Quick connector for marine drilling riser
By using a combination design of threaded columns with fastening nuts and fastening screws and fastening grooves in the marine drilling water quadrip quick joint, the problems of unstable connection and insufficient sealing performance of existing quick joints are solved, achieving higher connection stability and sealing performance.
Patent Information
- Application Number
- CN202422108683.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-28
AI Technical Summary
The existing rapid joints of marine drilling water pipes have problems such as unstable connections, easy to cause shaking, reduced rigidity and insufficient sealing performance, which leads to easy loosening between the male and female joints, affecting the stability of use.
A quick joint for marine drilling water barrier pipes was designed, and multiple threaded columns and fastening nuts were used to achieve the fixation of the male joint and the female joint. At the same time, multiple fastening screws and fastening grooves were used to achieve the re-fixation of the male joint and the female joint, and the sealing performance was improved through the sealing ring.
It effectively improves the connection stability between the male and female joints, reduces the risk of loosening, improves the use stability and sealing performance of the fast joints, and enhances the bending resistance.
Smart Images
Figure CN223034930U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of quick connectors, and particularly relates to a quick connector for an offshore drilling riser. Background Technique
[0002] The drilling riser is an important equipment for deep - sea oil and gas development and has developed rapidly in recent years. The technology for selecting and configuring the offshore riser system is the core technology of the offshore riser system. The loads borne by the connectors used to connect the risers mainly include the tensile force, internal pressure, external pressure, bending moment, and temperature influence of the riser. Therefore, the selection of the offshore riser system mainly considers the strength and sealing performance of the connectors.
[0003] At present, most of the drilling risers used in deep - sea oil development are segmented risers with quick connectors. The existing quick connectors generally include a male connector and a female connector. Most of the male and female connectors are connected by threads, which have problems such as unstable connection, easy shaking, reduced rigidity, and insufficient sealing performance. In some cases, the male and female connectors even become loose, thus affecting the use stability of the quick connector and needing to be improved. Summary of the Utility Model
[0004] In order to solve all or part of the above problems, the purpose of the utility model is to provide a quick connector for an offshore drilling riser, which can improve the connection stability between quick connectors, ensure the rigid strength and sealing performance of the quick connector, and improve the use stability of the quick connector.
[0005] The utility model provides a quick connector for an offshore drilling riser, which includes a male connector and a female connector. An installation ring is fixedly sleeved on the female connector. A plurality of threaded columns are arranged at the end of the male connector. A plurality of installation holes are penetrated through the installation ring. The plurality of threaded columns correspond to the plurality of installation holes one by one, and the plurality of threaded columns respectively pass through the corresponding installation holes. A fastening nut is threadedly connected to each threaded column, and the fastening nut is used to press and fix the installation ring on the end face of the male connector. A plurality of fastening screws are threadedly connected to the male connector. A plurality of fastening grooves are arranged on the outer side wall of the female connector. The plurality of fastening screws correspond to the plurality of fastening grooves one by one, and the plurality of fastening screws are respectively threadedly connected to the corresponding fastening grooves.
[0006] Optionally, the installation ring is integrally formed with the female connector.
[0007] Optionally, the plurality of threaded columns and the plurality of fastening screws are arranged at equal intervals along the circumferential direction of the male connector.
[0008] Optionally, the end of the female connector is inserted into the male connector, and the outer side wall of the female connector is in close contact with the inner side wall of the male connector.
[0009] Optionally, a diversion slope is provided at the port where the female connector is inserted into one end of the male connector.
[0010] Optionally, a seal is achieved between the mounting ring and the male connector through a sealing ring.
[0011] Optionally, a relief groove is provided along the circumferential direction of the side wall of the mounting ring, the sealing ring is embedded in the relief groove, and the sealing ring abuts against the end face of the male connector.
[0012] Optionally, internal threads for threaded connection of the riser are respectively provided on the inner side walls of the male connector and the female connector.
[0013] Optionally, anti-rust layers are respectively provided on the fastening screws and the threaded posts.
