Anti-seismic support for natural gas long-distance pipeline branch transportation station yard

Abstract

The utility model relates to the technical field of natural gas engineering, and particularly discloses an anti-seismic support for a natural gas long-distance pipeline branch transportation station yard. The two damping buffers are mounted at the two ends respectively. The support comprises a first bearing part and a second bearing part, the second bearing part is pre-buried in an installation position, and the two damping buffers are connected with the first bearing part and the second bearing part respectively. A pipeline mounting part is arranged on one side of the first bearing part and fixedly connected with the first bearing part. The damping buffer is installed on the bearing part through a universal hinged support. And the second bearing part is fixed on the structure. Under normal working conditions, thermal displacement of the pipeline is not limited by the support. When an earthquake occurs, the support limits vibration of the pipeline and prevents resonance damage. The bracket improves the stability and the reliability of the pipeline, disperses earthquake force through the double damping buffers, allows multi-directional displacement through the universal hinged supports, is convenient to maintain, and ensures the safety and the stability of a natural gas conveying system.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas engineering, in particular to an anti-seismic support for a distribution station of a long-distance natural gas pipeline. Background Art

[0002] In current long-distance natural gas pipeline systems, the pressure pipe supports and hangers used at distribution stations are mostly relatively simple sliding and guiding supports. These supports primarily provide sliding and guiding functions, ensuring smooth pipeline movement during operation. However, in certain situations, such as in earthquake-prone areas or at distribution stations with stringent seismic performance requirements, this simple support structure cannot meet practical needs. While a few pipe supports and hangers do have fixed functions, their structural designs are relatively simple and fail to provide adequate seismic protection. Existing standard pipe support and hanger components are particularly deficient in areas with high seismic intensity or for pressure pipes requiring high seismic resistance. These standard components fail to fully account for the destructive effects of earthquakes on pipeline systems, lacking effective seismic protection in both vertical and horizontal radial directions. This means that during an earthquake, the pipeline could suffer severe damage due to a lack of adequate shock absorption, potentially leading to system failure. Therefore, to address this technical shortcoming, there is an urgent need to develop new pipe supports and hangers that not only provide traditional sliding and guiding functions but also offer enhanced fixation and seismic performance. Such a design will ensure that the pipeline can remain stable during an earthquake, reducing damage caused by the earthquake and thus ensuring the safety and reliability of the entire natural gas transmission system.

[0003] In the patent "Double-rod Pipe Seismic Support" (publication number CN115289285A, hereinafter referred to as prior art 1), an anti-seismic support is disclosed. The technical principle of prior art 1 is to achieve shock absorption effect and meet engineering requirements through the design of a double-rod pipe anti-seismic support. The support includes a connector at a fixed end and a free end, the connector is an arc-shaped curved connector, a viscoelastic damper, a spring and a retractable lateral support. The pipeline is installed at the lower end of the hanger through a mounting assembly, and the rigid part of the viscoelastic damper is also connected to the other end of the spring. In addition, the upper end of the hanger is connected to the rigid part of the viscoelastic damper at the free end of the connector, and the two ends of the lateral support are respectively connected to the mounting seat, the clamp-type pipe clamp and the anti-slip rubber spacer.

[0004] The design of Prior Art 1 fails to adequately consider the lack of effective earthquake protection measures for the pipeline in both the vertical and horizontal radial directions. This leads to a serious problem: during an earthquake, the pipeline may suffer severe damage due to the lack of adequate shock absorption measures. This damage may cause the pipeline to break, deform, or even fail completely, further paralyzing the entire system. Utility Model Content

[0005] In view of this, an embodiment of the present invention provides a seismic support for a natural gas long-distance pipeline distribution station to solve the problem of lack of effective earthquake protection measures in the vertical and horizontal radial directions of the pipeline.

[0006] An embodiment of the present utility model provides an anti-seismic support for a natural gas long-distance pipeline distribution station, comprising a shock-absorbing buffer; the two ends of the shock-absorbing buffer are respectively installed through a first connecting part and a second connecting part; the shock-absorbing buffer comprises a first shock-absorbing buffer and a second shock-absorbing buffer; the second connecting part is pre-buried in a preset installation position; one end of the first shock-absorbing buffer and the second shock-absorbing buffer are both installed on the first connecting part; the other ends of the first shock-absorbing buffer and the second shock-absorbing buffer are both installed on the second connecting part; a pipeline mounting part is provided on one side of the first connecting part; the pipeline mounting part is fixedly connected to the first connecting part; the installation positions of the first shock-absorbing buffer and the second shock-absorbing buffer and the first connecting part and the second connecting part are both installed through the universal hinge; the second connecting part is provided on the fixed structure and is fixedly connected to the fixed structure.

