CN210623859U - Double-wall pipe flange for marine gas pipeline - Google Patents
Double-wall pipe flange for marine gas pipeline Download PDFInfo
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- CN210623859U CN210623859U CN201921332969.3U CN201921332969U CN210623859U CN 210623859 U CN210623859 U CN 210623859U CN 201921332969 U CN201921332969 U CN 201921332969U CN 210623859 U CN210623859 U CN 210623859U
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- gas pipeline
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Abstract
The utility model relates to a double-wall pipe flange of a marine gas pipeline, which comprises a first connecting flange, a second connecting flange and a metal corrugated pipe, wherein the metal corrugated pipe is respectively connected with the first connecting flange and the second connecting flange through connecting pipes arranged at the two ends, an outer pipe connecting area, a transition area and an inner pipe connecting area are sequentially arranged on the connecting flange I and the connecting flange II from outside to inside, an outer pipe convex shoulder matched with the connecting pipe is arranged on the outer pipe connecting area of the inner end surface of the connecting flange I and the connecting flange II, the convex shoulder of the outer pipe is fixedly connected with the connecting pipe at the corresponding end, and a sealing gasket is arranged at the joint, an inner flow pipe is arranged on the inner pipe connecting area at the inner end of the first connecting flange, a plurality of vent holes are uniformly arranged on the transition areas of the first connecting flange and the second connecting flange, outer pipe fixing grooves are respectively arranged in outer pipe connecting areas of the outer end faces of the first connecting flange and the second connecting flange.
Description
Technical Field
The utility model relates to a marine gas pipeline double-walled pipe flange specifically is used for cargo ship gas pipeline.
Background
The common ballast tank filter screen is installed in parallel with the trap opening and is limited by the appearance of the trap opening of the ballast trap, and the area of the filter screen is smaller than the diameter sectional area of the ballast pipe, so that the problem that the stress of a single area of the filter screen is large when the ballast operation is carried out for a long time is caused.
SUMMERY OF THE UTILITY MODEL
Problem to prior art existence, the utility model provides a marine gas pipeline double-walled pipe flange has reliable and stable compensation performance, and simple to operate can improve work efficiency.
The utility model provides a technical scheme of above technical problem: the double-wall pipe flange for the marine gas pipeline comprises a first connecting flange, a second connecting flange and a metal corrugated pipe, wherein the metal corrugated pipe is respectively connected with the first connecting flange and the second connecting flange through connecting pipes arranged at two ends, an outer pipe connecting area, a transition area and an inner pipe connecting area are sequentially arranged on the first connecting flange and the second connecting flange from outside to inside, an outer pipe convex shoulder matched with the connecting pipes is arranged on the outer pipe connecting area of the inner end surface of the first connecting flange and the second connecting flange, the outer pipe convex shoulder is fixedly connected with the connecting pipes at the corresponding ends, a sealing gasket is arranged at the connecting part of the outer pipe convex shoulder and the connecting pipes, an inner flow pipe is arranged on the inner pipe connecting area of the inner end of the first connecting flange and penetrates through the corrugated pipe to be fixedly connected with an inner pipe fixing groove arranged on the inner pipe connecting area of the inner end surface, and a plurality of vent holes are uniformly formed in the transition areas of the first connecting flange and the second connecting flange, the positions of the vent holes are overlapped, and outer pipe fixing grooves are respectively formed in the outer pipe connecting areas of the outer end faces of the first connecting flange and the second connecting flange.
The utility model discloses the technical scheme who further injects does:
an inner pipe convex shoulder with a circular ring structure is arranged on the inner pipe connecting area of the outer end faces of the first connecting flange and the second connecting flange, and the inner pipe convex shoulder and the outer pipe convex shoulder are arranged in the opposite direction.
The outer ends of the outer pipe connecting areas of the first connecting flange and the second connecting flange are respectively provided with a fixing area, the fixing areas are respectively and uniformly provided with a plurality of connecting holes, the connecting holes are overlapped, and the first connecting flange and the second connecting flange sequentially penetrate through the connecting holes in the first connecting flange and the second connecting flange through pull rods and are fixed in a matched mode through nuts.