[0014] As can be seen from the above technical solutions, the quick connector for marine drilling riser provided by the present utility model has the following advantages:
[0015] This quick connector utilizes the cooperation of multiple threaded posts and fastening nuts to fix the male connector and the female connector. At the same time, the cooperation of multiple fastening screws and fastening grooves is used to fix the male connector and the female connector again, effectively improving the connection stability between the male connector and the female connector, reducing the risk of loosening of the male connector and the female connector, and thus improving the use stability of the quick connector. At the same time, the cooperation of the threaded post and the fastening nut can not only quickly locate the installation positions of the male connector and the female connector, but also improve the anti-bending ability between the male connector and the female connector to improve the rigid strength between the male connector and the female connector. Moreover, the end of the female connector is tightly inserted into the male connector, and a sealing ring is provided between the mounting ring and the male connector, which can effectively improve the sealing performance between the male connector and the female connector.
[0016] Other features and advantages of the present utility model will be described in the subsequent specification. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The drawings are used to provide a further understanding of the technical solutions of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the technical solutions of the present utility model and do not constitute a limitation to the technical solutions of the present utility model.
[0018] Figure 1 is a schematic diagram of the overall structure of the quick connector in the embodiment of the present utility model;
[0019] Figure 2 is a schematic diagram of the structure of the female connector in the embodiment of the present utility model;
[0020] Figure 3 is Figure 1 An enlarged schematic view of area A in
[0021] Explanation of reference numerals:
[0022] 1. Male connector; 2. Female connector; 3. Internal thread; 4. Threaded post; 5. Mounting ring; 6. Mounting hole; 7. Tightening nut; 8. Tightening screw; 9. Tightening groove; 10. Sealing ring; 11. Relief groove; 12. Flow guiding inclined surface. Detailed implementation manners
[0023] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be arbitrarily combined with each other.
[0024] As Figure 1 、 Figure 2 、 Figure 3 shown in the embodiments of the present utility model, a quick connector for a marine drilling riser is disclosed, which includes a male connector 1 and a female connector 2. The end of the female connector 2 is tightly inserted into the male connector 1, that is, the outer side wall of the female connector 2 is tightly abutted against the inner side wall of the male connector 1. At the same time, internal threads 3 for threaded connection of the riser are respectively provided on the inner side walls of the male connector 1 and the female connector 2 to achieve the quick connection between the riser and the quick connector.
[0025] In one embodiment, as Figure 1 、 Figure 2 shown, a plurality of threaded posts 4 are fixedly connected to the end of the male connector 1, and the plurality of threaded posts 4 are arranged at equal intervals along the circumferential direction of the male connector 1. A mounting ring 5 is fixedly sleeved on the female connector 2, and a plurality of mounting holes 6 are provided through the mounting ring 5. The plurality of threaded posts 4 correspond to the plurality of mounting holes 6 one by one, and the plurality of threaded posts 4 respectively pass through the corresponding mounting holes 6. A tightening nut 7 is respectively threadedly connected to each threaded post 4, and the tightening nut 7 is used to press and fix the mounting ring 5 on the end face of the male connector 1 to achieve the fixation between the male connector 1 and the female connector 2.
[0026] In one embodiment, as Figure 1 、 Figure 2 shown, a plurality of tightening screws 8 are threadedly connected to the male connector 1, and the plurality of tightening screws 8 are arranged at equal intervals along the circumferential direction of the male connector 1. At the same time, a plurality of tightening grooves 9 are provided on the outer side wall of the female connector 2. The plurality of tightening screws 8 correspond to the plurality of tightening grooves 9 one by one, and the plurality of tightening screws 8 are respectively threadedly connected to the corresponding tightening grooves 9 to achieve the re-fixation between the male connector 1 and the female connector 2.
[0027] The quick connector for marine drilling riser in this embodiment utilizes the cooperation of multiple threaded posts 4 and fastening nuts 7 to fix the male connector 1 and the female connector 2. At the same time, the cooperation of multiple fastening screws 8 and fastening grooves 9 is used to fix the male connector 1 and the female connector 2 again, effectively improving the connection stability between the male connector 1 and the female connector 2, reducing the risk of loosening of the male connector 1 and the female connector 2, and thus improving the service stability of the quick connector. At the same time, the cooperation of the threaded post 4 and the fastening nut 7 can not only quickly locate the installation positions of the male connector 1 and the female connector 2, but also improve the anti-bending ability between the male connector 1 and the female connector 2, thereby improving the rigid strength between the male connector 1 and the female connector 2.
[0028] In this embodiment, the mounting ring 5 is integrally formed and connected with the female connector 2 to ensure the connection structural strength between the mounting ring 5 and the female connector 2. At the same time, the threaded post 4 is integrally formed and connected with the male connector 1 to ensure the connection structural strength between the threaded post 4 and the male connector 1.
