Offshore critical equipment platform and explosion-proof device thereof

Abstract

The application provides an explosion-proof device, which comprises an explosion-proof plate, the explosion-proof plate comprises a fire barrier material layer in the middle and pressure relief and shock absorption layers arranged on both sides of the fire barrier material layer; the pressure relief and shock absorption layers are made of metal plates, the pressure relief and shock absorption layers are provided with pressure relief holes penetrating through upper and lower surfaces of the pressure relief and shock absorption layers and plastic hinge guide lines formed by bending in the direction of explosion impact force, and the plastic hinge guide lines are in the form of closed annular rings. The explosion-proof plate with a three-layer structure is designed, the fire barrier material layer with the fire barrier function is arranged in the middle, the pressure relief and shock absorption layers with the pressure relief and shock absorption functions are arranged on both sides, and the pressure relief holes and the plastic hinge guide lines are arranged on the pressure relief and shock absorption layers, so that the energy can be absorbed during explosion, the mechanical properties of the plate material from elasticity to plasticity are utilized to absorb the explosion impact force, and the damage of equipment and personnel caused by the explosion impact force is effectively prevented. The application further provides a sea key equipment platform with the above explosion-proof device.

Description

Technical Field

[0001] This invention belongs to the field of explosion-proof device technology, and specifically relates to a key offshore equipment platform and its explosion-proof device. Background Technology

[0002] Key offshore equipment platforms include booster stations, converter stations, and hydrogen production platforms, all of which are susceptible to fire and explosion. To prevent issues such as being ejected into other wind turbines within the wind farm after an explosion, the instantaneous collapse of the entire structure, and personnel on the platform having no time to escape, explosion-proof designs are necessary for these key offshore equipment platforms.

[0003] Therefore, how to prevent damage caused by explosive impact is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide a key offshore equipment platform and its explosion-proof device, which can effectively prevent damage caused by explosive impact.

[0005] To solve the above-mentioned technical problems, the present invention provides an explosion-proof device, including an explosion-proof plate, wherein the explosion-proof plate includes a fireproof material layer located in the middle and pressure relief and shock absorption layers disposed on both sides of the fireproof material layer;

[0006] The pressure relief and damping layer is made of metal plate. The pressure relief and damping layer is provided with pressure relief holes that penetrate the upper and lower surfaces of the pressure relief and damping layer, as well as plastic hinge guide lines formed by bending in the direction of the explosive impact force. The plastic hinge guide lines are in the form of closed rings.

[0007] Optionally, in the above-mentioned explosion-proof device, the number of plastic hinge guide wires is multiple;

[0008] And / or, the number of plastic hinges on each of the plastic hinge guide lines is multiple.

[0009] Optionally, in the above-mentioned explosion-proof device, a plurality of the plastic hinge guide lines are arranged concentrically from the inside out.

[0010] Optionally, in the above-mentioned explosion-proof device, the pressure relief and shock absorption layer is a steel plate, and the fireproof material layer is a rock wool layer.

[0011] Optionally, in the above-mentioned explosion-proof device, the shape of the bending surface of the plastic hinge guide wire is arc-shaped, triangular, or trapezoidal.

[0012] Optionally, in the above-mentioned explosion-proof device, the explosion-proof device is a polygonal structure formed by multiple explosion-proof plates, and the cavity of the polygonal structure is equipped with an explosive device.

[0013] Optionally, in the above-mentioned explosion-proof device, at least one face of the polygonal structure of the explosion-proof device is not provided with the explosion-proof plate, so as to avoid the fragments flying out after the explosion of the easily explosive device.

[0014] The present invention also provides a marine critical equipment platform, including explosive devices and explosion-proof devices as described above;

[0015] The potentially explosive device is located inside the explosion-proof device.

[0016] Optionally, in the aforementioned key offshore equipment platforms, the number of explosion-proof devices may be multiple.

[0017] Optionally, in the aforementioned offshore critical equipment platform, the explosion-proof device is a box with a clearance opening, the clearance opening facing away from the offshore critical equipment platform.

[0018] This invention provides an explosion-proof device, the advantages of which are:

[0019] By designing a three-layer explosion-proof plate, a fireproof material layer with fireproof function is set in the middle, and pressure relief and shock absorption layers with pressure relief and shock absorption function are set on both sides. At the same time, pressure relief holes and plastic hinge guide lines are set on the pressure relief and shock absorption layers to absorb energy during an explosion. The mechanical property of the plate from elastic to plastic is used to absorb the impact force of the explosion, thereby effectively preventing damage to equipment and personnel caused by the impact force of the explosion.

