Low-speed marine diesel engine filter pipeline system

Abstract

The utility model provides a low-speed marine diesel engine filter pipeline system. The marine diesel engine filter is provided with an oil inlet end and an oil outlet end which are respectively connected with an oil inlet pipeline and an oil outlet pipeline, aiming at the condition that the normal use of a hydraulic oil filter designed by the traditional German Group (MAN) and the arrangement position of the filter and the arrangement position of a piping system of the hydraulic oil filter is influenced, the position of the filter is adjusted, and the pipelines are designed in a targeted manner; all straight sections of a final finished product are arranged in parallel, a first / third flange has a preset height difference, a second / fourth flange has the same height and has a horizontal preset distance, and the preset height difference and distance can be matched with a diesel engine filter connector for a mainstream ship. The double vertical pipe sections are parallel but asymmetrical, and the asymmetrical vertical pipe sections are designed to compress transverse space, so that the problem that the pipeline protrudes outwards is thoroughly solved; the length of the pipeline is shortened, buffering is conducted through the arranged inclined part, and fluid pulsation impact can be reduced; straight pipe consumption is reduced, and material cost is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of installation of hydraulic oil filters for diesel engines and their piping systems, and in particular to a filter piping system for low-speed marine diesel engines. Background Technology

[0002] Hydraulic oil filters are core equipment used to remove contaminants and ensure the cleanliness of hydraulic servo oil and the stability of system pressure. Their installation position on the main engine must be reasonable to ensure that the main engine's shape matches the ship's cabin space, allowing for normal passage and daily operation of personnel on the main engine, and facilitating subsequent filter element replacement. Existing low-speed diesel engine ships mostly use hydraulic oil filters and piping systems designed by the German MAN Group. This piping system consists of conventional flanges, elbows, and straight pipe sections. The design drawings show a relatively neat pipeline with parallel inlet and outlet pipes. However, in actual construction, the pipeline protrudes beyond the walkway, leading to the following defects in actual use: 1. The filter position affects subsequent electrical layout, and the hydraulic oil pipes protruding beyond the walkway hinder the main engine's entry into the cabin; 2. Excessively long hydraulic oil pipes may cause serious vibration problems, and the overall length of the parallel pipes is relatively long, increasing costs. Utility Model Content

[0003] To address the aforementioned technical problems, a low-speed marine diesel engine filter piping system is provided. The technical means employed in this invention are as follows:

[0004] A low-speed marine diesel engine filter piping system, wherein the marine diesel engine filter has an oil inlet end and an oil outlet end, which are respectively connected to an oil inlet pipe and an oil outlet pipe.

[0005] The oil inlet pipeline includes, in sequence, a first flange, a first straight section, a first elbow, a first inclined section, a first connecting section, a first vertical pipe section, a second connecting section, a second inclined section, a second elbow, a second straight section, and a second flange.

[0006] The oil outlet pipeline includes, in sequence, the third flange, the third straight section, the third elbow, the third inclined section, the third connecting section, the second vertical pipe section, the fourth elbow, the fourth inclined section, the fourth connecting section, the fourth straight section, and the fourth flange.

[0007] The first, second, third, and fourth straight sections are all arranged in parallel. The first and third flanges are connected to the diesel engine filter with a preset height difference. The second and fourth flanges are at the same height and have a preset horizontal distance between them. Through the arrangement of several inclined parts and connecting parts, the first and second vertical pipe sections are arranged in parallel. The lengths of the first and second vertical pipe sections from the vertical plane where the filter center is located are different, but the oil pipes away from the vertical plane where the filter center is located do not exceed the edge of the walkway.

[0008] Furthermore, a reducing pipe is installed at the beginning of the first straight section, and the diameter gradually decreases from the flange interface to the inlet of the first straight section.

[0009] Furthermore, the marine diesel engine filter is installed on the ship's walkway, and the oil inlet and outlet pipelines do not extend beyond the edge of the walkway. A vertically downward extending pipe rack is installed at the bottom of the walkway.

[0010] This invention has the following advantages: Addressing the issue of filter and piping placement affecting normal operation in traditional MAN-designed hydraulic oil filters and piping systems, this invention adjusts the filter's position and specifically designs the piping. The final product features a parallel layout of all straight sections, a pre-set height difference between the first and third flanges, and the second and fourth flanges at the same height with a pre-set horizontal spacing. This pre-set height difference and spacing are compatible with mainstream marine diesel engine filter interfaces. The double vertical pipe sections are parallel but asymmetrical. This asymmetrical vertical pipe design compresses lateral space, completely solving the problem of pipe protrusion; it shortens pipe length and uses inclined sections for buffering, reducing fluid pulsation impact; it reduces the amount of straight pipe used, lowering material costs; and the centralized arrangement of vertical pipe sections effectively improves the operating space around the filter. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a three-dimensional view of the oil inlet pipeline of this utility model.

[0014] Figure 3 This is a front view of the oil inlet pipeline of this utility model.

[0015] Figure 4 This is a left view of the oil inlet pipeline of this utility model.

[0016] Figure 5 This is a top view of the oil inlet pipeline of this utility model.

[0017] Figure 6 This is a three-dimensional view of the oil outlet pipeline of this utility model.

[0018] Figure 7 This is a front view of the oil outlet pipeline of this utility model.

[0019] Figure 8 This is a left view of the oil outlet pipeline of this utility model.

[0020] Figure 9 This is a top view of the oil outlet pipeline of this utility model.

[0021] Figure 10 A schematic diagram of the existing pipeline setup.

