Pipeline mounting structure beneficial to reducing linear rigidity in pipeline direction

Abstract

The invention provides a pipeline mounting structure, a pipeline mounting structure series, a penetration piece and a mounting method. The pipeline mounting structure comprises a penetrated structure and a through hole, the penetration piece is arranged in the space limited by the penetrated structure; the pipeline is arranged in a space defined by the penetration piece; the penetrating piece comprises an elastic assembly, a connecting piece and a connecting piece, the elastic assembly comprises a plurality of elastic pieces arranged at intervals in the axial direction, and the thickness directions of the elastic pieces are arranged in the axial direction. The elastic assembly is connected with the pipeline and the penetrated structure; through the multiple elastic pieces, vibration isolation between the penetrated structure and the pipeline is achieved, and the penetrated structure provides support for the pipeline.

Description

Technical Field

[0001] This application relates to the field of pipeline technology, specifically to a pipeline installation structure, a series of pipeline installation structures, a penetrating component, and an installation method. Background Technology

[0002] A penetration is a connecting component used to allow a pipe to pass through other structures. Generally, a penetration consists of a sleeve, anchors, and other accessories embedded in the structure to be penetrated (or the structure being penetrated) to provide a passage. The pipe passes through the passage provided by the penetration, and the entire structure forms a pipe installation structure.

[0003] In the design of pipeline installation structures, it is usually necessary for the structure being penetrated to provide multi-directional support to the pipeline, so as to ensure the stiffness in each direction (see...). Figure 1 As shown, the linear stiffness k includes three pairs of orthogonal directions. x k y k z And rotational stiffness k in three directions θx k θy k θz It must meet engineering requirements that are no less than the minimum threshold; it is also necessary to attach a vibration isolation structure to the penetration to achieve vibration isolation between the pipe and the penetrated structure and ensure normal operation.

[0004] Take steam pipes in a nuclear power plant as an example. In some cases, steam pipes pass through walls, floors, or other structures via penetrating structures. These walls and floors, as the penetrated structures, provide multidirectional support for the pipes. The steam-water pipes will vibrate under fluid-structure interaction. If this vibration propagates to the walls, floors, etc., it may cause vibration and noise in areas such as the control room, thereby affecting normal equipment operation and personnel work, such as impacting comfort.

[0005] Improving vibration isolation requires appropriately reducing stiffness in the isolation direction. However, pipe installation structures typically exhibit significant multi-directional mechanical coupling effects; altering stiffness in one direction leads to changes in stiffness, load-bearing capacity, and other mechanical properties in other directions. Therefore, there is an urgent need in this field for a pipe installation structure that can effectively reduce axial (pipe direction) support stiffness to improve vibration isolation performance while maintaining adequate load-bearing capacity in the axial and other directions.

[0006] In view of this, this application provides a new pipe installation structure, a series of pipe installation structures, a through-hole component, and an installation method to meet at least one or a combination of the above technical requirements. Summary of the Invention

[0007] The first aspect of this application aims to provide a pipe installation structure.

[0008] The second aspect of this application aims to provide a series of pipe installation structures.

[0009] The third aspect of this application aims to provide a penetrating member.

[0010] The purpose of the fourth aspect of this application is to provide an installation method.

[0011] According to the first aspect of this application, the pipe installation structure includes: a penetrating structure; a penetrating element disposed within a space defined by the penetrating structure; and a pipe disposed within the space defined by the penetrating element. The penetrating element includes: an elastic component; the elastic component includes a plurality of elastic sheets spaced apart axially, the thickness direction of the plurality of elastic sheets being axially arranged; the elastic component connects the pipe and the penetrating structure; and the plurality of elastic sheets achieve vibration isolation between the penetrating structure and the pipe, and provide support from the penetrating structure to the pipe.

