Natural gas pipeline connector anti-corrosion structure, butt joint device and natural gas pipeline

Abstract

The utility model relates to a natural gas pipeline joint anticorrosion structure, a butt joint device and a natural gas pipeline, and the natural gas pipeline joint anticorrosion structure comprises an outer protection belt with two ends respectively wrapping two butt-jointed pipelines and two groups of installation assemblies respectively sleeving the two pipelines, the outer protective belt is located between the two sets of mounting assemblies, at least two sets of edge pressing components are evenly distributed on the two sets of mounting assemblies in the circumferential direction, and each edge pressing component comprises a sliding plate with one end connected to the corresponding mounting assembly, a threaded rod connected to the other end of the sliding plate in a threaded mode and a clamping plate rotationally connected to the threaded rod; and the clamping plates surround and clamp the end part of the outer protective belt. The natural gas pipeline structure can solve the technical problems that an outer protective belt of an existing natural gas pipeline structure is prone to upwarp, impurities enter the natural gas pipeline structure, and then the anti-corrosion effect of a pipeline connector is affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas transportation equipment technical field especially is related to a natural gas pipeline interface anticorrosive structure, butt joint device and natural gas pipeline. BACKGROUND

[0002] When using natural gas to transport, usually with the help of gas pipeline to guide, natural gas pipeline interface plays a vital role in the pipeline system, must pass through strict design, construction and detection to ensure the safe operation of the pipeline system and effective transmission of natural gas, considering the natural gas pipeline interface long-term exposure, usually use anticorrosive device to carry out anticorrosive treatment to prolong the service life and ensure the stability of the system.

[0003] The existing pipeline interface anticorrosive device usually is through winding a layer of anticorrosive outer protective tape at the interface, then using the heating fixed mode to realize, however, long-term exposure of anticorrosive outer protective tape can easily lead to the edge lifting condition, easily make impurities enter from the lifting part, thereby affecting the anticorrosive effect of the pipeline interface. UTILITY MODEL CONTENT

[0004] The utility model discloses to the technical problem that the existing natural gas pipeline structure outer protective tape is easy to lift, causes impurity to enter, and then influences the anticorrosive effect of the pipeline interface, provides a natural gas pipeline interface anticorrosive structure, butt joint device and natural gas pipeline.

[0005] The utility model solves the technical scheme of the above-mentioned technical problem as follows:

[0006] Firstly, the utility model provides a natural gas pipeline interface anticorrosive structure, including two ends for covering two butt joint pipelines respectively outer protective tape and two groups of installation components for setting in two pipelines respectively, the outer protective tape is located between two groups of installation components, and two groups of installation components are evenly distributed with at least two groups of edge pressing components in the circumference, each edge pressing component includes a slide plate connected to the installation component, a screw rod screw connected to the other end of the slide plate and a clamping plate rotationally connected to the screw rod, and each clamping plate is surrounded and clamped to the end of the outer protective tape.

[0007] The utility model has the advantages that when the outer protective tape covers the butt joint interface of two pipelines, first, two installation components are set in two pipelines respectively, after covering the outer protective tape, a plurality of clamping plates are clamped to the end of the outer protective tape by rotating each screw rod, so as to improve the sealing property between the outer protective tape and the outer wall of the pipeline, and improve the technical problem that the end of the outer protective tape is easy to lift, impurities enter, and then influence the anticorrosive effect of the pipeline interface, improve the protection effect and anticorrosive life of the butt joint interface of two pipelines.

[0008] On the basis of the above technical scheme, the utility model further can make improvement as follows.

[0009] Further, each of the clamping plates is fixed with a guide rod, one end of each of the guide rods is fixedly connected to the corresponding clamping plate, and the other end is slidably connected to the corresponding sliding plate.

[0010] The beneficial effect of the above further scheme is that the clamping plate drives the guide rod to slide during movement, the guide rod forms a limiting action, and the situation that the clamping plate rotates together with the screw rod is avoided, thereby facilitating the clamping plate to clamp and fix the edge of the outer protective belt.

[0011] Further, one end of the sliding plate is slidably connected to the mounting assembly.

[0012] The beneficial effect of the above further scheme is that the position of the corresponding clamping plate is indirectly adjusted in the form of sliding the sliding plate, and it is ensured that the clamping plate can clamp and fix the end portion of the outer protective belt.

