CN211315426U - Flange connecting piece and pipeline connecting device for ship seawater pipeline system - Google Patents
Flange connecting piece and pipeline connecting device for ship seawater pipeline system Download PDFInfo
- Publication number
- CN211315426U CN211315426U CN201921940729.1U CN201921940729U CN211315426U CN 211315426 U CN211315426 U CN 211315426U CN 201921940729 U CN201921940729 U CN 201921940729U CN 211315426 U CN211315426 U CN 211315426U
- Authority
- CN
- China
- Prior art keywords
- flange
- grounding
- shell
- movable plug
- observation hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a flange connecting piece for a marine pipeline system of a ship, which comprises a shell, wherein a hollow iron alloy anode is arranged in the shell, an anode loss observation hole and a grounding screw hole are arranged on the shell, and the observation hole and the grounding screw hole penetrate through the shell along the wall thickness direction; an observation hole movable plug is arranged in the observation hole in a penetrating manner, and a grounding movable plug is arranged in the grounding screw hole in a penetrating manner; the grounding movable plug is fixedly connected with the grounding wire. The utility model discloses utilize ferroalloy anodic protection sea water pipe-line system, can avoid sea water pipe-line system's pipeline and control valve spare to be corroded by the sea water to strengthen pipeline and control valve spare's resistant sea water corrosion resistance ability, prolong sea water pipe-line system's life and fail safe nature greatly. The utility model also discloses a pipe connection device for naval vessel sea water pipe-line system.
Description
Technical Field
The utility model relates to a metal pipeline connecting piece, concretely relates to flange joint spare for naval vessel sea water pipe-line system. The utility model discloses still relate to a pipe connection device for naval vessel sea water pipe-line system.
Background
The seawater pipeline system of the ship is an important component of systems such as ship fire fighting, weapon equipment cooling water, main machine cooling water and the like, and plays an important role in the safety of the ship and the operation of core equipment.
The medium of the seawater pipeline system is seawater, and the seawater is extremely corrosive, so the corrosion problem of the seawater pipeline system is a problem to be solved.
In order to improve the corrosion resistance of seawater pipelines, the current main means is to change materials. For example, copper-nickel alloy material is used to replace copper as the material for making seawater pipeline. Although the corrosion resistance of the copper-nickel alloy is improved compared with that of copper, the phenomenon of pipeline corrosion damage caused by impact corrosion is still serious in areas with serious turbulence, such as a tee joint, a bent pipe, a flange joint and the like.
In addition, the control valve in the seawater pipeline system is generally made of nickel-aluminum bronze, so that the control valve is made of a material different from that of the pipeline (copper-nickel alloy material), and galvanic corrosion is caused by different materials, so that the nickel-aluminum bronze valve at the lower end of the material potential in the seawater pipeline system of the ship can generate galvanic corrosion and stray current corrosion.
In conclusion, the corrosion problem of the seawater pipeline system cannot be really solved only by changing the materials, and the existing seawater pipeline system still has a more serious corrosion phenomenon.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a flange joint spare for naval vessel sea water pipe-line system is provided, it can protect sea water pipe-line system and control valve spare not corroded to guarantee sea water pipe-line system normally moves safely.
In order to solve the technical problem, the utility model discloses a flange joint's technical solution for naval vessel sea water pipe-line system does:
the device comprises a shell, wherein a hollow ferroalloy anode is arranged in the shell, an anode loss observation hole and a grounding screw hole are formed in the shell, and the observation hole and the grounding screw hole penetrate through the shell along the wall thickness direction; an observation hole movable plug is arranged in the observation hole in a penetrating manner, and a grounding movable plug is arranged in the grounding screw hole in a penetrating manner; the grounding movable plug is fixedly connected with the grounding wire.
In another embodiment, the housing is tubular; the section of the ferroalloy anode is annular.
In another embodiment, the ferroalloy anode has an inner diameter that corresponds to the inner diameter of the pipe to be joined.
In another embodiment, the material of the housing is the same as the material of the pipes to be connected.
In another embodiment, sealing elements are respectively arranged between the grounding movable plug and the shell and between the observation hole movable plug and the shell.
In another embodiment, the grounding movable plug and the observation hole movable plug are made of brass; the grounding wire is a red copper grounding wire with an insulating sleeve; the material of the shell is copper-nickel alloy.
