Fabricated explosion-proof device and mounting method

Abstract

The invention discloses an assembly type explosion-proof device and an installation method, and belongs to the technical field of protection structures. The assembly type anti-explosion device comprises an anti-explosion assembly and a fixing assembly, the anti-explosion assembly comprises a plurality of anti-explosion walls, each anti-explosion wall comprises a frame and a plurality of anti-explosion units arranged in the frame, the anti-explosion units are sequentially connected, and the anti-explosion units close to the frame are connected to the frame; the fixing assembly comprises a fixing part and a rear embedded part used for being connected with the outer wall body, the rear embedded part is connected to the fixing part, and the fixing part is connected to the explosion-proof wall. The assembly type explosion-proof device is mainly applied to explosion-proof protection of an outdoor transformer of a transformer substation, can be integrally fixed to an existing transformer concrete firewall through the fixing assembly, and is good in overall stability and high in impact resistance; meanwhile, the whole explosion-proof assembly adopts a unit modular design, can be flexibly adapted to protection of equipment of various sizes, is convenient to store and transport, is of a frame structure, is simple in form and quick to mount, and can quickly cope with 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 an installation method. Background Art

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

[0003] Prefabricated explosion-proof structures have the advantages of easy transportation and quick assembly, and can meet the explosion-proof requirements of outdoor materials and equipment of different specifications and sizes. For example, the patent "A lightweight prefabricated explosion-proof and bullet-proof emergency protection structure and installation method" (patent number: CN113513204A) proposes a fiber-reinforced foam aluminum gradient explosion-proof plate protective rectangular structure, which has the advantages of light weight and good integrity. However, this structural form does not utilize the existing civil engineering structure of the protection site and is closed on five sides, so it is not suitable for substations.

[0004] Outdoor explosion-proof walls are flexible in form, and many new processes and designs have emerged. Among them, metal sandwich panels are light in weight and strong in energy absorption. Applying them to explosion-proof walls can effectively improve the structural bearing capacity and energy consumption performance. For example, the patent "High-strength, lightweight, large-deformation energy-consuming explosion-proof hanging board" (patent number: CN111456357A) publishes an explosion-proof structure made of corrugated steel plates and polyurethane foam and other materials, which has the advantages of simple structure and light weight. However, the polyurethane foam contained in it has a smoldering temperature of about 500°C and a fast burning speed, so it is not suitable for substations with high fire protection requirements.

[0005] In summary, the current explosion-proof structure design does not meet the actual use needs of substations. Therefore, it is necessary to develop an explosion-proof structure that is easy to store and transport in peacetime, quick to assemble in wartime, has good fire resistance, and can be quickly restored after a disaster. Summary of the invention

[0006] The example of the present application provides an assembled explosion-proof device and an installation method, which can be fixed on an existing transformer concrete firewall, and adopts a unit modular design, which can be flexibly adapted to the protection of equipment of various sizes, is easy to store and transport, is quick to install, and can quickly respond to explosion-proof scenarios.

[0007] The solution of this application example is implemented through the following contents.

[0008] The example discloses an assembled explosion-proof device, comprising: An explosion-proof assembly, the explosion-proof assembly includes a plurality of explosion-proof walls, each explosion-proof wall includes 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 units close to the frame are connected to the frame; The fixing assembly comprises a fixing part and a post-embedded part for connecting the outer wall, the post-embedded part is connected to the fixing part, and the fixing part is connected to the explosion-proof wall.

[0009] Optionally, the explosion-proof unit includes a first steel plate layer, a foam aluminum sandwich layer, a steel grating layer and a second steel plate layer which are sequentially stacked from inside to outside along the thickness direction.

[0010] Optionally, the steel grating layer includes a plurality of square lattice structures formed by flat steels being cross-arranged in the transverse and longitudinal directions, and an inclined plate is welded in each of the square lattice structures.

[0011] Optionally, the explosion-proof assembly further includes a plurality of shear energy-absorbing steel plates, and two adjacent explosion-proof units are connected by the plurality of shear energy-absorbing steel plates. The shear energy-absorbing steel plates include connecting parts located on both sides and an energy-absorbing part located in the middle, and the energy-absorbing part has two opposite arc-shaped edges.