[0013] Further, the two ends of the outer protective belt respectively abut against two groups of the mounting assemblies.

[0014] The beneficial effect of the above further scheme is that during winding to form the outer protective belt, the two groups of mounting assemblies respectively form a limit on the two ends of the outer protective belt, the outer protective belt is prevented from being deviated, and the possibility of the outer protective belt being warped during use is reduced.

[0015] Further, the natural gas pipeline interface anti-corrosion structure further comprises two sealing rings for being sleeved on the two pipelines, and the two ends of the outer protective belt are respectively wrapped on the outer sides of the two sealing rings.

[0016] The beneficial effect of the above further scheme is that under the clamping action of the clamping plate, the end portion of the outer protective belt extrudes the sealing ring, the sealing ring forms a buffering action relative to the outer protective belt directly abutting against the outer wall of the pipeline, the sealing effect between the outer protective belt and the pipeline is better due to the extrusion of the sealing ring, the warping of the end portion of the outer protective belt is prevented, and impurities are prevented from entering.

[0017] Further, one end of each of the two sealing rings respectively abuts against two of the mounting assemblies, and the other end of each of the two sealing rings is abutted with a plurality of limiting blocks, and each of the limiting blocks is used for being fixed to the pipeline.

[0018] The beneficial effect of the above further scheme is that the limiting action of the sealing ring between a group of limiting blocks and mounting assemblies is formed, and the displacement of the sealing ring during winding to form the outer protective belt is prevented.

[0019] Further, one end of each of the two sealing rings is inserted with at least one limiting rod, one end of each of the limiting rods is inserted into the corresponding sealing ring, and the other end is fixedly connected to the corresponding mounting assembly.

[0020] The beneficial effect of the further scheme is that the limiting rods inserted into the sealing rings form a limiting effect on the sealing rings, which prevents the sealing rings from rotating relative to the pipelines during the winding of the outer protective belt.

[0021] In the second aspect, the utility model provides a natural gas pipeline butt joint device, including the natural gas pipeline interface anticorrosion structure, still include base and at least two groups of support assembly that are all slidingly connected to base, each support assembly is used for supporting two pipelines respectively, and any pipeline is supported by at least one group of support assembly.

[0022] The beneficial effect of the further scheme is that the multiple support assemblies are used to support the two pipelines to ensure the stability and balance of the pipelines during butt joint, thereby ensuring the stability of the outer protective belt during winding and preventing deviation, so that the anticorrosion effect is long-term effective.

[0023] Further, the support assembly includes a support rod slidingly connected to the base, a frame fixedly connected to the upper end of the support rod, a lead screw threadedly connected to the frame, and an arc-shaped plate rotationally connected to the end of the lead screw, and the arc-shaped plate is used to abut against the pipeline.

[0024] The beneficial effect of the further scheme is that the arc-shaped plate is moved by rotating the lead screw, so that the pipeline can be fixed, thereby facilitating the butt joint work of the pipeline and avoiding the shaking of the pipeline during butt joint to affect the accuracy of butt joint.

[0025] In the third aspect, the utility model provides a natural gas pipeline, which includes multiple butt joint pipelines and the natural gas pipeline butt joint device. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a perspective view of the natural gas pipeline butt joint device of the utility model;

[0027] Figure 2 It is a first partial structure view of the natural gas pipeline butt joint device of the utility model, in which the outer protective belt is hidden;

[0028] Figure 3 It is a partial structure view of the natural gas pipeline interface anticorrosion structure of the utility model;

[0029] Figure 4 It is Figure 3 another view structure view;

[0030] Figure 5 It isFigure 4 Enlarged view of part A;

[0031] Figure 6 It is the second local structure diagram of natural gas pipeline butt joint device of the utility model, mainly shows base and support assembly;

[0032] Figure 7 It is Figure 6 Enlarged view of part B.