[0007] Preferably, the fixed structure is a ground embedded plate; the ground embedded plate is fixed to the ground; the second receiving portion is fixedly connected to the ground embedded plate, and an inclined reinforcing steel is provided between the second receiving portion and the ground embedded plate.

[0008] Preferably, the fixed structure is a steel structure, a steel platform or a civil wall structure; and the second receiving portion is fixedly arranged on the steel structure, the steel platform or the civil wall structure.

[0009] Preferably, the first shock-absorbing buffer and the second shock-absorbing buffer are both installed in a cold state, and the first shock-absorbing buffer and the second shock-absorbing buffer are in a half-stroke position in a hot state.

[0010] Preferably, the first shock-absorbing buffer and the second shock-absorbing buffer are arranged at one end of the second receiving portion to form a 90-degree angle.

[0011] Preferably, the first receiving portion is an L-shaped plate; the L-shaped plate includes a first mounting surface and a second mounting surface; the first mounting surface is used to mount the first shock-absorbing buffer via a universal hinge; the second mounting surface is used to mount the second shock-absorbing buffer via a universal hinge.

[0012] Preferably, the second receiving portion includes a first receiving end and a second receiving end; the first receiving end is formed by vertically assembling one end of two H-shaped steels; and one of the H-shaped steels is fixedly connected to the fixed structure.

[0013] Preferably, the two H-shaped steels are further provided with reinforcing ribs; and the first connecting end and the second connecting end are symmetrically arranged.

[0014] Preferably, after the first receiving portion, the second receiving portion, the first receiving portion and the second receiving portion are installed, a closed space is formed inside; and the pipeline installation portion is arranged inside the closed space.

[0015] Preferably, the pipeline mounting portion is arranged on a mounting plane formed by the universal hinge seat on the L-shaped plate in the vertical direction and the radial direction of the pipeline.

[0016] The utility model provides an anti-seismic support for a natural gas long-distance pipeline distribution station with the following features:

[0017] Beneficial effects:

[0018] The seismic support of the present invention adopts a double shock-absorbing buffer design, namely a first shock-absorbing buffer and a second shock-absorbing buffer, which can effectively disperse and absorb the impact of seismic force on the pipeline, thereby greatly improving the safety performance of the pipeline under earthquake. In addition, through the installation method of the universal hinge seat, the shock-absorbing buffer can be freely displaced in multiple directions when an earthquake occurs, further reducing the stress concentration caused by the seismic force on the pipeline. In addition, the structural design of the seismic support also takes into account the convenience of maintenance and inspection. Since the first connecting part is provided with a pipeline installation part, it can be easily disassembled and installed when the pipeline needs to be inspected or replaced, which greatly improves the maintenance efficiency. Through the coordinated installation of the first shock-absorbing buffer, the second shock-absorbing buffer, the first connecting part and the second connecting part, the installation position of the pipeline installation part is formed, so that it can provide multi-directional protection for the radial and horizontal directions of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work, and these are all within the scope of protection of the present invention.

[0020] Figure 1 This is a schematic diagram of an anti-seismic support installed on a pre-buried structure at a natural gas long-distance pipeline distribution station;

[0021] Figure 2 This is an explanatory diagram of the installation of seismic supports on existing structures at distribution stations for long-distance natural gas pipelines;

[0022] Figure 3 This is the installation diagram of the pipeline installation part.

[0023] Figure 4 It is a cross-sectional view of the pipe installation part;

[0024] Parts and numbers in the picture:

[0025] 110-first shock-absorbing buffer, 120-second shock-absorbing buffer; 200-pipeline mounting portion; 310-L-shaped plate, 311-first mounting surface, 312-second mounting surface; 321-first connecting end, 322-second connecting end, 323-H-shaped steel, 324-reinforcement rib; 400-universal hinge seat; 500-fixed structure; 600-enclosed space; 700-mounting plane. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. Moreover, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, elements defined by the phrase "comprises..." do not exclude the presence of additional identical elements in the process, method, article, or device that includes the elements. If there is no conflict, the embodiments of the present invention and the various features therein may be combined with each other and are all within the scope of protection of the present invention.

