Explosion venting wall structure

Abstract

The utility model belongs to the technical field of building explosion venting, and particularly relates to an explosion venting wall structure which comprises a metal plate, an air layer, a rock wool layer and a fiber reinforced cement plate which are sequentially arranged from outside to inside. Outer angle steel is connected to the outer sides of the upper end and the lower end of the fiber reinforced cement board, inner angle steel is connected to the inner sides of the upper end and the lower end of the fiber reinforced cement board, one end of the inner angle steel abuts against the inner side of the metal plate, and the metal plate is arranged between the upper outer angle steel and the lower outer angle steel. The rock wool layer is attached to the inner side of the fiber reinforced cement board; the rock wool layer is not in contact with the metal plate to form an air layer; according to the utility model, the fiber reinforced cement board, the rock wool and the metal board are used as the pressure relief wall body, so that factory-like manufacturing and on-site combined installation of materials can be realized; and dry construction is adopted, so that the construction efficiency and the construction quality are improved, and meanwhile, the safety, the applicability and the economical efficiency of industrial factory building buildings are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of explosion relief of buildings, and in particular relates to an explosion relief wall structure. Background Art

[0002] The production process of electronic chemicals is complex, requires high precision and purity, and has strict requirements on fire prevention, explosion prevention and other environmental conditions in the production workshop. Explosion-proof wall panels are suitable for buildings with dust and gas explosion hazards in the petrochemical, pharmaceutical, electronic, tobacco and other industries. They are important equipment for controlling the release of explosion energy and protecting the safety of the surrounding environment. Traditional explosion-proof walls used in industrial buildings such as chemical plants and warehouses are usually cast-in-place foam concrete, but it is not easy to escape after an explosion, and the explosion-proof effect is not obvious; they also have disadvantages such as heavy weight, low compressive strength, easy cracking, and inconvenient installation and use.

[0003] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide an explosion relief wall structure which can effectively adapt to explosion pressure and solve the problems of heavy weight and high construction cost of the explosion relief wall.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A explosion-proof wall structure comprises a metal plate, an air layer, a rock wool layer and a fiber reinforced cement board which are arranged in sequence from the outside to the inside; the upper end and the lower end of the fiber reinforced cement board are connected to an outer angle steel on the side facing away from the metal plate, the upper end and the lower end of the fiber reinforced cement board are connected to an inner angle steel on the side facing the metal plate, the inner ends of the outer angle steel and the inner angle steel are both facing the metal plate, and one end of the inner angle steel is against the inner side of the metal plate, and the metal plate is arranged between the upper and lower outer angle steels; the rock wool layer is attached to the side of the fiber reinforced cement board facing the metal plate; an air layer is formed without contact between the rock wool layer and the metal plate.

[0007] Furthermore, the two side plates of the outer angle steel are respectively connected and fixed to the two side plates of the inner angle steel by explosion-relief bolts.

[0008] Furthermore, the outer angle steel and the inner angle steel are both unequal angle steels, the longer side of the outer angle steel is usually 1.25 to 1.75 times the length of the other side, and the longer side of the inner angle steel is usually 1.25 to 1.75 times the length of the other side; the thickness of the outer angle steel and the inner angle steel is 3 mm to 6 mm.

[0009] Furthermore, the metal plate is made of aluminum single plate, aluminum-plastic plate, aluminum alloy plate, galvanized plate or stainless steel plate, and has a thickness of 3 mm to 6 mm.

[0010] Furthermore, the thickness of the air layer is 1 to 1.5 times the thickness of the rock wool.

[0011] Furthermore, the fiber reinforced cement board has a thickness of 8 mm to 10 mm.

[0012] Furthermore, the gap between the outer angle steel and the inner angle steel is filled with a rock wool pad.

[0013] Furthermore, the thickness of the rock wool layer is 30-50 mm, the thickness of the rock wool pad is less than the thickness of the rock wool layer, and the minimum thickness of the rock wool pad is 20 mm.

[0014] Furthermore, the metal plate and the fiber reinforced cement plate are long strip plates; two adjacent fiber reinforced cement plates or metal plates are spliced.

