CN219119353U

CN219119353U - Vibration-resistant double-wall fuel pipe for marine liquefied natural gas

Info

Publication number: CN219119353U
Application number: CN202121335934.2U
Authority: CN
Inventors: 何杰; 吴振翀; 高松
Original assignee: Changzhou Durbo Fluid Technology Co ltd
Current assignee: Changzhou Durbo Fluid Technology Co ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2023-06-02
Anticipated expiration: 2031-06-16

Abstract

The utility model relates to the technical field of marine fuel pipes and discloses a vibration-resistant marine double-wall fuel pipe for liquefied natural gas, which comprises an outer pipe, wherein an inner pipe is arranged in the outer pipe, connecting flanges are symmetrically arranged at the end parts of the outer pipe, a plurality of mounting holes are uniformly formed in the edges of the surfaces of the connecting flanges, a mounting assembly is arranged on the inner wall of the outer pipe, the mounting assembly comprises a strip-shaped groove, the strip-shaped groove is uniformly formed in the inner wall of the outer pipe, a strip-shaped plate is arranged in the strip-shaped groove, and a plurality of rubber bulges are arranged on one side surface of the strip-shaped plate. According to the utility model, the inner pipe is conveniently installed in the outer pipe through the designed installation component, meanwhile, the inner pipe and the outer pipe are firmly connected, the operation is simple and convenient, the working efficiency is improved, the two double-wall fuel pipes are conveniently connected and fixed through the designed limiting component, the operation is simple and easy, and the installation efficiency of workers is improved.

Description

Vibration-resistant double-wall fuel pipe for marine liquefied natural gas

Technical Field

The utility model relates to the technical field of marine fuel pipes, in particular to a vibration-resistant marine double-wall fuel pipe for liquefied natural gas.

Background

The fuel pipe is a pipeline for conveying fuel, and is commonly provided with a petrochemical pipeline and a natural gas pipeline, a great part of the current ship under construction adopts dual-fuel power, and a double-wall type fuel pipeline is mostly adopted when the fuel is conveyed, so that the safety of fuel conveying is higher.

However, when the existing marine double-wall fuel pipe for liquefied natural gas is used, the inner pipe and the outer pipe are relatively inconvenient to connect and fix, the outer pipe and the inner pipe are possibly connected in an insufficiently stable mode, the working efficiency is low, and meanwhile when the two double-arm fuel pipes are connected, the mounting holes are inconvenient to align rapidly, the mounting efficiency is low, and certain limitations exist. Accordingly, a dual wall fuel pipe for marine lng having a shock resistance is provided by those skilled in the art to solve the problems set forth in the background art.

Disclosure of Invention

The utility model aims to provide a vibration-proof marine liquefied natural gas double-wall fuel pipe for solving the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a vibration-proof's marine double-walled fuel pipe for liquefied natural gas, includes the outer tube, the inside of outer tube is provided with the inner tube, the tip symmetry of outer tube is provided with flange, flange's surface edge evenly has seted up a plurality of mounting holes, the inner wall of outer tube is provided with the installation component, the installation component includes the bar groove, the bar groove evenly set up in the inner wall of outer tube, the inside of bar groove is provided with the strip shaped plate, one side surface of strip shaped plate is provided with a plurality of rubber arch, the bellied surface of rubber with the outside surface extrusion laminating of inner tube, a plurality of screw has evenly been seted up to the tip surface edge of outer tube, the inside of screw is provided with fastening bolt, the fixed slot has been seted up to the opposite side surface edge symmetry of strip shaped plate, fastening bolt runs through the inside of screw, just fastening bolt's tip extends to the inside of fixed slot.

As still further aspects of the utility model: the outside of outer tube is provided with spacing subassembly, spacing subassembly includes spacing cutting ferrule A, spacing cutting ferrule B and double-screw bolt, spacing cutting ferrule A with spacing cutting ferrule B symmetry set up in the tip of outer tube, the double-screw bolt evenly set up in spacing cutting ferrule A with one side surface of spacing cutting ferrule B, the double-screw bolt with the mounting hole block is connected, is convenient for connect the double-walled fuel pipe fixedly.

As still further aspects of the utility model: the utility model discloses a spacing cutting ferrule A, spacing cutting ferrule B's one end junction is provided with the rotation axis, spacing cutting ferrule A's the other end has been seted up and has been connected the draw-in groove, spacing cutting ferrule B's the other end is provided with the fixture block, connect the draw-in groove with the fixture block is connected, is convenient for with spacing cutting ferrule A with spacing cutting ferrule B is fixed the outside of outer tube.

As still further aspects of the utility model: the cross section of the strip-shaped plate is arc-shaped, and the length of the strip-shaped plate is equal to the length of the inner wall of the outer tube.

As still further aspects of the utility model: the end surface of the fastening bolt and the opening of the screw hole are positioned on the same horizontal plane.

As still further aspects of the utility model: the longitudinal sections of the limiting clamping sleeve A and the limiting clamping sleeve B are of semi-annular structures, and the areas of the longitudinal sections of the limiting clamping sleeve A and the limiting clamping sleeve B are equal.

