Anti-corrosion device for hazardous chemical substance conveying pipeline

Abstract

The utility model relates to the technical field of hazardous chemical substance storage and transportation, in particular to a hazardous chemical substance conveying pipeline anti-corrosion device which comprises two connecting rings, sealing liners, connecting pieces and locking assemblies, each connecting ring is provided with a caulking groove, the number of the sealing liners is the same as that of the connecting rings, and the locking assemblies are arranged on the connecting pieces. The two sealing liners are installed in the caulking grooves in a one-to-one correspondence mode, the two sealing liners define an anti-corrosion space wrapping the flange, the two ends of the connecting piece are rotationally connected with the connecting rings respectively, and the locking assembly is detachably connected with the connecting rings. According to the anti-corrosion device for the hazardous chemical substance conveying pipeline, the sealing linings are installed in the connecting rings, the two connecting rings are controlled to be connected through cooperation of the connecting pieces and the locking assemblies, and therefore the two sealing linings are driven to define the anti-corrosion space wrapping the flange, and corrosive substances are effectively prevented from entering the anti-corrosion space to corrode the pipeline; therefore, the service life of the pipeline is prolonged, and the purpose of reducing the cost of petroleum transportation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of storage and transportation of hazardous chemicals, in particular to an anti-corrosion device for hazardous chemical transportation pipelines. Background Art

[0002] Petrochemicals are a type of hazardous chemical. Oil is generally transported to docks via large tankers and then transported from the docks to refineries or oil depots via pipelines. Traditionally, pipelines for transporting oil are generally made up of flanges of multiple pipes spliced ​​together. To protect the pipelines from external corrosion, anti-rust paint is generally applied to each pipeline. However, the flanges of each pipeline are squeezed between the pipelines, which can easily damage the anti-rust paint on the flanges, leading to pipeline corrosion and reducing the service life of the pipeline. This leads to the technical problem of high transportation costs for oil transportation pipelines. Utility Model Content

[0003] Based on this, it is necessary to provide a hazardous chemical transportation pipeline anti-corrosion device to address the technical problem of high transportation costs of oil transportation pipelines.

[0004] A corrosion protection device for a hazardous chemical transportation pipeline is installed on a pipeline. The pipeline includes a pipe body and a flange. The flanges of the two pipelines are connected to each other by bolts. The corrosion protection device for the hazardous chemical transportation pipeline includes: a connecting ring, a sealing liner, a connecting plate and a locking assembly. There are two connecting rings, and each connecting ring is provided with an embedding groove. The number of the sealing liners is the same as the number of the connecting rings, and they are installed in the embedding grooves one by one. The two sealing liners enclose and form an anti-corrosion space covering the flange. The connecting plate is arranged on one side of each connecting ring, and the two ends of the connecting plate are respectively rotatably connected to each connecting ring. The locking assembly is arranged on the other side of each connecting ring and is detachably connected to each connecting ring.

[0005] In one embodiment, the connecting ring includes a body, a rear flange and a front flange, the body is provided with the embedding groove, the rear flange is rotatably connected to the connecting piece, and the front flange is detachably connected to the locking assembly.

[0006] In one embodiment, the rear flange is provided with a limiting groove, and the connecting piece is rotatably disposed in the limiting groove.

[0007] In one embodiment, the front flange is provided with an avoidance groove, the locking assembly is movably disposed in the avoidance groove, and is detachably connected to the front flange.

[0008] In one embodiment, the locking assembly includes a mounting shaft, a transfer rod and a pressing fastener, the mounting shaft is rotatably connected to one of the front flanges, the transfer rod is rotatably connected to the mounting shaft and is movably arranged in the avoidance groove, the pressing fastener is threadedly connected to the transfer rod and provides an extrusion force for the other front flange to approach the mounting shaft.

[0009] In one embodiment, the sealing liner includes a lining body and a pressing edge. The lining body is used to enclose an anti-corrosion space. There are two pressing edges, which are respectively arranged on both sides of the lining body. When the two sealing liners enclose an anti-corrosion space, the pressing edges fit together.

[0010] In one embodiment, the sealing liner further includes a sealing strip, which is connected to the liner body and is arranged corresponding to the gap between the two flanges.

[0011] In one embodiment, the sealing strip shrinks toward the gap component.

[0012] In one embodiment, the sealing liner further includes a sealing ring connected to the liner body. The number of the sealing rings is the same as the number of the bolts and is arranged corresponding to the positions of the bolts.

[0013] In one embodiment, the sealing ring is provided with a guide surface, and the guide surface gradually shrinks toward the direction of the bolt.

