Anti-corrosion and anti-abrasion layer structure of natural gas long-distance pipeline
By installing a ceramic layer on the inner wall and coating the outer wall with anti-corrosion paint on the natural gas long-distance pipeline, and by installing buffer and protection components at bending locations, the corrosion problem caused by stress concentration and fluid erosion of the pipeline is solved, achieving all-round protection of the pipeline and extending its service life.
Patent Information
- Application Number
- CN202520464059.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-03-17
AI Technical Summary
Due to their unique structure, the bends in long-distance natural gas pipelines are prone to stress concentration and fluid erosion during operation, leading to cracking and wear of the anti-corrosion coating and increasing the risk of corrosion.
A ceramic layer is installed on the inner wall of the pipeline to improve wear resistance and corrosion resistance, and an anti-corrosion paint is applied to the outer wall. At the same time, buffer components and protective components are installed at the bends, including guide plates, buffer springs and protective shells. The guide plates withstand the fluid erosion, the buffer springs absorb the impact, and the protective shells reduce external collisions and extend the pipeline's life.
It effectively protects the inner and outer walls of the pipeline, prevents corrosion and wear, extends service life, and enhances the pipeline's corrosion resistance and erosion resistance.
Smart Images
Figure CN223754984U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to natural gas long -distance pipeline technical field, concretely is a kind of anticorrosive wear layer structure of natural gas long -distance pipeline. BACKGROUND
[0002] Natural gas long -distance pipeline refers to the long-distance natural gas conveying pipeline crossing different cities or regions, its main function is to transport natural gas from production place to consumption market or storage facility, usually crossing multiple cities, provinces or even countries, length can reach thousands of kilometers, so diameter is larger, and pressure is higher.
[0003] The bending position of natural gas long -distance pipeline is easily affected by stress concentration, fluid scouring and other factors during pipeline operation due to its special structure, which leads to cracking and wear of anticorrosive coating, thereby increasing the risk of corrosion.
[0004] Therefore, the skilled person in the art proposes an anticorrosive wear layer structure of natural gas long -distance pipeline to solve the problem raised in the background. UTILITY MODEL CONTENT
[0005] To solve the above technical problems, the utility model provides an anticorrosive wear layer structure of natural gas long -distance pipeline to solve the problem of cracking and wear of anticorrosive coating of the bending position of natural gas long -distance pipeline in the prior art due to its special structure during pipeline operation.
[0006] An anticorrosive wear layer structure of natural gas long -distance pipeline includes a conveying pipeline, a buffer assembly is arranged in the conveying pipeline, and a protective assembly is connected to the conveying pipeline.
[0007] The conveying pipeline is a metal pipeline, the inner wall of the conveying pipeline is provided with a ceramic layer, and the outer wall of the conveying pipeline is coated with anticorrosive paint.
[0008] Preferably, the buffer assembly includes a guide groove fixedly connected to the inner wall of the conveying pipeline, the guide groove is slidably connected with a first sliding block and a second sliding block, the second sliding block is fixedly connected with a buffer spring, one end of the buffer spring away from the second sliding block is fixedly connected with the guide groove, the first sliding block is fixedly connected with a first support rod, the second sliding block is fixedly connected with a second support rod, and the first support rod and the second support rod are fixedly connected with a guide plate.
[0009] Preferably, the guide groove is fixedly connected with a guide rod, the buffer spring is sleeved on the circumferential side of the guide rod, the first sliding block and the second sliding block are respectively provided with through holes, and the guide rod is slidably connected with the first sliding block and the second sliding block through the through holes.
[0010] Preferably, the guide plate is an arc-shaped plate.
[0011] Preferably, the protection assembly comprises a protective shell, an interior of the protective shell is filled with polyurethane foam, the curved position of the conveying pipeline is located in the protective shell, and the part of the conveying pipeline located in the protective shell is sleeved with a rubber sleeve.
