CN114992407A - Side pipe installation structure and method for preventing seawater corrosion - Google Patents
Side pipe installation structure and method for preventing seawater corrosion Download PDFInfo
- Publication number
- CN114992407A CN114992407A CN202210784616.7A CN202210784616A CN114992407A CN 114992407 A CN114992407 A CN 114992407A CN 202210784616 A CN202210784616 A CN 202210784616A CN 114992407 A CN114992407 A CN 114992407A
- Authority
- CN
- China
- Prior art keywords
- pipe
- flange
- sealing gasket
- side pipe
- short
- 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.)
- Withdrawn
Links
- 238000005260 corrosion Methods 0.000 title claims abstract description 23
- 230000007797 corrosion Effects 0.000 title claims abstract description 23
- 239000013535 sea water Substances 0.000 title claims abstract description 20
- 238000009434 installation Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 239000000565 sealant Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract description 3
- 238000005536 corrosion prevention Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/08—Coatings characterised by the materials used by metal
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The invention discloses a sea water corrosion prevention side pipe installation structure and an installation method, wherein the installation structure comprises a flat flange, a connecting flange, a side valve flange, a connecting short pipe, a first sealing gasket, a second sealing gasket, a fastening bolt and a fastening nut, the flat flange is installed at the end part of the side pipe, the connecting flange is arranged between the flat flange and the side valve flange, the first sealing gasket is arranged between the flat flange and the connecting flange, the second sealing gasket is arranged between the connecting flange and the side valve flange, one end of the connecting short pipe is installed at the inner side of the connecting flange, the outer diameter of the connecting short pipe is slightly smaller than the inner diameter of the side pipe, and the other end of the connecting short pipe extends into the side pipe. The invention solves the problem of the corrosion of the side pipe, in particular to the corrosion of the welding area of the flat flange and the side short pipe, and has compact arrangement, depression installation and convenient maintenance.
Description
Technical Field
The invention belongs to the technical field of ship construction, and particularly relates to a side pipe installation structure and an installation method for preventing seawater corrosion.
Background
Seawater of the ship cabin cooling equipment needs to be discharged to the outside, the ship cabin cooling equipment is usually directly connected with a hull outer plate through a broadside short pipe, and the broadside short pipe is in a seawater environment for a long time and is easy to corrode, so that the corrosion prevention measures of the broadside pipe need to be particularly considered. The side pipe assembly is formed by welding a flat flange and a side pipe, however, the inside of a plurality of side pipes is corroded, the pipe wall is thinned, and particularly, if the corrosion is serious, the side pipe leaks water, so that the danger is brought to an engine room, a ship has to be temporarily docked, the side pipe stub is installed again, and the huge economic loss is brought to the ship operation. Therefore, how to prevent seawater from corroding the side pipes becomes a problem to be solved urgently.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the installation structure of the side pipe for preventing seawater corrosion, which can effectively avoid the problem of water leakage caused by corrosion of the side pipe and reduce the risk of ship maintenance. In addition, the invention also provides a method for installing the side pipe for preventing seawater corrosion.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a side pipe mounting structure for preventing seawater corrosion, which comprises a flat flange, a connecting flange, a side valve flange, a connecting short pipe, a first sealing gasket, a second sealing gasket, a fastening bolt and a fastening nut, the flat flange is arranged at the end part of the side pipe, the connecting flange is arranged between the flat flange and the side valve flange, a first sealing gasket is arranged between the flat flange and the connecting flange, a second sealing gasket is arranged between the connecting flange and the side by-side valve flange, one end of the connecting short pipe is arranged at the inner side of the connecting flange, the outer diameter of the connecting short pipe is slightly smaller than the inner diameter of the side pipe, the other end of the short connecting pipe extends into the side pipe, and the flat flange, the connecting flange and the side valve flange are fixed through fastening bolts and fastening nuts.
As the preferred technical scheme, waterproof sealant is arranged between the short connecting pipe and the side pipe.
As a preferable technical scheme, the gap between the connecting short pipe and the side pipe is 0.5 mm.
Preferably, the length of the connecting short pipe is 100 mm.
As a preferable technical scheme, the thickness of the connecting short pipe is 2 mm.
Preferably, the first sealing gasket and the second sealing gasket are made of asbestos-free fibers.
As the preferred technical scheme, the connecting flange and the connecting short pipe are made of stainless steel materials.
As a preferable technical scheme, the surfaces of the side pipe and the flat flange are plated with zinc coatings.
In a second aspect of the present invention, there is provided a method for installing a side pipe to prevent seawater corrosion, the method including the steps of:
firstly, mounting a welded side pipe and a flat flange on a hull outer plate, and coating waterproof sealant on a contact surface of the side pipe and a short connecting pipe;
sleeving the first sealing gasket on the connecting flange, and installing the welded connecting flange and the connecting short pipe in place;
and step three, fixing the flat flange, the first sealing gasket, the second sealing gasket, the connecting flange and the side valve flange through a plurality of fastening bolts and fastening nuts.
Compared with the prior art, the invention has the following technical effects: the invention solves the problem of the corrosion of the side pipe, particularly the corrosion of the welding area of the flat flange and the side short pipe, and has the advantages of compact arrangement, depression installation and convenient maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of a side port pipe installation structure of the present invention.
FIG. 2 is a schematic structural diagram of the connecting pipe stub and the connecting flange of the present invention.
Wherein the reference numerals are specified as follows: the side pipe comprises a side pipe 1, a flat flange 2, a fillet weld 3, a first sealing gasket 4, waterproof sealant 5, a connecting flange 6, a short connecting pipe 7, a fastening bolt 8, a fastening nut 9, a second sealing gasket 10 and a side valve flange 11.
