Anti-corrosion flange for petroleum refining

Abstract

The utility model relates to the technical field of flanges, and particularly discloses an anticorrosive flange for petroleum refining, which comprises a first flange and a second flange, the interiors of the first flange and the second flange are fixedly connected with pipelines, the outer wall of the second flange is rotatably connected with a rotating ring, and the right end face of the rotating ring is rotatably connected with a first rotating shaft. The right end face of the first rotating shaft is fixedly connected with a first connecting block, the interior of the first connecting block is rotationally connected with a threaded rod, the right end face of the second flange is rotationally connected with a second rotating shaft, the right end face of the second rotating shaft is fixedly connected with a second connecting block, and the threaded rod is in threaded connection with the second connecting block. And an anti-corrosion layer is arranged on the outer wall of the stainless steel base layer, a threaded rod, a first rotating shaft, a first connecting block, a second rotating shaft, a second connecting block and a rotating ring are matched, the rotating ring can be driven to rotate, and therefore the position of a through hole in the second flange can be adjusted, alignment with a through hole in the first flange is facilitated, and installation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to flange technical field, specifically disclose a kind of anticorrosive flange for petroleum refining. BACKGROUND

[0002] Petroleum refining pipeline needs to be connected by flange, flange is also called flange or flange, the part that makes pipe and pipe connect each other, connect in pipe end, flange has eye, bolt makes two flanges tightly connect, flange is sealed with gasket, flange is a disc part, most common in pipeline engineering, flange is used in pairs, in pipeline engineering, flange is mainly used for the connection of pipeline, in the end of the two pipelines that need to be connected, each installation flange.

[0003] The existing flange has poor corrosion resistance, the flange body is easily corroded, reducing the service life of the flange as a whole, reducing the practicability, and the connecting holes on the existing flange are fixedly arranged, so that it is difficult to connect with the external mounting hole during installation, installation error exists, and the needs of users cannot be met, therefore, an anticorrosive flange for petroleum refining is needed to solve this problem. SUMMARY

[0004] The utility model provides a kind of anticorrosive flange for petroleum refining, the through hole on the second flange can be adjusted rotationally, is convenient for with the through hole on the first flange alignment, it is convenient to install.

[0005] The utility model is realized as follows, a kind of anticorrosive flange for petroleum refining, including first flange and second flange, the inside of first flange and second flange is fixedly connected with pipeline, the outer wall of second flange is rotatably connected with swivel ring, the right end surface of swivel ring is rotatably connected with first rotation shaft, the right end surface of first rotation shaft is fixedly connected with first connecting block, the inside of first connecting block is rotatably connected with threaded rod, the right end surface of second flange is rotatably connected with second rotation shaft, the right end surface of second rotation shaft is fixedly connected with second connecting block, threaded rod is screw threaded with second connecting block;

[0006] The first flange and the second flange all include stainless steel base layer, the outer wall of stainless steel base layer is provided with anticorrosive layer.

[0007] In order to facilitate the limiting of swivel ring, as a kind of anticorrosive flange for petroleum refining of the utility model is preferred, the outer wall of second flange is provided with limiting groove, the inner wall of swivel ring is fixedly connected with the limiting ring matched with limiting groove.

[0008] In order to facilitate the connection of the first flange and the second flange, as a kind of anticorrosion flange for petroleum refining of the utility model preferably, the outer wall of the first flange and the rotating ring is all through the opening of multiple through holes, and the through hole of two opposites is all provided with fixed bolt, and the threaded end of multiple fixed bolts is all threadedly connected with fixed nut.

[0009] In order to facilitate the sealing between the first flange and the second flange, as a kind of anticorrosion flange for petroleum refining of the utility model preferably, the first flange and the second flange are provided with sealing pad.

[0010] In order to facilitate corrosion prevention, as a kind of anticorrosion flange for petroleum refining of the utility model preferably, the anticorrosion layer is perchloroethylene anticorrosion paint.

[0011] In order to facilitate the rotation of threaded rod, as a kind of anticorrosion flange for petroleum refining of the utility model preferably, the threaded rod is fixedly connected with knob at one end.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The anticorrosion flange for petroleum refining, threaded rod, threaded rod drives rotating ring along second flange through second connecting block and second shaft, so that the through hole on rotating ring is respectively aligned with the through hole on first flange, the position of through hole on second flange can be adjusted through rotating ring rotation, and it is convenient to align with the through hole on first flange, and it is convenient to install. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall structural drawing of the anticorrosion flange for petroleum refining of the utility model;

[0015] Figure 2 It is the structure drawing of second flange of the utility model;

[0016] Figure 3 It is the structure drawing of rotating ring of the utility model;

[0017] Figure 4 It is the structure drawing of first flange and second flange of the utility model.

[0018] In the drawing, 1, first flange;2, second flange;3, pipeline;4, rotating ring;5, first shaft;6, first connecting block;7, second shaft;8, second connecting block;9, threaded rod;10, fixed bolt;11, fixed nut;12, through hole;13, stainless steel base layer;14, anticorrosion layer;15, limit slot;16, limit ring. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples.

[0020] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to 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. In addition, in the description of the utility model, the meaning of "a plurality of" is two or more than two, unless otherwise explicitly and specifically limited.

[0021] Please refer to Figures 1-4 A kind of anticorrosion flange for petroleum refining, including first flange 1 and second flange 2, the inside of first flange 1 and second flange 2 is fixedly connected with pipeline 3, the outer wall of second flange 2 is rotatably connected with rotating ring 4, the right end surface of rotating ring 4 is rotatably connected with first rotating shaft 5, the right end surface of first rotating shaft 5 is fixedly connected with first connecting block 6, the inside of first connecting block 6 is rotatably connected with threaded rod 9, the right end surface of second flange 2 is rotatably connected with second rotating shaft 7, the right end surface of second rotating shaft 7 is fixedly connected with second connecting block 8, threaded rod 9 is threadedly connected with second connecting block 8;

[0022] First flange 1 and second flange 2 all include stainless steel base layer 13, and the outer wall of stainless steel base layer 13 is provided with anticorrosion layer 14.