[0014] The beneficial effects of the hazardous chemical transportation pipeline anti-corrosion device shown in the utility model are: a sealing liner is installed in the connecting ring, and the connection of the two connecting rings is controlled by utilizing the cooperation of the connecting piece and the locking assembly, thereby driving the two sealing liners to enclose and form an anti-corrosion space covering the flange, which is beneficial to effectively prevent corrosive substances from entering the anti-corrosion space and corroding the pipeline, thereby increasing the service life of the pipeline and achieving the purpose of reducing the cost of oil transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the hazardous chemicals transportation pipeline anti-corrosion device shown in the present invention;

[0016] Figure 2 for Figure 1 The exploded schematic diagram of the anti-corrosion device for hazardous chemical transportation pipelines shown;

[0017] Figure 3 for Figure 1 The schematic diagram of the structure of the anti-corrosion device for hazardous chemical transportation pipeline installed on the pipeline is shown;

[0018] Figure 4 for Figure 3 The schematic diagram of the pipeline structure shown;

[0019] Figure 5 for Figure 3 Schematic cross-section shown.

[0020] The meanings of the numbers in the accompanying drawings are:

[0021] 100. Anti-corrosion device for hazardous chemical transportation pipelines;

[0022] 10. Connecting ring; 11. Main body; 111. Embedding groove; 12. Rear flange; 121. Limiting groove; 13. Front flange; 131. Avoidance groove;

[0023] 20. Sealing lining; 21. Lining body; 22. Pressing edge; 23. Sealing strip; 24. Sealing ring; 241. Guide surface;

[0024] 30. Connecting piece;

[0025] 40. Locking assembly; 41. Mounting shaft; 42. Adapter rod; 43. Fastener;

[0026] 50. Anti-corrosion space;

[0027] 200, pipe; 201, pipe body; 202, flange;

[0028] 300. Bolt. DETAILED DESCRIPTION

[0029] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0032] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0033] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0035] like Figure 1 As shown, it is a hazardous chemical transportation pipeline anti-corrosion device 100 shown in the present invention, as shown in FIG. Figure 3 As shown, the hazardous chemicals transportation pipeline anti-corrosion device 100 is installed on the pipeline 200, wherein, as shown in FIG. Figure 4 As shown, the pipeline 200 includes a pipe body 201 and a flange 202 . The flanges 202 of the two pipelines 200 are connected to each other by bolts 300 . The hazardous chemical transportation pipeline anti-corrosion device 100 is used to prevent corrosion at the flanges 202 of the pipelines 200 .

[0036] like Figures 1 to 2 As shown, the anti-corrosion device 100 for hazardous chemical transportation pipeline includes: a connecting ring 10, a sealing liner 20, a connecting piece 30 and a locking assembly 40, wherein the number of the connecting rings 10 is two, each connecting ring 10 is used to install the sealing liner 20, the number of the sealing liner 20 is the same as the number of the connecting rings 10, and is installed in each connecting ring 10 one by one. The two sealing liners 20 enclose and form an anti-corrosion space 50 covering the flange 202. The connecting piece 30 is provided on one side of each connecting ring 10, and the two ends of the connecting piece 30 are respectively connected to each connecting ring 10. 0 rotation connection, the locking assembly 40 is arranged on the other side of each connecting ring 10 and is detachably connected to each connecting ring 10. The sealing liner 20 is installed in the connecting ring 10, and the connection of the two connecting rings 10 is controlled by the cooperation of the connecting piece 30 and the locking assembly 40, thereby driving the two sealing liners 20 to enclose and form an anti-corrosion space 50 covering the flange 202. This is conducive to effectively preventing corrosive substances from entering the anti-corrosion space 50 and corroding the pipeline 200, thereby increasing the service life of the pipeline 200 and achieving the purpose of reducing the cost of oil transportation.

[0037] Below, combined Figures 1 to 5 , the above-mentioned hazardous chemical transportation pipeline anti-corrosion device 100 is further explained.

[0038] like Figures 1 to 2 As shown, the connecting ring 10 includes a main body 11, a rear flange 12 and a front flange 13. The main body 11 is provided with an embedding groove 111, and the embedding groove 111 is used to install the sealing liner 20. The rear flange 12 is rotatably connected to the connecting piece 30, and the rear flange 12 is provided with a limiting groove 121. The connecting piece 30 is rotatably set in the limiting groove 121. The front flange 13 is detachably connected to the locking assembly 40. The front flange 13 is provided with an avoidance groove 131. The locking assembly 40 is movably set in the avoidance groove 131 and is detachably connected to the front flange 13.

[0039] like Figure 2 As shown, the sealing liner 20 includes a lining body 21, a pressure edge 22, a sealing strip 23 and a sealing ring 24. The lining body 21 is used to enclose an anti-corrosion space 50. There are two pressure edges 22, and the two pressure edges 22 are respectively arranged on both sides of the lining body 21. When the two sealing liners 20 enclose an anti-corrosion space 50, the pressure edges 22 fit each other. The sealing strip 23 is connected to the lining body 21 and is arranged corresponding to the gap between the two flanges 202. The sealing strip 23 shrinks toward the gap component to facilitate insertion into the gap between the two flanges 202. The sealing ring 24 is connected to the lining body 21. The number of sealing rings 24 is the same as the number of bolts 300 and is arranged corresponding to the position of the bolts 300. In addition, the sealing ring 24 is provided with a guide surface 241, which gradually shrinks toward the direction of the bolt 300 to facilitate insertion into the countersunk hole of the flange 202, thereby closing the countersunk hole and preventing corrosive substances from corroding the bolt 300.

