Oil supply system for fuel oil tank of ship
By introducing components such as fuel filters, flow meters, fuel pumps, mixing tanks, and level sensors into the ship's fuel tank supply system, and combining this with a controller to adjust the opening of pneumatic valves, the safety hazards and fuel supply imbalances caused by changes in fuel viscosity have been resolved, achieving stable and safe fuel supply.
Patent Information
- Application Number
- CN202423159086.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-20
AI Technical Summary
In existing ship fuel supply systems, fuel oil is burned in the boiler to reduce its viscosity before entering the fuel tank, leading to safety hazards and fuel supply imbalances.
A marine fuel tank fuel supply system was designed, comprising a fuel filter, flow meter, fuel pump, mixing tank, liquid level sensor and pneumatic regulating valve. The opening of the pneumatic regulating valve is adjusted by the controller to maintain a constant liquid level, prevent air bubbles from entering the fuel pump, achieve fuel supply balance, and ensure safety through the mixing tank and pressure relief connection pipeline.
The system is simple, provides good fuel supply, and is highly safe, avoiding problems such as fuel pump damage and inaccurate flow meter measurements, thus ensuring a stable fuel supply.
Smart Images
Figure CN223523855U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of ship fuel inlet and outlet method, in particular to a ship fuel tank oil supply system which is simple in system, good in oil supply effect, balanced in oil supply and high in safety performance. BACKGROUND
[0002] It is known that the ship fuel tank supplies fuel to the fuel boiler burner, in order to ensure the combustion effect of the fuel boiler burner, the ship fuel tank generally supplies fuel to the fuel boiler burner under pressure, and after the fuel entering the fuel boiler burner under pressure is burned, part of the fuel will return to the fuel tank, so that the fuel passing through the boiler is heated and its viscosity is reduced, and the fuel entering the fuel tank again will be dangerous. SUMMARY
[0003] The present application aims at solving the above-mentioned problems of the prior art, and provides a ship fuel tank oil supply system which is simple in system, good in oil supply effect, balanced in oil supply and high in safety performance.
[0004] The technical scheme adopted by the present application to solve the technical problems is as follows:
[0005] A ship fuel tank oil supply system is provided with a fuel tank and a fuel boiler burner, characterized in that a fuel supply unit is arranged between the fuel tank and the fuel boiler burner, the fuel supply unit comprises a fuel filter, a flow meter, an oil pump and a mixed oil barrel, the fuel tank is connected with the fuel filter, the flow meter and the oil pump in sequence through pipelines, the oil pump is connected with the inlet of the fuel boiler burner through a pipeline, the outlet of the fuel boiler burner is connected with the inlet of a three-way valve through a pipeline, one outlet of the three-way valve is connected with the fuel tank through a pipeline, the other outlet of the three-way valve is connected with the inlet of the mixed oil barrel through a pipeline, the outlet of the mixed oil barrel is connected with the pipeline between the flow meter and the oil pump through a pipeline, and a pneumatic regulating valve is connected with the pipeline of the outlet of the mixed oil barrel.
[0006] The upper end of the side of the mixed oil barrel is connected with an oil guiding upper pipe, the lower end of the side of the mixed oil barrel is connected with an oil guiding lower pipe, the oil guiding upper pipe and the oil guiding lower pipe are connected with an oil guiding pipe, a liquid level meter is installed on the oil guiding pipe, and the liquid level meter is connected with a liquid level sensor.
[0007] The fuel supply unit comprises a controller, the controller is connected with the liquid level sensor and the pneumatic regulating valve, the liquid level sensor transmits the liquid level to the controller, and the controller controls the opening degree of the pneumatic regulating valve.
[0008] An alarm is installed on the oil guiding pipe, the alarm is connected with the controller, the liquid level sensor transmits a signal to the controller, the controller transmits the signal to the alarm, and the alarm function is realized.
[0009] The oil mixing barrel is provided with a pressure relief communication pipeline above it, which is connected with the cabin air and the depth tube system.
[0010] The inlet height position of the oil mixing barrel is higher than the high oil level height position of the fuel oil supply tank, and the minimum distance between the inlet height position of the oil mixing barrel and the high oil level height position of the fuel oil supply tank is 100mm.
[0011] The bottom outlet height position of the oil mixing barrel is lower than the low oil level height position of the fuel oil supply tank, and the minimum distance between the bottom outlet height position of the oil mixing barrel and the low oil level height position of the fuel oil supply tank is 200mm.
