High-strength flange for ocean engineering

Abstract

The utility model discloses a high-strength flange for ocean engineering, and belongs to the technical field of flanges. Comprising an upper oil pipe and a bolt, a locking nut is arranged on the circumferential outer wall of the bolt, and a first asbestos gasket is arranged on the circumferential inner wall of the bolt. A sealing assembly comprises an upper annular shell arranged on the circumferential outer wall of the upper oil pipe, a shell asbestos gasket is arranged below the upper annular shell, and a lower annular shell is arranged below the shell asbestos gasket. The positioning assembly comprises an upper flange arranged on the circumferential inner wall of the upper annular shell, a lower flange is arranged on the circumferential inner wall of the lower annular shell, a first positioning groove is formed in the upper flange, and a first positioning protruding block is arranged above the lower flange. The flange is wrapped by the upper annular shell and the lower annular shell and is matched with the third asbestos gasket and the fourth asbestos gasket to seal the device, the sealing performance is good, the upper flange and the lower flange are matched with the positioning groove and the positioning protruding block, after the lower flange is rotated to be incapable of rotating, threaded holes in the flange can be aligned, and the positioning effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of flanges, and more specifically, to a high-strength flange for ocean engineering. Background Technique

[0002] A flange, also called a flange convex disc or a flange, is a part used to connect pipes to each other, for connecting between pipe ends, and there are also flanges used at the inlets and outlets of equipment for connecting between two equipment. Some flanges are used in the deep sea for connecting deep-sea equipment. During the use of existing deep-sea flanges, they lack the ability to withstand high pressure for a long time and are in the deep sea for a long time, so deep-sea flanges are prone to corrosion.

[0003] The patent document with the publication number of CN213479547 in the prior art provides an anti-corrosion flange for marine pipelines. This anti-corrosion flange for marine pipelines is butt-jointed by two flanges, then fixed by bolts and locking nuts, and a rubber sealing ring is installed between the two flanges for sealing, and crude oil is transported through the pipeline.

[0004] Although this anti-corrosion flange for marine pipelines has many beneficial effects, there are still the following problems: Although this anti-corrosion flange for marine pipelines installs a rubber sealing ring, the rubber sealing ring does not cover the entire circumferential surface of the flange, there will be gaps between the flanges, which is easy to cause leakage of crude oil in the pipe, and the sealing performance is poor and needs to be improved; Secondly, this anti-corrosion flange for marine pipelines does not install a positioning device. When installing, it is not easy for workers to quickly align the threaded holes, and the positioning effect is poor. Therefore, a high-strength flange for ocean engineering is proposed for the above problems. Content of the Utility Model

[0005] 1. Technical Problems to be Solved

[0006] The purpose of the utility model is to provide a high-strength flange for ocean engineering to solve the problems of the existing anti-corrosion flange for marine pipelines that there will be gaps between the flanges, which is easy to cause leakage of crude oil in the pipe, the sealing performance is poor, and when installing, it is not easy for workers to quickly align the threaded holes, and the positioning effect is poor as mentioned in the above background technique.

[0007] 2. Technical Solution

[0008] A high-strength flange for ocean engineering includes an annular component, a sealing component and a positioning component;

[0009] Among them,

[0010] The annular component includes an upper oil pipe and bolts. A locking nut is arranged on the outer circumferential wall of the bolt, and an asbestos gasket I is arranged on the inner circumferential wall of the bolt;

[0011] The sealing assembly includes an upper annular outer shell disposed on the circumferential outer wall of the upper oil pipe. An outer shell asbestos gasket is provided below the upper annular outer shell, and a lower annular outer shell is provided below the outer shell asbestos gasket.

[0012] The positioning assembly includes an upper flange disposed on the circumferential inner wall of the upper annular outer shell, a lower flange disposed on the circumferential inner wall of the lower annular outer shell, a first positioning groove provided inside the upper flange, and a first positioning protrusion provided above the lower flange.

[0013] Preferably, an asbestos gasket two is provided above the lock nut, and a lower oil pipe is provided on the circumferential inner wall of the lower annular outer shell.

[0014] Preferably, an asbestos gasket three is provided on the circumferential inner wall of the upper annular outer shell, an asbestos gasket four is provided on the circumferential inner wall of the lower annular outer shell, and a threaded hole is provided above the upper annular outer shell.

