CN216743403U - Hinge type inert gas shore connection joint for ship - Google Patents
Hinge type inert gas shore connection joint for ship Download PDFInfo
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- CN216743403U CN216743403U CN202122739003.5U CN202122739003U CN216743403U CN 216743403 U CN216743403 U CN 216743403U CN 202122739003 U CN202122739003 U CN 202122739003U CN 216743403 U CN216743403 U CN 216743403U
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Abstract
The invention discloses a hinge type inert gas shore connection joint for a ship, which relates to the field of ship construction and comprises reducing short pipes, a header flange, an outer connection flange, a reducing short pipe connecting support and a blind flange connecting support; when the left end face of the reducing short pipe is in a closed state, the positioning pin is embedded into the positioning hole, the bolt hole in the blind flange is aligned with the bolt hole in the outer flange and fastened through a fastener, and a moving space is reserved on the left side of the fixed hinge shaft by the first fixed hinge hole and the second fixed hinge hole; when the left end face of the reducing short pipe is in an opening state, the positioning pin is separated from the positioning hole, the blind flange rotates to the position below the reducing short pipe, the first movable hinge hole is overlapped with the second movable hinge hole, and a movable hinge shaft penetrates through the first movable hinge hole and the second movable hinge hole. The invention solves the problem that the blind flange cannot be quickly and accurately installed due to inaccurate positioning after being lifted by external force.
Description
Technical Field
The invention relates to the field of ship construction, in particular to an articulated type inert gas shore connection for a ship.
Background
After crude oil or product oil is injected into ships such as oil tankers, and after oil gas and air in a cargo hold are mixed to reach a certain oxygen content, fire or explosion is easy to happen, so that the oil tankers with certain tonnage required by classification society specifications need to be provided with an inert gas system to achieve the purpose of gas replacement.
In order to safely and efficiently connect the external inert gas injection supply pipeline, the ship needs to be provided with a shore connection. The type and specification of the landing joint need to meet the requirements of the OCIMF specification. The type of the marine pipeline is a reducing joint, two ends of the reducing joint are provided with flanges, a header end flange is fixedly connected with a flange of a ship, a blind flange seal is installed when the flange at the outer end does not work, when the ship needs to be connected with a shore to work, a crew needs to dismount the blind flange and then connect an external inert gas supply pipeline to realize communication.
Because the specifications of the common blind flange are large, the size of the common blind flange is hundreds of kilograms, and the size of the common blind flange is hundreds of kilograms, the common blind flange is very inconvenient to disassemble and assemble, and troubles are brought to crews.
Different from a liquid cargo shore connection, in the ship specification requirement, a protruding positioning pin must be arranged at the position of the inert gas shore connection to prevent the oil gas recovery pipeline and the cargo oil pipeline from being connected in error, which brings difficulty to the design of the inert gas shore connection.
Disclosure of Invention
The invention aims to solve the technical problem of providing a hinge type inert gas shore connection for a ship, which is provided with a safe and efficient hinge device, and the hinge device is used for realizing the rotation opening of a blind plate instead of the disassembly. Otherwise, the blind flange is positioned and installed after rotating, and the problem that the blind flange cannot be quickly and accurately installed due to inaccurate positioning after being lifted by means of external force is solved.
In order to achieve the purpose, the invention adopts the following technical scheme:
a hinge type inert gas shore connection for a ship comprises a horizontal reducing short pipe, wherein a header flange is fixedly connected to the right end of the reducing short pipe, and an outer connecting flange is fixedly connected to the left end of the reducing short pipe; a blind flange is arranged on the left side of the outer connecting flange;
the outer side wall of the reducing short pipe is connected with a reducing short pipe connecting support, and the blind flange is connected with a blind flange connecting support; a first fixed hinge hole is formed in the blind flange connecting support, and a second fixed hinge hole corresponding to the first fixed hinge hole is formed in the reducing short pipe connecting support; a fixed hinge shaft passes through the first fixed hinge hole and the second fixed hinge hole; the lengths of the first fixed hinge hole and the second fixed hinge hole in the left and right directions are both larger than the diameter of the fixed hinge shaft;
the reducing short pipe connecting bracket is provided with a movable chain, one end of the movable chain is fixed on the reducing short pipe connecting bracket, and the other end of the movable chain is connected with a movable articulated shaft; the blind flange connecting bracket is also provided with a first movable hinge hole, and the reducing short pipe connecting bracket is also provided with a second movable hinge hole;
a positioning pin which horizontally protrudes towards the left direction is fixed on the left end surface of the outer connecting flange; the blind flange is provided with a positioning hole;
when the left end face of the reducing short pipe is in a closed state, the positioning pin is embedded into the positioning hole, the bolt hole in the blind flange is aligned with the bolt hole in the outer flange and fastened through a fastener, and a moving space is reserved on the left side of the fixed hinge shaft by the first fixed hinge hole and the second fixed hinge hole;
when the left end face of the reducing short pipe is in an opening state, the positioning pin is separated from the positioning hole, the blind flange rotates to the position below the reducing short pipe, the first movable hinge hole is overlapped with the second movable hinge hole, and a movable hinge shaft penetrates through the first movable hinge hole and the second movable hinge hole.
