Ship fuel oil pipeline system

By designing a marine fuel pipeline system including a precipitation buffer filter, flowmeter, fuel filter and variable diameter pipe, the problems of insufficient supply pressure and blockage caused by uneven fuel pipeline design and excessive bent pipes in the prior art are solved, and the fuel flow efficiency improvement and normal operation of the main engine under severe cold conditions are achieved.

CN222960013UActive Publication Date: 2025-06-10TIANJIN PORT TUGBOAT & LIGHTER CO LTD
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Patent Information

Application Number
CN202422283153.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-19
Publication Date
2025-06-10
Estimated Expiration
2034-09-19

AI Technical Summary

Technical Problem

The existing marine fuel system pipeline design has uneven layout and excessive bent pipes, resulting in insufficient supply pressure, blockage and insufficient fuel flow, especially in severe cold weather, which may cause difficulties in starting the main engine or automatic parking.

Method used

A marine fuel pipeline system is designed, including a fuel daily cabinet, a precipitation buffer, a flowmeter, a fuel filter, a diameter-reducing pipe and a main unit, and each component is connected through a fuel pipeline. A precipitation buffer filter is set at the outlet of the fuel daily necessities. A flowmeter is set at the rear end of the precipitation buffer filter, a fuel filter is set at the rear end of the flowmeter, a diameter-reducing tube is set at the rear end of the fuel filter, and a main machine is set at the rear end of the variable diameter-reducing tube. At the same time, the fuel pipeline closest to the bottom of the ship is lifted by 0.7 meters, so that the fuel pipeline is distributed in a step-down manner.

Benefits of technology

Filter mechanical impurities and paraffin components through precipitation buffer filters, increase the ambient temperature of the fuel pipeline, reduce paraffin precipitation, improve fuel flow efficiency, avoid insufficient supply pressure and blockage, and ensure that the main unit starts and operates normally under severe cold conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

A ship fuel oil pipeline system is characterized by comprising a fuel oil daily cabinet, a sediment buffer filter is arranged at an outlet of the fuel oil daily cabinet, a flow meter is arranged at the rear end of the sediment buffer filter, a fuel oil filter is arranged at the rear end of the flow meter, a reducer pipe is arranged at the rear end of the fuel oil filter, and a main engine is arranged at the rear end of the reducer pipe. All the components are connected through fuel oil pipelines; a precipitation buffer filter is additionally arranged at an outlet of a fuel daily cabinet and used for filtering mechanical impurities and paraffin components in fuel, a fuel pipeline lower than a main engine is lifted to the level of a fuel inlet of the main engine, the lifting height is about 0.7 m, the environment temperature of the fuel pipeline is increased, precipitation of paraffin in the fuel caused by low environment temperature is reduced, and the service life of the fuel pipeline is prolonged. At the moment, the fuel daily cabinet is located at the high position and is 1.5 m away from the ship bottom, the main engine is located at the low position and is 0.7 m away from the ship bottom, the whole fuel pipeline gradually descends in a stepped mode, the height of the fuel pipeline is higher than that of a base of the main engine, and therefore the fuel flowing efficiency is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of ship pipelines, in particular to a ship fuel pipeline system. Background Art

[0002] In the existing design of ship fuel system pipelines, there are problems such as uneven layout, too many elbows, and even U-shaped elbows. The smooth flow of fuel in the pipeline is not fully considered during the design, resulting in insufficient supply pressure, blockage, and insufficient fuel flow during the actual operation of the main engine. Especially in extremely cold weather in winter, the kinematic viscosity of the fuel increases significantly, and in severe cases, it even causes difficulties in starting the main engine or automatic shutdown after starting. To solve the above problems, a ship fuel pipeline system is proposed. Content of the Utility Model

[0003] According to the above existing technical problems, the utility model provides a ship fuel pipeline system, which is characterized by including a daily fuel tank, a sediment buffer, a flow meter, a fuel filter, a reducing pipe, and a main engine. A sediment buffer filter is arranged at the outlet of the daily fuel tank. A flow meter is arranged at the rear end of the sediment buffer filter. A fuel filter is arranged at the rear end of the flow meter. A reducing pipe is arranged at the rear end of the fuel filter. A main engine is arranged at the rear end of the reducing pipe. Each component is connected by a fuel pipeline.

[0004] Furthermore, the fuel pipeline closest to the bottom of the ship is lifted by 0.7 meters, so that the lowest point of the fuel pipeline is slightly higher than the base of the diesel engine. The outlet of the daily fuel tank is at the highest point, reaching 1.5 meters, and the fuel pipeline is distributed in a stepped downward shape.

[0005] Furthermore, the inlet of the sediment buffer filter is lower than the outlet. The diameter of its inlet is DN50, the diameter of the inlet of the reducing pipe is DN32, and the diameter of the outlet is DN25.