[0033] In the drawings, the component list represented by each sign is as follows:

[0034] 1, pipeline;

[0035] 2, outer protective band;

[0036] 3, installation assembly;31, circular ring;32, fixed plate;33, fixed block;

[0037] 4, edge pressing component;41, sliding plate;42, screw;43, clamping plate;44, guide rod;

[0038] 5, sealing ring;51, limiting block;52, limiting rod;

[0039] 6, base;61, bottom plate;611, clamping groove;62, U-shaped seat;

[0040] 7, support assembly;71, support rod;72, frame;73, screw;74, arc plate;75, fixed rod;76, non-slip pad. DETAILED DESCRIPTION

[0041] The principles and characteristics of the utility model are described below in combination with the drawings, and the examples are only used to explain the utility model and not used to limit the scope of the utility model.

[0042] In the first aspect, the utility model provides a kind of natural gas pipeline interface corrosion prevention structure, see the following elaboration specifically.

[0043] Example 1

[0044] As Figures 1 to 5 A kind of natural gas pipeline interface corrosion prevention structure, including two ends for respectively covering in the outer protective band 2 of two butt joint pipelines 1 and two groups of installation assembly 3 for being set in two pipelines 1, outer protective band 2 is located between two groups of installation assembly 3, and two groups of installation assembly 3 are all circumferentially distributed with at least two groups of edge pressing component 4, each edge pressing component 4 includes the sliding plate 41 of one end being connected to installation assembly 3, the screw 42 of being threadedly connected to the other end of sliding plate 41 and the clamping plate 43 being rotationally connected to screw 42, each clamping plate 43 is surrounded and clamped in the end of outer protective band 2.

[0045] The beneficial effect of the embodiment is that when the outer protective tape 2 is wrapped around the joint of the two pipes 1, the two sets of mounting assemblies 3 are respectively sleeved on the two pipes 1, after the outer protective tape 2 is wrapped, the plurality of clamping plates 43 are clamped at the end of the outer protective tape 2 by rotating the screw rod 42, so as to improve the sealing between the outer protective tape 2 and the outer wall of the pipe 1, and improve the technical problem that the end of the outer protective tape 2 is easy to be raised, impurities enter, and then affect the corrosion prevention effect of the pipe joint, and improve the protection effect and corrosion prevention life of the joint of the two pipes 1.

[0046] As a specific scheme of the above embodiment, the clamping plate 43 is an arc plate coaxial with the pipe 1, so as to ensure that the clamping plate 43 and the outer protective tape 2 form a complete contact curve, and ensure the extrusion effect on the end of the outer protective tape 2.

[0047] On the basis of the above embodiment, the sliding plate 41 is in the shape of "T", and the "T" end is slidingly connected to the mounting assembly 3, so as to prevent the sliding plate 41 from being separated.

[0048] On the basis of the above embodiment, the mounting assembly 3 includes a plurality of fixed plates 32 and a circular ring 31, the circular ring 31 is adapted and sleeved on the pipe 1, the number of the plurality of fixed plates 32 is equal to the number of the edge pressing components 4, one end of the plurality of fixed plates 32 is fixedly connected to the circular ring 31 and fixes the opposite end of the two circular rings 31, and the other end is provided with a through hole for inserting and sliding the sliding plate 41.

[0049] The circular ring 31 coaxial with the pipe 1 is provided as the mounting basis of the edge pressing component 4, so as to ensure that each clamping plate 43 can form the same size force on the outer protective tape 2 under the pressure of the screw rod 42.

[0050] On the basis of the above embodiment, the mounting assembly 3 further includes a plurality of fixed blocks 33 circumferentially distributed on the circular ring 31, and one end of the fixed block 33 is fixedly connected to the end of the two circular rings 31 facing each other and fixed to the outside of the circular ring 31.

[0051] The fixed block 33 extends the diameter of the circular ring 31, so as to ensure that the end of the outer protective tape 2 can abut against the side surface of the fixed block 33 and / or the circular ring 31, and form a limit to the outer protective tape 2. The limit is formed by the extended fixed block 33, not only by the circular ring 31, which can relatively reduce the cost.

[0052] Embodiment 2

[0053] As Figure 4 and Figure 5 On the basis of the above embodiment, each clamping plate 43 is fixed with a guide rod 44, one end of each guide rod 44 is fixedly connected to the corresponding clamping plate 43, and the other end is slidingly connected to the corresponding sliding plate 41.

[0054] The beneficial effect of the preferred solution in the above embodiment is that the clamping plate 43 will drive the guide rod 44 to slide during movement, and the guide rod 44 forms a limiting effect to avoid the situation that the clamping plate 43 rotates together with the screw rod 42, thereby facilitating the clamping plate 43 to clamp and fix the edge of the outer protective belt 2.