When the left end face of the reducing short pipe is in a closed state, an annular sealing gasket is arranged between the blind flange and the outer connecting flange.
Optionally, the sealing gasket is tightly fixed to the left side surface of the outer flange.
Optionally, the sealing gasket is tightly fixed to the right side surface of the blind flange.
The first movable hinge hole and the second movable hinge hole are both of long-strip round hole structures.
The fixed articulated shaft is of a bolt structure, and a slotted nut is screwed into the threaded end of the fixed articulated shaft.
The reducing short pipe connecting support comprises two parallel first hinged plates.
The blind flange connecting bracket comprises two parallel second hinged plates.
And a reinforcing plate is connected between the two second hinged plates.
A hinge sleeve is arranged between the two second hinge plates, and the first fixed hinge hole is an opening at two ends of the hinge sleeve.
Compared with the prior art, the invention has the advantages that the opening and closing of the blind flange are realized by designing the hinge device, the positioning is accurate, the operation is convenient and quick, the dismounting and the mounting of the blind flange are avoided, and the resources such as a crane and the like are saved. The invention is simple to operate, meets the requirements of relevant specifications such as OCIMF and the like, and can realize seamless butt joint of the inert gas pipeline and an external inert gas supply pipeline. Under the condition that the positioning pin is arranged, the corresponding positioning hole is designed, and the lengths of the first fixing hinge hole and the second fixing hinge hole in the left and right directions are larger than the diameter of the fixing hinge shaft, so that the blind flange can move leftwards to be separated from the positioning pin to be opened, and the standard design of the ship is met.
Drawings
FIG. 1 is a side view of the joint of the present invention in a closed condition;
FIG. 2 is a bottom view of FIG. 1;
FIG. 3 is a side view of a blind flange and blind flange attachment bracket of the present invention;
FIG. 4 is a bottom view of the invention in FIG. 3;
FIG. 5 is a side view of the reducing pipe stub and the connecting bracket for the reducing pipe stub of the present invention;
fig. 6 is a bottom view of the invention in fig. 5.
In the figure: 1. the pipe joint comprises a header flange, 2, reducing short pipes, 3, an outer connecting flange, 4, a blind flange, 5, a sealing gasket, 6, a reducing short pipe connecting support, 7, a blind flange connecting support, 8, a fixed hinge shaft, 9, a first fixed hinge hole, 10, a movable chain, 11, a first movable hinge hole, 12, a second movable hinge hole, 13, a movable hinge shaft, 14, a slotted nut, 15 and a positioning pin.
Detailed Description
The following description of the embodiments of the present invention refers to the accompanying drawings. The description of the orientation in the text is directed to fig. 1, but should not therefore limit the scope of protection.