As still further aspects of the utility model: the length of the rotating shaft is equal to the width of the end surfaces of the limiting clamping sleeve A and the limiting clamping sleeve B.

As still further aspects of the utility model: the width of the end surface of the clamping block is equal to the width of the opening of the connecting clamping groove, so that the limiting clamping sleeve A and the limiting clamping sleeve B are conveniently connected and fixed.

As still further aspects of the utility model: the diameter of the opening of the mounting hole is two thirds of the width of the end face of the connecting flange, and the diameter of the opening of the mounting hole is equal to the diameter of the end part of the stud, so that the working efficiency of workers is improved.

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

1. the inner tube is convenient to install in the outer tube through the designed installation component, meanwhile, the inner tube and the outer tube are firmly connected, the operation is simple and convenient, and the working efficiency is improved;

2. the limiting component is convenient to connect and fix the two double-wall fuel pipes, is simple and easy to operate, and improves the installation efficiency of workers.

Drawings

FIG. 1 is a schematic perspective view of a dual-wall fuel pipe for marine liquefied natural gas;

FIG. 2 is a schematic side view of a middle spacing ferrule of a dual-wall fuel tube for a marine anti-vibration liquefied natural gas;

FIG. 3 is a schematic view showing a connection structure between an outer pipe and an inner pipe of a dual-wall fuel pipe for anti-vibration marine liquefied natural gas;

fig. 4 is an enlarged schematic view of the area a in fig. 3.

In the figure: 1. an outer tube; 2. an inner tube; 3. a connecting flange; 4. a mounting hole; 5. a limit component; 6. a mounting assembly; 51. limiting cutting ferrule A; 52. limiting clamping sleeve B; 53. a stud; 54. a rotation shaft; 55. a connecting clamping groove; 56. a clamping block; 61. a bar-shaped groove; 62. a strip-shaped plate; 63. a rubber protrusion; 64. a screw hole; 65. a fastening bolt; 66. a fixing groove.

Detailed Description

Referring to fig. 1 to 4, in an embodiment of the present utility model, a vibration-resistant dual-wall fuel pipe for marine lng includes an outer pipe 1, an inner pipe 2 is disposed inside the outer pipe 1, a connecting flange 3 is symmetrically disposed at an end portion of the outer pipe 1, a plurality of mounting holes 4 are uniformly formed at a surface edge of the connecting flange 3, a mounting assembly 6 is disposed on an inner wall of the outer pipe 1, the mounting assembly 6 includes a strip groove 61, the strip groove 61 is uniformly formed on an inner wall of the outer pipe 1, a strip plate 62 is disposed inside the strip groove 61, a cross section of the strip plate 62 is arc-shaped, a length of the strip plate 62 is equal to a length of the inner wall of the outer pipe 1, a plurality of rubber protrusions 63 are disposed on a side surface of the strip plate 62, a surface of the rubber protrusions 63 is pressed against an outer surface of the inner pipe 2, a plurality of screw holes 64 are uniformly formed at an end surface edge of the outer pipe 1, a fixing bolt 65 is disposed inside the screw holes 65, an end surface of the fixing bolt 65 is in a same horizontal plane as an opening of the screw holes 64, a fixing groove 66 is symmetrically formed at an other side surface edge of the screw hole 62, and the fastening bolt 65 penetrates through the inside the screw holes 64, and the end portion of the fixing bolt 65 extends into the fixing groove 66.

In fig. 1 and 2: the outside of outer tube 1 is provided with spacing subassembly 5, spacing subassembly 5 includes spacing cutting ferrule A51, spacing cutting ferrule B52 and double-screw bolt 53, spacing cutting ferrule A51 and spacing cutting ferrule B52 symmetry set up in the tip of outer tube 1, spacing cutting ferrule A51 and spacing cutting ferrule B52's longitudinal section all are semi-annular structure, spacing cutting ferrule A51 equals with spacing cutting ferrule B52's longitudinal section area, the double-screw bolt 53 evenly sets up in spacing cutting ferrule A51 and spacing cutting ferrule B52's one side surface, the double-screw bolt 53 is connected with mounting hole 4 block, the opening part diameter of mounting hole 4 is two thirds of flange 3 terminal surface width, the opening part diameter of mounting hole 4 equals with the tip diameter of double-screw bolt 53, be convenient for improve workman's work efficiency, be convenient for connect the fixed with double-wall fuel pipe, spacing cutting ferrule A51 equals with spacing cutting ferrule B52's one end junction is provided with rotation axis 54, rotation axis 54's length equals spacing cutting ferrule A51 and spacing cutting ferrule B52's tip surface width, connecting card slot 55 has been seted up to spacing cutting ferrule B52's the other end, connecting card slot 55 and fixture 56 is provided with the fixture block 56 to connecting card slot 56 block, be convenient for with the fixed connection at spacing cutting ferrule A1 and spacing cutting ferrule B52's end surface width equals with the outside of spacing cutting ferrule 52.

