Elbow supporting leg for high-temperature pipeline and high-temperature pipeline

Abstract

The utility model provides an elbow supporting leg for a high-temperature pipeline and the high-temperature pipeline, and belongs to the field of high-temperature pipelines, a supporting assembly comprises a supporting leg body and a supporting foot which are used for supporting the high-temperature pipeline, and the supporting leg body and the supporting foot can horizontally move along with thermal deformation of the high-temperature pipeline; the supporting leg body comprises a first supporting leg body and a second supporting leg body which are arranged at intervals from top to bottom, the first supporting leg body, the heat insulation net cylinder and the second supporting leg body are sequentially and coaxially connected from top to bottom, the top end of the first supporting leg body is fixedly connected with a high-temperature pipeline, the bottom end of the first supporting leg body is connected with the top end of the heat insulation net cylinder, and the top end of the second supporting leg body is connected with the bottom end of the heat insulation net cylinder. And supporting feet are arranged at the bottom ends of the second supporting legs. Compared with the prior art, by improving an existing supporting leg, the technical problem that the existing supporting leg cannot adapt to supporting of a high-temperature pipeline is solved.

Description

Technical Field

[0001] This utility model belongs to the field of high-temperature pipelines, and more specifically, it relates to a elbow support leg for high-temperature pipelines. This utility model also relates to a high-temperature pipeline. Background Technology

[0002] The temperature range of high-temperature pipelines generally refers to temperatures above room temperature, with the specific temperature depending on the application and material of the pipeline. Generally, the temperature of high-temperature pipelines can reach several hundred degrees Celsius or even higher. A detailed explanation is as follows: 1. Definition of High-Temperature Pipelines: High-temperature pipelines are pipeline systems used to transport fluids or gases, with operating temperatures far exceeding room temperature. The specific temperature varies depending on the application field; for example, in industrial applications, the temperature of high-temperature pipelines may reach several hundred degrees Celsius. 2. Application Scenarios and Temperature Ranges: High-temperature pipelines are widely used in industries such as petroleum, chemical, and power. In petroleum refining and chemical production processes, many processes require high-temperature environments, thus high-temperature pipelines play a crucial role in these fields. In the power industry, high-temperature steam pipelines are used to transport steam generated during power generation. The temperature range of these pipelines can reach several hundred degrees Celsius or even higher, depending on the specific application scenario. 3. Material Selection: High-temperature pipelines need to withstand the pressure and corrosion of high-temperature environments, therefore, high requirements are placed on the materials used. Commonly used materials include high-temperature resistant alloy steel, stainless steel, and special ceramics. These materials have good high-temperature resistance, corrosion resistance, and mechanical properties, ensuring the safe operation of the pipeline.

[0003] During pipeline installation, appropriate support legs or brackets are required. While connecting to the high-temperature pipeline, these support legs or brackets also exchange heat with it, causing them to heat up and adversely affecting their strength. Furthermore, the thermal deformation of the high-temperature pipeline can generate radial shear forces on the support legs or brackets, posing a potential threat to their stability. In short, existing support legs or brackets are unsuitable for supporting high-temperature pipelines and urgently need improvement. Utility Model Content

[0004] The purpose of this utility model is to provide a elbow support leg for high-temperature pipelines, so as to solve the technical problem that existing support legs cannot adapt to the support of high-temperature pipelines.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a high-temperature pipeline elbow support leg, comprising:

[0006] The support assembly includes a leg body and a support foot for supporting a high-temperature pipe, the leg body and the support foot being able to move horizontally in response to the thermal deformation of the high-temperature pipe;

[0007] The heat insulation component includes a heat insulation mesh cylinder. The support leg body includes a first support leg and a second support leg arranged at intervals from top to bottom. From top to bottom, the first support leg, the heat insulation mesh cylinder, and the second support leg are coaxially connected in sequence. The top end of the first support leg is fixedly connected to a high-temperature pipe, and the bottom end is connected to the top end of the heat insulation mesh cylinder. The top end of the second support leg is connected to the bottom end of the heat insulation mesh cylinder, and the bottom end of the second support leg is provided with the support foot.

[0008] In one possible implementation, the support assembly further includes a sliding mechanism disposed below the support foot. The sliding mechanism includes a lower base plate, a first sliding plate, and a second sliding plate arranged in a staggered manner from bottom to top. The lower surface of the first sliding plate is fixedly connected to the upper surface of the lower base plate. The upper surface of the first sliding plate is slidably adapted to the lower surface of the second sliding plate. The upper surface of the second sliding plate is fixedly connected to the lower end surface of the support foot.

