Engine high-pressure pipeline component and ship engine

Abstract

The utility model discloses an engine high-pressure pipeline component and a ship engine, solves the problem that in the prior art, a high-pressure pipeline is difficult to install, and has the beneficial effect that the high-pressure pipeline component can be conveniently installed in a limited space, and the specific scheme is as follows: the engine high-pressure pipeline component comprises a plurality of sections of pipelines, every two adjacent pipeline sections are connected through an annular component, the pipeline section connected with the connector flange end is also connected with the connector flange end through the annular component, at least one end of each pipeline section is provided with the pipeline flange end, and the outer diameter of the annular component is larger than or equal to the outer diameter of the pipeline flange end or the connector flange end. The pipeline flange end and the connector flange end are each provided with a convex part, the convex parts are annularly provided with a first sealing piece and a second sealing piece, the second sealing pieces are located on the outer sides of the first sealing pieces, the convex parts provided with the first sealing pieces and the second sealing pieces are clamped into the hollow positions of the annular parts, and the flange ends of the two adjacent sections of pipelines and the annular parts are fastened through the first fastening pieces.

Description

Technical Field

[0001] The utility model relates to the technical field of ship engines, in particular to an engine high-pressure pipeline component and a ship engine. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] As the main power source of large-scale long-distance ships, low-speed engines are designed and installed with high-pressure pipelines. The life of a ship engine is generally as long as the ship, and it needs to be used continuously for 25-30 years. Therefore, the stability of the high-pressure pipeline needs to be guaranteed. In the face of large excitation forces and the resulting vibrations of the engine, the high-pressure pipeline is required to remain stable. Therefore, it is necessary to ensure accuracy and avoid internal stress during the manufacturing stage of the high-pressure pipe.

[0004] The disclosed engine high-pressure pipelines are all directly manufactured and installed according to the theoretical dimensions. Regardless of whether it is a low-MPa or high-MPa high-pressure pipeline, if it is directly manufactured (welded connection) and installed, the inventors have found the following problems: because the engine involves many parts, the engine has insufficient installation space reserved for the high-pressure pipeline, and the high-pressure pipeline also needs to be docked with the joint. The already manufactured high-pressure pipeline has the problem of being difficult to install. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an engine high-pressure pipeline component, which realizes effective use of space and facilitates connection with high-pressure pipeline joints in the case of complex engine layout, thereby ensuring the smooth operation of the ship's low-speed engine.

[0006] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] An engine high-pressure pipeline component comprises a plurality of pipeline sections, wherein two adjacent pipeline sections are connected by an annular component, and a pipeline section connected to a joint flange end is also connected to the joint flange end by an annular component, and at least one end of each pipeline section is provided with a pipeline flange end, and the outer diameter of the annular component is greater than or equal to the outer diameter of the pipeline flange end or the joint flange end, and the pipeline flange end and the joint flange end are both provided with convex parts, and a first seal and a second seal are circumferentially provided on the convex parts, and the second seal is located on the outside of the first seal, and the convex part equipped with the first seal and the second seal is inserted into the hollow part of the annular component, and a first fastener fastens the adjacent two pipeline flange ends and the annular component, and a second fastener fastens the end-side pipeline flange end, the annular component and the joint flange end.

[0008] As described above, the high-pressure pipeline components are connected between pipelines and between the end pipelines and the joint flange ends through annular components rather than welding. This facilitates the installation of high-pressure pipeline components in smaller spaces of the engine. After the installation of the end pipelines is completed, the two adjacent pipeline sections in the middle are connected through annular components, which facilitates the rapid installation of high-pressure pipeline components in insufficient installation space and also facilitates the connection with the joint flange ends.

[0009] In the engine high-pressure pipeline component as described above, the width of the second sealing member is greater than the width of the first sealing member;

[0010] The width of the second sealing member is smaller than or equal to the thickness of the protrusion.

[0011] In the engine high-pressure pipeline component as described above, sealing gaskets are respectively arranged between the pipeline flange end, the joint flange end and the annular component to play a further sealing role.

[0012] In the engine high-pressure pipeline component as described above, a plurality of first sealing members are arranged circumferentially on the convex portion;

[0013] The convex part is provided with a groove in an annular direction, and each first sealing member is respectively inserted into the corresponding groove to prevent the first sealing member from moving during the installation of the convex part;

[0014] The first sealing member is a sealing ring.