[0012] Preferably, the protective shell is composed of an upper shell and a lower shell which are hingedly connected, the upper shell is rotationally connected with a buckle plate, the buckle plate is provided with a through slot, the lower shell is fixedly connected with a plug rod, the plug rod is rotationally connected with a baffle plate, the width of the baffle plate is less than the width of the through slot, and the length of the baffle plate is greater than the width of the through slot.
[0013] Compared with the prior art, the natural gas long-distance pipeline has the following beneficial effects:
[0014] 1、The ceramic layer is arranged on the inner wall of the conveying pipeline, the ceramic layer has excellent wear resistance and corrosion resistance, the conveying pipeline inner wall can be effectively protected, the outer wall of the conveying pipeline is coated with anticorrosive paint, the corrosion resistance of the outer wall of the conveying pipeline is enhanced, and the outer wall of the conveying pipeline is prevented from being eroded by corrosive media such as moisture and oxygen in the external environment.
[0015] 2、The guide plate meets the scouring of natural gas, the curved position of the conveying pipeline is prevented from being scoured by natural gas, when the guide plate is scoured by natural gas, the guide plate slides along the guide groove and absorbs the scouring capacity through the buffer spring, the service life of the guide plate is prolonged, and the inner wall of the conveying pipeline can be further protected.
[0016] 3、The polyurethane foam and the rubber sleeve are arranged outside the conveying pipeline to provide protection for the conveying pipeline, the outer wall of the conveying pipeline is prevented from being damaged due to accidental collision, and the service life of the conveying pipeline is prolonged. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a whole schematic view of the anticorrosion and wear-resistant layer structure of the natural gas long-distance pipeline.
[0018] Figure 2 It is a sectional view of the anticorrosion and wear-resistant layer structure of the natural gas long-distance pipeline.
[0019] Figure 3 It is a sectional view of the buffer assembly of the anticorrosion and wear-resistant layer structure of the natural gas long-distance pipeline.
[0020] Figure 4 It is Figure 1 the enlarged schematic view of A in the figure.
[0021] In the figure:
[0022] 1, conveying pipeline; 2, buffer assembly; 201, guide groove; 202, first slider; 203, second slider; 204, buffer spring; 205, first support rod; 206, second support rod; 207, guide plate; 208, guide rod; 3, protection assembly; 301, protective shell; 302, polyurethane foam; 303, rubber sleeve; 304, buckle plate; 305, through slot; 306, insertion rod; 307, baffle. DETAILED DESCRIPTION
[0023] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.
[0024] Example 1
[0025] As shown in the accompanying Figure 1 to the accompanying Figure 2 , the present embodiment provides a kind of anticorrosive wear-resistant layer structure of long-distance gas pipeline, including conveying pipeline 1, conveying pipeline 1 is used to transport natural gas, buffer assembly 2 is provided in conveying pipeline 1, wherein buffer assembly 2 is used to replace the inner wall of conveying pipeline 1 to bear the scouring of natural gas, conveying pipeline 1 is connected with protection assembly 3, wherein protection assembly 3 provides protection to the outer wall of the bending position of conveying pipeline 1;
[0026] Conveying pipeline 1 is metal pipeline, the inner wall of conveying pipeline 1 is provided with ceramic layer, ceramic layer has excellent wear resistance and corrosion resistance, can effectively protect the inner wall of conveying pipeline 1, the outer wall of conveying pipeline 1 is coated with anticorrosive paint, anticorrosive paint can enhance the corrosion resistance of the outer wall of conveying pipeline 1, can effectively protect the outer wall of conveying pipeline 1.
[0027] From the above, the outer wall of conveying pipeline 1 is protected by anticorrosive paint, the inner wall of conveying pipeline 1 is protected by ceramic layer, the service life of conveying pipeline 1 is prolonged, the outer wall of conveying pipeline 1 is protected by protection assembly 3, the inner wall of conveying pipeline 1 is replaced by buffer assembly 2 to bear the scouring of natural gas, and the bending position of conveying pipeline 1 is protected.