[0009] In one possible implementation, the heat-insulating mesh cylinder includes a first mesh cylinder and a second mesh cylinder coaxially sleeved around the outer periphery of the first mesh cylinder, wherein the second mesh cylinder and the space between the first and second mesh cylinders are filled with heat-insulating material.

[0010] In one possible implementation, the support leg body further includes a support tube with a cylindrical shaft disposed on the outer periphery of the heat insulation mesh cylinder, the top and bottom ends of the support tube being connected to the first support leg and the second support leg respectively, and the support tube having heat dissipation holes on its wall.

[0011] In one possible implementation, the sliding mechanism further includes a dustproof bag, which covers the outer periphery of the first and second sliding plates.

[0012] In one possible implementation, the heat insulation component further includes fixing rings, the number of which is at least two, the two fixing rings being respectively disposed at the top and bottom ends of the heat insulation mesh cylinder, the fixing rings being elastic fixing rings, and the fixing rings being interference-fitted with the inner wall of the support tube.

[0013] In one possible implementation, a graphite block is embedded in the upper surface of the first skateboard.

[0014] Compared with existing technologies, the advantages of the high-temperature pipeline elbow support provided by this utility model are as follows:

[0015] This invention, through the structural cooperation of the support component and the thermal insulation component, enables the outrigger body to slide synchronously with the thermal deformation of the pipeline under high-temperature conditions. The axial series design of the thermal insulation mesh effectively blocks the path of heat transfer along the longitudinal direction of the outrigger, while the air convection channel formed by the mesh structure enhances the heat dissipation capacity. The segmented design of the first and second outriggers not only ensures the axial load-bearing strength of the support structure, but also releases thermal stress through the thermal insulation mesh connected in the middle, solving the technical problem of traditional rigid outriggers causing limited pipeline deformation or outrigger breakage due to thermal expansion.

[0016] Secondly, the three-layer superimposed sliding mechanism enables low-friction sliding of the support leg during thermal displacement. The fixed connection between the first sliding plate and the base plate provides a stable base, while the rigid connection between the second sliding plate and the support leg ensures effective transmission of driving force, solving the technical problem of traditional sliding supports causing obstruction of pipeline thermal displacement or abnormal wear due to excessively high friction coefficient.

[0017] Furthermore, the nested structure of double-layer mesh cylinders enables the synergistic effect of multi-level thermal insulation barriers. The first mesh cylinder serves as the core load-bearing framework, while the second mesh cylinder forms the outer protective layer. The thermal insulation material (such as ceramic fiber or aerogel) between the two layers further inhibits heat conduction by locking in air through the pores, thus solving the technical defect of single-layer thermal insulation structures that are prone to a sharp drop in thermal insulation performance due to material aging. At the same time, the double-mesh cylinder structure improves the overall compressive strength.

[0018] Another objective of this utility model is to provide a high-temperature pipeline, including the high-temperature pipeline elbow support mentioned above.

[0019] Compared with the prior art, the high-temperature pipeline of this utility model has all the advantages of the elbow support for high-temperature pipelines mentioned above, which will not be elaborated here. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0021] Figure 1 A schematic diagram of the overall structure of the elbow support leg for high-temperature pipelines provided by this utility model;

[0022] Figure 2 This is a schematic diagram of the thermal insulation component.

[0023] Figure 3 This is a schematic diagram of the sliding mechanism in the elbow support leg of the high-temperature pipeline of this utility model.

[0024] In the picture:

[0025] 1. Support assembly; 11. First leg; 12. Second leg; 13. Support tube; 14. Support foot; 15. Sliding mechanism; 151. Lower base plate; 152. First skateboard; 153. Second skateboard;

[0026] 2. Thermal insulation components; 21. Thermal insulation mesh tube; 22. Fixing ring. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0028] In the description of this utility model, it should be noted that if terms such as "upper", "lower", "inner", "back" or indicating orientation or positional relationship appear, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances.