[0012] Compared to a single elastic body used as a theoretical reference, dividing a single elastic body into several spaced-apart elastic sheets to form an elastic component enables the penetrating element to provide the axial linear stiffness (k) of the pipe. x ) and other anisotropic support stiffness (k y k z k θx k θy k θz Decoupling helps improve axial (i.e., pipe direction) vibration isolation while maintaining load-bearing capacity in other directions. Specifically, the through-type component mainly utilizes out-of-plane (thickness direction) bending and shear deformation of elastic sheets or elastomers to achieve axial vibration isolation, and relies on the in-plane (plane direction perpendicular to the thickness direction) stiffness of the elastic sheets or elastomers to ensure the load-bearing capacity against deformation in other directions. Therefore, its axial linear stiffness is dominated by the out-of-plane bending stiffness of several elastic sheets or elastomers, and its value is approximately proportional to the cube of the thickness of a single elastic sheet or elastomer; while the support stiffness in other directions is dominated by the in-plane stiffness of several elastic sheets or elastomers, and its value is approximately proportional to the first power of the thickness of a single elastic sheet or elastomer. Compared to using a monolithic elastomer, dividing it into several thinner, spaced elastic sheets allows for a nonlinear reduction (sudden drop) in the axial linear stiffness of the pipeline, while the stiffness in other directions remains essentially unchanged or changes only slightly. This achieves weak coupling between the axial linear stiffness and the stiffness in other directions, which is beneficial for improving axial vibration isolation performance by reducing the axial linear stiffness, while also meeting the axial load-bearing requirements to a certain extent and maintaining the load-bearing performance in other directions.

[0013] In some embodiments, the through-hole includes a plurality of resilient components spaced apart along the axial direction.

[0014] In some embodiments, the through-piece further includes a first pad and a second pad; the first pad is disposed between adjacent elastic sheets of a single elastic component; the second pad is disposed between adjacent elastic components; the first pad and the elastic sheet, and the second pad and the elastic sheet are in surface contact.

[0015] In some embodiments, the number of elastic components is two, and the two elastic components are symmetrically distributed along the axial direction on opposite sides of the penetrated structure and extend beyond the opposite sides of the penetrated structure.

[0016] In some embodiments, the through member further includes a pre-tightening device for applying an axial pre-tightening force to the elastic component to pre-tighten the elastic component.

[0017] In some embodiments, the penetrating member includes two elastic components with a first gap between them, the size of which is within the range of h + 20 mm ≤ Δ1 ≤ 1.5h, where h is the thickness of the penetrating structure (in mm); a second gap Δ2 is between adjacent elastic sheets of a single elastic component, the size of which is within the range of 0.1 mm ≤ Δ2 ≤ 0.3 mm; a single elastic component includes 10 to 20 elastic sheets; the thickness of a single elastic sheet is in the range of 0.5 mm to 2 mm, and the ratio of the circumference width to the thickness of a single elastic sheet is greater than 20 times.

[0018] In some embodiments, the pipe installation structure is used in a nuclear power plant, the pipe is a steam-water pipe, and the penetrated structure is a concrete structure.

[0019] According to the second aspect of this application, a series of pipe installation structures includes at least two pipe installation structures as described in the first aspect, wherein the through-piece provided by the two pipe installation structures is configured to differ in at least one of the following: the number of elastic components, a first gap between a plurality of elastic components, the number of elastic sheets in a single elastic component, the thickness, a second gap between the elastic sheets, and the preload of the elastic components.

[0020] The penetrator according to the third aspect of this application is a penetrator as described in the first aspect, used for a pipe installation structure.

[0021] According to the fourth aspect of this application, the method for installing a penetrating element is used to provide a penetrating element as described in the first aspect, wherein the penetrating structure defines a space for providing the penetrating element and through which the pipe passes; the installation method includes: A first spacer is placed inside the space to define a first gap between two elastic components. The two elastic components are symmetrically assembled from opposite sides and connected to the pipe. A second spacer is placed between adjacent elastic pieces of each elastic component to define a second gap between adjacent elastic pieces. Attached Figure Description

[0022] The above and other features, properties, and advantages of this application will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always denote the same features. It should be noted that these drawings are merely illustrative and are not drawn to scale, and should not be construed as limiting the scope of protection actually claimed by this application, wherein: Figure 1 This is a schematic diagram of the pipe and the penetrated structure in one embodiment.