[0012] Optionally, the explosion-proof assembly also includes a support frame, the support frame includes a first diagonal rod, a second diagonal rod and a circular energy absorber, the first diagonal rod and the second diagonal rod cross to form an X-shaped structure, and the two ends of the first diagonal rod and the two ends of the second diagonal rod are respectively fixed to the four corners of the frame, the circular energy absorber includes a plurality of friction gaskets and high-strength bolts, and the first diagonal rod, the second diagonal rod and the plurality of friction gaskets are connected by high-strength bolts.

[0013] Optionally, the explosion-proof assembly further comprises a plurality of node plates, and the explosion-proof units close to the frame are connected to the frame via the node plates.

[0014] Optionally, the fixing assembly further includes a U-shaped connecting piece, and the post-embedded piece is connected to the fixing piece via the U-shaped connecting piece.

[0015] Optionally, the fixing assembly further includes a rear bottom-enlarged anchor bolt, and the rear embedded part is used to connect the outer wall through the rear bottom-enlarged anchor bolt.

[0016] Optionally, the fixing assembly further includes a plurality of angle brackets, and the fixing member is connected to the explosion-proof unit via the plurality of angle brackets.

[0017] On the other hand, the present application also discloses a method for installing the assembled explosion-proof device as described above, which includes: first laying out the lines and installing the embedded parts, then calibrating the elevation and axis of the vertical steel columns, installing the fixings, as well as the frame beams and frame columns to form a frame, and then installing multiple explosion-proof units in each frame to form multiple explosion-proof walls.

[0018] This application has at least the following beneficial effects: The assembled explosion-proof device of the present application is mainly used for explosion-proof protection of outdoor transformers in substations. It can be fixed on the existing transformer concrete fire wall as a whole through a fixing component, and the force can be transmitted to the concrete windproof column and the base through the post-embedded parts, so that the assembled explosion-proof device has good overall stability and strong impact resistance. At the same time, the explosion-proof component of the assembled explosion-proof device is built up of multiple explosion-proof walls, and each explosion-proof wall is built up of a frame and multiple explosion-proof units arranged in the frame, which makes the explosion-proof component adopt a unit modular design as a whole, which can be flexibly adapted to the protection of equipment of various sizes and is convenient for storage and transportation. The explosion-proof component is a frame structure with a simple form and quick installation, which can quickly respond to explosion-proof scenarios.

[0019] Among them, the explosion-proof unit includes a foam aluminum sandwich layer, a steel grating layer and two second steel plate layers. Among them, the foam aluminum sandwich layer can absorb the energy of the explosion wave through local compression and overall bending to reduce impact damage. Foam aluminum is also a Class A flame retardant and fireproof material. If the equipment catches fire after the explosion, the foam aluminum sandwich layer can provide good isolation effect. At the same time, its light weight can reduce the weight of the explosion-proof wall itself; and the steel grating layer, due to its relatively closed structure, can absorb the impact of the explosion and consume the kinetic energy of fragments, thereby reducing the secondary damage of the explosion to the equipment. The overall strength of the explosion-proof unit is relatively high.

[0020] Two adjacent explosion-proof units are connected by shear energy-absorbing steel plates. The energy-absorbing part of the shear energy-absorbing steel plates is arc-shaped so as to achieve full-section yield. The middle weak part first yields under stress and transfers internal force to both sides to achieve energy dissipation, so that the loss is mainly concentrated on the energy-absorbing steel plates, which is convenient for repair. When an explosion occurs, the explosion-proof wall can first enter the yield state through the shear energy-absorbing steel plates to dissipate energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A structural schematic diagram of an assembled explosion-proof device in an example of the present application is disclosed.

[0022] Figure 2 A cross-sectional view of the connection between the assembled explosion-proof device and the concrete fire wall in the example of the present application is disclosed.

[0023] Figure 3 A structural schematic diagram of the shear energy dissipation steel plate in the example of this application is disclosed.

[0024] Figure 4 A three-dimensional exploded schematic diagram of the support frame in the example of the present application is disclosed.