[0030] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] Please refer to the following: Figures 1 to 3The present invention provides a description of a high-temperature pipeline elbow support leg. This high-temperature pipeline elbow support leg includes a support assembly 1 and a heat insulation assembly 2. The support assembly 1 includes a support leg body and a support foot 14 for supporting the high-temperature pipeline. The support leg body and support foot 14 can move horizontally with the thermal deformation of the high-temperature pipeline. The heat insulation assembly 2 includes a heat insulation mesh cylinder 21. The support leg body includes a first support leg 11 and a second support leg 12 arranged at intervals from top to bottom. From top to bottom, the first support leg 11, the heat insulation mesh cylinder 21, and the second support leg 12 are coaxially connected. The top end of the first support leg 11 is fixedly connected to the high-temperature pipeline, and the bottom end is connected to the top end of the heat insulation mesh cylinder 21. The top end of the second support leg 12 is connected to the bottom end of the heat insulation mesh cylinder 21, and the bottom end of the second support leg 12 is provided with a support foot 14. Thus, through the structural cooperation of the support assembly 1 and the heat insulation assembly 2, this embodiment enables the support leg body to slide synchronously with the thermal deformation of the pipeline under high-temperature conditions. The axial series design of the thermal insulation mesh cylinder 21 effectively blocks the path of heat transfer along the longitudinal direction of the legs, while the air convection channels formed by the mesh structure enhance the heat dissipation capacity. The segmented design of the first leg 11 and the second leg 12 not only ensures the axial load-bearing strength of the support structure, but also releases thermal stress through the thermal insulation mesh cylinder 21 with flexible connection in the middle, solving the technical problem of limited pipe deformation or leg breakage caused by thermal expansion of traditional rigid legs.

[0032] In one feasible embodiment, the support assembly 1 further includes a sliding mechanism 15 disposed below the support leg 14. The sliding mechanism 15 includes a lower base plate 151, a first sliding plate 152, and a second sliding plate 153 arranged sequentially from bottom to top. The lower surface of the first sliding plate 152 is fixedly connected to the upper surface of the lower base plate 151, the upper surface of the first sliding plate 152 is slidably adapted to the lower surface of the second sliding plate 153, and the upper surface of the second sliding plate 153 is fixedly connected to the lower end face of the support leg 14. Through the cooperation of the three-layer superimposed sliding mechanism 15, low-friction sliding of the support leg 14 during thermal displacement is achieved. The fixed connection between the first sliding plate 152 and the base plate provides a stable base, and the rigid connection between the second sliding plate 153 and the support leg 14 ensures effective transmission of driving force, solving the technical problem of traditional sliding supports causing obstruction of pipeline thermal displacement or abnormal wear due to excessively high friction coefficients.

[0033] In one feasible embodiment, the heat-insulating mesh cylinder 21 includes a first mesh cylinder and a second mesh cylinder coaxially sleeved around the outer periphery of the first mesh cylinder. Heat-insulating material is filled inside the second mesh cylinder and between the first and second mesh cylinders. This double-layered mesh cylinder nesting structure achieves the synergistic effect of a multi-level heat insulation barrier. The first mesh cylinder serves as the core load-bearing frame, while the second mesh cylinder forms the outer protective layer. The heat-insulating material (such as ceramic fiber or aerogel) between the two layers further inhibits heat conduction by locking in air through pores, thus solving the technical defect of single-layer heat insulation structures that are prone to a sharp drop in heat insulation performance due to material aging. Simultaneously, the double-mesh cylinder structure improves the overall compressive strength.

[0034] In one feasible embodiment, the outrigger body also includes a support tube 13 with a cylindrical shaft disposed around the outer periphery of the heat insulation mesh cylinder 21. The top and bottom ends of the support tube 13 are respectively connected to the first outrigger 11 and the second outrigger 12, and the tube wall of the support tube 13 is provided with heat dissipation holes. Through the coordinated design of the support tube 13 and the heat dissipation holes, the dual purpose of structural reinforcement and active heat dissipation can be achieved. The support tube 13, as an external reinforcing frame, effectively distributes the radial load of the heat insulation mesh cylinder 21, and the honeycomb ventilation structure formed by the heat dissipation holes in the tube wall accelerates the exhaust of internal hot air, solving the technical problem of high-temperature creep of metal materials caused by heat accumulation in traditional closed outriggers.

[0035] In one feasible embodiment, the sliding mechanism 15 further includes a dustproof bag, which covers the outer periphery of the first sliding plate 152 and the second sliding plate 153. The fully enclosed design of the dustproof bag enables a sealed protective function for the sliding pair. The flexible material of the bag (such as high-temperature resistant aramid fiber) allows the sliding plates to move freely while preventing external dust from entering the sliding interface, thus solving the key problem of dust intrusion causing the sliding mechanism 15 to jam and fail in industrial settings.

[0036] In one feasible embodiment, the thermal insulation component 2 further includes fixing rings 22, with at least two fixing rings 22 respectively located at the top and bottom ends of the thermal insulation mesh cylinder 21. The fixing rings 22 are elastic fixing rings 22, and they are interference-fitted with the inner wall of the support pipe 13. This interference-fit design of the elastic fixing rings 22 enables dynamic fixing of the thermal insulation mesh cylinder 21. The elastic rings compensate for dimensional changes through their own deformation during thermal expansion and contraction, ensuring the stability of the mesh cylinder installation while avoiding stress concentration caused by rigid fixing. This solves the technical problem of the thermal insulation component 2 easily loosening under high-temperature cycling conditions.