As shown in fig. 1 to 6, the hinge type inert gas shore connection for the ship comprises a horizontal reducing short pipe 2, wherein a header flange 1 is fixedly connected to the right end of the reducing short pipe 2, and an outer connecting flange 3 is fixedly connected to the left end of the reducing short pipe 2; a blind flange 4 is arranged on the left side of the outer connecting flange 3;
the outer side wall of the reducing short pipe 2 is connected with a reducing short pipe connecting support 6, and the blind flange 4 is connected with a blind flange connecting support 7; a first fixed hinge hole 9 is formed in the blind flange connecting support 7, and a second fixed hinge hole corresponding to the first fixed hinge hole 9 is formed in the reducing short pipe connecting support 6; a fixed hinge shaft 8 is arranged through the first fixed hinge hole 9 and the second fixed hinge hole; the lengths of the first fixed hinge hole 9 and the second fixed hinge hole in the left-right direction are both larger than the diameter of the fixed hinge shaft 8;
the reducing short pipe connecting bracket 6 is provided with a movable chain 10, one end of the movable chain 10 is fixed on the reducing short pipe connecting bracket 6, and the other end of the movable chain 10 is connected with a movable articulated shaft 13; a first movable hinge hole 11 is also formed in the blind flange connecting support 7, and a second movable hinge hole 12 is also formed in the reducing short pipe connecting support 6;
a positioning pin 15 which horizontally protrudes towards the left is fixed on the left end surface of the outer connecting flange 3; the blind flange 4 is provided with a positioning hole;
when the left end face of the reducing short pipe 2 is in a closed state, the positioning pin 15 is embedded into the positioning hole, the bolt hole in the blind flange 4 is aligned with the bolt hole in the outer flange 3 and is fastened through a fastener, and a moving space is reserved on the left side of the fixed hinge shaft 8 by the first fixed hinge hole 9 and the second fixed hinge hole;
when the left end face of the reducing short pipe 2 is in an opening state, the positioning pin 15 is separated from the positioning hole, the blind flange 4 rotates to the position below the reducing short pipe 2, the first movable hinge hole 11 is overlapped with the second movable hinge hole 12, and the movable hinge shaft 13 is arranged through the first movable hinge hole 11 and the second movable hinge hole 12.
When the left end face of the reducing short pipe 2 is in a closed state, an annular sealing gasket 5 is arranged between the blind flange 4 and the outer flange 3.
Optionally, the sealing gasket 5 is tightly fixed on the left side surface of the outer flange 3.
Optionally, the sealing gasket 5 is tightly fixed on the right side surface of the blind flange 4.
The first movable hinge hole 11 and the second movable hinge hole 12 are both long-strip round hole structures.
The fixed hinge shaft 8 is of a bolt structure, and a slotted nut 14 is screwed into the threaded end of the fixed hinge shaft 8.
The reducing short pipe connecting bracket 6 comprises two parallel first hinged plates.
The blind flange joint support 7 comprises two parallel second hinged plates.
And a reinforcing plate is connected between the two second hinged plates.
A hinge sleeve is arranged between the two second hinge plates, and the first fixed hinge hole 9 is an opening at two ends of the hinge sleeve.
One side of the header flange 1 is welded with the reducing short pipe 2, the other side of the header flange is connected with an external inert gas supply pipeline through bolts and nuts, and the reducing short pipe 2 mainly plays a role in changing the caliber, so that conversion when the calibers of the ship inert gas pipeline and the external inert gas supply pipeline are different is realized. The outer flange 3 is mainly used for being connected with an external supply pipeline joint to realize communication, and is in non-leakage plugging with the blind flange 4 through the bolts, the nuts and the sealing gasket 5 when not in work.
When the connector is used, the positioning pin 15 is embedded into the positioning hole when the connector is closed, the bolt hole on the blind flange 4 is aligned with the bolt hole on the outer flange 3 and is fastened through a fastener, and the first fixed hinge hole 9 and the second fixed hinge hole leave a moving space on the left side of the fixed hinge shaft 8;
when the joint is opened, the blind flange 4 is dragged to move leftwards, and because a space is reserved on the left side of the fixed hinge shaft 8, the blind flange 4 moves leftwards, so that a space is reserved, the positioning hole can be separated from the positioning pin 15 through movement, then the blind flange 4 and the blind flange connecting support 7 rotate leftwards around the fixed hinge shaft 8, and after the first movable hinge hole 11 and the second movable hinge hole 12 are overlapped, the blind flange 4 and the blind flange connecting support 7 are embedded into the movable hinge shaft 13 to be fixed. If the blind flange needs to be closed again, the movable hinged shaft 13 is removed, the blind flange 4 and the blind flange connecting support 7 rotate upwards around the fixed hinged shaft 8, the positioning pin 15 is embedded into the positioning hole, and the bolt and the nut are tightened to fix the blind flange 4 and the outer flange 3.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (10)