[0020] The present invention also provides a marine key equipment platform with the above-mentioned explosion-proof device, which has the same beneficial effects, and will not be described in detail here. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is an exploded structural diagram of an explosion-proof plate provided in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of an explosion-proof plate provided in an embodiment of the present invention;

[0024] Figure 3 This is a top view of an explosion-proof plate provided in an embodiment of the present invention;

[0025] Figure 4This is a longitudinal cross-sectional view of the plastic hinge guide joint on the steel plate provided in an embodiment of the present invention;

[0026] Figure 5 A longitudinal cross-sectional view of the plastic hinge guide joint of an explosion-proof plate provided in an embodiment of the present invention;

[0027] Figure 6 A schematic diagram illustrating the arrangement of explosion-proof devices on a key offshore equipment platform, as provided in an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of an explosion-proof device with an internally explosive device provided in an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the deployment of explosion-proof devices on a key offshore equipment platform provided in an embodiment of the present invention.

[0030] In the image above:

[0031] 1-Steel plate; 101-Pressure relief hole; 102-Plastic hinge guide line; 2-Rock wool layer;

[0032] X - Explosive module; Y - Explosive equipment; Z - Explosion-proof device. Detailed Implementation

[0033] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0034] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0035] In the description of this invention, "multiple" means two or more. If "first" and "second" are mentioned, they are only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0036] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0037] The core of this invention is to provide a key offshore equipment platform and its explosion-proof device, which can effectively prevent damage caused by explosive impact.

[0038] To enable those skilled in the art to better understand the technical solutions provided by the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] For details, please refer to Figures 1-8 , Figure 1 This is an exploded structural diagram of an explosion-proof plate provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of an explosion-proof plate provided in an embodiment of the present invention; Figure 3 This is a top view of an explosion-proof plate provided in an embodiment of the present invention; Figure 4 This is a longitudinal cross-sectional view of the plastic hinge guide joint on the steel plate provided in an embodiment of the present invention; Figure 5 A longitudinal cross-sectional view of the plastic hinge guide joint of an explosion-proof plate provided in an embodiment of the present invention; Figure 6 A schematic diagram illustrating the arrangement of explosion-proof devices on a key offshore equipment platform, as provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of an explosion-proof device with an internally explosive device provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the deployment of explosion-proof devices on a key offshore equipment platform provided in an embodiment of the present invention.

[0040] The present invention provides an explosion-proof device, including an explosion-proof plate, the explosion-proof plate including a fireproof material layer in the middle and pressure relief and shock-absorbing layers disposed on both sides of the fireproof material layer.

[0041] The pressure relief and shock absorption layer is made of metal plates, and the metal material can enhance the impact resistance during the explosion process.

[0042] The pressure relief and damping layer is provided with pressure relief holes 101 that penetrate the upper and lower surfaces of the pressure relief and damping layer, and a plastic hinge guide line 102 formed by bending in the direction of the explosive impact force. The plastic hinge guide line 102 is a closed ring.

[0043] It should be noted that a plastic hinge is a structural member where, under stress, the fibers on opposite surfaces yield but do not fail at a certain point; this point is the plastic hinge. The two sides of a plastic hinge can rotate slightly. In this case, the metal plate is provided with annular plastic hinge guide lines 102, meaning several plastic hinges are spaced apart on the annulus. Therefore, the internal forces of this pressure relief and damping layer also change. When the cross-section reaches the plastic flow stage, with the ultimate bending moment remaining constant, two infinitely close adjacent cross-sections can produce a finite relative rotation angle, similar to a hinged cross-section. The plastic hinge can withstand bending moments, the value of which is the ultimate bending moment of the plastic hinge section. For statically indeterminate structures, due to redundant connections, the yielding of longitudinal reinforcement at a certain cross-section, i.e., the appearance of a plastic hinge at a certain cross-section, does not immediately cause the structure to fail; it can still withstand further increasing loads. When the load continues to be applied, the bending moment borne by the cross-section where the plastic hinge first appears remains constant, resulting in rotation; the bending moment borne by the cross-section without a plastic hinge continues to increase until the structure forms a geometrically variable mechanism. This is the redistribution of internal forces in a structure caused by plastic deformation, and the process of plastic hinge rotation is the process of internal force redistribution.

[0044] The explosion-proof device Z provided by this invention is designed with a three-layer explosion-proof plate. The middle layer is a fireproof material layer with fireproof function, and the two sides are pressure relief and shock absorption layers with pressure relief and shock absorption functions. At the same time, pressure relief holes 101 and plastic hinge guide lines 102 are provided on the pressure relief and shock absorption layers to absorb energy during an explosion. The mechanical properties of the plate from elastic to plastic are used to absorb the impact force of the explosion, thereby effectively preventing damage to equipment and personnel caused by the impact force of the explosion.

[0045] In one specific embodiment, there are multiple plastic hinge guide lines 102, and / or, each plastic hinge guide line 102 has multiple plastic hinges. This arrangement can effectively improve the explosion-proof plate's ability to absorb explosive impact forces.

[0046] Of course, the number of plastic hinge guide lines 102 and the number of plastic hinges on each plastic hinge guide line 102 can be adapted to the specific situation, and no further restrictions are imposed here.