[0027] Example 1

[0028] See Figure 1 The embodiment of the present invention provides an anti-seismic support for a long-distance natural gas pipeline distribution station. At present, in the distribution stations of long-distance natural gas pipelines, the widely used pressure pipe supports and hangers are mainly sliding supports and guide supports with relatively simple structures. The main functions of these supports are limited to sliding and guiding, and the structures of the few pipe hangers with fixing functions are also relatively simple. Therefore, for those distribution stations with high seismic requirements, the existing standard parts of pipe supports and hangers cannot meet their needs. Especially in areas with high seismic intensity, or for those pressure pipelines that require a high level of seismic resistance, there is currently a lack of suitable standard parts for pipe supports and hangers, especially in the vertical and horizontal radial directions of the pressure pipelines, there is a lack of effective earthquake protection measures. This means that when an earthquake occurs, the pipeline may be displaced, deformed, or even broken due to lack of sufficient support and fixation, resulting in serious safety accidents. Therefore, the development and application of standard parts for pipe supports and hangers with higher seismic performance is of great significance to improving the safety and reliability of long-distance natural gas pipelines.

[0029] See Figure 1 In this embodiment, a seismic support specifically for a distribution station of a long-distance natural gas pipeline is provided. The core components of the support include shock-absorbing buffers, which play a key role in seismic resistance and buffering in the structure. Specifically, the number of these shock-absorbing buffers is at least two, namely a first shock-absorbing buffer 110 and a second shock-absorbing buffer 120. In order to further improve the seismic effect, these shock-absorbing buffers are preferably in the form of dampers. A damper is a device that can absorb and dissipate energy, which can effectively reduce the vibration amplitude of the pipeline when an earthquake occurs, thereby protecting the integrity and safety of the pipeline structure. Through such a setting, even under the action of a strong earthquake, the equipment and pipelines of the distribution station can be effectively protected, ensuring the safety and stability of natural gas transportation.

[0030] See Figure 1 The two ends of the shock-absorbing buffer are respectively fixed and mounted via a first connecting portion and a second connecting portion. The second connecting portion is pre-buried in a preset installation location. To ensure the stability of the second connecting portion, if the actual installation location does not have a structure that can be directly fixed, it is necessary to pre-buried the second connecting portion in a preset location to ensure its structural stability and reliability. This pre-buried method can effectively improve the overall performance of the shock-absorbing buffer, ensuring its stable operation in various complex environments, thereby achieving better shock absorption.

[0031] In this embodiment, one end of the first shock-absorbing buffer 110 and the second shock-absorbing buffer 120 are mounted on corresponding positions of the first receiving portion. The other ends of these shock-absorbing buffers are mounted on corresponding positions of the second receiving portion. In this way, the first receiving portion and the second receiving portion are connected together through the first shock-absorbing buffer 110 and the second shock-absorbing buffer 120, thereby achieving shock absorption and cushioning effects.

[0032] See Figure 1 A pipe mounting portion 200 is also provided on one side of the first receiving portion. The pipe mounting portion 200 is tightly integrated with the first receiving portion by a fixed connection. Such a setting not only ensures the stability and reliability of the pipe mounting portion 200, but also makes the entire structure more compact and integrated. The presence of the pipe mounting portion 200 facilitates the installation of relevant pipes, making the entire device more flexible and convenient in practical applications. By installing the pipe arrangement inside the pipe mounting portion 200, a firm and stable fixed connection is ensured between the pipe to be installed and the pipe mounting portion 200. This setting enables the pipe mounting portion 200 to generate the same vibration or displacement synchronously with the pipe when the pipe is subjected to external vibration or impact, thereby effectively protecting the pipe from damage caused by vibration or failure caused by excessive displacement. This fixed connection method not only improves the overall stability and reliability of the pipeline system, but also ensures that the pipeline can maintain its normal operating state under high-intensity vibration conditions, thereby extending the service life of the pipeline and reducing maintenance costs.

[0033] The first and second shock absorbing buffers 110 and 120 are accurately mounted to the first and second receiving portions, respectively, via universal joints 400. This mounting method ensures that the movement of the shock absorbing buffers in different directions can be effectively buffered and absorbed, thereby improving the stability and safety of the overall structure.

[0034] See Figure 1 and Figure 2 Specifically, the second connecting portion is disposed on the fixed structure 500 and is tightly connected to the fixed structure 500 via some form of fixed connection. This fixed connection method can include welding pre-embedded plates, attaching expansion bolts to existing rooting conditions to achieve flexible installation, or any other method that ensures a secure connection between the two. In this way, the second connecting portion can stably support the second shock-absorbing buffer 120 thereon, ensuring that it will not shift or fall off when subjected to external forces, thereby ensuring the reliability and effectiveness of the entire shock-absorbing system.

