CN217977905U

CN217977905U - Double-layer pipe flange of marine gas supply system

Info

Publication number: CN217977905U
Application number: CN202221846583.6U
Authority: CN
Inventors: 戴劲松
Original assignee: Jingjiang Fuyuan Ship Fittings Co ltd
Current assignee: Jingjiang Fuyuan Ship Fittings Co ltd
Priority date: 2022-07-18
Filing date: 2022-07-18
Publication date: 2022-12-06
Anticipated expiration: 2032-07-18

Abstract

The utility model discloses a marine gas supply system double-deck pipe flange, include: outer flange, inlayer flange and double-layer tube outer tube, first circular recess has been seted up to the inner of outer flange, the inner of first circular recess is provided with fan-shaped opening, the lower extreme of fan-shaped opening is provided with the second circular recess, the inner of outer flange is provided with limit structure, inlayer flange fixed mounting is in the inner of outer flange, the outer end of inlayer flange is provided with the ventilation hole, the inner at outer flange is installed to the outer end block of double-layer tube outer tube, the inner of double-layer tube outer tube is provided with the double-layer tube inner tube, the inseparable block in the inner of inner flange of double-layer tube inner tube. This marine gas supply system double-deck pipe flange, gas mobility is good, has reduced the installation accuracy requirement of combination flange, increases ventilation cooling's effect, can prevent to produce aversion or dislocation when the butt joint.

Description

Double-layer pipe flange of marine gas supply system

Technical Field

The utility model relates to a relevant technical field of boats and ships gas supply system pipe connection specifically is a marine gas supply system double-deck pipe flange.

Background

The pipeline in the ship pipeline system is usually connected and installed by using flanges, the working principle of the pipeline system is that two pipelines are respectively fixed on one flange plate, a sealing gasket is arranged between the two flange plates, the two flange plates are connected by bolts, the two flange plates move towards each other respectively by the pretightening force of the bolts, the two pipelines are butted together, and the sealing gasket is pressed simultaneously to seal the joint. Double-layer pipes generally include an outer layer pipe and an inner layer pipe coaxially arranged, the inner layer pipe is mainly used for transporting dangerous gas, and part of the gas can escape from the inner layer pipe to a space between the outer layer pipe and the inner layer pipe.

However, when the flange connection is applied to the butt joint of the double-layer pipes, the installation accuracy and the sealing requirement of the double-layer pipe flange of the conventional marine gas supply system are high, the problems that the sealing performance of the butt joint part is poor and the gas fluidity between the inner-layer pipe and the outer-layer pipe is poor due to installation errors and the like often occur in the conventional flange, further dangerous gas leakage is easy to occur, and the safety of pipeline connection is reduced.

SUMMERY OF THE UTILITY MODEL

To solve the problems raised in the background art described above. The utility model provides a marine gas supply system double-layer pipe flange has that gas flow nature is good, has reduced the installation accuracy requirement of combination flange, increases ventilation cooling's effect, produces the characteristics of aversion or dislocation when can preventing to dock.

In order to achieve the above purpose, the utility model provides a following technical scheme: a double-pipe flange for a marine gas supply system, comprising: the inner end of the outer flange is provided with a first circular groove, the inner end of the first circular groove is provided with a fan-shaped through hole, the lower end of the fan-shaped through hole is provided with a second circular groove, and the inner end of the outer flange is provided with a limiting structure;

the inner flange is fixedly arranged at the inner end of the outer flange, and the outer end of the inner flange is provided with a vent hole;

the outer end of the double-layer pipe outer pipe is clamped at the inner end of the outer-layer flange, the inner end of the double-layer pipe outer pipe is provided with a double-layer pipe inner pipe, and the inner end of the double-layer pipe inner pipe is tightly clamped at the inner end of the inner-layer flange.

By adopting the technical scheme, the gas fluidity is good, the mounting precision requirement of the combined flange is reduced, the ventilation and heat dissipation effects are increased, and the displacement or dislocation generated in the butt joint process can be prevented.