[0023] Figure 2 This is a schematic diagram of a through-hole component and the pipe installation structure formed by the through-hole component in one embodiment.

[0024] Figure 3 This is a schematic flowchart illustrating an embodiment of a method for installing a through-hole component.

[0025] Figure 4 This is a schematic diagram of the through-hole component and the pipe installation structure formed by the through-hole component in a comparative scheme.

[0026] Explanation of reference numerals in the attached figures: 1. Penetrating component; 11. Elastic assembly; 12. Elastic sheet; 13. First pad; 14. Second pad; 15. Pre-tightening device; 16. Connecting component; 2. Pipeline; 3. Structure that is penetrated.

[0027] Comparison of options: 11a. Elastomers. Detailed Implementation

[0028] Reference will now be made in detail to various embodiments of this application, examples of which are shown in the accompanying drawings and described below. Although this application will be described in conjunction with exemplary embodiments, it should be understood that this application is not intended to be limited to those exemplary embodiments. Rather, this application is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents, and other embodiments that may be included within the spirit and scope of this application as defined by the appended claims.

[0029] This application uses specific terms to describe embodiments of the application. For example, "an embodiment" and / or "one embodiment" refers to a feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment" or "one embodiment" mentioned twice or more in different locations in this application does not necessarily refer to the same embodiment. Furthermore, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined. In the following description, the orientation or positional relationship indicated by terms such as "upper," "lower," "inner," "outer," "front," "rear," or other directional terms is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or component referred to must have a specific orientation, be constructed and / or implemented in a specific orientation, and therefore should not be construed as a limitation of the application. In this application, the terms "first," "second," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying positional relationships or order of importance. In the following description, unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly; for example, they can refer to fixed connections or movable connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0030] This application uses flowcharts to illustrate the operations performed according to embodiments of this application. It should be understood that, depending on the actual situation, the steps shown in the diagrams are not necessarily performed sequentially, and other operations may be added to these processes, or one or more steps may be removed from these processes.

[0031] Unless otherwise expressly stated, this application uses the term "axial" to refer to the direction of extension of the pipe, that is, the direction along or parallel to the central axis of the pipe, or referred to as the "pipe direction," such as the x-direction shown in the attached figures. The term "radial" refers to the direction perpendicular to the "axial" direction, or referred to as "lateral," such as the y-direction or z-direction perpendicular to the x-direction. The term "circumferential" refers to the direction of rotation about the "axial" direction.

[0032] It is understood that the pipe installation structure, pipe installation structure series, penetration component and installation method provided in this application are particularly suitable for enabling steam pipes in nuclear power plants to pass through walls. They can also be applied to other applicable occasions, such as for other types of pipes or other types of penetrated structures, without limitation.

[0033] As introduced above, a penetration is a connecting component used to meet the engineering requirements of a pipeline passing through other structures (or the structure being penetrated). Generally, a penetration consists of a sleeve embedded in the structure being penetrated, anchors, and other accessories. The penetration is attached to the structure being penetrated to provide a passage, through which the pipeline passes through the structure, thus the pipeline, the penetration, and the structure being penetrated together constitute a pipeline installation structure.

[0034] In pipeline installation structure design, the structure penetrated by the pipeline (or the penetrated structure, such as a wall or floor slab) is used as the supporting boundary, providing multi-directional support to the pipeline. The load-bearing performance of the pipeline installation structure includes deformation control capacity determined by stiffness and load-bearing capacity determined by strength. In engineering, the multi-directional stiffness (e.g., the stiffness provided by the penetrated structure to the pipeline) is usually required. Figure 1 As shown, the linear stiffness (kx, ky, kz) and rotational stiffness (kθx, kθy, kθz) in the three orthogonal directions are not less than a predetermined minimum threshold.

