Ram blowout preventer sealing assembly

Abstract

The utility model discloses a flashboard blowout preventer sealing assembly, which belongs to the technical field of flashboard blowout preventers and comprises a flashboard, two first mounting grooves, two second mounting grooves and a third mounting groove are arranged in the flashboard, and the first mounting grooves, the second mounting grooves and the third mounting groove are arranged in the flashboard. First electric heating pieces, first gaskets, first heat insulation pieces and first sealing gaskets are fixed to the inner sides of the first mounting grooves, first pressing edges are arranged on the inner sides of the circumferences of the first sealing gaskets, fixing plates are fixed to the inner sides of the two second mounting grooves, and second pressing edges are arranged on the outer sides of the circumferences of the fixing plates. When leakage happens to the flashboard blowout preventer, the first sealing gasket and the second sealing gasket deform to fill the sealing damaged position, the temporary repairing effect is achieved, and the problems that due to the fact that an existing flashboard blowout preventer sealing assembly and a sealing ring on a flashboard are prone to being damaged in the severe environment, sealing force is reduced, and leakage happens are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ram blowout preventers, and more specifically relates to a sealing component of a ram blowout preventer. Background Art

[0002] BOP is used to close the wellhead during operations such as oil testing, well repair and completion to prevent blowout accidents. It combines full sealing and semi-sealing functions into one, and has the characteristics of simple structure, easy operation and high pressure resistance. It is a safety sealing wellhead device commonly used in oil fields to prevent blowouts. The existing ram blowout preventer sealing assembly and the sealing ring on the ram are easily damaged in harsh environments, resulting in a decrease in sealing force and leakage. Therefore, a ram blowout preventer sealing assembly is proposed. Utility Model Content

[0003] In response to the deficiencies of the prior art, the present invention provides a ram blowout preventer sealing assembly. When a leak occurs in the ram blowout preventer, the first sealing gasket and the second sealing gasket deform to fill the damaged seal, thereby playing a temporary repair role. This solves the problem of the existing ram blowout preventer sealing assembly proposed in the above background technology, in which the sealing ring on the ram is easily damaged in harsh environments, resulting in a decrease in sealing force and leakage.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a gate blowout preventer sealing assembly, including a gate, wherein two first mounting grooves, two second mounting grooves and one third mounting groove are provided inside the gate, and a first electric heating plate, a first gasket, a first thermal insulation plate and a first sealing gasket are fixed on the inner side of the first sealing gasket, a first pressure edge is provided on the inner side of the circumference of the first sealing gasket, a fixing plate is fixed on the inner side of the two second mounting grooves, a second pressure edge is provided on the outer side of the circumference of the fixing plate, and the outer side of the second pressure edge abuts against the outer side of the first pressure edge, a card slot is provided on the side of the fixing plate close to the third mounting groove, a first groove is provided on one side of the fixing plate, a second electric heating plate, a second gasket, a second thermal insulation plate and a second sealing gasket are fixed on the inner side of the third mounting groove, and a second groove is provided on one side of the second sealing gasket.

[0005] As a preferred technical solution of the present invention, the first mounting groove, the second mounting groove and the third mounting groove are all semicircular structures, and the center of the first mounting groove coincides with the center of the second mounting groove and the third mounting groove.

[0006] As a preferred technical solution of the present invention, the first electric heater, the first gasket, the first thermal insulation sheet and the first sealing gasket are all arc-shaped structures, and the center of the first electric heater coincides with the center of the first gasket, the first thermal insulation sheet and the first sealing gasket.

[0007] As a preferred technical solution of the present invention, the clamping groove is an arc-shaped structure, and the center of the clamping groove coincides with the center of the second installation groove.

[0008] As a preferred technical solution of the present invention, the second electric heating plate, the second gasket and the second thermal insulation plate are all arc-shaped structures, and the centers of the second electric heating plate, the second gasket, the second thermal insulation plate and the second sealing gasket coincide with each other.

[0009] As a preferred technical solution of the present invention, the position of the second groove corresponds to the position of the first groove.

[0010] As a preferred technical solution of the present invention, the first gasket and the second gasket are both made of high expansion alloy material.