In another embodiment, the viewing and grounding screw holes are distributed along a circumferential direction of the housing; an included angle is formed between the observation hole and the central line of the grounding screw hole.
In another embodiment, the movable plug of the observation hole is a screw or a bolt; and/or the grounding movable plug is a screw or a bolt.
The utility model also provides a pipe connection device for naval vessel sea water pipe-line system, its technical solution is:
the flange connecting piece is connected with the front end flange at one end and connected with the rear end flange at the other end; the front end flange is sleeved with a front end flange cover, and the rear end flange is sleeved with a rear end flange cover; the front end flange cover and the rear end flange cover are fixedly connected through a fixing bolt, and the flange connecting piece is fixed between the front end flange and the rear end flange; the front end flange is fixedly connected with an input pipeline, and the rear end flange is fixedly connected with an output pipeline; the grounding wire is connected with one end of the connecting wire, and the other end of the connecting wire is connected with the fixing bolt.
In another embodiment, sealing gaskets are respectively arranged between the flange connecting piece and the front end flange and between the flange connecting piece and the rear end flange.
The utility model discloses the technological effect that can reach is:
the utility model discloses utilize ferroalloy anodic protection sea water pipe-line system, can avoid sea water pipe-line system's pipeline and control valve spare to be corroded by the sea water to strengthen pipeline and control valve spare's resistant sea water corrosion resistance ability, prolong sea water pipe-line system's life and fail safe nature greatly.
The utility model discloses change simply, the routine maintenance of the sea water pipe-line system of being convenient for. And, the utility model discloses a major part such as shell, observation hole bolt, ground screw can used repeatedly, only needs to change the lower ferroalloy positive pole of inside economic value and can continuously use, and economic value is showing.
Drawings
It is to be understood by those skilled in the art that the following description is merely exemplary in nature and that the principles of the present invention may be applied in numerous ways to achieve many different alternative embodiments. These descriptions are only used to illustrate the general principles of the teachings of the present invention and are not meant to limit the inventive concepts disclosed herein.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the general description given above and the detailed description of the drawings given below, serve to explain the principles of the invention.
The invention will be described in further detail with reference to the following drawings and detailed description:
fig. 1 is a schematic structural view of a flange connector for a marine pipeline system of a ship according to the present invention;
FIG. 2 is a schematic sectional view of FIG. 1;
fig. 3 is a schematic structural diagram of the pipe connection device for the marine pipeline system of the ship of the present invention.
The reference numbers in the figures illustrate:
1 is an iron alloy anode, 2 is a shell,
3 is an observation hole, 4 is a grounding screw hole,
5 is a sealing member, 6 is a grounding wire,
7 is an observation hole bolt, 8 is a grounding screw,
20 is a flange-type connection member which is provided with a flange,
11 is an input pipeline, 12 is a front end flange,
13 is an output pipeline, 14 is a rear end flange,
15 is a sealing gasket, 16 is a front end flange cover,
a rear end flange cover 17 and a fixing bolt 18.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. As used herein, the word "comprising" and similar words are intended to mean that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "front", "rear", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
As shown in fig. 1 and 2, the flange connector 20 for a marine pipeline system of a ship comprises a tubular housing 2, wherein an iron alloy anode 1 with an annular cross section is attached to the inner wall of the housing 2, an anode loss observation hole 3 and a grounding screw hole 4 are formed in the housing 2, and the observation hole 3 and the grounding screw hole 4 penetrate through the housing 2 along the wall thickness direction;
an observation hole bolt 7 penetrates through the observation hole 3, and a grounding screw 8 penetrates through the grounding screw hole 4.
The inner diameter of the ferroalloy anode 1 is consistent with the inner diameter of a pipeline to be connected;
the material of the shell 2 is the same as the material of the pipelines to be connected (i.e. the input pipeline 11 and the output pipeline 13), and is preferably copper-nickel alloy;
the grounding screw 8 is fixedly connected with the grounding wire 6.
Preferably, the grounding screw 8 and the observation hole bolt 7 are made of brass; the grounding wire 6 adopts a red copper grounding wire with an insulating sleeve.
Preferably, the observation holes 3 and the grounding screw holes 4 are distributed along the circumferential direction of the housing 2, and an included angle a is formed between the observation holes 3 and the central line of the grounding screw holes 4. The included angle a in fig. 1 is 90 degrees, but the included angle a may be any other angle, and may be adjusted according to actual needs.