[0025] Figure 5 A structural schematic diagram of the connection between a U-shaped connector, a post-embedded component and a post-enlarged bottom anchor bolt in an example of the present application is disclosed.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 10- Assembled explosion-proof device; 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-foam aluminum sandwich layer; 1123-steel grating layer; 1124-second steel plate layer; 120-node plate; 130-shear energy dissipation steel plate; 131-connecting part; 132-energy dissipation part; 1321-arc edge; 140-support frame; 141-first diagonal rod; 142-second diagonal rod; 143-circular energy dissipator; 1431-friction gasket; 1432-high-strength bolt; 200-fixing assembly; 210-fixing piece; 220-rear embedded piece; 230-angle code; 240-U-shaped connector; 250-rear bottom anchor bolt; 300-Concrete Firewall. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] See also Figure 1~2 , Figure 1 The schematic diagram of the structure of the assembled explosion-proof device 10 in the example of the present application is disclosed. Figure 2 A cross-sectional view of the assembled explosion-proof device 10 in the example of the present application being connected to the concrete fire wall 300 is disclosed.

[0029] The assembled explosion-proof device 10 includes an explosion-proof component 100 and a fixing component 200 .

[0030] The explosion-proof assembly 100 is constructed by a plurality of explosion-proof walls 110. Figure 1 In the illustrated embodiment, the explosion-proof assembly 100 is a rectangular parallelepiped structure surrounded by a plurality of explosion-proof walls 110. In some other embodiments of the present application, the explosion-proof assembly 100 may also be in other shapes, such as a polyhedral structure, a cylindrical structure, a spherical structure, and the like.

[0031] Each explosion-proof wall 110 includes a frame 111 and a plurality of explosion-proof units 112 disposed in the frame 111 . The plurality of explosion-proof units 112 are connected in sequence, and the explosion-proof units 112 close to the frame 111 are connected to the frame 111 .

[0032] The frame 111 is a 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 by at least one frame beam 1111 and at least one frame column 1112 .

[0033] In such Figure 1 In the illustrated embodiment, the frame 111 includes two frame beams 1111 and two frame columns 1112 , and the two frame beams 1111 and the two frame columns 1112 are sequentially connected to form the frame 111 .

[0034] Optionally, the two frame beams 1111 and the two frame columns 1112 are connected via a gusset plate 120 .

[0035] Optionally, the frame beam 1111 and the frame column 1112 are both steel square tubes.

[0036] The explosion-proof unit 112 includes a first steel plate layer 1121, a foam aluminum sandwich layer 1122, a steel grating layer 1123 and a second steel plate layer 1124 which are stacked in sequence from the inside to the outside along the thickness direction, wherein the foam 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.

[0037] Among them, the steel grating layer 1123 includes a plurality of square lattice structures formed by flat steels being cross-arranged in the horizontal and vertical directions, and an inclined plate is welded in each square lattice structure.

[0038] Optionally, the steel grating specification is G403 / 50 / 100FG, that is, the flat steel is 40mm high, 3mm thick, the spacing between two flat steels is 50mm, the spacing between two twisted steels is 100mm, and the surface is galvanized. An inclined steel plate is welded in each flat steel grid, and the mesh structure is used to achieve multiple reflections of fragments during explosion and reduce kinetic energy.

[0039] The foam aluminum sandwich layer 1122 can absorb the energy of the explosion wave through local compression and overall bending to reduce impact damage. Foam aluminum is also a Class A flame retardant and fireproof material. If the equipment catches fire after the explosion, the foam aluminum sandwich layer 1122 can provide 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 fragments, thereby reducing the secondary damage of the explosion to the equipment. The overall strength of the explosion-proof unit 112 is relatively high.

[0040] Optionally, the explosion-proof unit 112 close to the frame 111 is connected to the frame 111 through a node plate 120 .

[0041] like Figures 1 to 3 As shown, Figure 3 The schematic diagram of the structure of the shear energy dissipation steel plate 130 in the example of the present application is disclosed. Two adjacent explosion-proof units 112 are connected by a plurality of shear energy dissipation steel plates 130, and the shear energy dissipation steel plates 130 include connection parts 131 located on both sides and an energy dissipation part 132 located in the middle, and the energy dissipation part 132 has two opposite arc-shaped edges 1321.