[0011] The utility model provides a ram blowout preventer sealing assembly, which has the following beneficial effects:

[0012] 1. When the ram blowout preventer leaks, the first and second sealing gaskets deform to fill the damaged seal, thereby temporarily repairing the problem. This solves the problem of the existing ram blowout preventer sealing assembly, in which the sealing ring on the ram is easily damaged in harsh environments, resulting in a decrease in sealing force and leakage.

[0013] 2. The sealing assembly of the ram blowout preventer has a reasonable and compact structure and good performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the ram blowout preventer sealing assembly of the utility model.

[0015] Figure 2 The figure is a schematic diagram of the disassembled structure of the ram blowout preventer sealing assembly of the utility model.

[0016] Figure 3 The utility model is a sealing component of the gate blowout preventer Figure 2 A is an enlarged schematic diagram.

[0017] Figure 4 The utility model is a sealing component of the gate blowout preventer Figure 2 Enlarged schematic diagram of point B in FIG.

[0018] In the figure: 1. gate; 2. first mounting groove; 3. second mounting groove; 4. third mounting groove; 5. first thermal insulation plate; 6. first sealing gasket; 7. first pressing edge; 8. fixing plate; 9. second pressing edge; 10. slot; 11. first groove; 12. second electric heating plate; 13. second gasket; 14. second thermal insulation plate; 15. second sealing gasket; 16. second groove; 17. first electric heating plate; 18. first gasket. DETAILED DESCRIPTION

[0019] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0022] See also Figures 1 to 4The utility model provides a technical solution: a gate blowout preventer sealing assembly, comprising a gate 1, wherein the gate 1 has two first mounting grooves 2, two second mounting grooves 3 and a third mounting groove 4, a first gasket 17, a first gasket 18, a first thermal insulation plate 5 and a first sealing gasket 6 fixed on the inner side of the first mounting groove 2, a first pressure edge 7 is provided on the inner side of the circumference of the first sealing gasket 6, a fixing plate 8 is fixed on the inner side of the two second mounting grooves 3, a second pressure edge 9 is provided on the outer side of the circumference of the fixing plate 8, the outer side of the second pressure edge 9 abuts against the outer side of the first pressure edge 7, a card slot 10 is provided on the side of the fixing plate 8 close to the third mounting groove 4, a first groove 11 is provided on one side of the fixing plate 8, a second electric heating plate 12, a second gasket 13, a second thermal insulation plate 14 and a second sealing gasket 15 are fixed on the inner side of the third mounting groove 4, and a second sealing gasket 15 is provided on one side. There is a second groove 16, the first mounting groove 2 and the second mounting groove 3 and the third mounting groove 4 are all semicircular structures, the center of the first mounting groove 2 coincides with the center of the second mounting groove 3 and the third mounting groove 4, the first gasket 17 and the first gasket 18, the first thermal insulation plate 5 and the first sealing gasket 6 are all arc-shaped structures, the center of the first gasket 17 coincides with the center of the first gasket 18, the first thermal insulation plate 5 and the first sealing gasket 6, the card groove 10 is an arc-shaped structure, the center of the card groove 10 coincides with the center of the second mounting groove 3, the second electric heating plate 12 and the second gasket 13 and the second thermal insulation plate 14 are all arc-shaped structures, the second electric heating plate 12 and the second gasket 13, the second thermal insulation plate 14 and the second sealing gasket 15 coincide, the position of the second groove 16 corresponds to the position of the first groove 11, and the first gasket 18 and the second gasket 13 are both made of high expansion alloy;

[0023] When the gate blowout preventer leaks, the first electric heating plate 17 in the first mounting groove 2 heats the first gasket 18. Since the first gasket 18 is made of a high-expansion alloy, its heated volume increases, thereby pushing the first thermal insulation plate 5 and the first sealing gasket 6 outward, causing the first sealing gasket 6 to protrude from the first mounting groove 2. The deformation of the first sealing gasket 6 fills the damaged seal, thereby playing a temporary repair role. At the same time, the second electric heating plate 12 in the third mounting groove 4 heats the second sealing gasket 15. Since the second sealing gasket 15 is made of a high-expansion alloy, its heated volume increases, thereby pushing the second thermal insulation plate 14 and the second sealing gasket 15 outward, causing the second sealing gasket 15 to protrude from the third mounting groove 4. The deformation of the second sealing gasket 15 fills the damaged seal, thereby playing a temporary repair role. Through the above process, the problem of the existing gate blowout preventer sealing assembly, in which the sealing ring on the gate is easily damaged in harsh environments, resulting in a decrease in sealing force and leakage, is solved.