[0055] The guide rod 44 can be a round rod, a polygonal rod, etc.

[0056] Embodiment 3

[0057] As Figure 4 and Figure 5 On the basis of embodiments 1 and 2, one end of the sliding plate 41 is slidingly connected to the mounting assembly 3, specifically to the fixed plate 32.

[0058] The beneficial effect of the preferred solution in the above embodiment is that the position of the corresponding clamping plate 43 is indirectly adjusted by sliding the sliding plate 41, so as to ensure that the clamping plate 43 can clamp and fix the end of the outer protective belt 2.

[0059] The sliding direction of the sliding plate 41 is perpendicular to the screwing direction of the screw rod 42. The sliding plate 41 is in the shape of “T”, and the “T”-shaped end is slidingly connected to the mounting assembly 3, so as to prevent the sliding plate 41 from being separated.

[0060] Embodiment 4

[0061] As Figures 1 to 5 On the basis of embodiments 1-3, the two ends of the outer protective belt 2 respectively abut against two groups of mounting assemblies 3.

[0062] The beneficial effect of the preferred solution in the above embodiment is that during the winding process of the outer protective belt 2, the two groups of mounting assemblies 3 respectively limit the two ends of the outer protective belt 2, so as to avoid the deviation of the outer protective belt 2, thereby reducing the possibility of the outer protective belt 2 being warped during use.

[0063] On the basis of the above embodiments, the end of the outer protective belt 2 abuts against the side surface of the fixed block 33 and / or the circular ring 31. In the figure, only the end of the outer protective belt 2 is shown as abutting against the side surface of the fixed block 33.

[0064] Embodiment 5

[0065] As Figures 2 to 5 On the basis of embodiments 1-4, the natural gas pipeline interface anti-corrosion structure further comprises two sealing rings 5 for being sleeved on the two pipelines 1, and the two ends of the outer protective belt 2 are respectively wrapped on the outer sides of the two sealing rings 5.

[0066] The beneficial effect of the preferred solution in the above embodiment is that the end of the outer protective band 2 is extruded against the sealing ring 5 under the clamping action of the clamping plate 43, and the sealing ring 5 forms a buffer effect relative to the direct abutment of the outer protective band 2 against the outer wall of the pipeline 1, the sealing ring 5 is extruded to make the sealing effect between the outer protective band 2 and the pipeline 1 better, prevent the end of the outer protective band 2 from being raised, and avoid impurities from entering.

[0067] As a specific solution of the above embodiment, the sealing ring 5 can be made of rubber and has a certain pressure deformation performance. When the sealing ring 5 is in a natural state, the inner diameter thereof is smaller than the outer diameter of the pipeline 1, so as to form a tightening effect on the pipeline 1 and improve the sealing performance.

[0068] Embodiment 6

[0069] As Figures 2 to 5 On the basis of embodiments 1-5, one end of each of the two sealing rings 5 abuts against the two installation assemblies 3, and the other end of each of the two sealing rings 5 abuts against a plurality of limiting blocks 51, and each limiting block 51 is used for being fixed to the pipeline 1.

[0070] The beneficial effect of the preferred solution in the above embodiment is that the limiting blocks 51 and the installation assemblies 3 form a limiting effect on the sealing ring 5, which can prevent the sealing ring 5 from being displaced during the winding of the outer protective band 2.

[0071] As a specific solution of the above embodiment, the sealing ring 5 abuts against the side surface of the annular ring 31.

[0072] The plurality of limiting blocks 51 can be two, three, four, five, etc. The limiting blocks 51 can be installed by welding.

[0073] Embodiment 7

[0074] As Figures 2 to 5 On the basis of embodiments 1-6, at least one limiting rod 52 is inserted into one end of each of the two sealing rings 5, one end of each limiting rod 52 is inserted into the corresponding sealing ring 5, and the other end of each limiting rod 52 is fixedly connected to the corresponding installation assembly 3.

[0075] The beneficial effect of the preferred solution in the above embodiment is that the limiting rod 52 inserted into the sealing ring 5 forms a limiting effect on the sealing ring 5, which can prevent the sealing ring 5 from rotating relative to the pipeline 1 during the winding of the outer protective band 2.