[0015] Furthermore, the metal plate is fixed to the outer angle steel by welding, and is fixed by spot welding.

[0016] The beneficial effects of the utility model are:

[0017] The utility model adopts fiber reinforced cement board, rock wool and metal plate as pressure relief wall, which can realize factory production of materials and on-site assembly and installation; and adopts dry construction method, which is helpful to improve construction efficiency and construction quality, and at the same time improve the safety, applicability and economy of industrial plant buildings;

[0018] Moreover, when combustion or explosion occurs, the high temperature, pressure, fragments, etc. generated by the explosion or combustion can be decomposed and controlled through the material properties and structural characteristics of the wall itself; it can not only reduce the damage to structural components and the splashing of building debris, but also reduce casualties and property losses in the building. It can be used as an explosion-proof wall structure for dangerous production plants. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0020] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0021] Figure 2 It is a paving schematic diagram of an embodiment of the utility model.

[0022] In the figure: 1-fiber reinforced cement board, 2-rock wool layer, 3-air layer, 4-inner angle steel, 5-outer angle steel, 6-rock wool pad, 7-metal plate, 8-explosion-proof bolt. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the present invention.

[0024] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "connected" and "connection" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0026] like Figure 1 As shown, an explosion-proof wall structure includes a fiber reinforced cement board 1, a rock wool layer 2, a metal plate 7, an inner angle steel 4, an outer angle steel 5 and an explosion-proof bolt 8; it mainly includes two layers, an inner and an outer layer, the outer layer uses a metal plate 7 and a fiber reinforced cement board 1 as impact-resistant materials to protect the internal structure from explosion impact, and the inner layer uses a flexible material rock wool, which can adapt to the deformation of the explosion pressure while maintaining the overall stability; the outer layer and the inner layer are fixedly connected at the top and bottom by the inner angle steel 4 and the outer angle steel 5; preferably, the gap between the outer angle steel 5 and the inner angle steel 4 is filled with a rock wool pad 6.

[0027] like Figures 1 to 2As shown, the explosion-proof wall structure includes a metal plate 7, an air layer 3, a rock wool layer 2 and a fiber reinforced cement board 1 which are arranged in sequence from the outside to the inside; the outer sides of the upper and lower ends of the fiber reinforced cement board 1 are connected with outer angle steels 5, and the inner sides of the upper and lower ends of the fiber reinforced cement board 1 are connected with inner angle steels 4, the inner ends of the outer angle steels 5 and the inner angle steels 4 are both facing the metal plate 7, and one end of the inner angle steel 4 is against the inner side of the metal plate 7, and the metal plate 7 is arranged between the upper and lower outer angle steels 5; the rock wool layer 2 is attached to the inner side of the fiber reinforced cement board 1, and the rock wool layer 2 in the wall can mitigate the impact of the explosion The speed of wave propagation can also reduce the wind pressure of the explosion shock wave and reduce the impact force on the wall structure, thereby reducing the damage to the wall components; the rock wool layer 2 and the metal plate 7 do not contact to form an air layer 3, and the air layer 3 in the structure can disperse and absorb part of the shock wave energy. The gas in the air layer 3 will be compressed due to the action of the shock wave. This compression process can absorb a large amount of energy and is accompanied by a certain time delay, thereby reducing the direct impact of the shock wave on the outer metal plate 7; Note that in the utility model, the inner side of the fiber reinforced cement board 1 refers to the side of the fiber reinforced cement board 1 facing the metal plate 7.

[0028] like Figure 1 As shown, the outer angle steel 5 and the inner angle steel 4 are used as connecting parts, both of which are cold-bent angle steels. The cold-bent angle steels are connected and fixed to the main structure by explosion-proof bolts 8. The gap between the two cold-bent angle steels is filled with rock wool, and the metal plate 7 is connected to the cold-bent angle steel by welding. Specifically, the outer angle steel 5 and the inner angle steel 4 are both unequal-legged angle steels, the longer side of the outer angle steel 5 is usually 1.25 to 1.75 times the length of the other side, and the longer side of the inner angle steel 4 is usually 1.25 to 1.75 times the length of the other side; the thickness of the outer angle steel 5 and the inner angle steel 4 is 3 mm to 6 mm; on the one hand, they serve as connecting parts to fix the inner and outer walls, and on the other hand, they can connect the walls to the main structure to achieve one-way explosion-proofing; when an explosion occurs, the rock wool pad 6 between the two cold-bent angle steels serves as a buffer layer to reduce damage to the inner angle steel 4 and the metal plate 7 located on the outside.

