An assembled explosion-proof device and a mounting method

Abstract

The application discloses an assembled explosion-proof device and a mounting method, and belongs to the technical field of protective structures. The assembled explosion-proof device comprises an explosion-proof assembly and a fixing assembly. The explosion-proof assembly comprises a plurality of explosion-proof walls. Each explosion-proof wall comprises a frame and a plurality of explosion-proof units arranged in the frame. The plurality of explosion-proof units are connected in sequence, and the explosion-proof unit close to the frame is connected to the frame. The fixing assembly comprises a fixing piece and a rear-embedded piece for connecting an outer wall body. The rear-embedded piece is connected to the fixing piece, and the fixing piece is connected to the explosion-proof wall. The assembled explosion-proof device is mainly applied to explosion-proof protection of outdoor transformers in transformer substations. The assembled explosion-proof device can be integrally fixed on an existing transformer concrete firewall through the fixing assembly, has good overall stability and strong impact resistance. Meanwhile, the explosion-proof assembly is designed in a unit modularization mode, can be flexibly adapted to the protection of equipment of various sizes, is convenient to store and transport, and has a frame structure, is simple in form, is fast to install, and can quickly respond to explosion-proof scenes.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of protective structures, and in particular, the present application relates to an assembled explosion-proof device and a mounting method. BACKGROUND

[0002] It is urgent and important to consider explosion-proof protection for existing outdoor equipment of a substation. The primary equipment of the substation includes overhead cables, transformers, disconnectors, transformers, bus ducts, etc. These devices are involved in direct production, transmission, distribution and use of electric energy, and are mainly arranged outdoors. However, the current design does not consider explosion-proof design. If an explosion occurs, not only will the hit target substation equipment be destroyed, but the fragments and fire generated may also cause damage to other nearby equipment.

[0003] The assembled explosion-proof structure has the advantages of convenient transportation and quick assembly, and can meet the explosion-proof requirements of outdoor equipment of different specifications and sizes. For example, the patent "Lightweight assembled anti-explosion bullet emergency protection structure and mounting method" (Patent No. CN113513204A) proposes a fiber-reinforced foam aluminum gradient anti-explosion plate protection cuboid structure, which has the advantages of light weight and good integrity. However, this structure does not make use of the existing civil structure of the protection site, and is closed on five sides, which is not suitable for substations.

[0004] The form of the outdoor explosion-proof wall is flexible, and many new technologies and designs have appeared recently. The metal sandwich panel has the characteristics of light weight and strong energy absorption, and its application in explosion-proof walls can effectively improve the structural bearing capacity and energy dissipation performance. For example, the patent "High-strength lightweight large-deformation energy-dissipation explosion-proof hanging plate" (Patent No. CN111456357A) discloses an explosion-proof structure made of corrugated steel plate and polyurethane foam, which has the advantages of simple structure and light weight. However, the polyurethane foam contained therein has a self-ignition temperature of about 500°C, and the burning speed is relatively fast, which is not suitable for substations with high fire requirements.

[0005] In summary, the current explosion-proof structure design does not meet the actual use requirements of substations, so it is necessary to develop an explosion-proof structure that is easy to store and transport in peacetime, can be quickly assembled in wartime, has good fire performance, and can be quickly restored after a disaster. SUMMARY

[0006] The examples of the present application provide an assembled explosion-proof device and a mounting method, which can be fixed to an existing transformer concrete fire wall, and which adopts a unit modular design, can flexibly adapt to the protection of equipment of various sizes, is convenient to store and transport, and can be quickly installed to quickly respond to explosion-proof scenes.

[0007] The scheme of the examples of the present application is implemented through the following content.

[0008] The examples disclose an assembled explosion-proof device, comprising:

[0009] The explosion-proof assembly comprises a plurality of explosion-proof walls, each of which comprises a frame and a plurality of explosion-proof units arranged in the frame, the plurality of explosion-proof units are sequentially connected, and the explosion-proof unit close to the frame is connected to the frame;

[0010] The fixing assembly comprises a fixing member and a rear-embedded member for connecting the outer wall body, the rear-embedded member is connected to the fixing member, and the fixing member is connected to the explosion-proof wall.