[0076] As one of the specific solutions of the above embodiment, the limiting rod 52 can have a rod body structure with a pointed end, and the limiting rod 52 can be inserted into the sealing ring 5.

[0077] As the second specific solution of the above embodiment, a insertion hole is formed on the sealing ring 5, and one end of the limiting rod 52 is adapted and inserted into the insertion hole.

[0078] In a second aspect, the utility model provides a natural gas pipeline butt joint device, and specifically see the following elaboration.

[0079] Embodiment 8

[0080] As Figure 1 , Figure 2 , Figure 6 And Figure 7 A natural gas pipeline butt joint device, including the anticorrosion structure of natural gas pipeline interface described in embodiment 1-7, still includes the base 6 and at least two groups of support assemblies 7 that are slidingly connected to the base 6, each support assembly 7 is used for supporting two pipelines 1 respectively, and any pipeline 1 is supported by at least one group of support assemblies 7.

[0081] The beneficial effects of the preferred scheme in the above embodiment are that multiple groups of support assemblies 7 are used to support two pipelines 1 to ensure the stability and balance of the pipelines 1 during butt joint, and then ensure the stability of the outer protective belt 2 during winding, so that the anticorrosion effect is long-term effective.

[0082] And before supporting, the support position of the support assembly 7 on the pipeline 1 can be changed by sliding the support assembly 7.

[0083] On the basis of the above embodiment, the base 6 includes a bottom plate 61 and a U-shaped seat 62, and a clamping groove 611 is formed in the bottom plate 61; the opening ends of the two arms of the U-shaped seat 62 are fixedly connected to the bottom plate 61.

[0084] Embodiment 9

[0085] As Figure 6 And Figure 7 On the basis of embodiments 1-8, the support assembly 7 includes a support rod 71 slidingly connected to the lower end of the base 6, a frame 72 fixedly connected to the upper end of the support rod 71 and used for sleeving the side wall of the pipeline 1, a lead screw 73 threadedly connected to the frame 72, and an arc-shaped plate 74 rotationally connected to the end of the lead screw 73, and the arc-shaped plate 74 is used for abutting against the pipeline 1.

[0086] The beneficial effects of the preferred scheme in the above embodiment are that the pipeline 1 can be fixed by rotating the lead screw 73 to drive the arc-shaped plate 74 to move, so as to facilitate the butt joint work of the pipeline 1 and avoid the pipeline 1 from shaking during butt joint to affect the accuracy of butt joint.

[0087] Among them, the frame 72 is a circular ring structure.

[0088] On the basis of the above embodiment, the lower end of the supporting rod 71 is adapted and slidably connected to the clamping groove 611, and a through hole is formed in the supporting rod 71, and the closed end of the U-shaped seat 62 is adapted and slidably connected to the through hole, so that the U-shaped seat 62 limits the supporting rod 71 to maintain the verticality of the supporting rod 71.

[0089] On the basis of the above embodiment, at least one fixed rod 75 is fixed to the outer side of the arc-shaped plate 74, one end of the fixed rod 75 is fixedly connected to the arc-shaped plate 74, and the other end is slidably connected to the frame 72, so that the arc-shaped plate 74 is limited to move only radially towards the pipeline 1 under the joint action of the screw rod 73.

[0090] A non-slip pad 76 is fixed to the inner side of the arc-shaped plate 74, the non-slip pad 76 is made of rubber material, the non-slip pad 76 abuts against the arc surface of the pipeline 1, and the non-slip pad 76 increases the friction between the arc-shaped plate 74 and the pipeline 1, and at the same time, the pipeline 1 is protected, so that the pipeline 1 is not damaged due to excessive clamping force of the arc-shaped plate 74.

[0091] The use mode of the natural gas pipeline butt joint device is as follows according to the specific embodiment of the utility model.

[0092] First, the two pipelines 1 are supported by the supporting assembly 7, and a spacing is formed between the two pipelines 1;

[0093] Then, the two groups of installation assemblies 3 are respectively sleeved on the two pipelines 1 (the edge pressing parts 4 are synchronously sleeved on the pipelines 1), and the sealing rings 5 are sleeved on the pipelines 1, so that the sealing rings 5 abut against the installation assemblies 3, and then the limiting blocks 51 are fixedly installed, so that the limiting blocks 51 abut against the sealing rings 5;

[0094] Then, the two pipelines 1 are butt jointed by hoisting;

[0095] After that, the outer protective belt 2 is wound and installed, so that the outer protective belt 2 abuts against the two groups of installation assemblies 3 at the same time;

[0096] Finally, the clamping plate 43 is tightly abutted against the end of the outer protective belt 2 by rotating the screw rod 42.