As the utility model discloses a preferred technical scheme, fan-shaped opening sets up in the inner of outer flange, the inner at outer flange is seted up to the second circular recess, the sealing washer is installed to the inner block of the inner of outer flange.

By adopting the technical scheme, the fan-shaped through opening is formed in the inner end of the outer-layer flange, so that the heat dissipation effect is improved.

As the utility model discloses a preferred technical scheme, limit structure includes bolt and rubber pad, bolt threaded connection is in the inner of outer flange.

Through adopting above-mentioned technical scheme, because bolt threaded connection is in the inner of outer flange, it is convenient to carry on spacingly to the double tube outer tube.

As the utility model discloses an optimized technical scheme, rubber pad fixed mounting is in the inner of bolt, the rubber pad closely laminates the outer end at the double-deck tub of outer tube.

By adopting the technical scheme, the rubber pad is tightly attached to the outer end of the outer pipe of the double-layer pipe, so that the effect of avoiding dislocation movement is achieved.

As the utility model discloses a preferred technical scheme, the inner threaded connection of outer flange has the fastening to tie, the fastening is tied and is located the outside of first circular recess.

Through adopting above-mentioned technical scheme, because the inner threaded connection of outer flange has the fastening bolt, fix outer flange.

As the utility model discloses an optimized technical scheme, outer flange and inlayer flange all are the round annular structure, the ventilation hole sets up the outer end at the inlayer flange.

Through adopting above-mentioned technical scheme, because the ventilation hole sets up the outer end at the inlayer flange, increased gaseous mobility.

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

1. the double-layer pipe is provided with the inner-layer flange and the vent hole, the vent hole is formed between the inner-layer flange and the outer-layer flange, and the vent hole can increase the gas fluidity between the outer pipe of the double-layer pipe and the inner pipe of the double-layer pipe, so that the leakage of dangerous gas is avoided, the safety of pipeline connection is improved, and the requirement on the installation precision of the combined flange is reduced;

2. the fan-shaped through hole is connected between the first circular groove and the second circular groove, so that heat dissipation is facilitated, and the ventilation and heat dissipation effects are improved;

3. be provided with bolt and rubber pad, when carrying out the butt joint, can utilize the bolt to closely laminate the rubber pad on the outer wall of double-deck pipe outer tube earlier, then utilize the fastening to tie outer flange fixed firm, produce aversion or dislocation when preventing to dock.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a schematic view of the front view cutting connection structure of the present invention;

FIG. 2 is a side view of the outer flange of the present invention;

FIG. 3 is a front view of the cutting structure of the present invention;

fig. 4 is a schematic view of the structure of the outer flange of the present invention.

In the figure: 1. an outer flange; 2. an inner flange; 3. a double-layer tube outer tube; 4. a first circular groove; 5. a fan-shaped through opening; 6. a second circular groove; 7. a seal ring; 8. a vent hole; 9. an inner tube of the double-layer tube; 10. fastening bolts; 11. a bolt; 12. a rubber cushion.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: a double-layer pipe flange of a marine gas supply system comprises an outer layer flange 1, an inner layer flange 2, a double-layer pipe outer pipe 3, a first circular groove 4, a fan-shaped through hole 5, a second circular groove 6, a sealing ring 7, a vent hole 8, a double-layer pipe inner pipe 9, a fastening bolt 10, a bolt 11 and a rubber pad 12, as shown in figures 1, 2, 3 and 4, when the double-layer pipe flange of the marine gas supply system is used, a pipeline to be connected in the marine pipeline system is connected and installed by the outer layer flange 1 and the inner layer flange 2, during installation, two joints of the pipeline to be connected in the marine pipeline are respectively connected and fixed with the outer layer flange 1 and the inner layer flange 2, during connection, the inner end of the double-layer pipe inner pipe 9 is firstly clamped with the outer layer flange 1, when the inner end of the double-layer pipe inner pipe 9 is matched and clamped with the mounting groove of the outer layer flange 1, the inner end of the double-layer pipe outer pipe 3 is also clamped to the inner end of the outer layer flange 1 under the driving of the double-layer pipe inner pipe 9, and the inner end of the double-layer flange 9 is clamped to the inner end of the inner pipe 2;

