A multi-dimensional linkage damping prefabricated explosion-proof oil and gas pipeline device
The damping assembly explosion-proof device, with its multi-layered protective wrapping and interconnected linkage, solves the problems of stress concentration and vibration in existing oil and gas pipelines under explosive loads, achieving effective protection and rapid maintenance of oil and gas pipelines, and enhancing the explosion-proof effect and economy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XI'AN PETROLEUM UNIVERSITY
- Filing Date
- 2025-09-11
- Publication Date
- 2026-06-30
AI Technical Summary
Existing explosion-proof devices for oil and gas pipelines are prone to pipe rupture due to stress concentration when subjected to explosive loads. They also have high maintenance costs, cannot effectively prevent secondary problems caused by pipeline plastic deformation and vibration, and are inconvenient to assemble and disassemble.
It adopts a multi-layer protective wrapping structure, including a foamed aluminum buffer layer, a CFRP protective layer, a filling layer and a vibration damper. It is connected by pillars and clamps to achieve multi-dimensional linkage for shock and explosion protection. The vibration damper absorbs vibration energy, the clamps enhance radial restraint, and the pillars transmit impact force.
It effectively resists direct structural damage to pipelines from explosive loads, prevents plastic deformation caused by vibration, reduces maintenance costs, and supports rapid disassembly and assembly, thus improving the safety and economy of oil and gas pipelines.
Smart Images
Figure CN224433839U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of explosion-proof technology for oil and gas pipelines, and in particular to a multi-dimensional linkage damping assembly explosion-proof oil and gas pipeline device. Background Technology
[0002] Oil and natural gas are among the most important strategic energy sources for any nation. Pipeline transportation, as one of the five major modes of transportation, boasts advantages such as low cost, high safety, and high efficiency; therefore, it is widely used for two-thirds of global oil and gas transportation. As an energy lifeline system inextricably linked to strategic and economic interests, the safe operation and maintenance of oil and gas pipelines are of paramount importance to national security and social stability. When oil and gas pipelines fail due to external impact loads, it often triggers serious secondary disasters such as fires. Furthermore, as oil and gas resources are key inputs in the production of most goods and services, any disruption to transportation caused by pipeline failure due to external explosive loads will have severe adverse effects. Therefore, it is essential to develop explosion-proof devices for oil and gas pipelines to withstand external explosive loads in advance.
[0003] Existing explosion-proof methods for oil pipelines generally employ thickened steel pipe walls or simple coating protection, such as the double-layer steel explosion-proof oil pipeline structure disclosed in patent application CN202345678U. However, such methods are relatively simple and cannot prevent secondary problems such as plastic deformation of the pipeline caused by pipeline vibration due to the impact and attenuation of explosive loads. At the same time, existing pipeline explosion-proof protection devices cannot achieve effective combination and secondary disassembly of various parts. Once encountering complex explosion conditions, the pipe body is prone to rupture due to stress concentration, and the subsequent maintenance cost is high. Summary of the Invention
[0004] In order to overcome the defects in the existing technology, the purpose of this utility model is to provide a multi-dimensional linkage damping assembled explosion-proof oil and gas pipeline device. By wrapping the pipeline with multiple layers of protection and by using support columns and clamps, vibration is transmitted to the vibration isolation damper, thereby achieving multi-dimensional linkage shock and explosion protection.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] A multi-dimensional linkage damping prefabricated explosion-proof oil and gas pipeline device includes a foamed aluminum buffer layer 3 installed outside the oil and gas pipeline 1. The foamed aluminum buffer layer 3 is wrapped with a CFRP protective layer 4 and connected by an I-beam joint groove 5. A filling layer 2 is filled with rubber between the oil and gas pipeline 1 and the foamed aluminum buffer layer 3, and between the foamed aluminum buffer layer 3 and the CFRP protective layer 4. The oil and gas pipeline 1 and the CFRP protective layer 4 are fixedly constrained by clamps 6. The oil and gas pipeline 1 is provided with clamps 6 at intervals, and each clamp 6 is connected to its corresponding support 7. Multiple supports 7 are connected by linkage rods 10.
[0007] The clamp 6 is composed of two semi-circular irregular clamps 6-3 connected by bolt A 6-1. The upper protruding part at the connection is the clamp cap 6-2, and the clamp cap 6-2 is used to install the overpressure sensor. The inner ring of the clamp 6 is set in a sawtooth shape. The clamp 6 is connected to the support column 7 in the horizontal direction through the connecting rod 6-4.
[0008] The bottom of the support column 7 is fixedly connected to the vibration damper 11.
[0009] The bottom of the support column 7 is fixed to the vibration damper 11 via CFRP plate 8 and aluminum foam plate 9.
[0010] The vibration damper 11 includes two concrete structural layers 11-1, and a damper 12 is provided between the two concrete structural layers 11-1. The lower end of the damper 12 is fixed in the lower concrete structural layer 11-1 by a embedded plate 11-3 and an anchor 11-2. The upper end of the damper 12 is connected to a linkage rod 11-4, and the linkage rod 11-4 is connected to the upper concrete structural layer 11-1 by a B bolt 11-5.