[0035] However, if the support stiffness is too high, significant vibration transmission will occur between the pipe and the structure it penetrates. The vibration of the pipe transmitted to the penetrated structure will cause external vibration and noise problems. Therefore, vibration isolation is also required between the pipe and the penetrated structure to keep the vibration of the penetrated structure within an acceptable range, preventing the pipe's vibration from propagating to the outside and causing noise problems, thus ensuring normal equipment operation and personnel work.

[0036] Improving vibration isolation performance requires appropriately reducing the support stiffness in the vibration isolation direction. When the support stiffness is at the minimum threshold determined based on load-bearing requirements, vibration isolation performance can be maximized while meeting load-bearing requirements, thus creating a need for precise stiffness optimization. Furthermore, the requirements for vibration isolation and load-bearing capacity of pipeline installation structures differ in different directions, leading to different stiffness requirements in each direction, thus creating a need for synergistic optimization of multi-directional stiffness.

[0037] Conventional pipe installation structures and through-hole designs typically exhibit significant multi-directional mechanical coupling effects. Changing the stiffness in one direction can alter the stiffness, strength, and other mechanical properties in other directions, making it difficult to simultaneously meet stiffness requirements in different directions. In particular, if different directions require improved vibration isolation or load-bearing capacity, the stiffness must be correspondingly reduced or increased, creating a conflict. By selecting appropriate materials, such as damping alloys or fiber-reinforced plastics (FRP), the anisotropic nature of the material's mechanical properties can be utilized to match the stiffness requirements in different directions. However, due to the inherent properties of the materials, the range of designable / controllable stiffness in conventional pipe installation structures remains quite limited.

[0038] There is a need in this field to further develop technologies that facilitate stiffness optimization. In particular, there is a need for a pipe installation structure that can effectively reduce the support stiffness in the pipe direction (i.e., axial and x-direction) to improve vibration isolation performance, while also ensuring the load-bearing requirements in the axial and other directions.

[0039] Figure 2 The diagram schematically illustrates the axial cross-section of a pipe installation structure and its penetrating element according to an embodiment of this application. This is, for example, used in a nuclear power plant to meet the engineering requirements of a pipe 2 (such as a nuclear power plant steam-water pipe) passing through a penetrating structure 3 (such as a wall, floor slab, or other concrete structure), but is not intended to limit the application. The penetrating element 1 includes an elastic component 11. The elastic component 11 includes a plurality of elastic sheets 12 spaced apart along the axial direction; for example, the elastic sheet 12 is an annular component fitted between the pipe 2 and the penetrating structure 3, or separate arc-shaped components, etc. The elastic sheet 12 refers to an elastic sheet-like structure, such as a steel sheet made of spring steel, with its thickness direction arranged axially. The elasticity of the elastic sheet 12 is used to achieve vibration isolation and control the deformation of the pipe. The elastic component 11 connects the pipe 2 and the penetrating structure 3; for example, the inner circumference of the elastic component 11 is fixedly connected to the pipe 2 via a connector 16, and / or the outer circumference of the elastic component 11 is fixedly connected to the penetrating structure 3, etc. Thus, through multiple elastic sheets 12, vibration isolation between the penetrated structure 3 and the pipe 2 is achieved, and the penetrated structure 3 provides support to the pipe 2.

[0040] In the penetrating member, compared to using a single elastomer, using the elastic component 11 composed of several spaced-apart elastic sheets 12 described above allows the axial linear stiffness (kx) provided by the penetrating member 1 to be higher than that of other axial stiffnesses (k... y k z k θx k θy k θz Decoupling is beneficial for improving axial vibration isolation performance by reducing axial linear stiffness, and can meet the axial load-bearing requirements to a certain extent by using elastic components, while maintaining the load-bearing performance in other directions (such as meeting the requirements for controlling deformation).