[0028] Example 2
[0029] As shown in the accompanying Figure 1 to the accompanying Figure 4As shown, the embodiment is basically the same as the previous embodiment, the difference is that the buffer assembly 2 comprises a guide groove 201 fixedly connected with the inner wall of the conveying pipeline 1, the guide groove 201 is arranged along the length direction of the conveying pipeline 1, the first sliding block 202 and the second sliding block 203 are slidably connected with the guide groove 201, the first sliding block 202 and the second sliding block 203 slide along the length direction of the guide groove 201, the damping coefficient between the first sliding block 202, the second sliding block 203 and the guide groove 201 is large, and the reciprocating motion caused by the deformation of the buffer spring 204 is inhibited, the second sliding block 203 is fixedly connected with the buffer spring 204, the shape of the buffer spring 204 is changed during sliding, so that the buffer spring 204 deforms and absorbs energy, one end of the buffer spring 204 away from the second sliding block 203 is fixedly connected with the guide groove 201, the first sliding block 202 is fixedly connected with the first supporting rod 205, the second sliding block 203 is fixedly connected with the second supporting rod 206, and the first supporting rod 205 and the second supporting rod 206 are fixedly connected with the guide plate 207, wherein the guide plate 207 can replace the inner wall of the conveying pipeline 1 to bear the scouring of natural gas.
[0030] Specifically, the guide groove 201 is fixedly connected with the guide rod 208, the buffer spring 204 is sleeved on the side of the guide rod 208, the guide rod 208 can avoid the bending of the buffer spring 204, the first sliding block 202 and the second sliding block 203 are respectively provided with through holes, the guide rod 208 is slidably connected with the first sliding block 202 and the second sliding block 203 through the through holes, and the through holes can avoid the movement interference between the guide rod 208 and the first sliding block 202 and the second sliding block 203.
[0031] Further, the guide plate 207 is an arc plate, the curvature of the arc plate matches the bending degree of the conveying pipeline 1, and can assist the natural gas to change direction at the curved position of the conveying pipeline 1.
[0032] Further, the protection assembly 3 comprises a protective shell 301, the inside of the protective shell 301 is filled with polyurethane foam 302, the curved part of the conveying pipeline 1 is located in the protective shell 301, and the part of the conveying pipeline 1 located in the protective shell 301 is sleeved with a rubber sleeve 303. The rubber sleeve 303 and the polyurethane foam 302 have the functions of shock absorption and energy absorption, and can reduce the impact of external factors on the conveying pipeline 1.
[0033] Further, the protective shell 301 is composed of an upper shell and a lower shell, the upper shell is rotationally connected with a buckle plate 304, the buckle plate 304 is provided with a through slot 305, the lower shell is fixedly connected with a plug rod 306, the plug rod 306 is rotationally connected with a baffle 307, the width of the baffle 307 is smaller than the width of the through slot 305, and the length of the baffle 307 is greater than the width of the through slot 305, by rotating the buckle plate 304, the plug rod 306 is located in the through slot 305, then the baffle 307 is rotated, by adjusting the baffle 307 to be in a vertical state or a horizontal state, whether the upper shell and the lower shell are opened can be controlled.
[0034] As can be seen from the above, by absorbing the impact through the rubber sleeve 303 and the polyurethane foam 302, the impact of external factors on the conveying pipeline 1 can be reduced, the baffle 307 is rotated to the vertical state, the buckle plate 304 can be rotated, and then the protective shell 301 can be opened, so that the state of the bending position of the conveying pipeline 1 is convenient to check, the baffle 307 is rotated to the horizontal state, at this time, the baffle 307 has a limiting effect on the buckle plate 304, so that the protective shell 301 is prevented from being opened; when conveying natural gas, the scouring action of the natural gas is on the guide plate 207, at this time, the guide plate 207 is stressed, the guide plate 207 moves the first sliding block 202 and the second sliding block 203 along the length direction of the guide slot 201 through the first supporting rod 205 and the second supporting rod 206, and the second sliding block 203 deforms the buffer spring 204 to absorb energy, the guide plate 207 replaces the inner wall of the bending position of the conveying pipeline 1 to bear the scouring of the natural gas, and assists the natural gas in changing direction at the bending position of the conveying pipeline 1, so that the service life of the conveying pipeline 1 is prolonged.
