Octagonal metal sealing ring gasket with ultra-large diameter

Abstract

The utility model discloses an ultra-large diameter metal octagonal sealing ring gasket which comprises a ring gasket body, a hoisting hole is formed in the end face of the ring gasket body, a fixing rod is installed in the hoisting hole, and one end of the fixing rod is integrally connected with a hoisting ring. The device has the advantages that part of manual installation and operation cost is saved, potential safety hazards of operation can be reduced, and meanwhile surface damage caused by the fact that a disassembling tool is used when the sealing surface of the device is manually disassembled can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the field of super-large-caliber sealing ring gaskets, in particular to a super-large-caliber metal octagonal sealing ring gasket. Background Art

[0002] The sealing principle of the metal octagonal ring gasket is that the sealing surface of the ring gasket is plastically deformed by the tightening and extrusion pressure of the upper and lower flange groove sealing surfaces to form a surface seal. The specifications range from small to large, and the diameter can reach several meters. Since traditional metal sealing ring gaskets do not have lifting holes, and the extra-large diameter ring gaskets are large in size and heavy in weight, when replacing the ring gasket, multiple people are required on site to cooperate in carrying and installing it.

[0003] Installation methods are usually divided into horizontal installation and vertical installation. When performing horizontal installation, traditional ring gaskets need to place one side of the ring gasket in the flange groove first, and then slowly lower the other side of the ring gasket. When removing, it is necessary to use tools such as crowbars to remove it. When installing vertically, the ring gasket needs to be lifted vertically first, and then placed in the flange groove. When the left and right flange grooves are closed, several people are needed to support the ring gasket. The manual operation can only be removed when the ring gasket can be stably placed in the groove. When removing, the left and right flange grooves need to be slowly separated until the ring gasket can be manually touched. After supporting and stabilizing the ring gasket, the left and right flange grooves can be completely separated, and the ring gasket can be manually removed vertically. Horizontal installation and removal require the cooperation of multiple people, and the use of tools is required during removal, which can easily damage the sealing surface of the ring gasket and the flange groove, resulting in affected sealing effects. Vertical installation and removal require the cooperation of multiple people, and are not easy to install and operate. There is a safety hazard of the ring gasket tipping over. Utility Model Content

[0004] The purpose of the present utility model is to provide an extra-large-caliber metal octagonal sealing ring gasket to solve the problems raised in the above-mentioned background technology. It has the advantages of saving part of the manual installation operation cost, reducing the hidden dangers of operational safety, and effectively avoiding the surface damage of the equipment sealing surface caused by the use of disassembly tools during manual disassembly.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an extra-large-caliber metal octagonal sealing ring gasket, comprising a ring gasket body, the end face of the ring gasket body being provided with a lifting hole, a fixing rod being installed in the lifting hole, and one end of the fixing rod being integrally connected with a lifting ring.

[0006] Preferably, the lifting ring is connected to a connecting rope, and the connecting rope is provided with a hook.

[0007] Preferably, a first flange and a second flange are provided on the outer side of the ring gasket body, a bolt is provided between the first flange and the second flange, and nuts are threadedly connected at both ends of the bolt.

[0008] Preferably, first sealing surfaces are provided on the upper and lower sides of the inner diameter of the ring gasket body.

[0009] Preferably, second sealing surfaces are provided on the upper and lower sides of the outer diameter of the ring gasket body.

[0010] Preferably, the first flange and the second flange are both provided with sealing grooves, and the ring gasket body is located in the two sealing grooves.

[0011] Preferably, the outer diameter of the ring gasket body is also provided with a lifting hole.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. This utility model is a metal octagonal sealing ring gasket with lifting holes on the outer diameter and end face. It is suitable for sealing connections of pipeline flanges, wellhead devices and valves with a diameter of DN2000 or above. It has the function of being installed and replaced horizontally and vertically by lifting equipment, which not only saves some manual installation and operation costs, but also reduces operational safety hazards. At the same time, it can effectively avoid surface damage to the equipment sealing surface caused by the use of disassembly tools during manual disassembly.

[0014] 2. A lifting hole is added to the traditional large-caliber metal sealing ring gasket, so that the ring gasket body has a lifting function. After installing the lifting ring in the lifting hole, the ring gasket can be lifted with lifting equipment, making it easier to carry;

[0015] 3. When installing horizontally, the end lifting ring is used to lift the gasket horizontally and place it in the flange groove. After placement, the lifting ring is removed. When repairing, replacing or removing, each lifting ring is installed in the lifting hole, and the gasket body is lifted horizontally by lifting equipment, which avoids the gasket body from being easily bumped when placed and the sealing groove is damaged by tools such as crowbars when removing it, which may cause poor sealing effect. When installing vertically, the outer diameter lifting ring is used to suspend the gasket body vertically in the sealing groove on one side, and then the left and right sealing grooves are closed and the lifting ring is removed. The removal process is just the reverse of the installation process. The design of the lifting hole on the gasket body solves the problem of difficult transportation of the gasket and the need for tools during removal, which may easily cause damage to the flange groove sealing surface. The assembly method of the lifting ring is easy and convenient, while reducing labor waste and greatly increasing work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of vertical lifting;

[0017] Figure 2 for Figure 1 Front view of

[0018] Figure 3 for Figure 2 Cross-sectional view in the AB direction;

[0019] Figure 4 for Figure 2 Cross-sectional view in the AC direction;

[0020] Figure 5 This is a schematic diagram of the installation of the ring gasket body.

[0021] In the figure: 1. Ring gasket body; 2. Lifting hole; 3. Fixing rod; 4. Lifting ring; 5. Connecting rope; 6. Hook; 7. First flange; 8. Second flange; 9. Bolt; 10. Nut; 11. First sealing surface; 12. Second sealing surface; 13. Sealing groove. DETAILED DESCRIPTION

[0022] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In the embodiment of the present utility model,

[0024] An extra large diameter metal octagonal sealing ring gasket, such as Figure 1-Figure 5 As shown, it comprises a ring gasket body 1 , the end surface of the ring gasket body 1 is provided with a hanging hole 2 , a fixing rod 3 is installed in the hanging hole 2 , and one end of the fixing rod 3 is integrally connected with a hanging ring 4 .

[0025] The lifting ring 4 is connected to a connecting rope 5 , and a hook 6 is passed through the connecting rope 5 .

[0026] A first flange 7 and a second flange 8 are provided on the outer side of the ring gasket body 1 . A bolt 9 is provided between the first flange 7 and the second flange 8 . Nuts 10 are threadedly connected at both ends of the bolt 9 .

[0027] The first sealing surfaces 11 are provided on the upper and lower sides of the inner diameter of the ring gasket body 1 .

[0028] Second sealing surfaces 12 are provided on the upper and lower sides of the outer diameter of the ring gasket body 1 .

[0029] The first flange 7 and the second flange 8 are both provided with sealing grooves 13 , and the ring gasket body 1 is located in the two sealing grooves 13 .

[0030] The outer diameter of the ring gasket body 1 is also provided with a lifting hole 2.

[0031] Working principle:

[0032] The utility model is a metal octagonal sealing ring gasket with two lifting holes on the outer diameter and end face. It is suitable for sealing connection parts of pipeline flanges, wellhead devices and valves with super-large diameters and specifications above DN2000. It has the function of being installed and replaced horizontally and vertically by lifting equipment, which not only saves some manual installation operation costs, but also reduces operational safety hazards. At the same time, it can effectively avoid surface damage to the equipment sealing surface caused by the use of disassembly tools during manual disassembly.

[0033] A lifting hole 2 is added to the traditional large-caliber metal sealing ring gasket, so that the ring gasket body 1 has a lifting function. After the lifting ring 4 is installed in the lifting hole 2, the ring gasket can be lifted using lifting equipment, making it easier to carry;

[0034] When installing horizontally, the ring gasket is horizontally lifted and placed in the flange groove through the end face lifting ring 4. The lifting ring 4 is removed after placement. When repairing, replacing or removing, each lifting ring 4 is installed in the lifting hole 2, and the ring gasket body 1 is lifted horizontally by lifting equipment, which avoids the ring gasket body 1 from being easily bumped when placed and the damage to the sealing groove 13 caused by tools such as crowbars when removing it, resulting in poor sealing effect; when installing vertically, the outer diameter lifting ring 4 is used to suspend the ring gasket body 1 vertically in the sealing groove 13 on one side, and then the left and right sealing grooves 13 are closed and the lifting ring 4 is removed; the removal process is to reverse the installation process. The design of the lifting hole 2 on the ring gasket body 1 solves the problem that the ring gasket is difficult to carry and the flange groove sealing surface is easily damaged by tools during disassembly. The assembly method of the lifting ring 4 is easy and convenient, while reducing labor waste and greatly increasing work efficiency.

[0035] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A metal octagonal sealing ring gasket with an extra-large diameter, comprising a ring gasket body (1), characterized in that: The end surface of the ring gasket body (1) is provided with a hanging hole (2), a fixing rod (3) is installed in the hanging hole (2), and one end of the fixing rod (3) is integrally connected with a hanging ring (4).

2. The ultra-large-caliber metal octagonal sealing ring gasket according to claim 1, characterized in that: The lifting ring (4) is connected to a connecting rope (5), and the connecting rope (5) is provided with a hook (6).

3. The ultra-large-caliber metal octagonal sealing ring gasket according to claim 1, characterized in that: A first flange (7) and a second flange (8) are provided on the outer side of the ring gasket body (1); a bolt (9) is provided between the first flange (7) and the second flange (8); and nuts (10) are threadedly connected at both ends of the bolt (9).

4. The ultra-large-caliber metal octagonal sealing ring gasket according to claim 1, characterized in that: First sealing surfaces (11) are provided on the upper and lower sides of the inner diameter of the ring gasket body (1).

5. The ultra-large-caliber metal octagonal sealing ring gasket according to claim 1, characterized in that: Second sealing surfaces (12) are provided on the upper and lower sides of the outer diameter of the ring gasket body (1).

6. The ultra-large-caliber metal octagonal sealing ring gasket according to claim 3, characterized in that: The first flange (7) and the second flange (8) are both provided with sealing grooves (13), and the ring gasket body (1) is located in the two sealing grooves (13).

7. The ultra-large-caliber metal octagonal sealing ring gasket according to claim 1, characterized in that: The outer diameter of the ring gasket body (1) is also provided with a lifting hole (2).

Images