Detailed Description
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1 and 2, the present embodiment provides an installation structure of a side pipe 1 for preventing seawater corrosion, which includes a flat flange 2, a connection flange 6, a side valve flange 11, a connection short pipe 7, a first sealing gasket 4, a second sealing gasket 10, a fastening bolt 8, and a fastening nut 9, wherein the flat flange 2 is installed at an end portion of the side pipe 1, and a weld between the flat flange 2 and the side pipe 1 is a fillet weld 3. The connecting flange 6 is arranged between the flat flange 2 and the side by side valve flange 11, the first sealing gasket 4 is arranged between the flat flange 2 and the connecting flange 6, the second sealing gasket 10 is arranged between the connecting flange 6 and the side by side valve flange 11, one end of the short connecting pipe 7 is welded on the inner side of the connecting flange 6, the length of the short connecting pipe 7 is 100mm, and the thickness of the short connecting pipe 7 is 2 mm. The outer diameter of the short connecting pipe 7 is slightly smaller than the inner diameter of the side pipe 1, the other end of the short connecting pipe 7 extends into the side pipe 1, and the gap between the short connecting pipe 7 and the side pipe 1 is 0.5 mm. Waterproof sealant 5 is arranged between the short connecting pipe 7 and the side pipe 1. The flat flange 2, the connecting flange 6 and the side valve flange 11 are fixed through fastening bolts 8 and fastening nuts 9. In this embodiment, the first sealing gasket 4 and the second sealing gasket 10 are made of non-asbestos fiber, the connecting flange 6 and the connecting short pipe 7 are made of stainless steel material, and the surfaces of the side pipe 1 and the flat flange 2 are plated with zinc coatings.
The embodiment also provides an installation method of the side pipe 1 for preventing seawater corrosion, which adopts the installation structure of the side pipe 1 and comprises the following steps:
firstly, mounting a welded side pipe 1 and a flat flange 2 on a hull outer plate, and coating a waterproof sealant 5 on a contact surface of the side pipe 1 and a connecting short pipe 7;
step two, sleeving the first sealing gasket 4 on the connecting flange 6, and installing the welded connecting flange 6 and the connecting short pipe 7 in place;
and step three, fixing the flat flange 2, the first sealing gasket 4, the second sealing gasket 10, the connecting flange 6 and the side by side valve flange 11 through a plurality of fastening bolts 8 and fastening nuts 9.
Although the present invention has been described in detail with respect to the above embodiments, it will be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention may be made without departing from the spirit and scope of the invention, and these modifications and improvements are within the spirit and scope of the invention.
Claims (9)
1. A side pipe mounting structure for preventing seawater corrosion is characterized by comprising a flat flange, a connecting flange, a side valve flange, a connecting short pipe, a first sealing gasket, a second sealing gasket, a fastening bolt and a fastening nut, the flat flange is arranged at the end part of the side pipe, the connecting flange is arranged between the flat flange and the side valve flange, a first sealing gasket is arranged between the flat flange and the connecting flange, a second sealing gasket is arranged between the connecting flange and the side by-side valve flange, one end of the short connecting pipe is arranged at the inner side of the connecting flange, the outer diameter of the short connecting pipe is slightly smaller than the inner diameter of the side pipe, the other end of the short connecting pipe extends into the side pipe, and the flat flange, the connecting flange and the side valve flange are fixed through fastening bolts and fastening nuts.
2. The structure for installing a side pipe against seawater corrosion of claim 1, wherein a waterproof sealant is provided between the junction pipe and the side pipe.
3. The structure of claim 1, wherein the gap between the junction pipe and the side pipe is 0.5 mm.
4. The structure for installing the side port pipe for preventing seawater corrosion of claim 1, wherein the length of the connection short pipe is 100 mm.
5. The structure for installing the side pipe for preventing seawater corrosion of claim 1, wherein the thickness of the connection stub pipe is 2 mm.
6. The marine corrosion protection side by side pipe installation structure of claim 1, wherein the first sealing gasket and the second sealing gasket are made of asbestos-free fiber.
7. The installation structure of the side pipe for preventing seawater corrosion of claim 1, wherein the connecting flange and the connecting short pipe are made of stainless steel materials.
8. The structure for mounting a side pipe against seawater corrosion of claim 1, wherein the surfaces of the side pipe and the flat flange are plated with a zinc coating.
9. A method for installing a side by side pipe for preventing seawater corrosion, which comprises the steps of:
firstly, mounting a welded side pipe and a flat flange on a hull outer plate, and coating waterproof sealant on a contact surface of the side pipe and a short connecting pipe;
sleeving the first sealing gasket on the connecting flange, and installing the welded connecting flange and the connecting short pipe in place;
and step three, fixing the flat flange, the first sealing gasket, the second sealing gasket, the connecting flange and the side valve flange through a plurality of fastening bolts and fastening nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210784616.7A CN114992407A (en) | 2022-07-05 | 2022-07-05 | Side pipe installation structure and method for preventing seawater corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210784616.7A CN114992407A (en) | 2022-07-05 | 2022-07-05 | Side pipe installation structure and method for preventing seawater corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114992407A true CN114992407A (en) | 2022-09-02 |
Family
ID=83019138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210784616.7A Withdrawn CN114992407A (en) | 2022-07-05 | 2022-07-05 | Side pipe installation structure and method for preventing seawater corrosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114992407A (en) |
-
2022
- 2022-07-05 CN CN202210784616.7A patent/CN114992407A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220902 |