[0035] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt the conventional types in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, and details are not described herein.
[0036] In the description of the utility model, the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. The meaning of "multiple" is two or more, unless otherwise specifically limited.
[0037] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication or two element mutual action relation.
[0038] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature, can be first and second feature direct contact, or first and second feature indirectly contact through intermediate medium. Moreover, first feature is "on", "above" and "on" second feature, can be first feature is directly above or obliquely above second feature, or just indicate that first feature horizontal height is higher than second feature. First feature is "under", "below" and "under" second feature, can be first feature is directly below or obliquely below second feature, or just indicate that first feature horizontal height is less than second feature.
[0039] In the description of the specification, the description of the terms "an embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without conflict.
[0040] The utility model discloses the embodiment figure, only relate to the structure of the disclosure embodiment, other structures can refer to the usual design, under the condition of not conflicting, the same embodiment and different embodiments of the utility model can be combined mutually.
[0041] Although the utility model has been explained in detail with reference to the foregoing embodiments, for those skilled in the art, still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.
Claims
1. A corrosion and abrasion resistant layer structure for a long distance natural gas pipeline, characterized by: The utility model provides a kind of pipeline protection device, including conveying pipeline (1), buffering assembly (2) is provided in the conveying pipeline (1), the conveying pipeline (1) is connected with protective assembly (3); The conveying pipeline (1) is a metal pipeline, the inner wall of the conveying pipeline (1) is provided with a ceramic layer, and the outer wall of the conveying pipeline (1) is coated with a corrosion-resistant paint.
2. The corrosion and abrasion resistant layer structure for long distance natural gas pipelines according to claim 1, characterized in that: The buffering assembly (2) includes a guide groove (201) fixedly connected to the inner wall of the conveying pipeline (1), a first sliding block (202) and a second sliding block (203) slidingly connected to the guide groove (201), a buffer spring (204) fixedly connected to the second sliding block (203), one end of the buffer spring (204) away from the second sliding block (203) fixedly connected to the guide groove (201), the first sliding block (202) fixedly connected to a first support rod (205), the second sliding block (203) fixedly connected to a second support rod (206), and the first support rod (205) and the second support rod (206) fixedly connected to a guide plate (207).
3. The corrosion and abrasion resistant layer structure for long distance natural gas pipelines according to claim 2, characterized in that: The guide groove (201) is fixedly connected to a guide rod (208), the buffer spring (204) is sleeved on the side of the guide rod (208), the first sliding block (202) and the second sliding block (203) are respectively provided with through holes, and the guide rod (208) is slidingly connected with the first sliding block (202) and the second sliding block (203) through the through holes.
4. The corrosion and abrasion resistant layer structure for long distance natural gas pipelines according to claim 3, characterized in that: The guide plate (207) is an arc-shaped plate.
5. A corrosion and abrasion resistant layer structure for long distance natural gas pipelines according to claim 4, characterized in that: The protective assembly (3) includes a protective shell (301), the inside of the protective shell (301) is filled with polyurethane foam (302), the curved part of the conveying pipeline (1) is located in the protective shell (301), and the part of the conveying pipeline (1) located in the protective shell (301) is sleeved with a rubber sleeve (303).
6. A corrosion and abrasion resistant layer structure for long distance natural gas pipelines according to claim 5, characterized in that: The protective shell (301) is hingedly composed of an upper shell and a lower shell, the upper shell is rotatably connected with a clamping plate (304), the clamping plate (304) is provided with a through slot (305), the lower shell is fixedly connected with a plug rod (306), the plug rod (306) is rotatably connected with a baffle (307), the width of the baffle (307) is less than the width of the through slot (305), and the length of the baffle (307) is greater than the width of the through slot (305).