1. The hinge type inert gas shore connection for the ship is characterized by comprising a horizontal reducing short pipe (2), wherein a header flange (1) is fixedly connected to the right end of the reducing short pipe (2), and an outer connecting flange (3) is fixedly connected to the left end of the reducing short pipe (2); a blind flange (4) is arranged on the left side of the outer connecting flange (3);
the outer side wall of the reducing short pipe (2) is connected with a reducing short pipe connecting support (6), and the blind flange (4) is connected with a blind flange connecting support (7); a first fixed hinge hole (9) is formed in the blind flange connecting support (7), and a second fixed hinge hole corresponding to the first fixed hinge hole (9) is formed in the reducing short pipe connecting support (6); a fixed hinge shaft (8) is arranged through the first fixed hinge hole (9) and the second fixed hinge hole; the lengths of the first fixed hinge hole (9) and the second fixed hinge hole in the left-right direction are both larger than the diameter of the fixed hinge shaft (8);
a movable chain (10) is arranged on the reducing short pipe connecting support (6), one end of the movable chain (10) is fixed on the reducing short pipe connecting support (6), and the other end of the movable chain (10) is connected with a movable hinge shaft (13); a first movable hinge hole (11) is further formed in the blind flange connecting support (7), and a second movable hinge hole (12) is further formed in the reducing short pipe connecting support (6);
a positioning pin (15) which horizontally protrudes towards the left is fixed on the left end surface of the outer connecting flange (3); the blind flange (4) is provided with a positioning hole;
when the left end face of the reducing short pipe (2) is in a closed state, the positioning pin (15) is embedded into the positioning hole, the bolt hole in the blind flange (4) is aligned with the bolt hole in the outer flange (3) and is fastened through a fastener, and a moving space is reserved on the left side of the fixing hinge shaft (8) by the first fixing hinge hole (9) and the second fixing hinge hole;
when reducing nozzle stub (2) left end face is in the open mode, locating pin (15) break away from the locating hole, blind flange (4) rotate to reducing nozzle stub (2) below just first activity hinge hole (11) with second activity hinge hole (12) overlap, pass first activity hinge hole (11) with second activity hinge hole (12) are provided with activity articulated shaft (13).
2. The vessel hinged inerter shore connection according to claim 1, characterized in that an annular sealing gasket (5) is provided between the blind flange (4) and the external flange (3) when the left end face of the reducing pipe spool (2) is in a closed state.
3. The vessel hinged inerting shore connection according to claim 2, characterized in that the sealing gasket (5) is fixed in abutment against the left side of the external flange (3).
4. The hinged inerting shore connection according to claim 2, characterized in that the sealing gasket (5) is fixed in abutment against the right side of the blind flange (4).
5. The vessel hinged inerter shore connection according to claim 1, characterized in that the first living hinge hole (11) and the second living hinge hole (12) are both long round hole-like structures.
6. Vessel hinged inerter landing nipple according to claim 1 or 5, characterized in that the fixed hinge axis (8) is of a bolt construction, a slotted nut (14) being screwed into the threaded end of the fixed hinge axis (8).
7. The vessel hinged inertance port connection according to claim 1, characterized in that the reducing spool connection bracket (6) comprises two parallel first hinged plates.
8. Vessel hinged inertance port joint according to claim 1 or 7, characterized in that the blind flange connection bracket (7) comprises two parallel second hinged plates.
9. The hinged inert gas shore connection of claim 8, wherein a reinforcing plate is connected between said second hinged plates.
10. The hinged inert gas shore connection of a marine vessel according to claim 8, characterized in that a hinge sleeve is provided between the two second hinge plates, and the first fixed hinge hole (9) is an opening at both ends of the hinge sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122739003.5U CN216743403U (en) | 2021-11-10 | 2021-11-10 | Hinge type inert gas shore connection joint for ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122739003.5U CN216743403U (en) | 2021-11-10 | 2021-11-10 | Hinge type inert gas shore connection joint for ship |
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| Publication Number | Publication Date |
|---|---|
| CN216743403U true CN216743403U (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122739003.5U Active CN216743403U (en) | 2021-11-10 | 2021-11-10 | Hinge type inert gas shore connection joint for ship |
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| CN (1) | CN216743403U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115156212A (en) * | 2022-06-23 | 2022-10-11 | 大连东软信息学院 | Marine large-diameter piping system aeroelastic cleaning and air tightness test device |
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2021
- 2021-11-10 CN CN202122739003.5U patent/CN216743403U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115156212A (en) * | 2022-06-23 | 2022-10-11 | 大连东软信息学院 | Marine large-diameter piping system aeroelastic cleaning and air tightness test device |
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