[0041] Here, the elastomer used for theoretical comparison specifically refers to an elastomer whose transverse cross-section is approximately the same as that of the elastic sheet 12, and whose thickness is the sum of the thicknesses of several elastic sheets 12 of an elastic component 11. In other words, the elastomer is an integral structure made of a material equal in amount to the several elastic sheets 12 of the elastic component 11 (the several elastic sheets 12 can be considered as several thinner sheets divided axially from a single elastomer). For example... Figure 4 A comparative scheme is shown, which is compared with Figure 2 The difference in the embodiment shown is that the elastic component 11 is replaced by an elastomer 11a.

[0042] Specifically, the through-hole component primarily utilizes the out-of-plane (thickness direction) bending and shear deformation of several elastic plates 12 or elastic bodies 11a to achieve axial vibration isolation, and relies on the in-plane (plane direction perpendicular to the thickness direction) stiffness of several elastic plates 12 or elastic bodies 11a to ensure the load-bearing performance against deformation / displacement in other directions. Therefore, the axial linear stiffness provided by the through-hole component to the pipe is dominated by the out-of-plane bending stiffness of the elastic plates 12 or elastic bodies 11a, the value of which is approximately proportional to the cube of the thickness of a single elastic plate 12 or elastic body 11a; while the supporting stiffness in other directions is dominated by the in-plane stiffness of the elastic plates 12 or elastic bodies, the value of which is approximately proportional to the first power of the thickness of a single elastic plate 12 or elastic body 11a. Therefore, compared to using a whole elastic body 11a, dividing it into several thinner, spaced elastic sheets 12 can reduce the axial linear stiffness nonlinearly (drop sharply), while the stiffness in other directions remains basically unchanged or only changes slightly. This achieves weak coupling between the axial linear stiffness and the stiffness in other directions, which is beneficial to improve the axial vibration isolation performance by reducing the axial linear stiffness, and to a certain extent meets the axial load-bearing requirements, while maintaining the load-bearing performance in other directions (such as meeting the requirements for controlling deformation).

[0043] It can be understood that there is a designable second spacing between adjacent elastic sheets 12 of a single elastic component 11. Reducing the second spacing helps to effectively distribute local loads to more elastic sheets 12, avoiding instability and deformation of a single elastic sheet 12 and failure of the entire elastic component 11.

[0044] like Figure 2 As shown, in some embodiments, the through-piece 1 includes a plurality of elastic components 11 spaced apart along the axial direction; in other words, based on the fact that each elastic component 11 includes a plurality of spaced elastic sheets 12, the entire through-piece 1 provides a plurality of spaced elastic components 11. Providing a plurality of elastic components 11 helps to constrain the radial bending deformation of the pipe and provides a designable first spacing between adjacent elastic components 11 to optimize the bending stiffness of the pipe 2 provided by the through-piece 1.

[0045] like Figure 2As shown, in some embodiments, the through-piece 1 further includes a first pad 13 and a second pad 14; the first pad 13 is disposed between adjacent elastic sheets 12 of a single elastic component 11; the second pad 14 is disposed between adjacent elastic components 11; the first pad 13 and the elastic sheet 12, and the second pad 14 and the elastic sheet 12 are in surface contact. This design allows the first pad 13 to define a first gap between adjacent elastic components 11, and the second pad 14 to define a second gap between adjacent elastic sheets 12; the surface contact between the elastic sheet 12 and the first pad 13 and the second pad 14 facilitates load distribution. In some embodiments, the first pad 13 and the second pad 14 are detachable, allowing the first gap and the second gap to be adjusted.