[0011] The damping 12 includes a top cap 12-1, a connecting rod 12-3, and a hydraulic cylinder 12-4 connected in sequence. A spring 12-2 is sleeved on the connecting rod 12-3. The top cap 12-1 is connected to the linkage rod 11-4. The hydraulic cylinder 12-4 is fixed to the embedded plate 11-3 and fixed to the concrete structure layer 11-1 with anchor nails 11-2.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This utility model, through the design of the aluminum foam buffer layer 3, CFRP protective layer 4, filling layer 2, vibration damper 11, etc., plays the role of buffering energy absorption and stress wave absorption.
[0014] 2. Through the connection design of the clamp 6 and the support column 7, this utility model can interlock with the explosion-proof layer after being subjected to impact force, thereby strengthening the connection and playing a radial restraining role on the pipeline.
[0015] 3. The bottom of this utility model is equipped with a vibration damper 11 to prevent secondary problems such as plastic deformation of the pipeline caused by vibration, and further ensure safety.
[0016] 4. Each component of this utility model is an assembled structure, which can realize the disassembly and assembly of the structure. It can pre-defend pipeline sections threatened by external explosive loads, and the structure can be disassembled after the threat is eliminated.
[0017] In summary, the multi-dimensional linkage damping assembled explosion-proof oil and gas pipeline device of this utility model can effectively resist the direct structural damage to the oil and gas pipeline 1 caused by external explosive loads, and each component can be disassembled and assembled at any time. This utility model has significant economic and practical advantages in the field of disaster prevention and mitigation of oil and gas pipelines. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model.
[0019] Figure 2 This is a schematic diagram of the clamp structure of this utility model.
[0020] Figure 3 This is a schematic diagram of the vibration isolation damper structure of this utility model.
[0021] Figure 4 This is a schematic diagram of the damping structure of this utility model.
[0022] Figure 5 This is a schematic diagram of the external structure of the oil and gas pipeline 1 of this utility model.
[0023] In the diagram, the components are: 1. Oil and gas pipeline; 2. Rubber filling layer; 3. Foamed aluminum buffer layer; 4. CFRP protective layer; 5. I-beam joint groove; 6. Clamp; 6-1 A bolt; 6-2 clamp cap; 6-3 special-shaped clamp; 7. Support column; 8. CFRP board; 9. Foamed aluminum board; 10. Linkage chain rod; 11. Vibration damper; 11. Concrete structure layer; 11-1 anchor; 11-2 embedded plate; 11-3 linkage rod; 11-4 B bolt; 11-5 damper; 12. Top cap; 12-1 spring; 12-2 connecting rod; 12-3 hydraulic cylinder; 12-4. Detailed Implementation
[0024] The following is in conjunction with the appendix Figure 1-4 The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the protection scope of this utility model.
[0025] Example 1
[0026] like Figure 1As shown, the multi-dimensional linkage damping assembled explosion-proof oil and gas pipeline device provided by this utility model includes a protective device installed outside the oil and gas pipeline 1. The protective device provides multi-layer protection for the oil and gas pipeline 1, including a CFRP protective layer 4 wrapped around a foamed aluminum buffer layer 3 and connected by an I-beam joint groove 5. The oil and gas pipeline 1 and the foamed aluminum buffer layer 3, as well as the foamed aluminum buffer layer 3 and the CFRP protective layer 4, are filled with a rubber filling layer 2. The oil and gas pipeline 1 and the CFRP protective layer are fixed and constrained by clamps 6. In order to better transmit force, clamps 6 are installed at intervals on the oil and gas pipeline 1. Each clamp 6 is connected to its corresponding support 7. Specifically, the support 7 has holes that connect to the clamps 6. Multiple supports 7 are connected by linkage rods 10, and the radial explosion impact load suffered by the pipeline is buffered by displacement linkage.
[0027] Example 2
[0028] Based on Example 1, improvements were made to the traditional clamp 6 to enhance the overall integrity and radial constraint of the explosion-proof device. For example... Figure 2 As shown, the clamp 6 consists of two semi-circular irregular clamps 6-3 connected by bolt A 6-1. The upper protruding part at the connection is a clamp cap 6-2, which is equipped with an overpressure sensor to measure the pressure of the explosion shock wave. The inner ring of the clamp 6 is serrated, which can engage with the explosion-proof layer after being subjected to impact force, enhancing the connection. The irregular clamp 6 is horizontally connected to the support column 7 via a connecting rod 6-4.
[0029] Example 3
[0030] Based on Example 1, in order to reduce the impact and vibration of the explosion load on the pipeline, a vibration damper 11 is installed at the bottom of the explosion-proof device to further ensure the safety of the oil and gas pipeline 1.