[0012] The present application has the advantages of simple system, good oil supply effect, balanced oil supply, high safety performance and the like due to the adoption of the above structure. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a structural schematic diagram of the present application. DETAILED DESCRIPTION
[0014] The present application will be further described below in combination with the drawings:
[0015] As shown in the drawings, a ship fuel tank oil supply system is provided with a fuel oil supply tank 1 and a fuel oil boiler burner 2, characterized in that an oil supply unit is arranged between the fuel oil supply tank 1 and the fuel oil boiler burner 2, the oil supply unit comprising a fuel oil filter 3, a flowmeter 4, an oil pump 5 and an oil mixing barrel 6, the fuel oil supply tank 1 being connected with the fuel oil filter 3, the flowmeter 4 and the oil pump 5 in sequence through pipelines, the oil pump 5 being connected with the inlet of the fuel oil boiler burner 2 through a pipeline, the outlet of the fuel oil boiler burner 2 being connected with the inlet of a three-way valve through a pipeline, one outlet of the three-way valve being connected with the fuel oil supply tank 1 through a pipeline, the other outlet of the three-way valve being connected with the inlet of the oil mixing barrel 6 through a pipeline, the outlet of the oil mixing barrel 6 being connected with the pipeline between the flowmeter 4 and the oil pump 5 through a pipeline, and a pneumatic regulating valve being connected on the pipeline of the outlet of the oil mixing barrel 6.
[0016] Further, the upper end of the side of the oil mixing barrel 6 is connected with an oil guiding upper pipe 7, the lower end of the side of the oil mixing barrel 6 is connected with an oil guiding lower pipe 8, the oil guiding upper pipe 7 and the oil guiding lower pipe 8 are connected through an oil guiding pipe 9, a liquid level meter 10 is installed on the oil guiding pipe 9, and the liquid level meter 10 is connected with a liquid level sensor 11.
[0017] Further, the oil supply unit comprises a controller, the controller being connected with the liquid level sensor 11 and the pneumatic regulating valve 12, the liquid level sensor 11 transmitting the liquid level to the controller, and the controller controlling the opening degree of the pneumatic regulating valve 12.
[0018] Further, the oil guide pipe 9 is provided with an alarm 13 connected with the controller, the liquid level sensor 11 transmits signals to the controller, the controller transmits signals to the alarm 13, and the alarm function is realized.
[0019] Further, the oil mixing barrel 6 is provided with a pressure relief communication pipeline connected with the cabin air and the depth tube system.
[0020] Further, the inlet height position of the oil mixing barrel 6 is higher than the high oil level height position of the fuel supply tank 1, and the minimum distance between the inlet height position of the oil mixing barrel 6 and the high oil level height position of the fuel supply tank 1 is 100 mm.
[0021] Further, the bottom outlet height position of the oil mixing barrel 6 is lower than the low oil level height position of the fuel supply tank 1, and the minimum distance between the bottom outlet height position of the oil mixing barrel 6 and the low oil level height position of the fuel supply tank 1 is 200 mm.
[0022] In use, the liquid level of the liquid level sensor 11 is set at the middle position of the oil mixing barrel 6, the liquid level sensor 11 outputs signals to the controller, and the controller adjusts the opening degree of the pneumatic regulating valve 12, so that the liquid level is maintained at a set liquid level even if the viscosity and pipe resistance are different. The low liquid level alarm of the oil mixing barrel 6 is increased to prevent the pump from sucking air bubbles and damaging the oil pump 5. When the oil mixing barrel 6 is designed for the fuel system of the generator and the boiler, the oil in the oil mixing barrel 6 is prevented from being exhausted, air bubbles are prevented from entering the fuel pump 5, pressure fluctuations and damage to the fuel pump 5 are avoided, and the flowmeter 4 can more accurately measure fuel consumption. The set liquid level height value of the liquid level sensor 11 is 600 mm, and the minimum alarm liquid level height value is 300 mm. The fuel is supplied at a pressure higher than the required pressure of the fuel boiler burner, the remaining fuel is discharged through the outlet of the fuel boiler burner and enters the oil mixing barrel, and the present application has the advantages of simple system, good fuel supply effect, balanced fuel supply, high safety performance and the like due to the adoption of the above structure.
Claims
1. A fuel oil supply system for a fuel oil bunker of a ship, provided with a fuel oil supply bunker, a fuel oil boiler burner, characterized in that The fuel oil supply cabin and the fuel oil boiler burner are provided with a fuel oil supply unit, which comprises a fuel oil filter, a flow meter, an oil pump and a fuel oil mixing barrel.
2. A fuel oil supply system for a fuel oil tank of a marine vessel according to claim 1, characterized in that The upper end of the side of the fuel oil mixing barrel is connected with an oil guiding upper pipe, and the lower end of the side of the fuel oil mixing barrel is connected with an oil guiding lower pipe.
3. A fuel oil supply system for a fuel oil tank of a marine vessel according to claim 1, characterized in that The fuel oil supply unit comprises a controller, which is connected with the liquid level sensor and the pneumatic regulating valve.
4. A fuel oil supply system for a fuel oil tank of a marine vessel according to claim 2, characterized in that The oil guiding pipe is provided with an alarm, which is connected with the controller.
5. A fuel oil supply system for a fuel oil tank of a marine vessel according to claim 1, characterized in that The fuel oil mixing barrel is provided with a pressure relief communication pipe, which is connected with the cabin air and the depth pipe system.
6. A marine fuel tank filling system according to claim 1, characterised in that The inlet height position of the fuel oil mixing barrel is higher than the height position of the high oil level of the fuel oil supply cabin.
7. A fuel oil supply system for a fuel oil tank of a marine vessel according to claim 1, characterized in that The bottom outlet height position of the fuel oil mixing barrel is lower than the height position of the low oil level of the fuel oil supply cabin.