LU500394B1 - Automatic refueling system for marine fuel system - Google Patents

Automatic refueling system for marine fuel system Download PDF

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Publication number
LU500394B1
LU500394B1 LU500394A LU500394A LU500394B1 LU 500394 B1 LU500394 B1 LU 500394B1 LU 500394 A LU500394 A LU 500394A LU 500394 A LU500394 A LU 500394A LU 500394 B1 LU500394 B1 LU 500394B1
Authority
LU
Luxembourg
Prior art keywords
fuel
liquid level
level alarm
alarm devices
daily
Prior art date
Application number
LU500394A
Other languages
French (fr)
Inventor
Jianjun Cao
Tiannan Xu
Zhuli Zhang
Shengyong Li
Original Assignee
Fishery Machinery & Instrument Res Inst Cafs
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fishery Machinery & Instrument Res Inst Cafs filed Critical Fishery Machinery & Instrument Res Inst Cafs
Application granted granted Critical
Publication of LU500394B1 publication Critical patent/LU500394B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/04—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring fuels, lubricants or mixed fuels and lubricants
    • B67D7/0401—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring fuels, lubricants or mixed fuels and lubricants arrangements for automatically fuelling vehicles, i.e. without human intervention
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/32—Arrangements of safety or warning devices; Means for preventing unauthorised delivery of liquid
    • B67D7/3209—Arrangements of safety or warning devices; Means for preventing unauthorised delivery of liquid relating to spillage or leakage, e.g. spill containments, leak detection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/36—Arrangements of flow- or pressure-control valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Abstract

The present invention relates to an automatic refueling system for a marine fuel system, comprising a replenishing fuel line system; the replenishing fuel line system comprises liquid level meters, high liquid level alarm devices and low liquid level alarm devices arranged in fuel tanks to be replenished; the high liquid level alarm devices and the low liquid level alarm devices are respectively in a signal connection with a control center; a fuel bunker is connected to the fuel tanks to be replenished through fuel pumps and electromagnetic valves, and the electromagnetic valves and the fuel pumps are in a signal connection with the control center; and the control center controls the electromagnetic valves and the fuel pumps to be started and closed according to signals fed back by the high liquid level alarm devices and the low liquid level alarm devices. The refueling system according to the present invention is automated throughout the operation without any operation by a crew member, thereby greatly alleviating the crew member's daily necessary workload and work intensity of liquid level observation, refueling and manual operation of a control valve, and potential safety hazards of failing to refuel the daily fuel tank due to the crew member not having discovered fuel pump failure can be avoided.