[0042] The energy dissipation part of the shear energy dissipation steel plate 130 is arc-shaped so as to achieve full cross-section yielding. The middle weak part is first subjected to force yielding and transmits internal force to both sides to achieve energy dissipation. When an explosion occurs, the explosion-proof wall 110 can first enter the yielding state through the shear energy dissipation steel plate 130 to dissipate energy, so that the loss is mainly concentrated on the energy dissipation steel plate, which is easy to repair. The shear energy dissipation steel plate 130 is fixed to two adjacent explosion-proof units 112 by tension bolts to achieve the connection of two adjacent explosion-proof units 112.

[0043] Optionally, the shear energy dissipation steel plate 130 is made of Q235 and has a thickness of 8 mm.

[0044] In such Figure 1 In the embodiment shown, each explosion-proof wall 110 includes six explosion-proof units 112, each explosion-proof unit 112 is arranged in the longitudinal direction, and the six explosion-proof units 112 are arranged in sequence in the transverse direction. The left side of the first explosion-proof unit 112 is fixedly connected to the frame column 1112 through seven node plates 120, the right side of the first explosion-proof unit 112 is fixedly connected to the seat side of the second explosion-proof unit 112 through four shear energy dissipation steel plates 130, and the right side of the second explosion-proof unit 112 is fixedly connected to the third explosion-proof unit 112 through four shear energy dissipation steel plates 130. 2, the right side of the third explosion-proof unit 112 is fixedly connected to the seat side of the fourth explosion-proof unit 112 through four shear energy-absorbing steel plates 130, the right side of the fourth explosion-proof unit 112 is fixedly connected to the seat side of the fifth explosion-proof unit 112 through four shear energy-absorbing steel plates 130, the right side of the fifth explosion-proof unit 112 is fixedly connected to the seat side of the sixth explosion-proof unit 112 through four shear energy-absorbing steel plates 130, and the right side of the sixth explosion-proof unit 112 is fixedly connected to the frame column 1112 through seven node plates 120.

[0045] 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 the requirements (the enclosure size required on site), and the shape and connection method of the explosion-proof units 112 are not limited in the present application.

[0046] See also Figure 1 and 4 , Figure 4A three-dimensional exploded schematic diagram of the support frame 140 in the example of the present application is disclosed. The support frame 140 includes a first oblique rod 141, a second oblique rod 142 and a circular energy absorber 143. The first oblique rod 141 and the second oblique rod 142 cross to form an X-shaped structure, and both ends of the first oblique rod 141 and the second oblique rod 142 are respectively fixed to the four corners of the frame 111. The circular energy absorber 143 includes a plurality of friction pads 1431 and high-strength bolts 1432. The first oblique rod 141, the second oblique rod 142 and the plurality of friction pads 1431 are connected by the high-strength bolts 1432.

[0047] Optionally, the friction gasket 1431 is made of stainless steel, the supporting diagonal rod is made of Q235 steel, and the high-strength bolt 1432 is a M24 pressure-bearing high-strength bolt.

[0048] The friction gasket 1431 in the support frame 140 can contact the first diagonal rod 141 and the second diagonal rod 142 through the pre-tightening force applied by the high-strength bolts 1432, and friction energy is consumed when torsion occurs. Therefore, on the one hand, the support frame 140 can be deformed when subjected to explosion force, driving the friction hinge to rotate to achieve energy consumption. On the other hand, the two ends of the first diagonal rod 141 and the two ends of the second diagonal rod 142 are respectively fixed to the four corners of the frame 111 to increase the lateral stiffness of the structure.

[0049] Please continue reading Figure 1~2 The fixing assembly 200 includes a fixing member 210 and a post-embedded member 220 for connecting to the outer wall, the post-embedded member 220 is connected to the fixing member 210 , and the fixing member 210 is connected to the explosion-proof wall 110 .

[0050] The fixing member 210 is connected to the explosion-proof unit 112 via a plurality of angle brackets 230 , and the edge of the fixing member 210 is connected to the frame 111 , specifically the frame beam 1111 and the frame column 1112 .

[0051] Optionally, the fixing member 210 includes a steel keel, which may be a channel steel.

[0052] Optionally, the post-embedded component 220 includes a post-embedded plate, which may be a galvanized steel plate with a size of 200 mm×200 mm×10 mm (length×width×thickness).