[0097] In a third aspect, the utility model provides a natural gas pipeline, and specific contents are as follows.

[0098] Example 10

[0099] A natural gas pipeline comprises a plurality of butt jointed pipelines 1 and the natural gas pipeline butt joint device as described in examples 8 and 9, and the natural gas pipeline butt joint device supports the two pipelines 1 subjected to butt joint operation to maintain the balance of the pipelines 1.

[0100] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0101] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0102] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0103] In the utility model, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0104] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

[0105] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A natural gas pipeline interface corrosion protection structure, characterized by, The natural gas pipeline interface anticorrosion structure comprises two outer protective bands (2) used for being wrapped around two pipelines (1) respectively, and two groups of mounting assemblies (3) used for being sleeved on the two pipelines (1) respectively, the outer protective band (2) is located between the two groups of mounting assemblies (3), and each of the two groups of mounting assemblies (3) is circumferentially and uniformly provided with at least two groups of pressing edge components (4), each of the pressing edge components (4) comprises a sliding plate (41) connected to the mounting assembly (3), a screw rod (42) threadedly connected to the other end of the sliding plate (41), and a clamping plate (43) rotationally connected to the screw rod (42), and each of the clamping plates (43) surrounds and clamps the end of the outer protective band (2).

2. A corrosion protection structure for a natural gas pipeline interface according to claim 1, wherein Each of the clamping plates (43) is fixed with a guide rod (44), one end of each of the guide rods (44) is fixedly connected to the corresponding clamping plate (43), and the other end is slidably connected to the corresponding sliding plate (41).

3. The corrosion protection structure for a natural gas pipeline interface according to claim 1, wherein One end of the sliding plate (41) is slidably connected to the mounting assembly (3).

4. The corrosion control structure for a natural gas pipeline interface according to claim 1, wherein The two ends of the outer protective band (2) abut against the two groups of mounting assemblies (3) respectively.

5. The corrosion protection structure for a natural gas pipeline interface according to any one of claims 1 to 4, characterized in that, The natural gas pipeline interface anticorrosion structure further comprises two sealing rings (5) used for being sleeved on the two pipelines (1), and the two ends of the outer protective band (2) are wrapped outside the two sealing rings (5) respectively.

6. A corrosion protection structure for a natural gas pipeline interface according to claim 5, wherein The opposite ends of the two sealing rings (5) abut against the two mounting assemblies (3) respectively, and the other ends of the two sealing rings (5) are abutted with a plurality of limiting blocks (51), and each of the limiting blocks (51) is used for being fixed to the pipeline (1).

7. A corrosion protection structure for a natural gas pipeline interface according to claim 5, wherein One end of each of the two sealing rings (5) is inserted with at least one limiting rod (52), one end of each of the limiting rods (52) is inserted into the corresponding sealing ring (5), and the other end is fixedly connected to the corresponding mounting assembly (3).

8. A natural gas pipeline docking apparatus, characterized by, The natural gas pipeline interface anticorrosion structure comprises a base (6) and at least two groups of support assemblies (7) slidably connected to the base (6), each of the support assemblies (7) is used for supporting the two pipelines (1), and any one of the pipelines (1) is supported by at least one group of the support assemblies (7).

9. A natural gas pipeline pigging apparatus as defined in claim 8, wherein, The support assembly (7) comprises a support rod (71) slidably connected to the base (6), a frame (72) fixedly connected to the upper end of the support rod (71) and used for being sleeved on the side wall of the pipeline (1), a lead screw (73) threadedly connected to the frame (72), and an arc-shaped plate (74) rotationally connected to the end of the lead screw (73), and the arc-shaped plate (74) is used for abutting against the pipeline (1).

10. A natural gas pipeline characterized by, The natural gas pipeline interface anticorrosion structure comprises a plurality of pipelines (1) and the natural gas pipeline interface anticorrosion structure according to any one of claims 8 or 9.

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