[0046] It can be understood that, in some embodiments, the multiple elastic sheets 12 of the elastic component 11 are provided with pads on both the radial outer and inner circumferential sides to maintain the gap between the elastic sheets 12 and constrain the deformation of the elastic element, thereby preventing pull-out failure. For example Figure 2 As shown, the second pad 14 and the first pad 13 are disposed on the outer peripheral side; on the inner peripheral side of the through member 1, a third pad is also provided between adjacent elastic sheets 12 via the connector 16 between the elastic component 11 and the pipe 2.

[0047] like Figure 2 As shown, in some embodiments, the number of elastic components 11 is two; specifically, the two elastic components 11 are symmetrically distributed along the axial direction on opposite sides of the supported structure and extend beyond the surfaces of the opposite sides of the penetrated structure 3 (such as a wall). Using two elastic components 11 allows for the design of the first gap. Appropriately limiting the first gap facilitates adjusting the natural frequency of the pipe installation structure to avoid resonance. Compared to a comparative scheme with only one set of elastic components 11, increasing the number of elastic components 11 to two is more conducive to suppressing the lateral bending deformation of the pipe. Extending the elastic components 11 beyond the surfaces of the opposite sides of the penetrated structure 3 helps to increase the first gap to improve structural stability; specifically, while meeting the minimum bending stiffness threshold requirement, increasing the first spacing of the elastic components 11 can reduce local stress concentration in the pipe and reduce the rigid constraint of the elastic components 11 on the pipe 2, thereby allowing the pipe to undergo acceptable deformation to avoid damage when the pipe 2 and the penetrated structure 3 are misaligned. This design also allows for meeting engineering needs with fewer elastic plates 12, thereby significantly reducing the axial linear stiffness provided by the penetrating member 1 to the pipe 2 and improving axial vibration isolation performance.

[0048] like Figure 2As shown, in some embodiments, the through-piece 1 further includes a pre-tightening device 15; the pre-tightening device 15 is used to apply an axial pre-tightening force to the elastic component 11 so that the elastic component 11 forms a pre-tightened (compressed) integral structure. It can be understood that the pre-tightening device 15 can be applied by threading the elastic component 11 to apply the pre-tightening force, or it can take other forms, such as using a hydraulic device or an elastic device. Under load interaction, the through-piece 1 is at risk of pull-out failure, that is, the elastic sheet 12 and the connecting parts therebetween may axially separate, resulting in a sharp drop in support stiffness; in particular, when the pipe 2 is arranged in a horizontal direction, the load interaction and the vibration isolation direction are basically horizontal, and the elastic component 11 cannot form a compressed state by its own weight; therefore, it is necessary to use the pre-tightening device 15 to apply a pre-tightening force to prevent the through-piece 1 from pull-out failure, eliminate the gap caused by the loosening of the elastic sheet 12, and keep the entire elastic component 11 in a rigid connection with basically no relative slippage between the parts, maintain support stability and improve load-bearing performance.

[0049] In some embodiments, the penetrator and penetrator 1 are used in nuclear power plants, the pipe 2 is a steam-water pipe such as a steam pipe, and the penetrated structure 3 is a concrete structure such as a wall or floor slab. A steam-water pipe refers to a pipe used to transport steam or water.

