Spherical sealing high-pressure screwed joint for ship

Abstract

The utility model provides a spherical sealing high-pressure threaded connector for a ship, and relates to the technical field of mechanical parts. The pipeline is provided with a welding pipe core, the pipeline comprises an outer sleeve nut and a spherical sealing threaded connector, the outer sleeve nut is arranged at the left end of the welding pipe core, the spherical sealing threaded connector is arranged at the right end of the welding pipe core, and first internal threads are arranged on the inner side of the outer sleeve nut. A first external thread is arranged on the outer side of the spherical sealing threaded connector, and the first internal thread and the first external thread are connected and locked. Spherical surface sealing is used, the actual working pressure can reach 40 Mpa, the test pressure can reach 60 Mpa, and the requirement of a marine connector high-pressure pipeline is met.

Description

Technical Field

[0001] This utility model relates to the field of mechanical parts technology, and in particular to a marine spherical sealing high-pressure threaded joint. Background Technology

[0002] A threaded connector is a fitting used to connect pipes, fittings, or other equipment. Its main function is to achieve a tight connection through the tightening of the threads. A threaded connector typically consists of two parts: an internal thread and an external thread. The internal and external threads are used to securely connect objects together. As a component of a machine, the threaded connector needs to provide a connection function for the machine over a long period; therefore, the sealing performance of the connection is crucial, requiring effective sealing treatment to prevent internal rust and damage.

[0003] In the field of marine seawater pipelines, existing marine threaded joints, when connected to equipment of different materials, suffer from severe electrochemical corrosion at the sealing surface when the medium flows, leading to sealing failure. In addition, the original gasket seals, with a nominal pressure of 1.6-10 MPa, do not meet the high-pressure application requirements.

[0004] In the prior art, patent document CN105318117U discloses a threaded connector, including a first threaded connector body, a second threaded connector body, a sealing gasket, and an outer nut. The shoulder of the first threaded connector body is connected to the second threaded connector body via the outer nut, and the shoulder of the first threaded connector body is provided with a composite coating. The sealing gasket is disposed between the first threaded connector body and the second threaded connector body. By adding a composite coating to the surface of the first threaded connector body and providing a sealing gasket between the first and second threaded connector bodies, the threaded connector possesses good insulation and corrosion resistance, preventing electrochemical corrosion at the sealing surface, avoiding sealing surface failure, and extending the service life of the threaded connector.

[0005] Although existing technologies have solved the sealing problem to some extent through gaskets, in actual operation, poor sealing performance and gaskets not meeting the requirements for high-pressure use still occur. Utility Model Content

[0006] To address the shortcomings mentioned above, this utility model provides a marine spherical seal high-pressure threaded joint, which uses a spherical seal, allowing for an actual working pressure of up to 40 MPa and a test pressure of up to 60 MPa, thus meeting the high-pressure pipeline requirements for marine joints.

[0007] To address the aforementioned problems, this utility model provides a marine spherical sealing high-pressure threaded joint, comprising a pipeline with a welded core on the pipeline, including an outer nut and a spherical sealing threaded joint. The outer nut is located at the left end of the welded core, and the spherical sealing threaded joint is located at the right end of the welded core. The inner side of the outer nut has a first internal thread, and the outer side of the spherical sealing threaded joint has a first external thread. The first internal thread and the first external thread are connected and locked together.

[0008] Preferably, the welded core is provided with a tapered joint, which is assembled and connected to the first internal thread of the outer nut.

[0009] Preferably, the right end of the tapered joint is connected to the left end of the spherical threaded joint via a sealing ring.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] This utility model uses a spherical seal, and the actual working pressure can reach up to 40 MPa, and the test pressure can reach 60 MPa, which meets the requirements of high-pressure pipelines for marine joints. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of an embodiment of the present invention. Detailed Implementation

[0013] To make the objectives, technical solutions and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and examples, but the examples given are not intended to limit the present utility model.

[0014] like Figure 1 As shown, an embodiment of this utility model includes a pipeline, on which a welded core is provided.

[0015] In this embodiment, the welded core is provided with an outer nut and a spherical sealing threaded joint. The outer nut is located at the left end of the welded core, and the spherical sealing threaded joint is located at the right end of the welded core. The inner side of the outer nut is provided with a first internal thread, and the outer side of the spherical sealing threaded joint is provided with a first external thread. The right end of the first internal thread is connected and locked with the first external thread.

[0016] In this embodiment, a tapered connector is provided at the left end of the welded core, and the tapered connector is assembled and connected to the left end of the first internal thread of the outer nut.

[0017] In this embodiment, the right end of the tapered connector is connected to the left end of the spherical threaded connector through a sealing ring.

[0018] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, without explaining the electrical control.

[0019] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0020] In the description of this specification, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only to facilitate the description of the technical solution of this patent and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this patent application, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In this specification, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this specification according to the specific circumstances.

[0023] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0025] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A marine high pressure threaded joint with a spherical seal comprising a pipe, a welded pin being provided on the pipe, characterized in that, The threaded joint comprises a sleeve nut and a spherical sealing threaded joint, the sleeve nut is arranged at the left end of the welded pipe core, the spherical sealing threaded joint is arranged at the right end of the welded pipe core, wherein the inner side of the sleeve nut is provided with a first internal thread, the outer side of the spherical sealing threaded joint is provided with a first external thread, and the first internal thread is connected and locked with the first external thread.

2. A high pressure spherical seal marine thread joint as claimed in claim 1, wherein, A tapered surface joint is arranged on the welded pipe core, and the tapered surface joint is assembled and connected with the first internal thread of the sleeve nut.

3. A high pressure spherical seal marine threaded joint as claimed in claim 2, wherein, The right end of the tapered surface joint is connected with the left end of the spherical threaded joint through a sealing ring.

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