[0029] The metal plate 7 is made of metal material as the base material, which is easy to process, good to form, has high fire resistance, various forms and strong plasticity. The categories include 7 kinds of metal plates such as aluminum veneer, aluminum-plastic plate, aluminum alloy plate, galvanized plate, stainless steel plate, etc.; its thickness is generally greater than 3mm, ranging from 3mm to 6mm.

[0030] The thickness of the fiber reinforced cement board 1 is 8mm to 10mm, usually 9mm. The fiber reinforced cement board 1 has high strength, good board surface flatness, excellent fire resistance, strong impact resistance, and convenient construction; the rock wool layer 2 has good fire retardant performance, corrosion resistance, simple construction, and low overall cost.

[0031] like Figure 1As shown, the thickness of the air layer 3 is 1 to 1.5 times the thickness of the rock wool; preferably, the thickness of the air layer 3 is the same as the thickness of the rock wool 1; the thickness of the rock wool layer 2 is 30 to 50 mm, the thickness of the rock wool pad 6 is less than the thickness of the rock wool layer 2, and the minimum thickness of the rock wool pad 6 is 20 mm.

[0032] Furthermore, the metal plate 7 and the fiber reinforced cement board 1 are long strips of plates, similar to long strips of wall panels; the side of a single plate is a plane, and two adjacent fiber reinforced cement boards 1 or metal plates 7 are spliced ​​using normal plane splicing; the plates located at the edge can be connected to the columns of the building through connectors when necessary; the metal plate 7 is welded and fixed to the outer angle steel 5, and this welding step is implemented last.

[0033] The construction steps of the explosion-proof wall structure of the utility model are as follows:

[0034] S1, external angle steel 5 at the bottom of the fixed wall;

[0035] S2. Glue the top outer angle steel 5 to the fiber reinforced cement board 1, and then fix the fiber reinforced cement board 1, paying attention to the verticality of the fiber reinforced cement board 1;

[0036] S3, sticking the rock wool pad 6 between the outer angle steel 5 and the inner angle steel 4;

[0037] S4. Use explosion-proof bolts 8 to connect and fix the cold-bent angle steels on the inside and outside; one end of the explosion-proof bolt 8 fixing the fiber reinforced cement board 1 passes through the outer angle steel 5, the fiber reinforced cement board 1 and the inner angle steel 4 in sequence, and then is connected to the inner angle steel 4 through a washer and a nut; one end of the explosion-proof bolt 8 fixing the rock wool pad 6 passes through the inner angle steel 4, the rock wool pad 6 and the outer angle steel 5 in sequence, and then is fixed in the wall where the angle steel is fixed;

[0038] S5. Paste the rock wool layer 2 by using the strip or spot method, and the glue coating area should not be less than 50%; after applying the adhesive to the rock wool board, first paste the lower end to the fiber reinforced cement board 1, and then lay it horizontally from bottom to top, anchoring while laying, the seams of the rock wool board should be naturally close, the gaps between the boards should not be larger than 2mm, and fill them tightly with silicone sealant;

[0039] S6. Install the outermost metal plate 7. Use waterproof glue to seal the contact parts between the metal plate 7 and the inner angle steel 4 and the outer angle steel 5. Finally, weld the metal plate 7 to the cold-bent angle steel. Figure 2 This is a schematic diagram of the main structure of the explosion-proof wall structure after installation.

[0040] The utility model adopts fiber reinforced cement board 1, rock wool and metal plate 7 as the pressure relief wall, which can realize factory production of materials and on-site assembly and installation; and adopts dry construction, which helps to improve construction efficiency and construction quality, while improving the safety, applicability and economy of industrial plant buildings; it can solve the problems of heavy weight of explosion relief wall, high construction cost, wall cracks, etc.

