A connecting flange for offshore engineering management

By designing a detachable flange and flange cylinder structure with built-in cleaning ring plate and rubber rod, the problems of flange clogging and inflexible installation in marine engineering are solved, achieving efficient cleaning and multi-specification compatibility.

CN224592888UActive Publication Date: 2026-08-04COSCO (NANTONG) CLAVON SHIP ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
COSCO (NANTONG) CLAVON SHIP ENG CO LTD
Filing Date
2025-07-31
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Traditional flanges are easily clogged by seawater sediments and microbial fouling in marine engineering, which reduces fluid flow efficiency. They also require complete disassembly and cleaning, resulting in high maintenance costs. Furthermore, traditional flanges need to be customized to different sizes, which reduces installation flexibility.

Method used

A detachable flange and flange cylinder structure was designed, with a built-in cleaning ring plate and rubber rod. The cleaning ring plate slides to scrape away dirt, and the detachable flange is adaptable to different equipment pipelines.

Benefits of technology

It effectively reduces the probability of blockage on the inner wall of the flange, simplifies the cleaning process, reduces maintenance costs, and improves the compatibility between the flange and equipment pipelines.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224592888U_ABST
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Abstract

This utility model discloses a connecting flange for marine engineering management, relating to the field of marine engineering management technology. It includes a flange cylinder with flanges on both ends. Multiple tension rods are evenly distributed in a ring along the periphery of the flange cylinder between the two sets of flanges. Inside the flange cylinder are two sets of symmetrically arranged cleaning ring plates, with the outer walls of the two sets of cleaning ring plates connected to the inner wall of the flange cylinder. A vertical cylinder connected to the interior is fixed in the middle of the outer wall of the flange cylinder, and a compression plate is installed inside the vertical cylinder. By moving the two sets of cleaning ring plates inside the flange cylinder, excessive dirt adheres to the inner wall of the flange cylinder, effectively reducing the probability of blockage. Furthermore, the flanges and flange cylinder are detachably connected, allowing for adaptation to different equipment and pipelines. This device solves the problems of dirt easily adhering to the inner wall of the flange, causing blockage, and the inability to disassemble the flange and adapt to different pipeline systems.
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Description

Technical Field

[0001] This utility model belongs to the field of marine engineering management technology, and specifically relates to a connecting flange used in marine engineering management. Background Technology

[0002] Constructing and operating various offshore facilities (such as fixed platforms, floating production storage and offloading (PSO) units, subsea pipeline systems, offshore wind power foundations, and marine observation equipment) in the vast and harsh marine environment is an extremely challenging systems engineering project. The safe, reliable, and long-term operation of these facilities is the core objective of marine engineering management. Connecting flanges, as one of the most basic and widely used key connecting components in marine engineering, play an indispensable role, and their performance and management level directly affect the integrity and safety of the entire engineering system.

[0003] However, when traditional flanges are used in marine engineering for extended periods, sediments, microorganisms (such as barnacles and algae), and minerals in seawater easily adhere to the inner wall of the flange, forming hard scale. This scale gradually clogs the inner diameter of the pipe, reducing fluid flow efficiency. Furthermore, conventional flanges require complete disassembly for cleaning, resulting in high maintenance costs and complex operations. Additionally, marine engineering involves multi-specification piping systems (such as oil pipelines and seawater cooling pipes), requiring traditional flanges to be custom-made to different sizes, leading to redundant inventory and low installation flexibility. This phenomenon has become a problem that urgently needs to be solved by those in the field. Utility Model Content

[0004] The purpose of this invention is to provide a connecting flange for marine engineering management, which addresses existing devices by using two sets of cleaning ring plates that move inside the flange cylinder to prevent excessive dirt from adhering to the inner wall of the flange cylinder, thereby effectively reducing the probability of blockage on the inner wall of the flange cylinder. At the same time, the flange and the flange cylinder are detachably connected, which can be adapted to different equipment and pipelines, thus solving the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a connecting flange for marine engineering management, including a flange cylinder, flanges on both ends of the flange cylinder, multiple tension rods evenly distributed in a ring along the periphery of the flange cylinder between the two sets of flanges, two sets of symmetrically arranged cleaning ring plates inside the flange cylinder, and the outer walls of the two sets of cleaning ring plates connected to the inner wall of the flange cylinder, a vertical cylinder connected to the interior of the flange cylinder is fixed in the middle of the outer wall of the flange cylinder, a compression plate is provided inside the vertical cylinder, and a sliding ring plate of the same height as the compression plate is sleeved on the outer wall of the vertical cylinder.