[0040] like Figure 2 As shown, the locking assembly 40 includes a mounting shaft 41, a transfer rod 42 and a pressing member 43. The mounting shaft 41 is rotatably connected to one of the front flanges 13. The transfer rod 42 is rotatably connected to the mounting shaft 41 and is movably arranged in the avoidance groove 131. The pressing member 43 is threadedly connected to the transfer rod 42 and provides an extrusion force for the other front flange 13 to approach the mounting shaft 41.

[0041] The working principle of the anti-corrosion device 100 for hazardous chemical transportation pipelines shown in the present invention is as follows: the sealing liner 20 is installed in the embedding groove 111 of the connecting ring 10. When in use, the sealing liner 20 in one of the connecting rings 10 is controlled to cover half of each flange 202, the sealing strip 23 of the sealing liner 20 is inserted into the gap between each flange 202, and the sealing ring 24 is used to block the countersunk hole of the mounting bolt 300. Then, the other connecting ring 10 is controlled to rotate around the connecting piece 30 so that the sealing liner 20 in the other connecting ring 10 covers the other half of each flange 202. At this time, the two sealing liners 20 are enclosed to form an anti-corrosion space 50, and the two pressing edges 22 are used to press the sealing liner 20 together. They fit together, thereby preventing corrosive substances from entering the anti-corrosion space 50, and the sealing strip 23 inserted into the gap between each flange 202 is used to further prevent corrosive substances from entering the gap between the two flanges 202. At the same time, under the sealing of the sealing ring 24, corrosive substances can also be effectively prevented from corroding the bolts 300, thereby strictly protecting the connection of the pipeline 200. Finally, the pressing fastener 43 is rotated around the adapter rod 42 so that the pressing fastener 43 is close to the installation axis 41 along the adapter rod 42, thereby squeezing the front flanges 13 of the two connecting rings 10 to achieve the connection of the two connecting rings 10, that is, the installation of the hazardous chemical transportation pipeline anti-corrosion device 100.

[0042] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A hazardous chemical transportation pipeline anti-corrosion device, installed on a pipeline, the pipeline includes a pipe body and a flange, the flanges of the two pipelines are connected to each other by bolts, characterized in that: The anti-corrosion device for the hazardous chemical transportation pipeline includes: a connecting ring, a sealing liner, a connecting piece and a locking assembly. There are two connecting rings, and each connecting ring is provided with an embedding groove. The number of the sealing liners is the same as the number of the connecting rings, and they are installed in the embedding grooves one by one. The two sealing liners enclose and form an anti-corrosion space covering the flange. The connecting piece is arranged on one side of each connecting ring, and the two ends of the connecting piece are respectively rotatably connected to each connecting ring. The locking assembly is arranged on the other side of each connecting ring and is detachably connected to each connecting ring.

2. The anti-corrosion device for hazardous chemical transportation pipelines according to claim 1 is characterized in that: The connecting ring includes a body, a rear flange and a front flange. The body is provided with the embedding groove. The rear flange is rotatably connected to the connecting piece, and the front flange is detachably connected to the locking assembly.

3. The anti-corrosion device for hazardous chemical transportation pipelines according to claim 2 is characterized in that: The rear flange is provided with a limiting groove, and the connecting piece is rotatably arranged in the limiting groove.

4. The anti-corrosion device for hazardous chemical transportation pipelines according to claim 2 is characterized in that: The front flange is provided with an avoidance groove, and the locking assembly is movably arranged in the avoidance groove and is detachably connected to the front flange.

5. The anti-corrosion device for hazardous chemical transportation pipelines according to claim 4 is characterized in that: The locking assembly includes a mounting shaft, a transfer rod and a pressing fastener. The mounting shaft is rotatably connected to one of the front flanges. The transfer rod is rotatably connected to the mounting shaft and is movably arranged in the avoidance groove. The pressing fastener is threadedly connected to the transfer rod and provides an extrusion force for the other front flange to approach the mounting shaft.

6. The anti-corrosion device for hazardous chemical transportation pipelines according to claim 1 is characterized in that: The sealing liner includes a lining body and a pressing edge. The lining body is used to enclose an anti-corrosion space. There are two pressing edges, which are respectively arranged on both sides of the lining body. When the two sealing liners enclose an anti-corrosion space, the pressing edges fit together.

7. The anti-corrosion device for hazardous chemical transportation pipelines according to claim 6, characterized in that: The sealing liner further comprises a sealing strip, which is connected to the liner body and is arranged corresponding to the gap between the two flanges.

8. The anti-corrosion device for hazardous chemical transportation pipelines according to claim 7, characterized in that: The sealing strip shrinks toward the gap component.

9. The anti-corrosion device for hazardous chemical transportation pipelines according to claim 6, characterized in that: The sealing liner further includes a sealing ring connected to the liner body. The number of the sealing rings is the same as the number of the bolts and is arranged corresponding to the positions of the bolts.

10. The anti-corrosion device for hazardous chemical transportation pipelines according to claim 9, characterized in that: The sealing ring is provided with a guide surface, and the guide surface gradually shrinks toward the direction of the bolt.

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