[0037] In one feasible embodiment, a graphite block is embedded in the upper surface of the first sliding plate 152. Through the interface modification design of the graphite block, a self-lubricating function of the sliding interface can be achieved. The lubricating properties of graphite material at high temperatures significantly reduce the coefficient of friction between the sliding plates (down to below 0.1), while its high-temperature resistance (>450℃) avoids the carbonization failure problem of traditional lubricating oils, solving the technical bottleneck of difficult lubrication and maintenance of high-temperature sliding pairs.

[0038] In summary, the high-temperature pipeline elbow support leg provided by this utility model, through the synergistic action of the support component 1 (segmented support leg + sliding mechanism 15) and the heat insulation component 2 (double-layer mesh cylinder + filling material), allows horizontal sliding to release thermal stress while supporting the pipeline 13. The heat insulation mesh cylinder 21 blocks longitudinal heat transfer and utilizes air convection for heat dissipation. The sliding mechanism 15 achieves stable displacement through the low-friction interface of graphite inserts and the protection of dustproof bags. The elastic fixing ring 22 and the support pipe 13 enhance structural stability, ultimately forming a support system with heat compensation, heat insulation enhancement and self-lubrication functions. This system controls the temperature of the support leg 14 within a safe range and reduces costs by more than 40%, solving the technical problems of limited thermal expansion, easily damaged support structure and high maintenance costs in high-temperature pipelines.

[0039] Based on the same inventive concept, this utility model also proposes a high-temperature pipeline, which includes the high-temperature pipeline elbow support mentioned above.

[0040] Compared with the prior art, the high-temperature pipeline of this utility model has all the advantages of the elbow support for high-temperature pipelines mentioned above, which will not be elaborated here.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A type of elbow support leg for high-temperature pipelines, characterized in that, include: The support assembly includes a leg body and a support foot for supporting a high-temperature pipe, the leg body and the support foot being able to move horizontally in response to the thermal deformation of the high-temperature pipe; The heat insulation component includes a heat insulation mesh cylinder. The support leg body includes a first support leg and a second support leg arranged at intervals from top to bottom. From top to bottom, the first support leg, the heat insulation mesh cylinder, and the second support leg are coaxially connected in sequence. The top end of the first support leg is fixedly connected to a high-temperature pipe, and the bottom end is connected to the top end of the heat insulation mesh cylinder. The top end of the second support leg is connected to the bottom end of the heat insulation mesh cylinder, and the bottom end of the second support leg is provided with the support foot.

2. The elbow support leg for high-temperature pipelines as described in claim 1, characterized in that, The support assembly also includes a sliding mechanism located below the support foot. The sliding mechanism includes a lower base plate, a first sliding plate, and a second sliding plate arranged in a stacked manner from bottom to top. The lower surface of the first sliding plate is fixedly connected to the upper surface of the lower base plate. The upper surface of the first sliding plate is slidably adapted to the lower surface of the second sliding plate. The upper surface of the second sliding plate is fixedly connected to the lower end surface of the support foot.

3. The elbow support leg for high-temperature pipelines as described in claim 2, characterized in that, The heat insulation mesh cylinder includes a first mesh cylinder and a second mesh cylinder coaxially sleeved on the outer periphery of the first mesh cylinder. The second mesh cylinder and the space between the first mesh cylinder and the second mesh cylinder are filled with heat insulation material.

4. The elbow support leg for high-temperature pipelines as described in claim 1, characterized in that, The support leg body also includes a support tube with a cylindrical shaft disposed on the outer periphery of the heat insulation mesh cylinder. The top and bottom ends of the support tube are respectively connected to the first support leg and the second support leg, and the support tube has heat dissipation holes on its wall.

5. The elbow support leg for high-temperature pipelines as described in claim 2, characterized in that, The sliding mechanism also includes a dustproof bag, which covers the outer periphery of the first sliding plate and the second sliding plate.

6. The elbow support leg for high-temperature pipelines as described in claim 4, characterized in that, The heat insulation component also includes fixing rings, and the number of fixing rings is at least two. The two fixing rings are respectively located at the top and bottom ends of the heat insulation mesh cylinder. The fixing rings are elastic fixing rings, and the fixing rings are interference-fitted with the inner wall of the support tube.

7. The elbow support leg for high-temperature pipelines as described in claim 2, characterized in that, The upper surface of the first slide is embedded with graphite blocks.

8. A high-temperature pipeline, characterized in that, Including elbow supports for high-temperature pipelines as described in any one of claims 1 to 7.

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