As shown in fig. 3, the pipeline connecting device for the marine pipeline system of the ship comprises a flange connecting piece 20, wherein one end of the flange connecting piece 20 is connected with a front end flange 12, and the other end of the flange connecting piece 20 is connected with a rear end flange 14; the front end flange 12 is sleeved with a front end flange cover 16, and the rear end flange 14 is sleeved with a rear end flange cover 17; the front end flange cover 16 and the rear end flange cover 17 are fixedly connected through fixing bolts 18, so that a flange connecting piece 20 is fixed between the front end flange 12 and the rear end flange 14;
sealing gaskets 15 are respectively arranged between the flange connecting piece 20 and the front end flange 12 and the rear end flange 14;
the front end flange 12 is fixedly connected with the input pipeline 11, and the rear end flange 14 is fixedly connected with the output pipeline 13;
the grounding wire 6 is connected with one end of a connecting lead L, and the other end of the connecting lead L is connected with a fixing bolt 18; the connecting lead L is used to electrically connect the ferroalloy anode 1 with the protected input pipe 11 and output pipe 13, and if the flange at one end is a device or pipeline of dissimilar metal, the end is not connected with a lead and insulation measures are taken.
The utility model discloses an internal diameter of ferroalloy positive pole is unanimous with the internal diameter of sea water pipeline, does not influence the flow area of system's medium to can avoid the problem that the sea water velocity of flow that leads to diminishes because of the latus rectum accelerates.
The utility model discloses be provided with positive pole loss observation hole 3, only need to take out from observation hole 3 observation hole bolt 7, can observe the loss degree of shell 2 interior ferroalloy positive pole 1 to can realize judging the in service behavior of flange joint spare 20 under the condition of not tearing open the pipe. Once it is found that the ferroalloy anode 1 has been completely consumed, the pipe section in which the flange connection 20 is located is cut off, the flange connection 20 is removed and replaced with a new flange connection 20. Even if the ferroalloy anode 1 is not found to be completely worn out in time, the shell 2 still can play a circulating role at the moment, and the normal operation of the seawater pipeline system is not influenced.
The working principle of the utility model is as follows:
because the electric potential of the iron alloy anode 1 is lower than that of a seawater pipeline made of copper-nickel alloy and a control valve made of nickel-aluminum bronze, when seawater flows in a pipeline system, the iron alloy anode 1 with the lower electric potential is corroded firstly, and when the iron alloy anode 1 is completely corroded and lost, the seawater can corrode the shell 2 and the seawater pipeline;
during the operation of the pipeline system, the observation hole bolt 7 is unscrewed, and whether water leaks or flows out of the observation hole 3 is observed. If water leaks or flows out, which indicates that the ferroalloy anode 1 is worn and corroded, the replacement work is needed, and at the moment, the flange connecting piece 20 can be taken out from between the front end flange 12 and the rear end flange 14 to replace the new flange connecting piece 20; if the phenomenon does not occur, the ferroalloy anode 1 is not damaged and can still be used.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications of the present invention fall within the scope of the claims and their equivalent technologies, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides a flange joint spare for naval vessel sea water pipe-line system which characterized in that: the device comprises a shell, wherein a hollow ferroalloy anode is arranged in the shell, an anode loss observation hole and a grounding screw hole are formed in the shell, and the observation hole and the grounding screw hole penetrate through the shell along the wall thickness direction; an observation hole movable plug is arranged in the observation hole in a penetrating manner, and a grounding movable plug is arranged in the grounding screw hole in a penetrating manner; the grounding movable plug is fixedly connected with the grounding wire.
2. The flange connection for a marine pipeline system of claim 1, wherein: the shell is tubular; the section of the ferroalloy anode is annular.
3. The flange connection for a marine pipeline system of claim 1, wherein: the inner diameter of the ferroalloy anode is consistent with the inner diameter of a pipeline to be connected.
4. The flange connection for a marine pipeline system of claim 1, wherein: the material of the shell is the same as the material of the pipeline to be connected.
5. The flange connection for a marine pipeline system of claim 1, wherein: sealing elements are respectively arranged between the grounding movable plug and the shell and between the observation hole movable plug and the shell.
6. The flange connection for a marine pipeline system of claim 1, wherein: the grounding movable plug and the observation hole movable plug are made of brass; the grounding wire is a red copper grounding wire with an insulating sleeve; the material of the shell is copper-nickel alloy.