[0035] See Figure 1In this embodiment, the fixed structure 500 specifically refers to a ground embedded plate. This ground embedded plate is firmly fixed to the ground, ensuring its stability and reliability. In order to further enhance the strength and stability of the structure, a fixed connection method is adopted between the second receiving part and the ground embedded plate. This fixed connection method can effectively transmit force and ensure the stability of the entire structure. In addition, a kind of inclined reinforcing steel is specially added between the second receiving part and the ground embedded plate. The inclined setting of this reinforcing steel not only increases the bending resistance of the structure, but also can effectively disperse and withstand forces from different directions, thereby further improving the stability and safety of the entire structure. Through such a setting, the entire structure can be more stable and less prone to deformation or damage when subjected to heavy loads or external forces.

[0036] For further information, see Figure 2 The fixed structure 500 specifically includes several forms including steel structure, steel platform and civil wall structure; and the second receiving portion is fixedly arranged on the above-mentioned steel structure, steel platform or civil wall structure.

[0037] Generally, based on the pipe diameter and the location of the additional seismic support points (determined by pipe stress calculations), the two hydraulic dampers are installed in the cold state and in the half-stroke position when hot. The two dampers are installed at a 90° angle and mounted at both ends using universal hinges 400. Universal hinges 400 are then welded to L-shaped plate 310 and H-shaped steel 323. The H-shaped steel 323 is then anchored to the pre-buried ground plate using a combination of diagonal braces and H-shaped steel 323.

[0038] See Figure 3 In this embodiment, the first and second damping buffers 110 and 120 are installed in a cold position. This means that during installation, the damping buffers are at a low temperature, possibly close to ambient temperature or lower than their normal operating temperature (generally speaking, a damper's cold position refers to a position where the internal temperature of the damper is below 50 degrees Celsius). Cold installation ensures that the damping buffers have the proper preload and position in their initial state, thereby ensuring their normal operation under subsequent hot conditions.

[0039] Furthermore, the first and second shock-absorbing buffers 110 and 120 are in a half-stroke position in the hot state. This means that when the shock-absorbing buffers reach their normal operating temperature, or hot state, they extend to half their stroke. This ensures that the shock-absorbing buffers have sufficient travel space in the hot state to absorb and cushion vibrations and impacts caused by equipment operation or external shocks. By maintaining the half-stroke position, the shock-absorbing buffers can effectively perform their shock-absorbing and cushioning functions in the hot state, thereby improving the stability and reliability of the entire system.

[0040] See Figure 3 The first and second shock-absorbing buffers 110 and 120 are mounted at one end of the second receiving portion, forming a 90-degree installation angle between them. This layout ensures effective energy dispersion and absorption when subjected to impact and vibration from various directions, providing a more stable and reliable shock absorption effect. This structural design significantly improves the stability and service life of the entire device, ensuring excellent performance under various complex operating conditions.

[0041] See Figure 4 , the first receiving component is designed to be an L-shaped plate structure. This L-shaped plate 310 has two main mounting surfaces, namely the first mounting surface 311 and the second mounting surface 312. In order to ensure the flexible installation and adjustment of the shock-absorbing buffer, the first mounting surface 311 is connected to the first shock-absorbing buffer 110 through a universal hinge 400. Similarly, the second mounting surface 312 is also connected to the second shock-absorbing buffer 120 through a universal hinge 400. This design not only improves the installation flexibility of the shock-absorbing buffer, but also ensures that forces in different directions can be effectively absorbed and buffered, thereby improving the stability and safety of the overall structure. Through the design of this L-shaped plate 310, the first shock-absorbing buffer 110 and the second shock-absorbing buffer 120 can be adjusted independently to adapt to different working environments and needs, further improving the adaptability and reliability of the system.

[0042] In this embodiment, the second connecting portion consists of two parts: a first connecting end 321 and a second connecting end 322. Specifically, the first connecting end 321 is formed by vertically assembling one end of two H-shaped steels 323. One of these H-shaped steels 323 is fixedly connected to the fixed structure 500 to ensure the stability and rigidity of the entire structure. Furthermore, to further enhance the strength and stability of the structure, these two H-shaped steels 323 are equipped with reinforcing ribs 324.