[0015] In the above-mentioned high-pressure pipeline component of an engine, the convex part is a cylindrical convex part with a hole, and the outer diameter of the first sealing member arranged in the circumferential direction of the convex part gradually decreases from one side of the convex part close to the pipeline flange end or the joint flange end to the other side of the convex part, which is conducive to the convex part being inserted into the hollow part of the annular component, and the outer diameter of the first sealing member gradually increases after the convex part is inserted, which is conducive to ensuring the tightness of the combination of the convex part and the annular component;

[0016] The hollow part of the annular component is cylindrical in shape.

[0017] In the engine high-pressure pipeline component as described above, the convex portion is a truncated cone-shaped convex portion with a hole, and the diameter of one end of the convex portion close to the pipeline flange end or the joint flange end is larger than the diameter of the other end;

[0018] The sizes of the plurality of first sealing members provided on the protrusion are the same.

[0019] In the engine high-pressure pipeline component as described above, the shape of the hollow portion inside the annular component is two truncated cones arranged opposite to each other.

[0020] In the engine high-pressure pipeline component as described above, a limiting platform is provided on the inner annular surface of the annular component to limit the protrusion, which is beneficial for rapid positioning of the installation of the protrusion.

[0021] In the engine high-pressure pipe component as described above, the annular component has a set thickness, and the thickness of the annular component is greater than twice the thickness of the protrusion.

[0022] The engine high-pressure pipeline component as described above, wherein the outer diameters of the pipeline flange end and the joint flange end are greater than the outer diameter of the pipeline;

[0023] A plurality of first openings are circumferentially arranged at the pipeline flange end and the joint flange end, and a plurality of second openings are circumferentially arranged at the annular component, the first openings correspond to the second openings one by one, and the first fastener or the second fastener is arranged through the corresponding first opening and second opening.

[0024] In a second aspect, the utility model also provides a ship engine, which adopts the engine high-pressure pipeline component.

[0025] The beneficial effects of the above utility model are as follows:

[0026] 1) The utility model adopts the arrangement of a high-pressure pipeline component, and the pipelines and the end-side pipelines and the joint flange ends are connected by annular components instead of welding. This facilitates the installation of the high-pressure pipeline component in a small space of the engine. After the installation of the end-side pipeline is completed, the connection between the two adjacent middle sections of the pipeline is achieved through the annular component, which facilitates the rapid installation of the high-pressure pipeline component in insufficient installation space and the connection with the joint flange end, ensuring that the pipelines and the pipelines and the joint flange ends are well butted and firmly butted without welding connection, which can effectively avoid the problem that the welds generated by welding connection after the pipeline installation cannot meet the welding requirements.

[0027] 2) The utility model arranges the first seal and the second seal in the annular direction of the convex part, and the second seal is arranged on the outside of the first seal. The arrangement of the convex part realizes the preliminary snap-fit ​​connection between the pipeline flange end, the joint flange end and the annular component. The arrangement of the first seal and the second seal is conducive to ensuring the sealing of the convex connection; and the arrangement of the first fastener and the second fastener ensures the reliable connection between the pipelines and the pipeline and the joint flange end, thereby ensuring the airtightness of the high-pressure pipeline components.

[0028] 3) The utility model provides a sealing gasket between the pipeline flange end, the joint flange end and the annular component. The sealing gasket not only ensures the reliability of the connection between the pipeline flange end, the joint flange end and the annular component, but also further improves the sealing performance of the high-pressure pipeline component and can effectively avoid the internal stress generated at the connection of the high-pressure pipeline component.

[0029] 4) The convex part in the utility model can be a cylindrical convex part, and multiple first sealing parts are set on the convex part, which is conducive to the convex part being inserted into the hollow part of the annular component. After the convex part is inserted, the outer diameter of the first sealing part gradually increases, which is conducive to ensuring the tightness of the combination of the convex part and the annular component.

[0030] 5) The convex part in the utility model can be a truncated cone-shaped convex part, and the diameter of one end of the convex part is larger than the diameter of the other end, which is convenient for the convex part to enter the hollow part of the annular component and is also conducive to ensuring the sealing of the snap connection between the convex part and the annular component. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0032] Figure 1 It is an exploded schematic diagram of the connection between a pipeline flange end and an annular component in an engine high-pressure pipeline component according to one or more embodiments of the utility model.

[0033] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0034] Among them: 1. pipeline, 2. annular component, 3. pipeline flange end, 4. convex part, 5. first sealing member. DETAILED DESCRIPTION

[0035] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or their combinations;

[0037] As introduced in the background technology, there is a problem in the prior art that the installation of the high-pressure pipeline is difficult due to the limited installation space of the high-pressure pipeline in the engine. In order to solve the above technical problem, the utility model proposes an engine high-pressure pipeline component.