[0029] In one embodiment, as Figure 1 、 Figure 3 shown, the mounting ring 5 and the male connector 1 are sealed through a sealing ring 10 to improve the sealing effect between the male connector 1 and the female connector 2. In this embodiment, a relief groove 11 is provided along the circumferential direction of the side wall of the mounting ring 5, the sealing ring 10 is embedded in the relief groove 11, and the sealing ring 10 abuts against the end face of the male connector 1. Of course, in other embodiments, the sealing ring 10 can also be provided on the end face of the male connector 1.
[0030] In one embodiment, as Figure 1 、 Figure 2 shown, a flow guiding inclined surface 12 is integrally formed at the port where the female connector 2 is inserted into one end of the male connector 1, that is, the inner wall at the port of the female connector 2 is in an outward expanding shape to reduce the water flow resistance and improve the water flow smoothness.
[0031] In one embodiment, as Figure 1 、 Figure 2 shown, anti-rust oil is respectively applied on the fastening screws 8 and the threaded posts 4, so that the anti-rust oil forms an anti-rust layer on the surfaces of the fastening screws 8 and the threaded posts 4 to achieve the anti-rust protection of the fastening screws 8 and the threaded posts 4 and extend their service lives.
[0032] As can be seen from the above, compared with the existing quick connectors, using the quick connector in the present utility model can improve the connection stability between the quick connectors, ensure the rigid strength and sealing performance of the quick connectors, and improve the service stability of the quick connectors.
[0033] It should be noted that unless otherwise specified, the technical terms or scientific terms used in the present utility model should have the ordinary meanings understood by those skilled in the art to which the present utility model belongs.
[0034] In addition, terms such as "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present utility model, the meaning of "a plurality of" is more than two, unless otherwise specifically defined.
[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present utility model, and they should all be covered within the scope of the claims and the description of the present utility model. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A quick connector for an offshore drilling riser, comprising a male connector (1) and a female connector (2), characterized in that: The female connector (2) is provided with a mounting ring (5) on a fixed sleeve, a plurality of threaded columns (4) are provided on the end of the male connector (1), a plurality of mounting holes (6) are provided through the mounting ring (5), the plurality of threaded columns (4) correspond to the plurality of mounting holes (6) one by one, and the plurality of threaded columns (4) respectively pass through the corresponding mounting holes (6), each of the threaded columns (4) is respectively threadedly connected with a fastening nut (7), and the fastening nut (7) is used to press and fix the mounting ring (5) on the end surface of the male connector (1), a plurality of fastening screws (8) are threadedly connected to the male connector (1), and a plurality of fastening grooves (9) are provided on the outer wall of the female connector (2), the plurality of fastening screws (8) correspond to the plurality of fastening grooves (9) one by one, and the plurality of fastening screws (8) are respectively threadedly connected with the corresponding fastening grooves (9).
2. The quick connector for offshore drilling riser according to claim 1, characterized in that: The mounting ring (5) is integrally formed and connected to the female connector (2).
3. The quick connector for offshore drilling riser according to claim 1, characterized in that: The plurality of threaded columns (4) and the plurality of fastening screws (8) are respectively arranged at equal intervals along the circumference of the male connector (1).
4. The quick connector for offshore drilling riser according to claim 1, characterized in that: The end of the female connector (2) is inserted into the male connector (1), and the outer side wall of the female connector (2) is in tight contact with the inner side wall of the male connector (1).
5. The quick connector for offshore drilling riser according to claim 4, characterized in that: A flow guiding slope (12) is provided at the port at one end of the female connector (2) inserted into the male connector (1).
6. The quick connector for offshore drilling riser according to claim 1, characterized in that: The installation ring (5) and the male connector (1) are sealed via a sealing ring (10).
7. The quick connector for offshore drilling riser according to claim 6, characterized in that: The side wall of the mounting ring (5) is provided with a clearance groove (11) along its circumference, the sealing ring (10) is embedded in the clearance groove (11), and the sealing ring (10) is pressed against the end surface of the male connector (1).
8. The quick connector for offshore drilling riser according to claim 1, characterized in that: The inner side walls of the male joint (1) and the female joint (2) are respectively provided with internal threads (3) for threaded connection of a watertight pipe.
9. The quick connector for offshore drilling riser according to claim 1, characterized in that: The fastening screw (8) and the threaded column (4) are respectively provided with an anti-rust layer.