[0053] See also Figure 2 and 5 , Figure 5 The schematic diagram of the structure of the U-shaped connector 240, the rear embedded component 220 and the rear bottom anchor bolt 250 in the example of the present application is disclosed. The fixing component 210 is connected to one end of the U-shaped connector 240 by bolts, and the other end of the U-shaped connector 240 is connected to the rear embedded component 220 by the rear bottom anchor bolt 250, and the rear bottom anchor bolt 250 passes through the rear embedded component 220 for fixing to the concrete fire wall 300.

[0054] Optionally, the specification of the rear bottom anchor bolt 250 may be M12×130.

[0055] The U-shaped connector 240 as a connector has good deformation ability. When an explosion occurs, the U-shaped connector 240 undergoes compression bending or tension bending plastic deformation to consume energy. It can also consume energy impact through friction at the bolt connection. At the same time, the U-shaped connector 240, combined with the constraint of the post-embedded part 220, can achieve further energy consumption under impact. At the same time, it is connected by bolts, which is also convenient for timely replacement after the explosion.

[0056] See also Figure 1 and 2 The assembled explosion-proof device 10 of the embodiment of the present application is used to be fixed on the existing transformer concrete fire wall 300, wherein the explosion-proof component 100 is a rectangular enclosure structure surrounded by four explosion-proof walls 110, and the top and bottom surfaces of the rectangular structure are open, and the first side of the rectangular enclosure structure is installed with a fixing component 200, and the rectangular enclosure structure is connected to the concrete fire wall 300 with its first side, the first side is parallel to the concrete fire wall 300, and the explosion-proof unit 112 on the first side is connected to the fixing member 210 through an angle code 230; the rectangular enclosure structure also includes two second sides and a third side perpendicular to the concrete fire wall 300, the explosion-proof units 112 on the second side and the third side close to the frame 111 are connected to the frame 111 through a node plate 120, and two adjacent explosion-proof units 112 are connected by a plurality of shear energy dissipation steel plates 130, and a support frame 140 is also installed on the second side and the third side.

[0057] The present application also provides a method for installing the assembled explosion-proof device as described above, which comprises the following steps: S1. Measure and lay out the embedded parts and U-shaped connectors after installation; S2. Calibrate the elevation and axis of the vertical steel columns, install frame beams and frame columns to form a frame, and install fixings; S3. Install multiple explosion-proof units in each frame to form multiple explosion-proof walls; S4, install the support frame; Among them, when measuring and laying out in S1, the position of the post-embedded parts needs to be determined according to the positioning of the explosion-proof unit and the dividing line. The post-embedded parts are connected to the concrete firewall through rear bottom anchor bolts, and the U-shaped connectors are bolted to the post-embedded parts and then welded for reinforcement.

[0058] In S2, the vertical frame columns are adjusted and fixed first, and then the frame beams are installed. The frame column square tubes and the frame beam steel square tubes are connected by node plates. The node plates are installed by bolts, and then welded and reinforced at the joints. Then, the fixings are fixed to the U-shaped connectors by bolts.

[0059] In S3, the explosion-proof unit is installed into the fixings and the frame according to the design method and fixed by angle brackets and screws. The shear energy-absorbing steel plate is installed between two adjacent explosion-proof units by bolts.

[0060] In S4, before the support frame is installed, a pre-tightening force is applied to the high-strength bolts on the circular energy absorber so that friction is generated when the sliding main board slides, the positions of the first diagonal rod and the second diagonal rod are determined, and the first diagonal rod and the second diagonal rod are fixed to the frame with bolts.

[0061] In summary, the assembled explosion-proof device of the present application is mainly used for explosion-proof protection of outdoor transformers in substations. It can be fixed on the existing transformer concrete firewall as a whole through a fixed component, and the force can be transmitted to the concrete windproof column and the base through the post-embedded parts, so that the assembled explosion-proof device has good overall stability and strong impact resistance; at the same time, the explosion-proof component 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, which makes the explosion-proof component adopt a unit modular design as a whole, which can be flexibly adapted to the protection of equipment of various sizes, convenient for storage and transportation, and the explosion-proof component is a frame structure with a simple form and quick installation, which can quickly respond to explosion-proof scenes. In addition, the assembled explosion-proof device of the present application adds explosion-proof partitions to the original fire partitions in the transformer box area, improves the deformation and energy consumption capacity of the entire structure through a multi-level energy consumption design, reduces the impact damage of the explosion, and at the same time, the overall structure is fireproof, which can control the explosion and its secondary disasters in a limited space, and realize the protection of other surrounding equipment. All energy-consuming accessories can be disassembled and replaced, and the bolt connection of the steel structure and the splicing of the explosion-proof wall can achieve convenient storage in peacetime and quick assembly in wartime.