[0011] Optionally, the explosion-proof unit comprises, from inside to outside along the thickness direction, a first steel plate layer, a foamed aluminum sandwich layer, a steel grating layer and a second steel plate layer which are sequentially arranged in layers.

[0012] Optionally, the steel grating layer comprises a plurality of square grid structures formed by crossing the flat steel in the transverse and longitudinal directions, and an inclined plate is welded in each square grid structure.

[0013] Optionally, the explosion-proof assembly further comprises a plurality of shear energy dissipation steel plates, and two adjacent explosion-proof units are connected through the plurality of shear energy dissipation steel plates, the shear energy dissipation steel plate comprises a connecting portion on both sides and an energy dissipation portion in the middle, and the energy dissipation portion has two opposite arc-shaped edges.

[0014] Optionally, the explosion-proof assembly further comprises a support frame, the support frame comprises a first inclined rod, a second inclined rod and a circular energy dissipator, the first inclined rod and the second inclined rod cross to form an X-shaped structure, and the two ends of the first inclined rod and the two ends of the second inclined rod are fixed to the four corners of the frame, the circular energy dissipator comprises a plurality of friction washers and high-strength bolts, and the first inclined rod, the second inclined rod and the plurality of friction washers are connected through the high-strength bolts.

[0015] Optionally, the explosion-proof assembly further comprises a plurality of node plates, and the explosion-proof unit close to the frame is connected to the frame through the node plate.

[0016] Optionally, the fixing assembly further comprises a U-shaped connecting piece, and the rear-embedded member is connected to the fixing member through the U-shaped connecting piece.

[0017] Optionally, the fixing assembly further comprises a post-expansion anchor bolt, and the rear-embedded member is used to connect the outer wall body through the post-expansion anchor bolt.

[0018] Optionally, the fixing assembly further comprises a plurality of corner codes, and the fixing member is connected to the explosion-proof unit through the plurality of corner codes.

[0019] In another aspect, the application also discloses a mounting method of the prefabricated explosion-proof device, which comprises the following steps: installing the rear-embedded member by laying a line first, calibrating the vertical steel column elevation and axis, installing the fixing member, and installing the frame beam and the frame column to form the frame, and then installing a plurality of explosion-proof units in each frame to form a plurality of explosion-proof walls.

[0020] The application has at least the following beneficial effects:

[0021] The assembled explosion-proof device of the present application is mainly applied to outdoor transformer explosion-proof protection of a transformer substation. The assembled explosion-proof device can be integrally fixed on an existing transformer concrete firewall through a fixing assembly. The stress can be transmitted to the concrete windproof column and base through the rear embedded part, so that the assembled explosion-proof device has good overall stability and strong impact resistance. At the same time, the explosion-proof assembly of the assembled explosion-proof device is built by multiple explosion-proof walls, and each explosion-proof wall is built by a frame and multiple explosion-proof units arranged in the frame. This makes the overall explosion-proof assembly adopt a unit modular design, which can flexibly adapt to the protection of equipment of various sizes, is convenient for storage and transportation, and the explosion-proof assembly is a frame structure, which is simple in form and quick to install, and can quickly respond to explosion-proof scenes.

[0022] The explosion-proof unit includes a foam aluminum sandwich layer, a steel grating layer, and two second steel plate layers. The foam aluminum sandwich layer can absorb explosion wave energy through local compression and overall bending to reduce impact damage. Foam aluminum is also a Class A fire-retardant material. If the equipment catches fire after an explosion, the foam aluminum sandwich layer can provide good insulation effect, and its light weight can reduce the weight of the explosion-proof wall itself. The steel grating layer can absorb explosion impact and consume fragment kinetic energy due to its relatively closed structure, thereby reducing secondary damage to the equipment caused by the explosion. The overall strength of the explosion-proof unit is high.

[0023] The adjacent two explosion-proof units are connected by a shear energy dissipation steel plate. The energy dissipation part of the shear energy dissipation steel plate is arc-shaped to achieve full-section yielding. It first yields by force through the intermediate weak part to transfer internal force to both sides to achieve energy dissipation, so that the loss is mainly concentrated in the energy dissipation steel plate, which is convenient for repair. When an explosion occurs, the explosion-proof wall can first enter the yield state to dissipate energy through the shear energy dissipation steel plate. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The structure diagram of the assembled explosion-proof device in the example of the present application is disclosed.

[0025] Figure 2 The sectional view of the connection of the assembled explosion-proof device in the example of the present application and the concrete firewall is disclosed.

[0026] Figure 3 The structure diagram of the shear energy dissipation steel plate in the example of the present application is disclosed.

[0027] Figure 4 The three-dimensional exploded view of the support frame in the example of the present application is disclosed.

[0028] Figure 5 The structure diagram of the connection of the U-shaped connecting piece, the rear embedded part, and the rear expanded base anchor bolt in the example of the present application is disclosed.

[0029] In the drawings, the components represented by each reference numeral are listed as follows:

[0030] 10 - assembled explosion-proof device;

[0031] 100 - explosion-proof assembly; 110 - explosion-proof wall; 111 - frame; 1111 - frame beam; 1112 - frame column; 112 - explosion-proof unit; 1121 - first steel plate layer; 1122 - aluminum foam sandwich layer; 1123 - steel grating layer; 1124 - second steel plate layer; 120 - joint plate; 130 - shear energy dissipation steel plate; 131 - connecting part; 132 - energy dissipation part; 1321 - arc-shaped edge; 140 - support frame; 141 - first inclined rod; 142 - second inclined rod; 143 - circular energy dissipation device; 1431 - friction pad; 1432 - high-strength bolt;

[0032] 200 - fixing assembly; 210 - fixing part; 220 - rear embedded part; 230 - corner code; 240 - U-shaped connecting part; 250 - rear expansion anchor bolt;

[0033] 300 - concrete fireproof wall. DETAILED DESCRIPTION

[0034] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0035] Please refer to Figures 1-2 , Figure 1 The structural schematic diagram of the assembled explosion-proof device 10 in the example of the present application is disclosed, Figure 2 The sectional view of the connection between the assembled explosion-proof device 10 in the example of the present application and the concrete fireproof wall 300 is disclosed.

[0036] The assembled explosion-proof device 10 comprises an explosion-proof assembly 100 and a fixing assembly 200.

[0037] The explosion-proof assembly 100 is built by a plurality of explosion-proof walls 110. In the embodiment as shown in Figure 1 , the explosion-proof assembly 100 is a cuboid structure surrounded by a plurality of explosion-proof walls 110. In some other embodiments of the present application, the explosion-proof assembly 100 can also be other shapes, for example, a polyhedral structure, a cylindrical structure, a spherical structure, etc.

[0038] Each explosion-proof wall 110 comprises a frame 111 and a plurality of explosion-proof units 112 arranged in the frame 111, the plurality of explosion-proof units 112 are connected in sequence, and the explosion-proof unit 112 close to the frame 111 is connected to the frame 111.

[0039] The frame 111 is the frame structure of the explosion-proof wall 110, which is used to define the shape of the explosion-proof wall 110 and increase the strength of the explosion-proof wall 110. The frame 111 can be constructed from at least one frame beam 1111 and at least one frame column 1112.

[0040] In such Figure 1 In the embodiment shown, the frame 111 includes two frame beams 1111 and two frame columns 1112, which are connected sequentially to form the frame 111.

[0041] Optionally, the two frame beams 1111 and the two frame columns 1112 are connected by gusset plates 120.

[0042] Optionally, both the frame beam 1111 and the frame column 1112 are made of steel square tubing.

[0043] The explosion-proof unit 112 includes a first steel plate layer 1121, a foamed aluminum sandwich layer 1122, a steel grating layer 1123, and a second steel plate layer 1124 arranged sequentially from the inside to the outside along the thickness direction. The foamed aluminum sandwich layer 1122 is fixedly connected to the first steel plate layer 1121 and the steel grating layer 1123 by welding, and the steel grating layer 1123 is fixedly connected to the second steel plate layer 1124 by bolts.

[0044] Among them, the steel grating layer 1123 includes multiple square grid structures formed by the cross arrangement of flat steel in the transverse and longitudinal directions, and each square grid structure is welded with an inclined plate.

[0045] Optionally, the steel grating specifications are G403 / 50 / 100FG, meaning the flat steel is 40mm high, 3mm thick, with a spacing of 50mm between two flat steels and 100mm between two twisted steels, and the surface is galvanized. A diagonal steel plate is welded into each flat steel grid, and the mesh structure allows for multiple reflections of fragments during an explosion, reducing kinetic energy.

[0046] The aluminum foam sandwich layer 1122 can absorb the energy of the explosion wave and reduce impact damage through local compression and overall bending. Aluminum foam is also a Class A flame-retardant and fireproof material. If the equipment catches fire after the explosion, the aluminum foam sandwich layer 1122 can provide a good insulation effect. At the same time, its light weight can reduce the weight of the explosion-proof wall 110 itself. The steel grating layer 1123, due to its relatively closed structure, can absorb the impact of the explosion and consume the kinetic energy of the fragments, thereby reducing the secondary damage to the equipment caused by the explosion. The explosion-proof unit 112 has high overall strength.

[0047] Optionally, the explosion-proof unit 112 near the frame 111 is connected to the frame 111 via the node plate 120.

[0048] like Figures 1-3 As shown, Figure 3A structural diagram of the shear energy dissipation steel plate 130 in the examples of the present application is disclosed. Two adjacent explosion-proof units 112 are connected by a plurality of shear energy dissipation steel plates 130, the shear energy dissipation steel plate 130 comprising a connecting portion 131 on both sides and an energy dissipation portion 132 in the middle, the energy dissipation portion 132 having two opposite arc-shaped edges 1321.

[0049] The energy dissipation portion of the shear energy dissipation steel plate 130 is arc-shaped to achieve full-section yielding, which transmits internal force to both sides through the middle weak portion to achieve energy dissipation; when an explosion occurs, the explosion-proof wall 110 can enter the yielding state and dissipate energy through the shear energy dissipation steel plate 130, so that the loss is mainly concentrated in the energy dissipation steel plate, facilitating repair. The shear energy dissipation steel plate 130 is fixed on two adjacent explosion-proof units 112 by tension bolts to realize the connection of the two adjacent explosion-proof units 112.

[0050] Optionally, the shear energy dissipation steel plate 130 is made of Q235 and has a thickness of 8 mm.

[0051] In the embodiment shown in Figure 1 , each explosion-proof wall 110 comprises six explosion-proof units 112, each explosion-proof unit 112 is arranged along the longitudinal direction, and the six explosion-proof units 112 are arranged in sequence along the transverse direction. The left side of the first explosion-proof unit 112 and the frame column 1112 are fixedly connected by seven node plates 120, the right side of the first explosion-proof unit 112 is fixedly connected to the left side of the second explosion-proof unit 112 by four shear energy dissipation steel plates 130, the right side of the second explosion-proof unit 112 is fixedly connected to the left side of the third explosion-proof unit 112 by four shear energy dissipation steel plates 130, the right side of the third explosion-proof unit 112 is fixedly connected to the left side of the fourth explosion-proof unit 112 by four shear energy dissipation steel plates 130, the right side of the fourth explosion-proof unit 112 is fixedly connected to the left side of the fifth explosion-proof unit 112 by four shear energy dissipation steel plates 130, the right side of the fifth explosion-proof unit 112 is fixedly connected to the left side of the sixth explosion-proof unit 112 by four shear energy dissipation steel plates 130, and the right side of the sixth explosion-proof unit 112 and the frame column 1112 are fixedly connected by seven node plates 120.