[0006] This utility model further illustrates that the inner walls at both ends of the flange cylinder are provided with insertion grooves, and the end face of the flange plate near the flange cylinder is fixed with an insertion ring plate located in the insertion groove.

[0007] The present invention further explains that a sealing groove is provided on the outer wall of the plug-in ring plate, and an annular groove is provided on the inner wall of the plug-in groove at the position corresponding to the sealing groove. A sealing ring is provided inside the sealing groove. Grooves are provided on the end face of the flange opposite to the flange cylinder, and a sealing gasket is provided inside the groove.

[0008] This utility model further explains that a tension hole is provided through the side wall of the flange at the position of each set of tension rods. Multiple assembly grooves are provided on the end face of the flange opposite to the flange cylinder, which are respectively connected to the tension hole. The threaded parts of both ends of the tension rod passing through the tension hole are all set in the assembly groove. A nut screwed on the tension rod is provided inside the assembly groove.

[0009] This utility model further illustrates that two sets of symmetrically arranged curved columns are fixed on the inner wall of the flange cylinder, and the end faces of the curved columns inside the flange cylinder are provided with curved holes that communicate with the inside of the vertical cylinder.

[0010] The present invention further explains that a rubber rod is provided in the curved part inside the curved hole. One end of the rubber rod is connected to the cleaning ring plate by a bolt, and a vertical rod that is bolted to the upper end of the rubber rod is fixed thereon.

[0011] The present invention further explains that an adjustment port is provided on the surface of the vertical cylinder, and an adjustment block is provided inside the adjustment port by bolts to the compression plate and the sliding ring plate. A spring is provided at the lower end of the sliding ring plate to abut against the surface of the flange cylinder.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are: This utility model,

[0013] (1) By controlling the two sets of cleaning ring plates to move in opposite directions inside the flange cylinder, the cleaning ring plates will slide along the inner wall of the flange cylinder, thereby scraping off the dirt attached to the inner wall of the flange cylinder, thus avoiding excessive dirt from adhering to the inner wall of the flange cylinder, which can effectively reduce the probability of blockage of the inner wall of the flange cylinder.

[0014] (2) By setting the flange and the flange tube to be detachable, the flange can be disassembled at the end of the flange tube. This allows flanges of different sizes to be installed at both ends of the flange tube, so that the flange tube and the flange can be adapted to different equipment and pipelines. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a structural diagram of the cleaning ring plate in this utility model;

[0019] Figure 3 This is a structural diagram of the flange and sealing gasket ring in this utility model;

[0020] Figure 4 This is a structural diagram of the flange and sealing ring in this utility model;

[0021] Figure 5 This is a cross-sectional view of the overall structure of this utility model;

[0022] Figure 6 This is a cross-sectional view of the flange cylinder in this utility model.

[0023] In the diagram: 1. Flange cylinder; 101. Insert groove; 102. Ring groove; 103. Vertical cylinder; 104. Adjustment port; 105. Bending column; 106. Bending hole; 2. Flange; 201. Tension rod; 202. Groove; 203. Sealing gasket ring; 204. Nut; 205. Assembly groove; 206. Insert ring plate; 207. Sealing groove; 208. Sealing ring; 209. Tension hole; 3. Cleaning ring plate; 301. Compression plate; 302. Adjusting block; 303. Rubber rod; 304. Vertical rod; 305. Sliding ring plate; 306. Spring. Detailed Implementation

[0024] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] Please see Figure 1-6 The present invention provides a technical solution: a connecting flange for marine engineering management, including a flange cylinder 1, flanges 2 on both ends of the flange cylinder 1, multiple tension rods 201 evenly distributed in a ring along the periphery of the flange cylinder 1 between the two sets of flanges 2, two sets of symmetrically arranged cleaning ring plates 3 inside the flange cylinder 1, and the outer walls of the two sets of cleaning ring plates 3 connected to the inner wall of the flange cylinder 1, a vertical cylinder 103 connected to the interior of the flange cylinder 1 fixed in the middle of the outer wall of the flange cylinder 1, a compression plate 301 inside the vertical cylinder 103, and a sliding ring plate 305 of the same height as the compression plate 301 sleeved on the outer wall of the vertical cylinder 103;

[0026] With the above structure, after the flange cylinder 1 and flange 2 are installed on the corresponding equipment pipeline, when the entire equipment pipeline needs to be inspected, the two sets of cleaning ring plates 3 can be controlled to move in opposite directions inside the flange cylinder 1. As a result, the cleaning ring plates 3 will slide along the inner wall of the flange cylinder 1, thereby scraping off the dirt attached to the inner wall of the flange cylinder 1. This prevents too much dirt from adhering to the inner wall of the flange cylinder 1 and can effectively reduce the probability of blockage of the inner wall of the flange cylinder 1.

[0027] Meanwhile, the flange 2 and the flange cylinder 1 are connected in a detachable manner. Therefore, the flange 2 can be disassembled at the end of the flange cylinder 1, so that flanges 2 of different sizes can be installed at both ends of the flange cylinder 1, thereby enabling the flange cylinder 1 and the flange 2 to be adapted to different equipment and pipelines.

[0028] When it is necessary to control the movement of the cleaning ring plate 3 inside the flange cylinder 1, the sliding ring plate 305 can be controlled to move downward along the surface of the vertical cylinder 103. In turn, the sliding ring plate 305 will synchronously drive the compression plate 301 to move downward inside the vertical cylinder 103. Then, the compression plate 301 will control the cleaning ring plate 3 to slide in the flange cylinder 1 through a series of structural controls.

[0029] The inner walls of both ends of the flange cylinder 1 are provided with insertion grooves 101. The end face of the flange 2 near the flange cylinder 1 is fixed with an insertion ring plate 206 in the insertion groove 101. The outer wall of the insertion ring plate 206 is provided with a sealing groove 207. The inner wall of the insertion groove 101 is provided with an annular groove 102 at the position corresponding to the sealing groove 207. A sealing ring 208 is provided inside the sealing groove 207. The end face of the flange 2 opposite to the flange cylinder 1 is provided with a groove 202. A sealing gasket ring 203 is provided inside the groove 202.

[0030] With the above-described structure, when the flange 2 is installed at the end of the flange cylinder 1, the insertion ring plate 206 fixed on the end face of the flange 2 can be inserted into the corresponding insertion groove 101. As a result, the sealing ring 208 on the surface of the insertion ring plate 206 will come into contact with the inner wall of the flange cylinder 1, thereby sealing the gap between the flange cylinder 1 and the insertion ring plate 206. At the same time, after the flange 2 and the flange cylinder 1 are installed on the equipment pipeline, the sealing gasket ring 203 on the end face of the flange 2 will abut against the end face of the equipment pipeline, thereby sealing the gap between the flange 2 and the equipment pipeline.

[0031] A tension hole 209 is provided through the side wall of the flange 2 at the position corresponding to each set of tension rods 201. A plurality of assembly grooves 205 are provided on the end face of the flange 2 opposite to the flange cylinder 1, which are respectively connected to the tension hole 209. The threaded parts of the tension rods 201 passing through the tension hole 209 at both ends are provided in the assembly grooves 205. Nuts 204 screwed on the tension rods 201 are provided inside the assembly grooves 205.

[0032] With the above-described structure, after the two sets of flanges 2 are installed at the end of the flange cylinder 1, the two ends of the tension rod 201 are passed through the corresponding tension holes 209, and the threaded parts at both ends of the tension rod 201 are respectively in the corresponding assembly grooves 205. Then, the nuts 204 are screwed onto the threaded parts at both ends of the tension rod 201 and tightened. In this way, the two sets of flanges 2 are pulled by multiple tension rods 201, so that the flanges 2 are stably installed at the end of the flange cylinder 1, ensuring the stability of the flange installation.

[0033] Two sets of symmetrically arranged curved columns 105 are fixed on the inner wall of the flange cylinder 1. Each curved column 105 has a curved hole 106 that communicates with the inside of the vertical cylinder 103 on its end face inside the flange cylinder 1. A rubber rod 303 is provided in the curved part inside the curved hole 106. One end of the rubber rod 303 is connected to the cleaning ring plate 3 by bolts. A vertical rod 304 that is bolted to the upper end of the rubber rod 303 is fixed to the upper end of the vertical rod 304. An adjustment port 104 is provided on the surface of the vertical cylinder 103. An adjustment block 302 that is bolted to the compression plate 301 and the sliding ring plate 305 is provided inside the adjustment port 104. A spring 306 that abuts against the surface of the flange cylinder 1 is provided at the lower end of the sliding ring plate 305.

[0034] With the above-described structure, when controlling the movement of the cleaning ring plate 3, the sliding ring plate 305 moves downward in the vertical cylinder 103 directly through the adjusting block 302 by driving the compression plate 301. The compression plate 301 then presses the vertical rod 304 into the vertical part of the curved hole 106. The vertical rod 304 pushes the rubber rod 303 to move at the curved part of the curved hole 106, and pushes the cleaning ring plate 3 to slide along the inner wall of the flange cylinder 1. This allows the cleaning ring plate 3 to scrape off the dirt attached to the inner wall of the flange cylinder 1. At the same time, when the cleaning ring plate 3 moves downward, it compresses the spring 306. Therefore, when the operator releases the sliding ring plate 305, the spring 306 will return to its original position and push the sliding ring plate 305 upward. Thus, the sliding ring plate 305 will synchronously drive the cleaning ring plate 3 to return to its initial position through a series of structures.

[0035] It should be noted that the plates at both ends of the spring 306 are connected to the outer wall of the flange cylinder 1 and the end face of the sliding ring plate 305 by bolts, so when the spring 306 is compressed and reset, it can prevent the bottom of the spring 306 from springing up. In addition, the rubber rod 303 is in the bending hole 106 and is in piston motion, so the rubber rod 303 and the bending hole 106 can achieve a sealing effect.

[0036] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A connecting flange for marine engineering management, comprising a flange sleeve (1), characterized in that: The flange cylinder (1) is provided with flanges (2) on both ends. There are multiple tension rods (201) evenly distributed in a ring along the periphery of the flange cylinder (1) between the two sets of flanges (2). There are two sets of cleaning ring plates (3) symmetrically arranged inside the flange cylinder (1). The outer walls of the two sets of cleaning ring plates (3) are connected to the inner wall of the flange cylinder (1). A vertical cylinder (103) connected to the interior is fixed in the middle of the outer wall of the flange cylinder (1). A compression plate (301) is provided inside the vertical cylinder (103). A sliding ring plate (305) of the same height as the compression plate (301) is sleeved on the outer wall of the vertical cylinder (103).

2. A connecting flange for marine engineering management according to claim 1, characterized in that: The inner walls at both ends of the flange cylinder (1) are provided with insertion grooves (101), and the end face of the flange (2) near the flange cylinder (1) is fixed with an insertion ring plate (206) in the insertion groove (101).

3. A connecting flange for marine engineering management according to claim 2, characterized in that: The outer wall of the plug-in ring plate (206) is provided with a sealing groove (207), and the inner wall of the plug-in groove (101) is provided with an annular groove (102) at the position corresponding to the sealing groove (207). A sealing ring (208) is provided inside the sealing groove (207) and is located in the annular groove (102). The flange (2) is provided with grooves (202) on the end face opposite to the flange cylinder (1), and a sealing gasket (203) is provided inside the grooves (202).

4. A connecting flange for marine engineering management according to claim 1, characterized in that: The flange (2) has a tension hole (209) through it at the position of each tension rod (201) on its side wall. The flange (2) has multiple assembly slots (205) on its end face opposite to the flange cylinder (1), which are connected to the tension holes (209). The threaded portions of the tension rods (201) passing through the tension holes (209) are all set in the assembly slots (205). The assembly slots (205) are all provided with nuts (204) screwed on the tension rods (201).

5. A connecting flange for marine engineering management according to claim 1, characterized in that: Two sets of symmetrically arranged curved columns (105) are fixed on the inner wall of the flange cylinder (1). The end face of the curved column (105) inside the flange cylinder (1) is provided with a curved hole (106) that communicates with the inside of the vertical cylinder (103).

6. A connecting flange for marine engineering management according to claim 5, characterized in that: A rubber rod (303) is provided in the bent part inside the bent hole (106). One end of the rubber rod (303) is connected to the cleaning ring plate (3) by bolts. A vertical rod (304) is fixed to the upper end of the rubber rod (303) and bolted to the compression plate (301).

7. A connecting flange for marine engineering management according to claim 6, characterized in that: The vertical cylinder (103) has an adjustment port (104) on its surface. Inside the adjustment port (104) is an adjustment block (302) that is connected to the compression plate (301) and the sliding ring plate (305) by bolts. The lower end of the sliding ring plate (305) is provided with a spring (306) that abuts against the surface of the flange cylinder (1).