The number of the pull rods is 2-4, and the number of the connecting holes is twice of that of the pull rods.
The corrugated pipe and the connecting pipes arranged at the two ends of the corrugated pipe are of an integrated structure.
The inner and outer surfaces of the inner flow tube and the inner surface of the corrugated tube are uniformly coated with epoxy resin coatings.
The utility model has the advantages that: the utility model discloses simple structure, can also keep reliable and stable compensation performance, high durability and convenient installation, the efficiency of construction and quality have been improved simultaneously, guarantee the safe operation of gas pipeline, the connecting pipe at bellows both ends is provided with seal ring between the outer tube convex shoulder junction with flange one and flange two respectively, improve holistic leakproofness, it is fixed with inner tube and inner tube convex shoulder threaded connection during the connection, the outer tube passes through the cutting ferrule and connects in fixing the fixed slot on flange, so not only sealing performance is good, and dismantle simple to operate, simultaneously also more stable safety, can avoid factors such as vibrations to make the body drop, and long service life is prolonged.
A circle of vent holes are formed in the transition areas of the first connecting flange and the second connecting flange, so that the flanges can be connected with the inner pipe and the outer pipe simultaneously, and the space communication between the inner pipe and the outer pipe can be kept; the interior external surface of interior flow tube and the even coating of internal surface of bellows have the epoxy coating, and this epoxy coating has reduced the frictional resistance in the pipeline, has improved the mobility of medium, has improved the transport efficiency of pipeline, plays the guard action to the pipeline inner wall simultaneously, has the anticorrosion, guarantees the purity of transport medium.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a left side view of the present invention.
Detailed Description
Example 1
The embodiment provides a double-wall pipe flange for a marine gas pipeline, which has a structure shown in figure 1-2 and comprises a first connecting flange 1, a second connecting flange 2 and a metal corrugated pipe 3, wherein the metal corrugated pipe 3 is respectively connected with the first connecting flange 1 and the second connecting flange 2 through connecting pipes 15 arranged at two ends, the corrugated pipe and the connecting pipes arranged at two ends of the corrugated pipe are of an integrated structure, a fixing area 5, an outer pipe connecting area 6, a transition area 7 and an inner pipe connecting area 8 are sequentially arranged on the first connecting flange and the second connecting flange from outside to inside, outer pipe shoulders 9 matched with the connecting pipes are respectively arranged on the outer pipe connecting areas of the inner end surfaces of the first connecting flange 1 and the second connecting flange, the outer pipe shoulders 9 are fixedly connected with the connecting pipes 15 at the corresponding ends, a sealing gasket is arranged at the connecting positions of the outer pipe shoulders and the connecting pipes, an inner flow pipe is arranged on the inner pipe, the inner flow pipe penetrates through a corrugated pipe to be fixedly connected with an inner pipe fixing groove arranged on an inner pipe connecting area of an inner end face of a connecting flange II, the inner surface and the outer surface of the inner flow pipe and the inner surface of the corrugated pipe are uniformly coated with epoxy resin coatings, 16 vent holes 11 are uniformly arranged on transition areas of the connecting flange I and the connecting flange II and are overlapped in position, outer pipe fixing grooves 12 are respectively arranged on outer pipe connecting areas of the outer end faces of the connecting flange I and the connecting flange II, an inner pipe convex shoulder 10 with a circular ring structure is arranged on the inner pipe connecting area of the outer end face of the connecting flange I and the outer end face of the connecting flange II, the inner pipe convex shoulder and the outer pipe convex shoulder are reversely arranged, 8 connecting holes 13 are uniformly arranged on the fixing areas respectively and are overlapped, the connecting flange I and the connecting flange II sequentially penetrate through the connecting holes on the connecting flange I and the connecting, the number of the pull rods is 4.
This embodiment simple structure, can also keep reliable and stable compensation performance, high durability and convenient installation, the efficiency of construction and quality have been improved simultaneously, guarantee gas pipeline's safe operation, the connecting pipe at bellows both ends is provided with seal ring respectively with between the outer tube convex shoulder junction of flange one and flange two, improve holistic leakproofness, it is fixed with inner tube and inner tube convex shoulder threaded connection during the connection, the outer tube passes through the cutting ferrule and connects in fixing the fixed slot on flange, sealing performance is good like this not only, and dismantle simple to operate, simultaneously also more stable safety, can avoid factors such as vibrations to make the body drop, service life has been increased.