[0052] It should be noted that the explosion-proof wall 110 of the present application can be designed as a plurality of frame beams 1111, a plurality of frame columns 1112 and a plurality of explosion-proof units 112 according to requirements (the required enclosure size on site), and the shape and connection method of the explosion-proof unit 112 are not limited by the present application.

[0053] Please refer to Figure 1 and 4 , Figure 4A three-dimensional exploded schematic view of the support frame 140 in the example of the present application is disclosed. The support frame 140 comprises a first diagonal rod 141, a second diagonal rod 142, and a circular energy dissipation device 143. The first diagonal rod 141 and the second diagonal rod 142 intersect to form an X-shaped structure, and the two ends of the first diagonal rod 141 and the two ends of the second diagonal rod 142 are fixed to the four corners of the frame 111, respectively. The circular energy dissipation device 143 comprises a plurality of friction pads 1431 and high-strength bolts 1432, and the first diagonal rod 141, the second diagonal rod 142, and the plurality of friction pads 1431 are connected by the high-strength bolts 1432.

[0054] Optionally, the material of the friction pads 1431 is stainless steel, the material of the support diagonal rods is Q235 steel, and the high-strength bolts 1432 are M24 pressure type high-strength bolts.

[0055] The friction pads 1431 in the support frame 140 can be in contact with the first diagonal rod 141 and the second diagonal rod 142 by the pre-tightening force of the high-strength bolts 1432, and can dissipate energy by friction when torsion occurs, so that the support frame 140 can deform when subjected to an explosion, drive the friction hinge to rotate to dissipate energy, and increase the lateral stiffness of the structure by fixing the two ends of the first diagonal rod 141 and the two ends of the second diagonal rod 142 to the four corners of the frame 111, respectively.

[0056] Please continue to refer to Figures 1-2 The fixing assembly 200 comprises a fixing member 210 and a rear-embedded member 220 for connecting an outer wall body. The rear-embedded member 220 is connected to the fixing member 210, and the fixing member 210 is connected to the explosion-proof wall 110.

[0057] The fixing member 210 is connected to the explosion-proof unit 112 by a plurality of corner codes 230, and the edges of the fixing member 210 are connected to the frame 111, specifically to the frame beams 1111 and the frame columns 1112.

[0058] Optionally, the fixing member 210 comprises a steel joist, which can be a channel steel.

[0059] Optionally, the rear-embedded member 220 comprises a rear-embedded plate, which can be a galvanized steel plate with a size of 200mm×200mm×10mm (length×width×thickness).

[0060] Please refer to Figure 2 and 5 , Figure 5 A structural schematic view of the connection of the U-shaped connecting member 240, the rear-embedded member 220, and the post-expansion bottom anchor 250 in the example of the present application is disclosed. The fixing member 210 is connected to one end of the U-shaped connecting member 240 by a bolt, the other end of the U-shaped connecting member 240 is connected to the rear-embedded member 220 by the post-expansion bottom anchor 250, and the post-expansion bottom anchor 250 passes through the rear-embedded member 220 for fixing to the concrete firewall 300.

[0061] Optionally, the specification of the post-expanding bottom anchor 250 can be M12x130.

[0062] The U-shaped connecting piece 240 as the connecting piece has good deformation capacity, and when an explosion occurs, the U-shaped connecting piece 240 plastically deforms by compression bending or tension bending to dissipate energy, and it can also dissipate energy impact capacity through friction at the bolt connection. At the same time, the U-shaped connecting piece 240, in combination with the constraint of the post-embedded part 220, can achieve further energy dissipation under impact, and through the bolt connection, it is also convenient to replace in time after the explosion.