7. The flange connection for a marine pipeline system of claim 1, wherein: the observation holes and the grounding screw holes are distributed along the circumferential direction of the shell; an included angle is formed between the observation hole and the central line of the grounding screw hole.
8. The flange connection for a marine pipeline system of claim 1, wherein: the movable plug of the observation hole is a screw or a bolt; and/or the grounding movable plug is a screw or a bolt.
9. A pipe connection device for a ship seawater pipeline system is characterized in that: the flange connecting piece for the ship seawater pipeline system as claimed in any one of claims 1 to 8, wherein one end of the flange connecting piece is connected with the front end flange, and the other end of the flange connecting piece is connected with the rear end flange; the front end flange is sleeved with a front end flange cover, and the rear end flange is sleeved with a rear end flange cover; the front end flange cover and the rear end flange cover are fixedly connected through a fixing bolt, and the flange connecting piece is fixed between the front end flange and the rear end flange; the front end flange is fixedly connected with an input pipeline, and the rear end flange is fixedly connected with an output pipeline; the grounding wire is connected with one end of the connecting wire, and the other end of the connecting wire is connected with the fixing bolt.
10. The pipe connection for a marine pipeline system according to claim 9, wherein: and sealing gaskets are respectively arranged between the flange connecting piece and the front end flange and between the flange connecting piece and the rear end flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921940729.1U CN211315426U (en) | 2019-11-11 | 2019-11-11 | Flange connecting piece and pipeline connecting device for ship seawater pipeline system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921940729.1U CN211315426U (en) | 2019-11-11 | 2019-11-11 | Flange connecting piece and pipeline connecting device for ship seawater pipeline system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211315426U true CN211315426U (en) | 2020-08-21 |
Family
ID=72054517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921940729.1U Active CN211315426U (en) | 2019-11-11 | 2019-11-11 | Flange connecting piece and pipeline connecting device for ship seawater pipeline system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211315426U (en) |
-
2019
- 2019-11-11 CN CN201921940729.1U patent/CN211315426U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205118460U (en) | Boats and ships or ocean engineering non ferrous metal pipe crossing cabin double cannula structure | |
| CN107178680A (en) | A kind of pipeline anticorrosion device and pipe-line system | |
| CN211315426U (en) | Flange connecting piece and pipeline connecting device for ship seawater pipeline system | |
| US6279617B1 (en) | Corrosion-protected metal construction in the form of a pipeline | |
| CN105257930A (en) | Tongue and groove face flange | |
| US3133873A (en) | Electrolytic anode and connection | |
| US4146448A (en) | Protection of a stern tube shaft liner | |
| CN102758971A (en) | High-potential metal seawater pipeline penetration piece with composite structure | |
| US11578412B1 (en) | Sacrificial anodes for cathodic protection for production vessels, storage vessels and other steel structures | |
| CN108823571B (en) | Intelligent seawater pipeline sacrificial anode structure with critical alarm function and corrosion state in-situ monitoring method thereof | |
| CN205190984U (en) | Sleeve pipe is sacrificed to marine sea water system anticorrosion cast iron | |
| US5333913A (en) | Galvanic isolation device | |
| CN211311601U (en) | Sacrificial anode device for seawater pipeline system | |
| CN202708348U (en) | High potential metal seawater pipeline cabin penetration pipe fitting with sealing ring | |
| CN202107770U (en) | Electric insulation structure for pipelines | |
| CN206191116U (en) | Cup -shaped tube coupling anticorrosives | |
| CN217556301U (en) | Corrosion-resistant sacrificial anode assembly convenient for observing corrosion degree of seawater pipeline | |
| CN100526510C (en) | Integration corrosion-proof method for copper seawater pipe line | |
| CN218372526U (en) | Replaceable sacrificial anode device for marine pipeline | |
| CN105710509A (en) | Welding sealing method for preventing crevice corrosion from being generated between iron anode and copper alloy flange | |
| CN207647752U (en) | A kind of deep well pump three-phase current unbalance detection protective device | |
| US11732367B2 (en) | Selectively removable marine engine anode | |
| CN109737242A (en) | A kind of anti-impact device for ship crossing cabin pipeline | |
| CN108351052B (en) | Pipeline welding junction equipment | |
| CN213772218U (en) | Anticorrosive yacht aluminum alloy sacrificial anode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |