CN221922545U - A corrosion-resistant submarine flange - Google Patents

Abstract

The utility model relates to the field of flange technology, specifically a corrosion-resistant submarine flange, including a flange, a connecting pipe installed on one side of the flange, a sealing disk installed on the outer side of the connecting pipe, a first sealing groove opened on the outer side of the sealing disk, a second installation groove opened on both sides of the first protective cover, a first rubber sealing ring installed at the bottom end of the second installation groove, a first installation groove opened on both sides of the second protective cover, a third rubber sealing ring installed on the top of the first installation groove, a second rubber sealing ring installed on the bottom of both sides of the first protective cover, and a second sealing groove opened on both sides of the top of the second protective cover. The utility model can avoid direct contact between seawater and the connection between the two flanges through the first protective cover and the second protective cover, thereby avoiding the erosion of the flange by seawater and improving the service life of the flange.

Description

A corrosion-resistant submarine flange

Technical Field

The utility model relates to the technical field of flanges, in particular to a corrosion-resistant submarine flange.

Background Art

Flange, also known as flange flange or flange. Flange is a part that connects shafts to each other. It is used to connect pipe ends. It is also used as flange on the inlet and outlet of equipment. It is used to connect two equipments, such as reducer flange. Flange connection or flange joint refers to a detachable connection that is connected by flange, gasket and bolts as a combined sealing structure. Flanges are used in pairs. Low-pressure pipelines can use threaded flanges. Add a sealing gasket between the two flanges and then tighten them with bolts.

Some pipelines need to be installed in special locations, such as the seabed. After the pipelines installed on the seabed are connected with flanges, the flanges will be corroded by the components contained in the seawater due to long-term immersion in seawater, resulting in a reduction in the service life of the flanges.

For this purpose, a corrosion-resistant submarine flange is proposed.

Utility Model Content

The purpose of the utility model is to provide a corrosion-resistant submarine flange to solve the problems raised in the above-mentioned background technology. To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a corrosion-resistant submarine flange, comprising a flange plate, a connecting pipe installed on one side of the flange plate, a sealing plate installed on the outer side of the connecting pipe, a first sealing groove is provided on the outer side of the sealing plate, a second installation groove is provided on each side of the first protective cover, a first rubber sealing ring is installed at the bottom end of the second installation groove, a first installation groove is provided on each side of the second protective cover, a third rubber sealing ring is installed at the top of the first installation groove, a second rubber sealing ring is provided at the bottom of each side of the first protective cover, and a second sealing groove is provided on each side of the top of the second protective cover.

Preferably, the first rubber sealing ring and the third rubber sealing ring are both in a semicircular arc shape, and the first rubber sealing ring and the third rubber sealing ring are sealedly connected to the first sealing groove.

Preferably, a second fixing plate is respectively installed at the bottom ends of both sides of the first protective cover, and fixing bolts are installed inside the second fixing plate.

Preferably, a first fixing plate is respectively installed on the top of both sides of the second protective cover, and a threaded hole is opened inside the first fixing plate, and the threaded hole and the fixing bolt are connected by threaded engagement.

Preferably, the second rubber sealing ring is sealed to the second sealing groove.

Preferably, the first protective cover is equal to the second protective cover in size, and the first protective cover and the second protective cover are used in conjunction with each other.

Compared with the prior art, the utility model provides an automatic cutting machine for welded pipe body, which has the following beneficial effects:

By providing a flange, a first protective cover, a second protective cover, a first rubber sealing ring, a third rubber sealing ring, a first sealing groove, a sealing plate, a second rubber sealing ring and a second sealing groove, when connecting the pipeline, the two flanges can be fixed, and then the first protective cover and the second protective cover can be installed on the outside of the flange. When installing the first protective cover and the second protective cover, the first rubber sealing ring and the third rubber sealing ring can be respectively inserted into the first sealing groove provided on the outside of the sealing plate, so that both sides of the first protective cover and the second protective cover are sealed and connected with the outside of the connecting pipe. When the first rubber sealing ring and the third rubber sealing ring are inserted into the first sealing groove, the second rubber sealing ring is also inserted into the second sealing groove, so that the connection between the two sides of the first protective cover and the second protective cover is sealed and connected, and then the first protective cover and the second protective cover are fixed. At this time, the connection between the two flanges is inside the first protective cover and the second protective cover. The first protective cover and the second protective cover can prevent seawater from directly contacting the connection between the two flanges, thereby preventing the erosion of the flange by seawater and improving the service life of the flange.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic cross-sectional view of the utility model.

FIG2 is a side view of the structure of the utility model.

FIG3 is a side view of the first protective cover and the second protective cover of the utility model.

FIG4 is a schematic diagram of the three-dimensional structure of the sealing disk of the utility model;

FIG5 is an enlarged schematic diagram of the structure of point A in FIG1 of the present invention.

In the figure: 1. flange; 2. connecting pipe; 3. first sealing groove; 4. sealing plate; 5. first protective cover; 6. second protective cover; 7. threaded hole; 8. first fixing plate; 9. second fixing plate; 10. fixing bolt; 11. first rubber sealing ring; 12. second rubber sealing ring; 13. second sealing groove; 14. third rubber sealing ring; 15. first mounting groove; 16. second mounting groove.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Embodiment 1: A connecting pipe 2 is installed on one side of the flange 1, a sealing disk 4 is installed on the outer side of the connecting pipe 2, a first sealing groove 3 is opened on the outer side of the sealing disk 4, a second installation groove 16 is opened on both sides of the first protective cover 5, a first rubber sealing ring 11 is installed at the bottom end of the second installation groove 16, a first installation groove 15 is opened on both sides of the second protective cover 6, a third rubber sealing ring 14 is installed on the top of the first installation groove 15, a second rubber sealing ring 12 is installed on the bottom of both sides of the first protective cover 5, a second sealing groove 13 is opened on both sides of the top of the second protective cover 6, the first rubber sealing ring 11 and the third rubber sealing ring 14 are both semicircular, and the first rubber sealing ring 11 and the third rubber sealing ring 14 are sealed and connected to the first sealing groove 3.

Specifically, as shown in Figures 1, 2, 3, 4 and 5, since a connecting pipe 2 is installed on one side of the flange 1, and a sealing disk 4 is installed on the outer side of the connecting pipe 2, when connecting the pipelines, the two flanges 1 can be fixed, and then the first protective cover 5 and the second protective cover 6 can be installed on the outer side of the flange 1. Since the second mounting groove 16 and the first mounting groove 15 are respectively opened on one side of the first protective cover 5 and the second protective cover 6, and the first rubber sealing ring 11 is installed on one side of the second mounting groove 16, and the third rubber sealing ring 14 is installed on one side of the first mounting groove 15, when installing the first protective cover 5 and the second protective cover 6, the first rubber sealing ring 11 and the third rubber sealing ring 14 can be respectively inserted into the first sealing groove 3 opened on the outer side of the sealing disk 4, so that both sides of the first protective cover 5 and the second protective cover 6 are connected to the connecting pipe 2. The outer side of the pipe 2 is sealed and connected. Since a second rubber sealing ring 12 is installed on both sides of the bottom end of the first protective cover 5, and a second sealing groove 13 is opened on both sides of the top end of the second protective cover 6, when the first rubber sealing ring 11 and the third rubber sealing ring 14 are inserted into the first sealing groove 3, the second rubber sealing ring 12 will also be inserted into the second sealing groove 13, so as to seal the connection between the first protective cover 5 and the second protective cover 6. Then the first protective cover 5 and the second protective cover 6 are fixed. At this time, the connection between the two flanges 1 is inside the first protective cover 5 and the second protective cover 6. The first protective cover 5 and the second protective cover 6 can avoid direct contact between seawater and the connection between the two flanges 1, thereby avoiding the erosion of seawater on the flange 1 and improving the service life of the flange 1.

A second fixing plate 9 is respectively installed at the bottom end of both sides of the first protective cover 5, and a fixing bolt 10 is installed inside the second fixing plate 9. A first fixing plate 8 is respectively installed on the top of both sides of the second protective cover 6, and a threaded hole 7 is opened inside the first fixing plate 8. The threaded hole 7 and the fixing bolt 10 are connected by threaded engagement. The second rubber sealing ring 12 and the second sealing groove 13 are sealed and connected. The first protective cover 5 and the second protective cover 6 are equal in size, and the first protective cover 5 and the second protective cover 6 are used in conjunction with each other.

Specifically, as shown in Figures 2 and 3, since a second fixing plate 9 is respectively installed on both sides of the first protective cover 5, and a first fixing plate 8 is respectively installed on both sides of the second protective cover 6, when the first protective cover 5 and the second protective cover 6 complete the sealing connection, the first fixing plate 8 and the second fixing plate 9 will be aligned together. At this time, the first protective cover 5 and the second protective cover 6 can be fixed by inserting the fixing bolt 10 installed inside the second fixing plate 9 into the threaded hole 7. Since the fixing bolt 10 and the threaded hole 7 are connected by threaded engagement, the fixing bolt 10 can be inserted into the threaded hole 7 by rotating the fixing bolt 10, and the stability of the first protective cover 5 and the second protective cover 6 during installation and use is guaranteed, and the fixing bolt 10 is prevented from loosening during long-term use, thereby causing gaps in the sealing connection of the first protective cover 5 and the second protective cover 6, further improving the use of the flange 1.

Working principle: When in use, the two flanges 1 can be fixed, and then the first protective cover 5 and the second protective cover 6 can be installed on the outer side of the flange 1. Since the second mounting groove 16 and the first mounting groove 15 are respectively opened on one side of the first protective cover 5 and the second protective cover 6, and the first rubber sealing ring 11 is installed on one side of the second mounting groove 16, and the third rubber sealing ring 14 is installed on one side of the first mounting groove 15, therefore, when installing the first protective cover 5 and the second protective cover 6, the first rubber sealing ring 11 and the third rubber sealing ring 14 can be respectively inserted into the first sealing groove 3 opened on the outer side of the sealing plate 4, so that the two sides of the first protective cover 5 and the second protective cover 6 are sealed and connected to the outer side of the connecting pipe 2. Since a second rubber sealing ring 12 is respectively installed on both sides of the bottom end of the first protective cover 5, and a second sealing groove 13 is respectively opened on both sides of the top end of the second protective cover 6, therefore, when the first rubber sealing ring 11 and the third rubber sealing ring 14 are inserted into the first sealing groove 3, the second rubber sealing ring 12 will also be inserted into the second sealing groove 1 3, so as to seal the connection between the first protective cover 5 and the second protective cover 6 on both sides, and then fix the first protective cover 5 and the second protective cover 6. After the first protective cover 5 and the second protective cover 6 are sealed, the first fixing plate 8 and the second fixing plate 9 will be aligned together. At this time, the fixing bolts 10 installed inside the second fixing plate 9 are inserted into the threaded hole 7 to fix the first protective cover 5 and the second protective cover 6. Since the fixing bolts 10 and the threaded hole 7 are connected by threaded engagement, the fixing bolts 10 can be inserted into the threaded hole 7 by rotating the fixing bolts 10, and the stability of the first protective cover 5 and the second protective cover 6 during installation and use is ensured, and the fixing bolts 10 are prevented from loosening during long-term use, thereby causing a gap in the sealing connection of the first protective cover 5 and the second protective cover 6. The first protective cover 5 and the second protective cover 6 can avoid direct contact between seawater and the connection between the two flanges 1, thereby avoiding the erosion of the flange 1 by seawater and improving the service life of the flange 1.

It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims (6)

1. The utility model provides a corrosion-resistant submarine flange, includes ring flange (1), first protection casing (5) and second protection casing (6), its characterized in that: one side installation connecting pipe (2) of ring flange (1), sealing disk (4) are installed in the outside of connecting pipe (2), first seal groove (3) have been seted up in the outside of sealing disk (4), second mounting groove (16) have been seted up respectively to the both sides of first protection casing (5), first rubber seal (11) are installed to the bottom of second mounting groove (16), first mounting groove (15) have been seted up respectively to the both sides of second protection casing (6), third rubber seal (14) are installed on the top of first mounting groove (15), second rubber seal (12) have been installed respectively to the bottom of the both sides of first protection casing (5), second seal groove (13) have been seted up respectively to the both sides at second protection casing (6) top.

2. A corrosion resistant subsea flange according to claim 1, characterized in that: the first rubber sealing ring (11) and the third rubber sealing ring (14) are in semicircular arc shapes, and the first rubber sealing ring (11), the third rubber sealing ring (14) and the first sealing groove (3) are in sealing connection.

3. A corrosion resistant subsea flange according to claim 1, characterized in that: the bottom of first protection casing (5) both sides is installed respectively and is fixed board (9) second, the internally mounted of second fixed board (9) has fixing bolt (10).

4. A corrosion resistant subsea flange according to claim 1, characterized in that: the top of second protection casing (6) both sides is installed respectively and is had been seted up screw hole (7) in the inside of first fixed plate (8), be connected through the screw thread meshing between screw hole (7) and fixing bolt (10).

5. A corrosion resistant subsea flange according to claim 1, characterized in that: the second rubber sealing ring (12) is in sealing connection with the second sealing groove (13).

6. A corrosion resistant subsea flange according to claim 1, characterized in that: the first protective cover (5) and the second protective cover (6) are equal in size, and the first protective cover (5) and the second protective cover (6) are matched for use.