[0041] The utility model provides a double-layer explosion relief wall, which can effectively adapt to the explosion pressure and is easier to maintain the integrity of the wall; compared with the simple rock wool explosion relief wall structure, it can improve the sound insulation and thermal insulation performance; the utility model is used for the pressure relief wall of industrial buildings in chemical production prone to fire and explosion (weight less than 60kg / m 2 ), when combustion or explosion occurs, the high temperature, pressure, fragments, etc. generated by the explosion or combustion can be decomposed and controlled through the material properties and structural characteristics of the wall itself. Specifically, this is achieved by setting rock wool and air layers in the wall. They can slow down the speed of the explosion shock wave propagation, reduce the wind pressure of the explosion shock wave, reduce the impact force on the wall structure, and thus reduce the damage to the wall components; it can reduce the destruction of structural components and the splashing of building debris, and reduce casualties and property losses in the building.

[0042] The above description is only a preferred 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 are within the scope of protection of the pending claims of the present invention.

Claims

1. An explosion-proof wall structure, characterized in that: The invention comprises a metal plate (7), an air layer (3), a rock wool layer (2) and a fiber reinforced cement board (1) which are arranged in sequence from the outside to the inside; the upper end and the lower end of the fiber reinforced cement board (1) are connected to an outer angle steel (5) on the side facing away from the metal plate (7); the upper end and the lower end of the fiber reinforced cement board (1) are connected to an inner angle steel (4) on the side facing the metal plate (7); the inner ends of the outer angle steel (5) and the inner angle steel (4) are both facing the metal plate (7), and one end of the inner angle steel (4) is against the inner side of the metal plate (7); the metal plate (7) is arranged between the upper and lower outer angle steels (5); the rock wool layer (2) is attached to the side of the fiber reinforced cement board (1) facing the metal plate (7); the rock wool layer (2) and the metal plate (7) are not in contact with each other to form an air layer (3).

2. The explosion relief wall structure according to claim 1, characterized in that: The two side plates of the outer angle steel (5) are respectively connected and fixed to the two side plates of the inner angle steel (4) via explosion relief bolts (8).

3. The explosion relief wall structure according to claim 1, characterized in that: The outer angle steel (5) and the inner angle steel (4) are both unequal angle steels, the longer side of the outer angle steel (5) is 1.25 to 1.75 times the length of the other side, and the longer side of the inner angle steel (4) is 1.25 to 1.75 times the length of the other side; the thickness of the outer angle steel (5) and the inner angle steel (4) is 3 mm to 6 mm.

4. The explosion relief wall structure according to claim 1, characterized in that: The metal plate (7) is made of aluminum single plate, aluminum-plastic plate, aluminum alloy plate, galvanized plate or stainless steel plate, and has a thickness of 3 mm to 6 mm.

5. The explosion relief wall structure according to claim 1, characterized in that: The thickness of the air layer (3) is 1 to 1.5 times the thickness of the rock wool.

6. The explosion-proof wall structure according to claim 1, characterized in that: The fiber reinforced cement board (1) has a thickness of 8 mm to 10 mm.

7. The explosion relief wall structure according to claim 1, characterized in that: The gap between the outer angle steel (5) and the inner angle steel (4) is filled with a rock wool pad (6).

8. The explosion relief wall structure according to claim 7, characterized in that: The thickness of the rock wool layer (2) is 30 to 50 mm, the thickness of the rock wool pad (6) is less than the thickness of the rock wool layer (2), and the minimum thickness of the rock wool pad (6) is 20 mm.

9. The explosion relief wall structure according to claim 1, characterized in that: The metal plate (7) and the fiber reinforced cement plate (1) are long strip plates; two adjacent fiber reinforced cement plates (1) or metal plates (7) are spliced.

10. The explosion-proof wall structure according to claim 1, characterized in that: The metal plate (7) is fixed to the outer angle steel (5) by welding, and is fixed by spot welding.

Images