[0022] In the diagram: 1. Filter; 2. Inlet pipe; 3. Outlet pipe; 4. First flange; 5. Reducer; 6. First straight section; 7. First elbow; 8. First inclined section; 9. First connection; 10. First vertical pipe section; 11. Second connection; 12. Second inclined section; 13. Second elbow; 14. Second straight section; 15. Second flange; 16. Third flange; 17. Third straight section; 18. Third elbow; 19. Third inclined section; 20. Third connection; 21. Second vertical pipe section; 22. Fourth elbow; 23. Fourth inclined section; 24. Fourth connection; 25. Fourth straight section; 26. Fourth flange. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] In order to solve such Figure 10 The defects of the conventional diesel engine filter piping system shown are as follows: Figures 1-9 As shown in the figure, this utility model embodiment discloses a low-speed marine diesel engine filter pipeline system, wherein the marine diesel engine filter 1 is provided with an oil inlet end and an oil outlet end, which are respectively connected to the oil inlet pipeline 2 and the oil outlet pipeline 3.

[0025] The oil inlet pipeline includes, in sequence, a first flange 4, a first straight section 6, a first elbow 7, a first inclined section 8, a first connecting section 9, a first vertical pipe section 10, a second connecting section 11, a second inclined section 12, a second elbow 13, a second straight section 14, and a second flange 15.

[0026] The oil outlet pipeline includes, in sequence, the third flange 16, the third straight section 17, the third elbow 18, the third inclined section 19, the third connecting section 20, the second vertical pipe section 21, the fourth elbow 22, the fourth inclined section 23, the fourth connecting section 24, the fourth straight section 25, and the fourth flange 26.

[0027] The first, second, third, and fourth straight sections are all arranged in parallel. The first and third flanges are connected to the diesel engine filter with a predetermined height difference. The second and fourth flanges are at the same height and have a predetermined horizontal distance between them. Several inclined and connecting parts ensure that the first and second vertical pipe sections are arranged in parallel. The first and second vertical pipe sections have different lengths from the vertical plane containing the filter center, but the oil pipes away from the vertical plane containing the filter center do not exceed the edge of the walkway. That is, the first and second vertical pipe sections are arranged in parallel, and their distances from the filter center vertical plane (L) are L1 and L2 (L1 is less than L2), respectively. The highest points of the inlet and outlet oil pipes are lower than the top of the filter.

[0028] The angle difference between the first straight section and the first inclined section is adjusted by setting a first elbow. The inclination angle of the inclined section is adjusted to the vertical state of the vertical pipe section by setting a first connecting part. The preset inclination is adjusted to the outward inlet angle of the second elbow by setting a second connecting part and a second inclined part. Through the above settings, the first straight section is finally positioned away from the filter, the second straight section is positioned closer to the filter, and the distance between the centers of the first flange and the second flange is 147mm as shown in the figure.

[0029] Similarly, the third straight section is connected to the third inclined section via a third elbow. The third inclined section has a preset angle with the vertical plane. The angle of the inclined section is adjusted to the vertical state of the second vertical pipe section via the third connecting part. Then, by setting the inlet angle for inward flow, the fourth inclined section and the fourth connecting part are adjusted to make the inlet of the fourth straight section parallel to the filter. Through the above settings, the fourth straight section is ultimately moved closer to the filter side, while the third straight section is moved away from the filter side, and the distance between the centers of the third flange and the fourth flange is 99mm as shown in the figure. This configuration ensures that the inlet and outlet oil lines can achieve conventional functions with shorter pipelines.

[0030] Furthermore, a reducing pipe 5 is provided at the beginning of the first straight section, and the diameter gradually decreases from the flange interface to the inlet of the first straight section.

[0031] Furthermore, the marine diesel engine filter is installed on the ship's walkway, and the oil inlet and outlet pipelines do not extend beyond the edge of the walkway. A vertically downward extending pipe rack is installed at the bottom of the walkway.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A low-speed marine diesel engine filter piping system, wherein the marine diesel engine filter has an oil inlet end and an oil outlet end, which are respectively connected to an oil inlet pipe and an oil outlet pipe, characterized in that, The oil inlet pipeline includes, in sequence, a first flange, a first straight section, a first elbow, a first inclined section, a first connecting section, a first vertical pipe section, a second connecting section, a second inclined section, a second elbow, a second straight section, and a second flange. The oil outlet pipeline includes, in sequence, the third flange, the third straight section, the third elbow, the third inclined section, the third connecting section, the second vertical pipe section, the fourth elbow, the fourth inclined section, the fourth connecting section, the fourth straight section, and the fourth flange. The first, second, third, and fourth straight sections are all arranged in parallel. The first and third flanges are connected to the diesel engine filter with a preset height difference. The second and fourth flanges are at the same height and have a preset horizontal distance between them. Through the arrangement of several inclined parts and connecting parts, the first and second vertical pipe sections are arranged in parallel. The lengths of the first and second vertical pipe sections from the vertical plane where the filter center is located are different, but the oil pipes away from the vertical plane where the filter center is located do not exceed the edge of the walkway.

2. The low-speed marine diesel engine filter piping system according to claim 1, characterized in that, A reducing pipe is installed at the beginning of the first straight section, and the diameter gradually decreases from the flange interface to the inlet of the first straight section.

3. The low-speed marine diesel engine filter piping system according to claim 1, characterized in that, The marine diesel engine filter is installed on the ship's walkway. The oil inlet and outlet pipelines do not extend beyond the edge of the walkway. A vertically downward-extending pipe rack is installed at the bottom of the walkway.

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