as shown in fig. 1, 2, 3 and 4, in order to prevent the outer pipe 3 and the inner pipe 9 of the double-layer pipe from being dislocated during butt joint, the bolts 11 may be rotated inward, the rubber pads 12 fixedly mounted at the inner ends of the bolts 11 are driven by the bolts 11 to move inward to clamp and limit the outer pipe 3 of the double-layer pipe, the four bolts 11 are all adjusted to the same tightness, so that the outer pipe 3 of the double-layer pipe can be limited, the outer pipe 3 of the double-layer pipe and the inner pipe 9 of the double-layer pipe are prevented from being shifted or dislocated during butt joint, then the left and right outer flanges 1 are screwed and fixed by the fastening bolts 10, and the sealing rings 7 arranged at the inner ends of the outer flanges 1 have a sealing effect;

as shown in fig. 1, 2 and 3, the setting of ventilation hole 8 can increase the gas mobility between double-layer tube outer tube 3 and double-layer tube inner tube 9, thereby avoiding the leakage of dangerous gas, improving the safety of pipeline connection, reducing the installation accuracy requirement of the composite flange, and the inner end of outer flange 1 is provided with first circular groove 4, fan-shaped opening 5 and second circular groove 6, thereby increasing the ventilation and heat dissipation effect of outer flange 1.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a marine gas supply system double-deck pipe flange which characterized in that: the method comprises the following steps:

the flange structure comprises an outer-layer flange (1), wherein a first circular groove (4) is formed in the inner end of the outer-layer flange (1), a fan-shaped through hole (5) is formed in the inner end of the first circular groove (4), a second circular groove (6) is formed in the lower end of the fan-shaped through hole (5), and a limiting structure is arranged in the inner end of the outer-layer flange (1);

the inner flange (2) is fixedly arranged at the inner end of the outer flange (1), and a vent hole (8) is formed in the outer end of the inner flange (2);

the double-layer pipe comprises a double-layer pipe outer pipe (3), wherein the outer end of the double-layer pipe outer pipe (3) is clamped at the inner end of the outer flange (1), a double-layer pipe inner pipe (9) is arranged at the inner end of the double-layer pipe outer pipe (3), and the inner end of the double-layer pipe inner pipe (9) is tightly clamped at the inner end of the inner flange (2).

2. A double-deck pipe flange for a marine gas supply system according to claim 1, wherein: the inner of outer flange (1) is seted up in fan-shaped opening (5), the inner of outer flange (1) is seted up in second circular recess (6), sealing washer (7) are installed to the inner block of the inner of outer flange (1).

3. A double-deck pipe flange for a marine gas supply system according to claim 1, wherein: the limiting structure comprises a bolt (11) and a rubber pad (12), and the bolt (11) is in threaded connection with the inner end of the outer-layer flange (1).

4. A double-deck pipe flange for a marine gas supply system according to claim 3, wherein: the rubber pad (12) is fixedly arranged at the inner end of the bolt (11), and the rubber pad (12) is tightly attached to the outer end of the double-layer pipe outer pipe (3).

5. A double-deck pipe flange for a marine gas supply system according to claim 1, wherein: the inner end of the outer layer flange (1) is in threaded connection with a fastening bolt (10), and the fastening bolt (10) is located on the outer side of the first circular groove (4).

6. A double-deck pipe flange for a marine gas supply system according to claim 1, wherein: outer flange (1) and inlayer flange (2) all are ring structure, ventilation hole (8) set up the outer end at inlayer flange (2).