[0015] Preferably, a flange asbestos gasket is provided below the upper flange, and a flange threaded hole is provided above the upper flange.

[0016] Preferably, a second positioning groove is provided inside the upper flange, and a second positioning protrusion is provided above the lower flange.

[0017] 3. Beneficial Effects

[0018] Compared with the prior art, the advantages of the present utility model are as follows:

[0019] With the cooperation of the upper annular outer shell and the lower annular outer shell, the present utility model can wrap the flange, then fix it with bolts and lock nuts, and then seal the device through the cooperation of the upper annular outer shell and the lower annular outer shell with asbestos gasket three and asbestos gasket four, with good sealing performance;

[0020] Secondly, by docking the upper flange and the lower flange with each other, and then using the cooperation of the upper flange and the lower flange, the positioning groove opened inside the upper flange and the positioning protrusion on the lower flange, after rotating the lower flange until it cannot rotate, the threaded holes on the flange can be aligned, with good positioning effect. Brief Description of the Drawings

[0021] Figure 1 is a detailed schematic diagram of the annular component of the present utility model;

[0022] Figure 2 is a detailed schematic diagram of the sealing assembly of the present utility model;

[0023] Figure 3 is a detailed schematic diagram of the positioning assembly of the present utility model;

[0024] Figure 4 is a partial detailed schematic diagram of the positioning assembly of the present utility model;

[0025] Figure 5 This is a partial detailed schematic diagram of the positioning component of the present utility model.

[0026] Explanation of the reference numerals in the figure: 1, annular component; 2, sealing component; 3, positioning component; 110, upper oil pipe; 120, bolt; 130, locking nut; 140, asbestos gasket I; 150, asbestos gasket II; 160, lower oil pipe; 210, upper annular housing; 220, housing asbestos gasket; 230, lower annular housing; 240, asbestos gasket III; 250, asbestos gasket IV; 260, housing threaded hole; 310, upper flange; 320, flange asbestos gasket; 330, lower flange; 340, flange threaded hole; 350, positioning groove I; 360, positioning groove II; 370, positioning protrusion I; 380, positioning protrusion II. Specific embodiments

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present utility model.

[0028] In the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0030] Please refer to Figures 1-5 The present utility model provides a technical solution:

[0031] A high-strength flange for ocean engineering. The annular component 1 includes an upper oil pipe 110 and bolts 120. The outer circumferential wall of the bolts 120 is threadedly connected with locking nuts 130. An asbestos gasket one 140 is sleeved on the inner circumferential wall of the bolts 120. The upper oil pipe 110 can transport crude oil. The bolts 120 cooperate with the locking nuts 130 to fix the upper annular housing 210, the lower annular housing 230, the upper flange 310 and the lower flange 340.

[0032] The sealing component 2 includes an upper annular housing 210 sleeved on the outer circumferential wall of the upper oil pipe 110. An outer housing asbestos gasket 220 is arranged below the upper annular housing 210. The lower annular housing 230 is installed below the outer housing asbestos gasket 220. The upper annular housing 210 and the lower annular housing 230 cooperate with the outer housing asbestos gasket 220 to wrap the flange and seal it with the outer housing asbestos gasket 220, providing better sealing performance.

[0033] The positioning component 3 includes an upper flange 310 installed on the inner circumferential wall of the upper annular housing 210. A lower flange 330 is installed on the inner circumferential wall of the lower annular housing 230. A positioning groove one 350 is opened inside the upper flange 310. A positioning convex block one 370 is welded above the lower flange 330. The upper flange 310 and the lower flange 330 can fix and dock the upper oil pipe 110 and the lower oil pipe 160. The positioning groove 350 cooperating with the positioning convex block 370 can be used for the accurate positioning of the flange threaded hole 340.

[0034] Specifically, an asbestos gasket two 150 is arranged above the locking nut 130. A lower oil pipe 160 is sleeved on the inner circumferential wall of the lower annular housing 230. The asbestos gasket two 150 is installed between the locking nut 130 and the lower annular housing 130 to seal the gap and prevent the penetration of seawater. The lower oil pipe 160 can cooperate with the upper oil pipe 110 to transport crude oil.