[0024] Specific usage and function of this embodiment: When the gate blowout preventer leaks, the utility model heats the first gasket 18 through the first electric heating plate 17 in the first mounting groove 2. Since the first gasket 18 is made of a high-expansion alloy, the heated volume increases, thereby pushing the first thermal insulation plate 5 and the first sealing gasket 6 outward, so that the first sealing gasket 6 protrudes from the first mounting groove 2. The damaged seal is filled by the deformation of the first sealing gasket 6, thereby playing a temporary repair role. At the same time, the second electric heating plate 12 in the third mounting groove 4 heats the second sealing gasket 15. Since the second sealing gasket 15 is made of a high-expansion alloy, the heated volume increases, thereby pushing the second thermal insulation plate 14 and the second sealing gasket 15 outward, so that the second sealing gasket 15 protrudes from the third mounting groove 4. The damaged seal is filled by the deformation of the second sealing gasket 15, thereby playing a temporary repair role.

[0025] 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 ram blowout preventer sealing assembly, comprising a ram (1), characterized in that: The gate plate (1) is provided with two first mounting grooves (2), two second mounting grooves (3) and a third mounting groove (4) inside. A first electric heating plate (17), a first gasket (18), a first heat insulating plate (5) and a first sealing gasket (6) are fixed on the inner side of the first mounting groove (2). A first pressing edge (7) is provided on the inner side of the circumference of the first sealing gasket (6). A fixing plate (8) is fixed on the inner side of each of the two second mounting grooves (3). A second fixing plate (8) is provided on the outer side of the circumference of the fixing plate (8). A pressing edge (9), the outer side of the second pressing edge (9) is in contact with the outer side of the first pressing edge (7), a clamping groove (10) is provided on the side of the fixing plate (8) close to the third installation groove (4), a first groove (11) is provided on one side of the fixing plate (8), a second electric heating plate (12), a second gasket (13), a second thermal insulation plate (14) and a second sealing gasket (15) are fixed on the inner side of the third installation groove (4), and a second groove (16) is provided on one side of the second sealing gasket (15).

2. The ram blowout preventer sealing assembly according to claim 1, characterized in that: The first mounting groove (2), the second mounting groove (3) and the third mounting groove (4) are all semicircular structures, and the center of the first mounting groove (2) coincides with the center of the second mounting groove (3) and the third mounting groove (4).

3. The ram blowout preventer sealing assembly according to claim 1, characterized in that: The first electric heating plate (17), the first gasket (18), the first thermal insulation plate (5) and the first sealing gasket (6) all have an arc-shaped structure, and the center of the first electric heating plate (17) coincides with the center of the first gasket (18), the first thermal insulation plate (5) and the first sealing gasket (6).

4. The ram blowout preventer sealing assembly according to claim 1, characterized in that: The clamping slot (10) is an arc-shaped structure, and the center of the clamping slot (10) coincides with the center of the second installation slot (3).

5. The ram blowout preventer sealing assembly according to claim 1, characterized in that: The second electric heating plate (12), the second gasket (13) and the second thermal insulation plate (14) are all in an arc-shaped structure, and the centers of the second electric heating plate (12), the second gasket (13), the second thermal insulation plate (14) and the second sealing gasket (15) coincide with each other.

6. The ram blowout preventer sealing assembly according to claim 1, characterized in that: The position of the second groove (16) corresponds to the position of the first groove (11).

7. The ram blowout preventer sealing assembly according to claim 1, characterized in that: The first gasket (18) and the second gasket (13) are both made of high expansion alloy material.

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