[0050] For example Figure 2The illustration shows an example of a nuclear power plant steam pipe horizontally passing through a concrete wall; this example is particularly applicable to concrete walls with a wall thickness h ranging from 100 mm to 300 mm. The pipe 2 and the elastic plate 12 are made of high-strength steel. The pre-tightening device 15 includes a connecting component and threaded fasteners. The connecting component passes through the elastic plates 12 and the second pad 14 of the two elastic components 11, and also passes through the first pad 13 between the two elastic components 11. The end of the connecting component is fastened by the threaded fasteners to generate a pre-tightening force. The two elastic components 11 and the first and second pads are axially compressed into a single unit by the pre-tightening device 15. The pre-tightening force provided by the pre-tightening device 15 is in the range of 5 kN to 10 kN to prevent the elastic components 11 from pulling out and failing. The first spacer 13 defines a first gap Δ1 between adjacent elastic components 11. The first gap Δ1 needs to be determined according to the lateral bending resistance requirements. The size range of the first gap Δ1 is: h + 20 mm ≤ Δ1 ≤ 1.5h, where h is the thickness of the penetrated structure (unit: mm), so that the elastic components 11 on both sides extend at least 10 mm beyond the surface of the penetrated structure (wall). Appropriately defining the first gap avoids insufficient bending stiffness due to an excessively large gap, or stress concentration problems in the pipe due to an excessively small gap. The second spacer 14 defines a second gap Δ2 between adjacent elastic sheets 12 of a single elastic component 11. The size range of the second gap Δ2 is: 0.1 mm ≤ Δ2 ≤ 0.3 mm. Appropriately defining the second gap avoids easy deformation of the elastic sheet 12 and easy pull-out failure of the elastic component 11 due to an excessively large gap, or easy contact and unexpected stress between adjacent elastic sheets 12 under large deformation due to an excessively small gap. A single elastic component 11 includes 10 to 20 elastic sheets 12. The thickness of a single elastic plate 12 ranges from 0.5 mm to 2 mm, and the circumference width of a single elastic plate 12 is more than 20 times its thickness. Appropriately setting the number and thickness of the elastic plates 12 ensures that each plate meets its own stiffness and strength requirements, provides sufficient support stiffness for the pipe 2, and that using thinner elastic plates 12 improves axial vibration isolation performance. Actual measurements show that, compared to a conventional pipe installation structure, the pipe installation structure in this example significantly reduces the axial linear stiffness of the pipe 2 by approximately 40%, resulting in a significant improvement in axial vibration isolation performance and meeting the load-bearing requirements in both axial and other directions.

[0051] This application also provides a series of pipe installation structures, which include at least two pipe installation structures. The through-piece 1 provided by the two pipe installation structures is configured to differ in at least one of the following: the number of elastic components 11, the first gap between adjacent elastic components 11, the number of elastic pieces 12 in a single elastic component 11, the thickness, the second gap between adjacent elastic pieces 12, and the preload of the elastic components 11, so that the at least two pipe installation structures can be adapted to different actual engineering needs respectively.

[0052] like Figure 3 As shown, this application also provides an installation method for assembling the penetrating member 1 and providing a pipe installation structure, wherein the penetrating structure 3 provides a passage for the penetrating member 1 and the pipe 2 to pass through. The installation method includes: S1. Pass the pipe 2 through the channel, place the first pad 13 inside the channel to define the first gap between the two elastic components 11, symmetrically assemble the two elastic components 11 from opposite sides and connect them to the pipe 2, and place the second pad 14 between adjacent elastic pieces 12 of each elastic component 11 to define the second gap between adjacent elastic pieces 12; This pipe installation structure and method has strong engineering applicability, simple structure, easy installation, and is easy to implement in the pipeline system.

[0053] S2. The pre-tightening device 15 applies pre-tightening force to the penetrating member 1 on both sides along the axial direction, so that the penetrating member 1 is configured as a pre-tightened whole, and is used to continuously apply pre-tightening force during the operation of the pipeline 2 to compensate for the gap, prevent the elastic sheet 12 and the connecting parts such as the pad block from pulling out and failing, and ensure the support stiffness of the pipeline.

[0054] S3. Test the axial stiffness of the pipe installation structure to provide support for pipe 2 in all directions, including applying an axial load to pipe 2 to cause out-of-plane bending and shear deformation of elastic sheet 12 to verify whether the axial linear stiffness meets the requirements for vibration isolation and load bearing; also includes applying loads in other directions to cause in-plane tensile and compressive deformation of elastic sheet 12 to verify whether the stiffness in other directions meets the requirements for load bearing.