[0031] Specifically, the bottom of the support column 7 is fixed to the vibration damper 11 through CFRP plate 8 and aluminum foam plate 9, and the CFRP plate 8 and aluminum foam plate 9 absorb energy and buffer the shock wave acting on the vibration damper 11.
[0032] like Figure 3-4 As shown, the vibration damper 11 includes two concrete structural layers 11-1, and a damper 12 is provided between the two concrete structural layers 11-1. The lower end of the damper 12 is fixed in the lower concrete structural layer 11-1 by a embedded plate 11-3 and an anchor 11-2. The upper end of the damper 12 is connected to a linkage rod 11-4, and the linkage rod 11-4 is connected to the upper concrete structural layer 11-1 by a B bolt 11-5.
[0033] The damping 12 includes a top cap 12-1, a connecting rod 12-3, and a hydraulic cylinder 12-4 connected in sequence. A spring 12-2 is sleeved on the connecting rod 12-3. The top cap 12-1 is connected to the linkage rod 11-4. The hydraulic cylinder 12-4 is fixed to the embedded plate 11-3 and fixed to the concrete structure layer 11-1 with anchor nails 11-2.
[0034] The concrete structural layer 11-1 can effectively prevent damage to the damper caused by detonation, thus achieving the safety protection of the vibration isolation damper 11. The damping dissipates the kinetic energy transmitted by the explosive explosion through the joint movement of the linkage rod 11-4, spring 12-2, connecting rod 12-3, and hydraulic cylinder 12-4, achieving the expected protection requirements.
[0035] The working principle of this utility model is as follows: when the oil and gas pipeline 1 is subjected to an explosive impact, the CFRP protective layer 4 can effectively resist the structural damage caused by the explosive overpressure, while the rubber filling layer 2 and the foamed aluminum buffer layer 3 can play a buffering and energy absorption role, absorbing the stress wave transmitted by the CFRP protective layer 4, so as to achieve the purpose of protecting the pipeline.
[0036] The clamp 6 is serrated, which can enhance the radial constraint of the explosion-proof device on the pipeline; and through the support 7 and the clamp 6, the vibration caused by the explosion shock wave is transmitted to the vibration damper 11 to prevent secondary problems such as pipeline plastic deformation caused by vibration.
Claims
1. A multi-dimensional linkage damper assembled anti-explosion oil and gas pipeline device, characterized in that, It includes a foamed aluminum buffer layer (3) set outside the oil and gas pipeline (1), the foamed aluminum buffer layer (3) is wrapped with a CFRP protective layer (4) and connected by an I-beam joint groove (5), a rubber filling layer (2) is filled between the oil and gas pipeline (1) and the foamed aluminum buffer layer (3) and between the foamed aluminum buffer layer (3) and the CFRP protective layer (4), the oil and gas pipeline (1) and the CFRP protective layer are fixed and constrained by clamps (6), clamps (6) are set at intervals on the oil and gas pipeline (1), and each clamp (6) is connected to its corresponding support (7); multiple supports (7) are connected by a linkage chain (10).
2. The multi-dimensional linked damping fabricated anti-explosion oil and gas pipeline device according to claim 1, characterized in that, The clamp (6) is composed of two semi-circular irregular clamps (6-3) connected by bolt A (6-1). The upper protruding part at the connection is the clamp cap (6-2), and the clamp cap (6-2) is used to install the overpressure sensor. The inner ring of the clamp (6) is set as a sawtooth shape. The clamp (6) is connected to the support column (7) in the horizontal direction through the connecting rod (6-4).
3. The multi-dimensional linked damping fabricated anti-explosion oil and gas pipeline device according to claim 1, characterized in that, The bottom of the support column (7) is fixedly connected to the vibration damper (11).
4. The multi-dimensional linkage damping assembled explosion-proof oil and gas pipeline device according to claim 3, characterized in that, The bottom of the support column (7) is fixed to the vibration damper (11) via a CFRP plate (8) and a foam aluminum plate (9).
5. A multi-dimensional linkage damping assembled explosion-proof oil and gas pipeline device according to claim 4, characterized in that, The vibration damper (11) includes two concrete structural layers (11-1) and a damper (12) is provided between the two concrete structural layers (11-1). The lower end of the damper (12) is fixed in the lower concrete structural layer (11-1) by a embedded plate (11-3) and an anchor (11-2). The upper end of the damper (12) is connected to a linkage rod (11-4). The linkage rod (11-4) is connected to the upper concrete structural layer (11-1) by a B bolt (11-5).
6. A multi-dimensional linkage damping assembled explosion-proof oil and gas pipeline device according to claim 5, characterized in that, The damping (12) includes a top cap (12-1), a connecting rod (12-3), and a hydraulic cylinder (12-4) connected in sequence. The connecting rod (12-3) is fitted with a spring (12-2). The top cap (12-1) is connected to the linkage rod (11-4). The hydraulic cylinder (12-4) is fixed to the embedded plate (11-3) and fixed to the concrete structure layer (11-1) with an anchor (11-2).