The working principle of the utility model is as follows: during installation, firstly, the strip-shaped plate 62 is pushed to move towards the inside of the strip-shaped groove 61 until the strip-shaped groove 61 is completely clamped with the strip-shaped plate 62, then the fastening bolt 65 is screwed into the inside of the screw hole 64, so that the fastening bolt 65 penetrates through the inside of the screw hole 64, at the moment, the inner tube 2 is pushed to move towards the inside of the outer tube 1 until the inner tube 2 is completely positioned in the inside of the outer tube 1, then the fastening bolt 65 is continuously rotated, so that the end part of the fastening bolt 65 extends to the inside of the fixing groove 66, and at the same time, the fastening bolt 65 pushes the strip-shaped plate 62 to move, so that the surface of the rubber protrusion 63 is pressed and attached with the outer wall of the inner tube 2, and the inner tube 2 is fixed in the inside of the outer tube 1;

when the double-wall fuel pipe is connected, the limiting clamping sleeve A51 and the limiting clamping sleeve B52 are pulled at first, the limiting clamping sleeve A51 and the limiting clamping sleeve B52 rotate through the rotating shaft 54, at the moment, the limiting clamping sleeve A51 and the limiting clamping sleeve B52 are clamped outside the outer pipe 1, the connecting clamping groove 55 is clamped and connected with the clamping block 56, the limiting clamping sleeve A51 and the limiting clamping sleeve A51 are pushed to move outside the outer pipe 1, the stud 53 moves towards the inside of the mounting hole 4 of the end face of the connecting flange 3 until the stud 53 and the mounting hole 4 are completely clamped, then the nut is fixed at the end of the stud 53, and the double-wall fuel pipe connecting device is simple and easy to operate and improves working efficiency.

The foregoing description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a vibration-resistant's marine double-walled fuel pipe for liquefied natural gas, includes outer tube (1), its characterized in that, the inside of outer tube (1) is provided with inner tube (2), the tip symmetry of outer tube (1) is provided with flange (3), a plurality of mounting holes (4) have evenly been seted up to flange (3)'s surface edge department, the inner wall of outer tube (1) is provided with mounting assembly (6), mounting assembly (6) include bar groove (61), bar groove (61) evenly set up in the inner wall of outer tube (1), the inside of bar groove (61) is provided with bar plate (62), one side surface of bar plate (62) is provided with a plurality of rubber bulge (63), the surface of rubber bulge (63) with the external surface extrusion laminating of inner tube (2), a plurality of screw (64) have evenly been seted up to the tip surface edge department of outer tube (1), the inside of screw (64) is provided with fastening bolt (65), the opposite side surface edge symmetry of bar plate (62) has seted up fixed slot (66), fastening bolt (65) just extend through inside of extending to inside of screw (64).

2. The vibration-resistant marine double-walled fuel pipe for liquefied natural gas according to claim 1, wherein a limiting component (5) is arranged outside the outer pipe (1), the limiting component (5) comprises a limiting clamping sleeve a (51), a limiting clamping sleeve B (52) and a stud (53), the limiting clamping sleeve a (51) and the limiting clamping sleeve B (52) are symmetrically arranged at the end part of the outer pipe (1), the stud (53) is uniformly arranged on one side surface of the limiting clamping sleeve a (51) and one side surface of the limiting clamping sleeve B (52), and the stud (53) is in clamping connection with the mounting hole (4).

3. The vibration-proof marine double-walled fuel pipe for liquefied natural gas as claimed in claim 2, wherein a rotating shaft (54) is arranged at the joint of the limiting clamping sleeve a (51) and one end of the limiting clamping sleeve B (52), a connecting clamping groove (55) is formed in the other end of the limiting clamping sleeve a (51), a clamping block (56) is arranged at the other end of the limiting clamping sleeve B (52), and the connecting clamping groove (55) is in clamping connection with the clamping block (56).

4. A vibration-proof marine lng double-walled fuel pipe according to claim 1, wherein the cross section of the strip plate (62) is arc-shaped, and the length of the strip plate (62) is equal to the length of the inner wall of the outer pipe (1).

5. A vibration-proof marine lng double-walled fuel pipe according to claim 1, characterized in that the end surface of the fastening bolt (65) is at the same level as the opening of the screw hole (64).

6. The vibration-proof marine lng double-walled fuel pipe according to claim 2, wherein the longitudinal sections of the limiting ferrule a (51) and the limiting ferrule B (52) are both semi-annular structures, and the longitudinal section areas of the limiting ferrule a (51) and the limiting ferrule B (52) are equal.

7. A vibration-proof marine lng double-walled fuel pipe according to claim 3, characterized in that the length of the rotation shaft (54) is equal to the end surface widths of the limiting ferrule a (51) and the limiting ferrule B (52).

8. A vibration-proof marine lng double-walled fuel pipe according to claim 3, wherein the end surface width of the clip (56) is equal to the width of the opening of the connecting clip groove (55).

9. The vibration-proof marine lng double-walled fuel pipe according to claim 2, wherein the diameter of the opening of the mounting hole (4) is two-thirds of the width of the end face of the connecting flange (3), and the diameter of the opening of the mounting hole (4) is equal to the diameter of the end of the stud (53).