[0006] Furthermore, there is a remote control quick closing valve at the outlet of the daily fuel tank, and a stop valve at the inlet of the main engine.

[0007] Advantages of the Utility Model

[0008] By installing a sediment buffer filter at the outlet of the daily fuel tank, the utility model filters out mechanical impurities and paraffin components in the fuel, and lifts the fuel pipeline below the fuel inlet of the main engine by about 0.7 meters, so that the overall fuel pipeline is not lower than the fuel inlet of the main engine, to increase the ambient temperature of the fuel pipeline and reduce the precipitation of paraffin in the fuel caused by low ambient temperature. At this time, the daily fuel tank is at a high position, 1.5 meters from the bottom of the ship, and the main engine is at a low position, 0.7 meters from the bottom of the ship. The overall fuel pipeline gradually descends in a stepped shape, improving the efficiency of fuel flow. Description of the Drawings

[0009] Figure 1 This is the overall structural schematic diagram of a ship fuel pipeline system of the present utility model;

[0010] As shown in the figure: 1 fuel daily tank, 2 sediment buffer, 3 flowmeter, 4 fuel filter, 5 reducer pipe, 6 main engine. Specific embodiments

[0011] Next, the technical solutions of the present utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present utility model.

[0012] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0013] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0014] Embodiment 1

[0015] The present utility model provides a ship fuel pipeline system, which is characterized by including a fuel daily tank 1, a sediment buffer 2, a flowmeter 3, a fuel filter 4, a reducer pipe 5, and a main engine 6. A sediment buffer filter 2 is arranged at the outlet of the fuel daily tank 1, a flowmeter 3 is arranged at the rear end of the sediment buffer filter 2, a fuel filter 4 is arranged at the rear end of the flowmeter 3, a reducer pipe 5 is arranged at the rear end of the fuel filter 4, and a main engine 6 is arranged at the rear end of the reducer pipe 5. Each component is connected by a fuel pipeline;

[0016] Furthermore, the fuel pipeline closest to the bottom of the ship is lifted by 0.7 meters, so that the lowest point of the fuel pipeline is slightly higher than the base of the diesel engine. The outlet of the daily fuel tank 1 is at the highest point, reaching 1.5 meters, and the fuel pipeline is distributed in a stepped-down shape;

[0017] Furthermore, the inlet of the sediment buffer filter 2 is lower than the outlet. The diameter of its inlet is DN50, the diameter of the inlet of the reducer pipe 5 is DN32, and the diameter of the outlet is DN25;

[0018] Furthermore, there is a remotely controlled quick-closing valve at the outlet of the daily fuel tank 1, and a stop valve at the inlet of the main engine 6.

[0019] Embodiment 2

[0020] During use, a sediment buffer filter 2 is installed at the outlet of the daily fuel tank 1 to filter out mechanical impurities and paraffin components in the fuel. The overall fuel pipeline is lifted by about 0.7 meters to increase the ambient temperature of the fuel pipeline and reduce the precipitation of paraffin in the fuel caused by low ambient temperature. At this time, the daily fuel tank 1 is at a high position, 1.5 meters from the bottom of the ship, and the main engine 6 is at a low position, 0.7 meters from the bottom of the ship. The overall fuel pipeline gradually descends in a stepped shape, improving the efficiency of fuel flow.

[0021] The above shows and describes the basic principles, main features and advantages of the present invention. Each component mentioned in the present invention is a common technology in the existing field. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A ship fuel pipeline system, characterized in that: It includes a daily fuel tank, a sedimentation buffer, a flow meter, a fuel filter, a reducer, and a main engine. A sedimentation buffer filter is arranged at the outlet of the daily fuel tank, a flow meter is arranged at the rear end of the sedimentation buffer filter, a fuel filter is arranged at the rear end of the flow meter, a reducer is arranged at the rear end of the fuel filter, a main engine is arranged at the rear end of the reducer, and each component is connected by a fuel pipeline.

2. A ship fuel pipeline system according to claim 1, characterized in that: The fuel pipeline closest to the bottom of the ship is raised to 0.7 meters, so that the lowest point of the fuel pipeline is slightly higher than the diesel engine base. The outlet of the daily fuel tank is at the highest point, reaching 1.5 meters, and the fuel pipeline is distributed in a stepped descending shape.

3. A ship fuel pipeline system according to claim 2, characterized in that: The inlet of the sedimentation buffer filter is lower than the outlet, and the diameter of the inlet is DN50. The diameter of the inlet of the reducer is DN32, and the diameter of the outlet is DN25.

4. A ship fuel pipeline system according to claim 3, characterized in that: The outlet of the daily fuel tank is provided with a remote control quick closing valve, and the inlet of the main engine is provided with a stop valve.