[0055] In summary, the beneficial technical effects of this application include, but are not limited to, at least one of the following: The use of an elastic component composed of several spaced-apart elastic sheets facilitates the provision of axial linear stiffness (k) to the pipeline installation structure. x ) and other anisotropic support stiffness (k y k z k θx k θy k θz Decoupling is beneficial for improving axial vibration isolation performance by reducing axial linear stiffness, while meeting axial load requirements and maintaining load performance in other directions.

[0056] While this application discloses preferred embodiments as described above, it is not intended to limit the scope of this application. Any changes and modifications can be made by those skilled in the art without departing from the spirit and scope of this application. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application, without departing from the content of the technical solution of this application, fall within the protection scope defined by the claims of this application.

Claims

1. A pipe installation structure, characterized in that, include: Penetrated structure; A penetrating element, wherein the penetrating element is disposed within the space defined by the penetrating structure; The conduit is disposed within the space defined by the penetrating member; wherein, The penetrating element includes: an elastic component; The elastic component includes a plurality of elastic sheets spaced apart along the axial direction, wherein the thickness direction of the plurality of elastic sheets is arranged along the axial direction; The elastic component connects the pipe and the penetrated structure; the multiple elastic sheets achieve vibration isolation between the penetrated structure and the pipe, and the penetrated structure provides support to the pipe.

2. The pipe installation structure according to claim 1, characterized in that, The through-hole includes a plurality of elastic components spaced apart along the axial direction.

3. The pipe installation structure according to claim 2, characterized in that, The through-piece further includes a first pad and a second pad; the first pad is disposed between adjacent elastic sheets of a single elastic component; the second pad is disposed between adjacent elastic components; the first pad and the elastic sheet, and the second pad and the elastic sheet are in surface contact.

4. The pipe installation structure according to claim 1, characterized in that, The number of elastic components is two, and the two elastic components are symmetrically distributed along the axial direction on opposite sides of the penetrated structure and extend beyond the surfaces of the opposite sides of the penetrated structure.

5. The pipe installation structure according to claim 1, characterized in that, The through-hole component further includes a pre-tightening device; the pre-tightening device is used to apply an axial pre-tightening force to the elastic component so that the elastic component is pre-tightened.

6. The pipe installation structure according to claim 2, characterized in that, The penetrating member includes two elastic components with a first gap between them. The size of the first gap Δ1 is within the range of h + 20 mm ≤ Δ1 ≤ 1.5h, where h is the thickness of the penetrating structure (in mm). A second gap Δ2 is formed between adjacent elastic sheets of a single elastic component. The size of the second gap Δ2 is within the range of 0.1 mm ≤ Δ2 ≤ 0.3 mm. A single elastic component includes 10 to 20 elastic sheets. The thickness of a single elastic sheet is in the range of 0.5 mm to 2 mm, and the ratio of the circumference width to the thickness of a single elastic sheet is greater than 20.

7. The pipe installation structure according to claim 1, characterized in that, Used in nuclear power plants, the pipeline is a steam-water pipeline, and the penetrated structure is a concrete structure.

8. A series of pipe installation structures, characterized in that, Includes at least two pipe mounting structures as described in any one of claims 1 to 7; the penetration provided by the two pipe mounting structures is configured as follows: At least one of the following is different: the number of elastic components, the first gap between multiple elastic components, the number and thickness of the elastic sheets in a single elastic component, the second gap between the elastic sheets, and the preload of the elastic component.

9. A penetrating member, characterized in that, The through-hole component is the through-hole component as described in any one of claims 1 to 7, used in a pipe installation structure.

10. An installation method, characterized in that, A pipe installation structure as described in any one of claims 1 to 7, wherein the penetrated structure defines a space for accommodating the through member and through which the pipe passes; the installation method includes: A first spacer is disposed within the space to define a first gap between the two elastic components. The two elastic components are symmetrically assembled from opposite sides and connected to a conduit. A second spacer is disposed between adjacent elastic sheets of each elastic component to define a second gap between adjacent elastic sheets.

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