[0063] Please refer to Figure 1 and 2 The assembled explosion-proof device 10 of the embodiment of the application is used for being fixed on an existing transformer concrete firewall 300, wherein the explosion-proof assembly 100 is a cuboid enclosure structure surrounded by four explosion-proof walls 110, and the top surface and the bottom surface of the cuboid structure are open, the first side surface of the cuboid enclosure structure is provided with the fixing assembly 200, and the cuboid enclosure structure is connected to the concrete firewall 300 at the first side surface, the first side surface is parallel to the concrete firewall 300, and the explosion-proof units 112 on the first side surface are connected through the corner code 230 and the fixing piece 210; the cuboid enclosure structure further includes two second side surfaces and third side surfaces perpendicular to the concrete firewall 300, the explosion-proof units 112 on the second side surface and the third side surface close to the frame 111 are connected to the frame 111 through the node plate 120, adjacent two explosion-proof units 112 are connected through a plurality of shear energy dissipation steel plates 130, and the support frame 140 is further installed on the second side surface and the third side surface.

[0064] The application further provides a mounting method of the assembled explosion-proof device as described above, which comprises the following steps:

[0065] S1, measuring and installing a post-embedded part and a U-shaped connecting piece after line laying;

[0066] S2, calibrating the elevation and axis of the vertical steel stand column, installing a frame beam and a frame column to form a frame, and installing a fixing piece;

[0067] S3, installing a plurality of explosion-proof units in each frame to form a plurality of explosion-proof walls;

[0068] S4, installing a support frame;

[0069] In the step S1 of measuring and laying a line, the position of the post-embedded part is determined according to the positioning of the explosion-proof unit and the division line, the post-embedded part is connected to the concrete firewall through a post-expanding bottom anchor, and the U-shaped connecting piece is bolted and connected to the post-embedded part and then welded and reinforced.

[0070] In S2, the vertical frame columns are first adjusted and fixed, and then the frame beams are installed. The square tubes of the frame columns and the steel square tubes of the frame beams are connected by node plates. The node plates are installed by bolts, and then the joints are reinforced by welding. Finally, the fasteners are fixed to the U-shaped connectors by bolts.

[0071] In S3, the explosion-proof unit is installed into the fastener and frame according to the design and fixed with corner brackets and screws. Shear energy-consuming steel plates are installed between two adjacent explosion-proof units by bolts.

[0072] In S4, before the support frame is installed, a preload is applied to the high-strength bolts on the circular energy dissipator to generate friction when the sliding main board slides, thus determining the positions of the first and second inclined rods. The first and second inclined rods are then fixed to the frame with bolts.

[0073] In summary, the prefabricated explosion-proof device of this application is mainly used for explosion-proof protection of outdoor transformers in substations. It can be fixed to the existing concrete firewall of the transformer through fixing components. The force can be transferred to the concrete windproof column and base through the post-installed embedded parts, so that the prefabricated explosion-proof device has good overall stability and strong impact resistance. At the same time, the explosion-proof component of the prefabricated explosion-proof device is constructed from multiple explosion-proof walls, and each explosion-proof wall is constructed from a frame and multiple explosion-proof units set in the frame. This allows the explosion-proof component to adopt a modular design, which can flexibly adapt to the protection of equipment of various sizes, facilitates storage and transportation, and the explosion-proof component has a frame structure, which is simple in form, quick to install, and can quickly respond to explosion-proof scenarios. In addition, the prefabricated explosion-proof device of this application adds an explosion-proof zone to the original fire protection zone of the transformer box area. Through multi-level energy dissipation design, it improves the deformation and energy dissipation capacity of the entire structure, reduces the damage of explosion impact, and the overall structure is fireproof, which can control the explosion and its secondary disasters within a limited space, thereby protecting other equipment in the surrounding area. All energy-consuming components are detachable and replaceable, and the bolted connection of the steel structure and the splicing method of the explosion-proof wall allow for convenient storage during peacetime and quick assembly during wartime.