In the embodiment, a circle of vent holes are formed in the transition areas of the first connecting flange and the second connecting flange, so that the flanges can be simultaneously connected with the inner pipe and the outer pipe and can keep the space communication between the inner pipe and the outer pipe; the interior external surface of interior flow tube and the even coating of internal surface of bellows have the epoxy coating, and this epoxy coating has reduced the frictional resistance in the pipeline, has improved the mobility of medium, has improved the transport efficiency of pipeline, plays the guard action to the pipeline inner wall simultaneously, has the anticorrosion, guarantees the purity of transport medium.
In addition to the above embodiments, the present invention can also have other embodiments, and all technical solutions formed by equivalent replacement or equivalent transformation are all within the protection scope claimed in the present invention.
Claims (6)
1. The utility model provides a marine gas pipeline double-walled pipe flange, includes flange one, flange two and corrugated metal pipe, its characterized in that: the metal corrugated pipe is respectively connected with the first connecting flange and the second connecting flange through connecting pipes arranged at two ends, an outer pipe connecting area, a transition area and an inner pipe connecting area are sequentially arranged on the first connecting flange and the second connecting flange from outside to inside, an outer pipe convex shoulder matched with the connecting pipes is arranged on the outer pipe connecting area of the inner end face of the first connecting flange and the second connecting flange and fixedly connected with the connecting pipes at the corresponding ends, a sealing gasket is arranged at the connecting part of the outer pipe convex shoulder and the connecting pipes, an inner flow pipe is arranged on the inner pipe connecting area at the inner end of the first connecting flange and fixedly connected with an inner pipe fixing groove arranged on the inner pipe connecting area of the inner end face of the second connecting flange through the corrugated pipe, a plurality of vent holes are uniformly arranged on the transition areas of the first connecting flange and the second connecting flange and are overlapped in position, outer pipe fixing grooves are respectively formed in outer pipe connecting areas of the outer end faces of the first connecting flange and the second connecting flange.
2. A marine gas pipeline double-walled pipe flange according to claim 1, wherein: an inner pipe convex shoulder with a circular ring structure is arranged on an inner pipe connecting area of the outer end faces of the first connecting flange and the second connecting flange, the inner pipe convex shoulder and the outer pipe convex shoulder are arranged in a reverse direction, and an inner thread is arranged on the inner wall of the inner pipe convex shoulder.
3. A marine gas pipeline double-walled pipe flange according to claim 2, wherein: the outer ends of the outer pipe connecting areas of the first connecting flange and the second connecting flange are respectively provided with a fixing area, a plurality of connecting holes are uniformly formed in the fixing areas respectively and coincide with each other, and the first connecting flange and the second connecting flange sequentially penetrate through the connecting holes in the first connecting flange and the second connecting flange through pull rods and are fixed in a matched mode through nuts.
4. A marine gas pipeline double-walled pipe flange according to claim 3, wherein: the number of the pull rods is 2-4, and the number of the connecting holes is twice of that of the pull rods.
5. A marine gas pipeline double-walled pipe flange according to claim 1, wherein: the corrugated pipe and the connecting pipes arranged at the two ends of the corrugated pipe are of an integrated structure.
6. A marine gas pipeline double-walled pipe flange according to claim 1, wherein: and epoxy resin coatings are uniformly coated on the inner surface and the outer surface of the inner flow pipe and the inner surface of the corrugated pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921332969.3U CN210623859U (en) | 2019-08-16 | 2019-08-16 | Double-wall pipe flange for marine gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921332969.3U CN210623859U (en) | 2019-08-16 | 2019-08-16 | Double-wall pipe flange for marine gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210623859U true CN210623859U (en) | 2020-05-26 |
Family
ID=70754291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921332969.3U Active CN210623859U (en) | 2019-08-16 | 2019-08-16 | Double-wall pipe flange for marine gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210623859U (en) |
-
2019
- 2019-08-16 CN CN201921332969.3U patent/CN210623859U/en active Active
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