[0043] Furthermore, the first receiving end 321 and the second receiving end 322 are symmetrically arranged, which helps maintain the balance and uniform stress of the entire structure. When the first receiving portion and the second receiving portion are installed, they form an enclosed space 600 inside, which provides a good protection and support environment for subsequent pipe installation.

[0044] See Figure 1 The pipe mounting portion 200 is positioned within the enclosed space 600 to ensure the safety and stability of the pipe. To further enhance installation flexibility and adaptability, the pipe mounting portion 200 is mounted on a universal hinge 400 on the L-shaped plate 310. This design allows the pipe to be adjusted vertically and radially to accommodate various installation environments. This allows the pipe to be precisely positioned and installed in multiple orientations, ensuring reliability and stability during use.

[0045] In this utility model's technical solution, the first consideration is the pipe diameter and the specific locations where seismic supports need to be installed, determined based on pipe stress calculations. Once these preparatory steps are complete, the next step is to install the two hydraulic dampers while the pipe is cold. When the pipe is heated, the dampers are in the half-stroke position, ensuring their effectiveness and safety during operation.

[0046] The two dampers are mounted at a 90° angle to each other, ensuring they provide comprehensive protection against vibration and impact from various directions. To achieve this, both dampers are mounted with universal hinges 400 at each end. These hinges allow the dampers to adapt to even the slightest vertical and radial displacement of the pipeline, ensuring they maintain their seismic performance across the full 360° of the mounting surface 700°.

[0047] Furthermore, to further enhance the stability and reliability of the seismic support, we welded L-shaped plates 310 and H-shaped steel 323. These components were then firmly anchored to the pre-embedded ground plate using a combination of diagonal braces and H-shaped steel 323. This design not only ensures the stability of the support but also provides a high degree of seismic resistance in the event of natural disasters such as earthquakes. Through stress calculations and verification, we ensured that the seismic support met the highest seismic design requirements.

[0048] The design structure of this seismic support is simple, easy to implement, and reusable. During installation, it can be flexibly adjusted based on the surrounding space. For example, if the surrounding space is limited, the pipe can be adjusted to the outside of the space formed by the two dampers for installation. Furthermore, if there are existing steel structures, steel platforms, civil walls, and other surrounding conditions, the support can be rooted to these existing rooting conditions by welding embedded plates, baseplates, and expansion bolts, thus achieving flexible installation and further improving the convenience and applicability of installation.

[0049] Working principle:

[0050] Under normal operating conditions, when the pressure pipeline is installed with this seismic support, the working principle of the damper is based on the pinhole effect, which achieves energy consumption and shock absorption by setting small holes in specific locations. Specifically, there are one or more small holes inside the damper. When liquid or gas flows through these small holes, a certain amount of resistance and friction will be generated. This resistance and friction will consume part of the energy, thereby achieving the purpose of shock absorption and structural stability. When the pipeline is heated and collided or cooled and contracted, the flow rate of liquid through its small holes is small; the pressure difference is small, and the damper will not work. Therefore, the pipeline will not be restricted or constrained by the support during normal thermal expansion and contraction. However, when encountering an earthquake as high as magnitude 9 (the seismic acceleration reaches 0.4g, and the seismic acceleration corresponding to each earthquake level is different, a magnitude 9 earthquake corresponds to 0.4g; g is the acceleration of gravity, about 9.8m / s 2 ) or stronger earthquakes, the flow through its small holes is large, and the pressure difference generated is large, and the damper will work at this time. The part of the pressure pipe where this seismic support is installed will be constrained by the support in the 360° plane formed by the horizontal radial and vertical directions (seismic acceleration reaches 0.4g). In this way, it can effectively avoid excessive vibration displacement of the pipeline in the radial and vertical directions, and prevent the vibration frequency of the pipeline from being the same as the frequency of the earthquake, thereby avoiding the occurrence of resonance. Once the resonance phenomenon occurs, it may cause serious damage to the pipeline and even cause more serious safety accidents. Therefore, the design and application of this seismic support plays a vital role in ensuring the safe operation of pressure pipelines in extreme earthquake conditions.

[0051] The seismic supports used in long-distance natural gas pipeline distribution stations effectively meet the seismic performance requirements of the station's pressure pipelines in the event of natural disasters such as earthquakes. This innovative measure effectively fills the gap in seismic supports previously available in long-distance natural gas pipeline distribution stations, ensuring the safe operation of the stations. Furthermore, the design of these seismic supports is simple and straightforward, making them easy to manufacture and install, and highly reusable, significantly reducing costs. The installation process is also highly flexible, allowing for quick and efficient deployment based on site spatial conditions, significantly improving construction efficiency.