[0074] The embodiments described above with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0075] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, one or more embodiments have been described above with reference to the accompanying drawings. Throughout the description, similar reference numerals are used to denote similar components. In the foregoing description, numerous specific details have been set forth for illustrative purposes in order to provide a more thorough understanding of one or more embodiments. However, it will be apparent that one or more embodiments may be practiced in various circumstances without these specific details, and the embodiments may be combined with and referenced to each other without contradiction.

[0076] In this application, unless otherwise clearly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0077] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described.

[0078] In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0079] The above detailed description of the embodiments shown in the drawings illustrates the structure, features and effects of the present application. The above description is only the preferred embodiment of the present application, but the present application is not limited by the drawings shown. Any changes or modifications made in accordance with the concept of the present application, or equivalent embodiments with equivalent changes, are still within the scope of the present application.

Claims

1. A modular explosion protection device, characterized in that The assembled explosion-proof device comprises: An explosion-proof assembly comprising a plurality of explosion-proof walls, each of which comprises a frame and a plurality of explosion-proof units arranged in the frame, the plurality of explosion-proof units being connected in sequence, and the explosion-proof unit close to the frame being connected to the frame; The explosion-proof assembly further comprises a plurality of shear energy dissipation steel plates, and two adjacent explosion-proof units are connected by the plurality of shear energy dissipation steel plates, the shear energy dissipation steel plate comprising connecting portions on both sides and an energy dissipation portion in the middle, the energy dissipation portion having two opposite arc-shaped edges; A fixing assembly comprising a fixing member and a rear-embedded member for connecting an outer wall body, the rear-embedded member being connected to the fixing member, and the fixing member being connected to the explosion-proof wall.

2. The assembled explosion protection device according to claim 1, characterized in that The explosion-proof unit comprises a first steel plate layer, a foam aluminum sandwich layer, a steel grating layer and a second steel plate layer arranged in sequence from inside to outside along the thickness direction.

3. The assembled explosion protection device according to claim 2, characterized in that The steel grating layer comprises a plurality of square grid structures formed by the cross arrangement of flat steels in the transverse and longitudinal directions, and each square grid structure is welded with an inclined plate.

4. The assembled explosion protection device according to claim 1, characterized in that The explosion-proof assembly further comprises a support frame, the support frame comprising a first inclined rod, a second inclined rod and a circular energy dissipator, the first inclined rod and the second inclined rod intersecting to form an X-shaped structure, and the two ends of the first inclined rod and the two ends of the second inclined rod being fixed to the four corners of the frame respectively, the circular energy dissipator comprising a plurality of friction washers and high-strength bolts, the first inclined rod, the second inclined rod and the plurality of friction washers being connected by the high-strength bolts.

5. The assembled explosion protection device according to claim 1, characterized in that The explosion-proof assembly further comprises a plurality of node plates, and the explosion-proof unit close to the frame is connected to the frame by the node plate.

6. The assembled explosion protection device according to claim 1, characterized in that The fixing assembly further comprises a U-shaped connecting member, and the rear-embedded member is connected to the fixing member by the U-shaped connecting member.

7. The assembled explosion protection device according to claim 1, characterized in that The fixing assembly further comprises a post-expansion anchor bolt, and the rear-embedded member is used to connect the outer wall body by the post-expansion anchor bolt.

8. The assembled explosion protection device according to claim 1, characterized in that The fixing assembly further comprises a plurality of corner codes, and the fixing member is connected to the explosion-proof unit by the plurality of corner codes.

9. A method of installing an assembled explosion protection device according to any one of claims 1 to 8, characterized in that The installation method of the assembled explosion-proof device comprises: first, installing the rear-embedded member by laying a line, then calibrating the vertical steel column elevation and axis, installing the fixing member, and installing the frame beam and frame column to form the frame, and then installing the plurality of explosion-proof units in each frame to form a plurality of explosion-proof walls.

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