[0035] Furthermore, an asbestos gasket three 240 is installed on the inner circumferential wall of the upper annular housing 210. An asbestos gasket four 250 is installed on the inner circumferential wall of the lower annular housing 230. A threaded hole 260 is opened above the upper annular housing 210. The asbestos gasket three 240 is used to seal the gap between the upper annular housing 210 and the upper flange 310. The asbestos gasket four 250 is used to seal the gap between the lower annular housing 230 and the lower flange 330, improving the sealing performance of the device.

[0036] It should be noted that a flange asbestos gasket 320 is arranged below the upper flange 310. A flange threaded hole 340 is opened above the upper flange 310. The flange asbestos gasket 320 is installed between the upper flange 310 and the lower flange 330 to seal the gap between the upper flange 310 and the lower flange 330. The flange threaded hole 340 is used to install bolts 120 to fix the upper flange 310 and the lower flange 330.

[0037] It should be noted that a second positioning groove 360 is formed inside the upper flange 310, and a second positioning protrusion 380 is welded above the lower flange 330. The second positioning groove 360 cooperates with the second positioning protrusion 380 to enhance the positioning effect and can quickly align the flange threaded holes 340.

[0038] In addition, the accessory materials and modules involved in the present utility model are all prior arts, which can be fully realized by those skilled in the art without further elaboration. The content protected by the present utility model does not involve improvements to the internal structure and method either.

[0039] Working principle: When it is necessary to connect the upper oil pipe 110 and the lower oil pipe 160, the upper flange 310 and the lower flange 330 are butted. Then, by using the first positioning groove 350 and the second positioning groove 360 formed inside the upper flange 310 to cooperate with the first positioning protrusion 370 and the second positioning protrusion 380, after the lower flange 330 cannot be rotated anymore, the flange threaded holes 340 can be aligned. Then, the upper annular housing 210 and the lower annular housing 230 are sleeved on the upper flange 310 and the lower flange 330 to make the device have better sealing performance. Then, the upper annular housing 210, the lower annular housing 230, the upper flange 310 and the lower flange 330 are fixed by the bolts 120 and the locking nuts 130 cooperating with the housing threaded holes 260 and the flange threaded holes 340, thus completing the connection work of the upper oil pipe 110 and the lower oil pipe 160.

[0040] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength flange for marine engineering, characterized in that: It comprises an annular component (1), a sealing component (2) and a positioning component (3); in, The annular component (1) comprises an upper oil pipe (110) and a bolt (120); a locking nut (130) is arranged on the circumferential outer wall of the bolt (120); and an asbestos gasket (140) is arranged on the circumferential inner wall of the bolt (120); The sealing assembly (2) comprises an upper annular shell (210) arranged on the circumferential outer wall of the upper oil pipe (110), an outer shell asbestos gasket (220) is arranged below the upper annular shell (210), and a lower annular shell (230) is arranged below the outer shell asbestos gasket (220); The positioning assembly (3) comprises an upper flange (310) arranged on the circumferential inner wall of the upper annular shell (210), a lower flange (330) is arranged on the circumferential inner wall of the lower annular shell (230), a positioning groove (350) is arranged inside the upper flange (310), and a positioning protrusion (370) is arranged above the lower flange (330).

2. The high-strength flange for marine engineering according to claim 1, characterized in that An asbestos gasket 2 (150) is arranged above the locking nut (130), and a lower oil pipe (160) is arranged on the inner circumferential wall of the lower annular housing (230).

3. The high-strength flange for marine engineering according to claim 2, characterized in that The inner circumferential wall of the upper annular shell (210) is provided with an asbestos gasket three (240), the inner circumferential wall of the lower annular shell (230) is provided with an asbestos gasket four (250), and a threaded hole (260) is provided on the top of the upper annular shell (210).

4. The high-strength flange for marine engineering according to claim 3, characterized in that A flange asbestos gasket (320) is arranged below the upper flange (310), and a flange threaded hole (340) is arranged above the upper flange (310).

5. The high-strength flange for marine engineering according to claim 4, characterized in that A second positioning groove (360) is provided inside the upper flange (310), and a second positioning protrusion (380) is provided above the lower flange (330).

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