[0052] More importantly, the introduction of this seismic support significantly improves the safety and stability of pressure pipelines within long-distance natural gas pipeline distribution stations. In extreme situations like earthquakes, it effectively prevents pipeline breakage or damage, thereby avoiding potentially serious consequences such as gas leaks, fires, and even explosions. This not only safeguards the lives of station workers but also provides solid technical support for the stable development of the entire natural gas industry. Through the use of this seismic support, the disaster resistance of long-distance natural gas pipeline distribution stations has been significantly enhanced, laying a solid foundation for the sustainable development of the entire industry.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A seismic support for a natural gas long-distance pipeline distribution station, characterized in that: It comprises a shock-absorbing buffer; both ends of the shock-absorbing buffer are respectively installed through a first receiving portion and a second receiving portion; the shock-absorbing buffer comprises a first shock-absorbing buffer (110) and a second shock-absorbing buffer (120); the second receiving portion is pre-buried in a preset installation position; One end of the first shock-absorbing buffer (110) and the second shock-absorbing buffer (120) are both mounted on the first receiving portion; the other ends of the first shock-absorbing buffer (110) and the second shock-absorbing buffer (120) are both mounted on the second receiving portion; a pipe mounting portion (200) is provided on one side of the first receiving portion; the pipe mounting portion (200) is fixedly connected to the first receiving portion; The first shock-absorbing buffer (110) and the second shock-absorbing buffer (120) are installed at the installation positions of the first receiving portion and the second receiving portion through a universal hinge seat (400); the second receiving portion is provided on a fixed structure (500) and is fixedly connected to the fixed structure (500).

2. The seismic support for a long-distance natural gas pipeline distribution station according to claim 1, characterized in that: The fixed structure (500) is a ground embedded plate; the ground embedded plate is fixed to the ground; the second receiving portion and the ground embedded plate are fixedly connected, and an inclined reinforcement steel is provided between the second receiving portion and the ground embedded plate.

3. The seismic support for a long-distance natural gas pipeline distribution station according to claim 1, characterized in that: The fixed structure (500) is a steel structure, a steel platform or a civil wall structure; the second receiving portion is fixedly arranged on the steel structure, the steel platform or the civil wall structure.

4. The seismic support for a long-distance natural gas pipeline distribution station according to any one of claims 2 or 3, characterized in that: The first shock-absorbing buffer (110) and the second shock-absorbing buffer (120) are both installed in a cold state, and the first shock-absorbing buffer (110) and the second shock-absorbing buffer (120) are in a half-stroke position in a hot state.

5. The seismic support for a long-distance natural gas pipeline distribution station according to claim 4, characterized in that: The first shock-absorbing buffer (110) and the second shock-absorbing buffer (120) are arranged at one end of the second receiving portion to form a 90-degree angle.

6. The seismic support for a long-distance natural gas pipeline distribution station according to claim 1, characterized in that: The first receiving portion is an L-shaped plate (310); the L-shaped plate (310) comprises a first mounting surface (311) and a second mounting surface (312); the first mounting surface (311) is mounted with the first shock-absorbing buffer (110) via a universal hinge seat (400); and the second mounting surface (312) is mounted with the second shock-absorbing buffer (120) via a universal hinge seat (400).

7. The seismic support for a long-distance natural gas pipeline distribution station according to any one of claims 2 or 3, characterized in that: The second receiving portion comprises a first receiving end (321) and a second receiving end (322); the first receiving end (321) is formed by vertically assembling one end of two H-shaped steels (323); and one of the H-shaped steels (323) is fixedly connected to the fixed structure (500).

8. The seismic support for a long-distance natural gas pipeline distribution station according to claim 7, characterized in that: The two H-shaped steels (323) are further provided with reinforcing ribs (324); and the first connecting end (321) and the second connecting end (322) are symmetrically arranged.

9. The seismic support for a long-distance natural gas pipeline distribution station according to claim 6, characterized in that: After the first receiving portion, the second receiving portion, the first receiving portion and the second receiving portion are installed, a closed space (600) is formed inside; the pipeline installation portion (200) is arranged inside the closed space (600).

10. The seismic support for a long-distance natural gas pipeline distribution station according to claim 9, characterized in that: The pipeline installation portion (200) is arranged on an installation plane (700) formed by the universal hinge seat (400) on the L-shaped plate (310) in the vertical direction and radial direction of the pipeline.

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