[0023] In this embodiment: when connecting first flange 1 and second flange 2, first flange 1 and second flange 2 are butted together, threaded rod 9 is rotated, threaded rod 9 drives rotating ring 4 to rotate along second flange 2 through second connecting block 8 and second rotating shaft 7, so that through hole 12 on rotating ring 4 is aligned with through hole 12 on first flange 1 respectively, fixed bolt 10 is inserted into through hole 12, and then fixed nut 11 is tightened on fixed bolt 10, so that first flange 1 and rotating ring 4 are fixedly connected together, so that first flange 1 and second flange 2 are fixedly connected together, and the position of through hole 12 on second flange 2 can be adjusted by rotating rotating ring 4, so that through hole 12 on first flange 1 is aligned, and installation is facilitated.

[0024] As a technical optimization scheme of the utility model, a limiting groove 15 is formed in the outer wall of second flange 2, and a limiting ring 16 matched with the limiting groove 15 is fixedly connected to the inner wall of rotating ring 4.

[0025] In the embodiment, the limiting groove 15 and the limiting ring 16 facilitate limiting the rotation ring 4, so that the rotation ring 4 rotates on the outer wall of the second flange 2.

[0026] As a technical optimization scheme of the utility model, the outer wall of the first flange 1 and the rotation ring 4 are both provided with a plurality of through holes 12, and the opposite through holes 12 are both provided with a fixing bolt 10, and the threaded end of the plurality of fixing bolts 10 is threadedly connected with a fixing nut 11.

[0027] In the embodiment, the fixing bolt 10 and the fixing nut 11 facilitate connecting the first flange 1 and the second flange 2.

[0028] As a technical optimization scheme of the utility model, the first flange 1 and the second flange 2 are provided with a sealing gasket.

[0029] In the embodiment, the sealing gasket arranged between the first flange 1 and the second flange 2 facilitates keeping the sealing property between the first flange 1 and the second flange 2 good.

[0030] As a technical optimization scheme of the utility model, the anticorrosive layer 14 is a perchloroethylene anticorrosive paint.

[0031] In the embodiment, the anticorrosive layer 14 is set as the perchloroethylene anticorrosive paint, which can be used to prevent corrosion caused by acid, alkali and some other chemical substances.

[0032] As a technical optimization scheme of the utility model, one end of the threaded rod 9 is fixedly connected with a knob.

[0033] In the embodiment, the knob is fixedly connected at one end of the threaded rod 9, which facilitates rotating the threaded rod 9.

[0034] The working principle and the use process of the utility model are as follows: when connecting the first flange 1 and the second flange 2, first, the first flange 1 and the second flange 2 are butted together, then the threaded rod 9 is rotated, the threaded rod 9 drives the rotation ring 4 to rotate along the second flange 2 through the second connecting block 8 and the second rotating shaft 7, so that the through holes 12 on the rotation ring 4 are respectively aligned with the through holes 12 on the first flange 1, then the fixing bolt 10 is inserted into the through holes 12, and then the fixing nut 11 is screwed on the fixing bolt 10, so that the first flange 1 and the rotation ring 4 are fixedly connected together, thereby the first flange 1 and the second flange 2 are fixedly connected together, through the rotation of the rotation ring 4, the position of the through holes 12 on the second flange 2 can be adjusted, so as to be aligned with the through holes 12 on the first flange 1, which facilitates installation.

[0035] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A corrosion-proof flange for petroleum refining, comprising a first flange (1) and a second flange (2), the inside of the first flange (1) and the second flange (2) are fixedly connected with a pipeline (3), characterized in that: The outer wall of the second flange (2) is rotationally connected with a rotating ring (4), the right end surface of the rotating ring (4) is rotationally connected with a first rotating shaft (5), the right end surface of the first rotating shaft (5) is fixedly connected with a first connecting block (6), the inside of the first connecting block (6) is rotationally connected with a threaded rod (9), the right end surface of the second flange (2) is rotationally connected with a second rotating shaft (7), the right end surface of the second rotating shaft (7) is fixedly connected with a second connecting block (8), and the threaded rod (9) is threadedly connected with the second connecting block (8). The first flange (1) and the second flange (2) both comprise a stainless steel base layer (13), and the outer wall of the stainless steel base layer (13) is provided with a corrosion-resistant layer (14).

2. A corrosion-proof flange for petroleum refining according to claim 1, characterized in that: The outer wall of the second flange (2) is provided with a limiting groove (15), and the inner wall of the rotating ring (4) is fixedly connected with a limiting ring (16) matched with the limiting groove (15).

3. The corrosion resistant flange for petroleum refining as claimed in claim 1, wherein: The outer walls of the first flange (1) and the rotating ring (4) are both provided with a plurality of through holes (12), and the through holes (12) opposite to each other are both provided with a fixing bolt (10), and the threaded ends of the plurality of fixing bolts (10) are all threadedly connected with a fixing nut (11).

4. The corrosion resistant flange for petroleum refining as claimed in claim 1, wherein: The first flange (1) and the second flange (2) are provided with a sealing gasket.

5. The corrosion resistant flange for petroleum refining as claimed in claim 1, wherein: The corrosion-resistant layer (14) is a perchloroethylene corrosion-resistant paint.

6. A corrosion-proof flange for petroleum refining according to claim 1, characterized in that: One end of the threaded rod (9) is fixedly connected with a knob.

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