[0038] Embodiment 1

[0039] In a typical implementation of the present invention, reference is made to Figure 1 As shown, an engine high-pressure pipeline component includes multiple pipeline sections 1, two adjacent pipeline sections 1 are connected by an annular component 2, and a pipeline section connected to the joint flange end is also connected to the joint flange end through the annular component 2. At least one end of each pipeline section is provided with a pipeline flange end 3, the outer diameter of the annular component 2 is equal to the outer diameter of the pipeline flange end 3 or the joint flange end, and the pipeline flange end 3 and the joint flange end are both provided with a convex portion 4, and the convex portion 4 is circumferentially provided with a first seal 5 and a second seal, and the second seal is located on the outside of the first seal 5, and the convex portion equipped with the first seal 5 and the second seal is inserted into the hollow part of the annular component 2, the first fastener fastens the adjacent two pipeline flange ends 3 and the annular component 2, and the second fastener fastens the end-side pipeline flange end 3, the annular component 2 and the joint flange end.

[0040] In other examples, considering that the outer surface of the engine has a groove, the outer diameter of the annular component 2 is larger than the outer diameter of the pipe flange end 3 or the outer diameter of the joint flange end, and the side of the annular component protruding from the pipe flange end can be inserted into the groove on the outer surface of the engine, which is beneficial to ensure the stability of the high-pressure pipeline components.

[0041] It can be understood that the width of the second seal is greater than that of the first seal 5; the width of the second seal is less than or equal to the thickness of the protrusion. After the first seal 5 is set, the second seal is placed circumferentially on the protrusion 4 and covers the first seal.

[0042] Specifically, the first seal 5 is a sealing ring, and the second seal is a seal with a width greater than the sealing ring. The materials of the first seal 5 and the second seal can be rubber materials. This not only facilitates the second seal to be sleeved on the circumferential direction of the convex part, but also helps to ensure that after the convex part equipped with the second seal is inserted into the annular part, the airtightness of the connection between the pipeline flange end 3, the joint flange end and the annular part is ensured.

[0043] In this embodiment, sealing gaskets are respectively arranged between the pipeline flange end 3, the joint flange end and the annular component 2. The inner diameter of the sealing gasket can be the same as the inner diameter of the annular component, and the outer diameter of the sealing gasket can be the same as the outer diameter of the annular component. The setting of the sealing gasket plays a further sealing role.

[0044] It is easy to understand that the convex part 4 is provided with a plurality of first sealing members 5 in an annular direction; the convex part 4 is provided with a plurality of grooves in an annular direction, and a distance is set between two adjacent grooves. In some examples, two grooves may be provided, and the size of each groove is adapted to the size of the first sealing member, and each first sealing member is respectively inserted into the corresponding groove to prevent the first sealing member from moving during the installation process of the convex part;

[0045] In this embodiment, the convex portion 4 is a cylindrical convex portion with a hole. The outer diameter of the first sealing member arranged in the circumferential direction of the convex portion gradually decreases from one side of the convex portion close to the pipeline flange end or the joint flange end to the other side of the convex portion, which is conducive to the convex portion being inserted into the hollow part of the annular component. After the convex portion is inserted, the outer diameter of the first sealing member gradually increases, which is conducive to ensuring the tightness of the combination of the convex portion and the annular component.

[0046] Accordingly, the shape of the hollow portion of the annular component 2 is cylindrical.

[0047] It needs to be explained that the thickness of the annular component 2 is greater than the thickness of the convex parts on both sides, and a limit platform is set on the inner annular surface of the annular component to limit the convex part. The limit platform is an annular part, or the limit platform is a limit block fixed on the inner side of the annular component. The setting of the limit platform facilitates the rapid positioning of the installation of the convex part.

[0048] Among them, the annular component 2 has a set thickness, and the thickness of the annular component is greater than twice the thickness of the protrusion, so that the annular component can accommodate the protrusions on both sides thereof. Normally, the sum of the thicknesses of the protrusions on both sides of the annular component plus the thickness of the limit platform is the thickness of the annular component.

[0049] In addition, it can be understood that the outer diameter of the pipeline flange end 3 and the joint flange end is greater than the outer diameter of the pipeline;

[0050] A plurality of first openings are evenly arranged around the flange end 3 of the pipe and the flange end of the joint, and a plurality of second openings are arranged around the annular component. Both the first openings and the second openings are through holes, and the first openings correspond to the second openings one by one. The first fastener or the second fastener is arranged through the corresponding first opening and the second opening.

[0051] Specifically, the first fastener and the second fastener are respectively the first bolt and the second bolt. The first bolt passes through the pipe flange end 3, the annular component 2, and then passes through the other pipe flange end, and is locked by the first nut. The second bolt passes through the pipe flange end, the corresponding annular component, and then passes through the joint flange end, and is locked by the second nut.

