to claim 1, characterized in that: It also comprises a thermal insulation box (6) facing the inside of the shell, the thermal insulation box (6) contains additional thermal insulation material (2'), and the thermal insulation box (6) is fixed on the shell.

14. The explosion-proof panel according to claim 13, characterized in that: The temperature insulation box (6) is mechanically fixed to the shell through a connecting piece inside the shell.

15. The explosion-proof panel according to claim 13, characterized in that: The size of the insulation box (6) matches the size of the embrittlement zone (11), and the insulation box (6) is configured to be able to rotate through an inner cross-section defined by the embrittlement zone (11).

16. A storage structure, using the explosion-proof plate according to any one of claims 1 to 15, characterized in that: The storage structure (S) comprises at least one explosion-proof panel (1), and the storage structure (S) includes a silo, a hopper, a storage room, a mixer, a filter system, a pipeline, a bucket elevator or an ESS container.

17. A manufacturing method for manufacturing the explosion-proof panel according to any one of claims 1 to 15, characterized in that: The invention comprises the processing of prefabricated breaking elements (1') and fixing holes (10) and brittle zones (11) from a metal sheet, which is punched to form a three-dimensional shell with a continuous surface.

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