[0047] Furthermore, multiple plastic hinge guide lines 102 are concentrically arranged from the inside out. For example... Figure 3 As shown, multiple annular plastic hinge guide lines 102 are arranged sequentially from the inside out.

[0048] In one specific embodiment, the pressure relief and shock absorption layer is steel plate 1, but other materials can also be used, achieving the same structural strength. The fire-resistant material layer is rock wool layer 2, but other materials can also be selected, providing the same flame-retardant and fire-resistant effect.

[0049] In one specific embodiment, the bending surface of the plastic hinge guide line 102 is arc-shaped, triangular, or trapezoidal. The above shape design can further increase the buffering effect. The plastic hinge can absorb part of the explosive impact force and reduce the impact force intensity, thereby further increasing safety and reliability.

[0050] To achieve comprehensive protection, the explosion-proof device Z is a polygonal structure formed by multiple explosion-proof plates, and the cavity inside the polygonal structure houses the easily explosive device Y.

[0051] Furthermore, at least one face of the polygonal structure of the explosion-proof device Z is not equipped with an explosion-proof plate, in order to avoid debris ejected after the explosion of the easily explosive device Y. By properly arranging the explosion-proof plates, energy can be directed outwards.

[0052] like Figure 6 and Figure 7 As shown, the exterior of the easily explosive device Y is fitted with a hexahedral explosion-proof device Z, forming an easily explosive module X. All six faces of the easily explosive device Y capable of exploding are protected by explosion-proof plates. However, to guide the release of explosive energy, explosion-proof plates can be omitted from faces in a certain direction, in which case fragments from the internal explosion will be ejected in that direction.

[0053] Furthermore, the present invention also provides a marine critical equipment platform, including a potentially explosive device Y and an explosion-proof device Z as described above. The potentially explosive device Y is disposed inside the explosion-proof device Z.

[0054] Since the offshore critical equipment platform uses the aforementioned explosion-proof device Z, it also has the same beneficial effects as the aforementioned explosion-proof device Z, which will not be elaborated here.

[0055] In one specific embodiment, there are multiple explosion-proof devices Z. The explosion-proof device Z is a housing with a clearance opening facing away from the offshore critical equipment platform.

[0056] like Figure 8 As shown, the wind field of the critical offshore equipment platform is divided into two types: the outer wind field (A) and the inner wind field (B). The layout of the easily explosive device Y is determined based on the actual platform location and the expected depressurization direction to guide the explosion, and is combined with the design of the explosion-proof device Z. An easily explosive module X is arranged at the center of each of the four sides of the critical offshore equipment platform. Each easily explosive module X contains the easily explosive device Y and an explosion-proof device Z fitted onto the outside of the easily explosive device Y. The explosion-proof device Z has a hexahedral structure, and each easily explosive module X's explosion-proof device Z has a clearance opening in the direction away from the critical offshore equipment platform, so that debris and explosive energy after the explosion can be discharged through the clearance opening without damaging the critical offshore equipment platform.

[0057] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0058] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An explosion-proof device, characterized in that, The explosion-proof plate includes a fireproof material layer in the middle and pressure relief and shock absorption layers disposed on both sides of the fireproof material layer. The pressure relief and shock absorption layer is made of metal plate. The pressure relief and shock absorption layer is provided with pressure relief holes that penetrate the upper and lower surfaces of the pressure relief and shock absorption layer and plastic hinge guide lines formed by bending in the direction of the explosive impact force. The plastic hinge guide lines are in the form of closed rings. The number of plastic hinge guide lines is multiple; the multiple plastic hinge guide lines are concentrically arranged from the inside to the outside; The bending surface of the plastic hinge guide wire is arc-shaped, triangular, or trapezoidal.

2. The explosion-proof device according to claim 1, characterized in that, The number of plastic hinges on each of the aforementioned plastic hinge guide lines is multiple.

3. The explosion-proof device according to claim 1, characterized in that, The pressure relief and shock absorption layer is a steel plate, and the fireproof material layer is a rock wool layer.

4. The explosion-proof device according to any one of claims 1-3, characterized in that, The explosion-proof device is a polygonal structure formed by multiple explosion-proof plates, and the cavity of the polygonal structure is equipped with easily explosive devices.

5. The explosion-proof device according to claim 4, characterized in that, At least one face of the polygonal structure of the explosion-proof device is not provided with the explosion-proof plate, so as to avoid the debris flying out after the explosion of the easily explosive device.

6. A key offshore equipment platform, characterized in that, Includes explosive devices and explosion-proof devices as described in any one of claims 1-5; The potentially explosive device is located inside the explosion-proof device.

7. The offshore key equipment platform according to claim 6, characterized in that, The number of explosion-proof devices is multiple.

8. The offshore key equipment platform according to claim 6 or 7, characterized in that, The explosion-proof device is a box with a clearance opening, which faces away from the offshore critical equipment platform.

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