[0052] It should be explained that the materials of each pipeline, annular component and joint flange end are all high-pressure resistant metal materials to ensure the service life of the high-pressure pipeline components.

[0053] The high-pressure pipeline component provided in this embodiment is connected between pipelines 1 and between the end-side pipeline and the joint flange end by an annular component rather than by welding. This facilitates the installation of the high-pressure pipeline component in a smaller space of the engine. After the installation of the end-side pipeline is completed, the connection between the two adjacent pipeline sections in the middle is achieved by an annular component, which facilitates the rapid installation of the high-pressure pipeline component in insufficient installation space and also facilitates the connection with the joint flange end.

[0054] Embodiment 2

[0055] The difference between this embodiment and the first embodiment is that:

[0056] The convex part is a truncated cone-shaped convex part with a hole, and the diameter of one end of the convex part close to the pipeline flange end or the joint flange end is larger than the diameter of the other end; the multiple first sealing members arranged on the convex part have the same size, that is, the multiple first sealing members have the same inner diameter and the same outer diameter.

[0057] Corresponding to the shape of the convex part, the shape of the inner hollow part of the annular component is two oppositely arranged truncated cones, and the shape of one side of the inner hollow part of the annular component is adapted to the shape of the truncated cone convex part, that is, the inner diameter of the end of the annular component is larger than the inner diameter of the middle part.

[0058] Embodiment 3

[0059] This embodiment provides a ship engine, which adopts an engine high-pressure pipeline component described in the first or second embodiment.

[0060] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An engine high-pressure pipeline component, characterized in that: It comprises a plurality of pipeline sections, two adjacent pipeline sections are connected by an annular component, a pipeline section connected to the joint flange end is also connected to the joint flange end by an annular component, at least one end of each pipeline section is provided with a pipeline flange end, the outer diameter of the annular component is greater than or equal to the outer diameter of the pipeline flange end or the joint flange end, both the pipeline flange end and the joint flange end are provided with a convex portion, a first seal and a second seal are circumferentially provided on the convex portion, the second seal is located on the outside of the first seal, the convex portion equipped with the first seal and the second seal is inserted into the hollow part of the annular component, the first fastener fastens the adjacent two pipeline flange ends and the annular component, and the second fastener fastens the end-side pipeline flange end, the annular component and the joint flange end.

2. An engine high-pressure pipeline component according to claim 1, characterized in that: The width of the second sealing member is greater than the width of the first sealing member; The width of the second sealing member is smaller than or equal to the thickness of the protrusion.

3. An engine high-pressure pipeline component according to claim 1, characterized in that: Sealing gaskets are respectively arranged between the pipeline flange end, the joint flange end and the annular component.

4. An engine high-pressure pipeline component according to claim 1, characterized in that: The convex portion is provided with a plurality of first sealing members in an annular direction; The convex part is provided with a groove in an annular direction, and each first sealing member is respectively inserted into the corresponding groove; The first sealing member is a sealing ring.

5. An engine high-pressure pipeline component according to claim 4, characterized in that: The convex portion is a cylindrical convex portion with a hole, and the outer diameter of the first sealing member arranged circumferentially on the convex portion gradually decreases from one side of the convex portion close to the pipeline flange end or the joint flange end to the other side of the convex portion; The hollow part of the annular component is cylindrical in shape.

6. An engine high-pressure pipeline component according to claim 4, characterized in that: The convex portion is a truncated cone-shaped convex portion with a hole, and the diameter of one end of the convex portion close to the pipeline flange end or the joint flange end is larger than the diameter of the other end; The plurality of first sealing members provided on the protrusion have the same size.

7. An engine high-pressure pipeline component according to claim 6, characterized in that: The shape of the hollow part inside the annular component is two truncated cones arranged opposite to each other.

8. An engine high-pressure pipeline component according to claim 1, characterized in that: A limiting platform is provided on the inner annular surface of the annular component to limit the convex portion; The annular component has a set thickness, and the thickness of the annular component is greater than twice the thickness of the protrusion.

9. The engine high-pressure pipeline component according to claim 1, characterized in that: The outer diameters of the pipeline flange end and the joint flange end are larger than the outer diameter of the pipeline; A plurality of first openings are circumferentially arranged at the pipeline flange end and the joint flange end, and a plurality of second openings are circumferentially arranged at the annular component, the first openings correspond to the second openings one by one, and the first fastener or the second fastener is arranged through the corresponding first opening and second opening.

10. A ship engine, characterized in that: An engine high-pressure pipeline component according to any one of claims 1 to 9 is adopted.

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