[0062] The embodiments described above with reference to the accompanying drawings are exemplary and are only used to explain the present application, but should not be construed as limiting the present application.

[0063] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the foregoing describes one or more embodiments with reference to the accompanying drawings. Wherein, similar reference numerals throughout the text are used to refer to similar components. In the above description, for the purpose of explanation, many specific details are set forth in order to provide a more thorough understanding of one or more embodiments. However, it is obvious that in various cases, one or more embodiments can be practiced without these specific details, and each embodiment can be combined with each other and referenced to each other without contradiction.

[0064] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described.

[0066] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or apparatus.

[0067] The above describes in detail the structure, features and effects of the present application based on the embodiments shown in the drawings. The above is only a preferred embodiment of the present application, but the present application does not limit the scope of implementation to what is shown in the drawings. Any changes made in accordance with the concept of the present application, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and drawings, should be within the protection scope of the present application.

Claims

1. An assembled explosion-proof device, characterized in that: The assembled explosion-proof device comprises: An explosion-proof assembly, wherein the explosion-proof assembly comprises a plurality of explosion-proof walls, each of the explosion-proof walls 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 units close to the frame are connected to the frame; A fixing assembly, the fixing assembly comprises a fixing part and a post-embedded part for connecting to an outer wall, the post-embedded part is connected to the fixing part, and the fixing part is connected to the explosion-proof wall.

2. The assembled explosion-proof 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 which are sequentially stacked from the inside to the outside along the thickness direction.

3. The assembled explosion-proof device according to claim 2, characterized in that: The steel grating layer includes a plurality of square lattice structures formed by flat steels being cross-arranged in the transverse and longitudinal directions, and an inclined plate is welded in each of the square lattice structures.

4. The assembled explosion-proof device according to claim 1, characterized in that: The explosion-proof assembly also includes a plurality of shear energy-absorbing steel plates, and two adjacent explosion-proof units are connected by the plurality of shear energy-absorbing steel plates. The shear energy-absorbing steel plates include connecting parts located on both sides and an energy-absorbing part located in the middle, and the energy-absorbing part has two opposite arc-shaped edges.

5. The assembled explosion-proof device according to claim 1, characterized in that: The explosion-proof assembly also includes a support frame, which includes a first oblique rod, a second oblique rod and a circular energy absorber. The first oblique rod and the second oblique rod cross to form an X-shaped structure, and both ends of the first oblique rod and the second oblique rod are respectively fixed to the four corners of the frame. The circular energy absorber includes a plurality of friction gaskets and high-strength bolts. The first oblique rod, the second oblique rod and the plurality of friction gaskets are connected by the high-strength bolts.

6. The assembled explosion-proof device according to claim 1, characterized in that: The explosion-proof assembly further comprises a plurality of node plates, and the explosion-proof units close to the frame are connected to the frame through the node plates.

7. The assembled explosion-proof device according to claim 1, characterized in that: The fixing assembly further comprises a U-shaped connecting piece, and the post-embedded piece is connected to the fixing piece via the U-shaped connecting piece.

8. The assembled explosion-proof device according to claim 1, characterized in that: The fixing assembly also includes a rear bottom anchor bolt, and the rear embedded part is used to connect the outer wall through the rear bottom anchor bolt.

9. The assembled explosion-proof device according to claim 1, characterized in that: The fixing assembly further comprises a plurality of angle brackets, and the fixing member is connected to the explosion-proof unit via the plurality of angle brackets.

10. A method for installing an assembled explosion-proof device according to any one of claims 1 to 9, characterized in that: The installation method of the assembled explosion-proof device includes: first laying out the lines to install the post-embedded parts, then calibrating the elevation and axis of the vertical steel columns, installing the fixing parts, as well as the frame beams and frame columns to form the frame, and then installing the multiple explosion-proof units in each of the frames to form multiple explosion-proof walls.

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