Description

AUTOMATIC REFUELING SYSTEM FOR MARINE FUEL SYSTEM LU500394
BACKGROUND OF THE INVENTION
[0001] 1. Technical Field
[0002] The present invention relates to an automatic refueling system for a marine fuel system, belonging to the technical field of the marine fuel system.
[0003] 2. Description of Related Art
[0004] The Technical Rules for the Statutory Testing of Seagoing Vessels on Domestic Voyages prescribes that an engine room shall have at least two daily fuel tanks under normal circumstances, and each daily fuel tank is to supply for a diesel engine for at least 8 hours, so that a crew member needs to constantly observe the fuel level of the daily fuel tank; a fuel supply pump is necessarily started to replenish the daily fuel tank when the fuel level of a certain daily fuel tank is low. Failure to replenish in time is likely to cause a risk to stop the diesel engines. Crew member's daily fuel level observation, daily fuel level inspection and refueling for the daily fuel tank are important work of an on-duty marine engineer.
[0005] For common fuel systems, on the one hand, the failure of fuel pumps is perceptually invisible, and on the other hand, the crew member needs to manually operate a plurality of valves for refueling when the standby pump is started, thus causing heavy workload and low work efficiency.
BRIEF SUMMARY OF THE INVENTION
[0006] The present invention aims to provide an automatic refueling system for a marine fuel system. The system is automated throughout the operation without any operation by a crew member; and moreover, when any fuel pump is out of order, another standby pump is automatically started to replenish a daily fuel tank at a low fuel level.
1
[0007] The present invention adopts the following technical solutions: LU500394
[0008] An automatic refueling system for a marine fuel system, comprising a replenishing fuel line system; the replenishing fuel line system comprises liquid level meters 6, high liquid level alarm devices 3 and low liquid level alarm devices arranged in fuel tanks to be replenished; the high liquid level alarm devices 3 and the low liquid level alarm devices are respectively connected to a control center signal; and a fuel bunker is connected to the fuel tanks to be replenished through fuel pumps and electromagnetic valves, and the electromagnetic valves and the fuel pumps are in a signal connection with the control center; and the control center controls the electromagnetic valves and the fuel pumps to be started and closed according to signals fed back by the high liquid level alarm devices 3 and the low liquid level alarm devices.
[0009] Preferably, the replenishing fuel line system comprises at least N branched replenishing fuel line systems, and each branched replenishing fuel line system corresponds to one fuel tank to be replenished and has one fuel pump and one electromagnetic valve respectively.
[0010] Further, the fuel tanks to be replenished comprises a larboard daily fuel tank and a starboard daily fuel tank, and the fuel pumps comprise a first fuel pump 1 and a second fuel pump 12; the fuel bunker forms two parallel branched replenishing fuel line systems through a fuel filter 2, the first fuel pump 1 communicates with the larboard daily fuel tank through a first electromagnetic valve 9, and the second fuel pump 12 communicates with the starboard daily fuel tank through a second electromagnetic valve
10.
[0011] Furthermore, the first electromagnetic valve 9 and the second electromagnetic valve 10 are three-way valves, one of valve ports of the first electromagnetic valve 9 further communicates with the starboard daily fuel tank, and one of valve ports of the second electromagnetic valve 10 further communicates with the 2 larboard daily fuel tank; only one of the first fuel pump 1 and the second fuel pump 12 LU500394 operates at the same time under a common state, and the other one is in standby.
[0012] Still further, the low liquid level alarm devices comprise a first low liquid level alarm device 4 at a high liquid level and a second low liquid level alarm device 5 at a low liquid level; the second low liquid level alarm device 5 gives an alarm to trigger an unconventional state indicating that the fuel pump corresponding to the fuel tank to be replenished is out of order, the control center sends a signal to start another fuel pump, and converts a corresponding electromagnetic valve opening to the fuel tank to be replenished.
[0013] Preferably, the control center is a PLC control unit arranged in an electric cabinet 13.
[0014] Further, in all branched replenishing fuel line systems, stop valves 8 are arranged in front of the fuel tanks to be replenished.
[0015] The present invention has the following beneficial effects:
[0016] 1) The refueling system is automated throughout the operation without any operation by the crew member;
[0017] 2) When the fuel pump is out of order, another standby pump will be automatically started to replenish the daily fuel tank at the low fuel level.
[0018] 3) The crew member's daily necessary workload and work intensity of liquid level observation, refueling and manual operation of a control valve are alleviated greatly.
[0019] 4) Potential safety hazards of failing to refuel the daily fuel tank due to the crew member not having discovered fuel pump failure can be avoided.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
[0020] Fig. 1 is a structural schematic diagram of an automatic refueling system for a marine fuel system according to the present invention. 3
[0021] In the figures: 1. first fuel pump; 2. fuel filter; 3. high liquid level alarm LU500394 device; 4. first low liquid level alarm device; 5. second low liquid level alarm device:
6.liquid level meter; 7. overflow observer; 8. stop valve; 9. first electromagnetic valve; 10. second electromagnetic valve; 11. stop check valve; 12. NO.2 fuel pump; 13. electric cabinet.
DETAILED DESCRIPTION OF THE INVENTION
[0022] The present invention will be described below with reference to the accompanying drawings and specific inventions.
[0023] Referring to Fig. 1, an automatic refueling system for a marine fuel system, comprising a replenishing fuel line system; the replenishing fuel line system comprises liquid level meters 6, high liquid level alarm devices 3 and low liquid level alarm devices arranged in fuel tanks to be replenished; the high liquid level alarm devices 3 and the low liquid level alarm devices are respectively connected to a control center signal; and a fuel bunker is connected to the fuel tanks to be replenished through fuel pumps and electromagnetic valves, and the electromagnetic valves and the fuel pumps are in a signal connection with the control center; and the control center controls the electromagnetic valves and the fuel pumps to be started and closed according to signals fed back by the high liquid level alarm devices 3 and the low liquid level alarm devices.
[0024] In the invention, referring to Fig. 1, the replenishing fuel line system comprises at least N branched replenishing fuel line systems, and each branched replenishing fuel line system corresponds to one fuel tank to be replenished and has one fuel pump and one electromagnetic valve respectively. In Fig. 1, the number of the branched replenishing fuel line systems is 2.
[0025] Further, referring to Fig. 1, the fuel tanks to be replenished comprise a larboard daily fuel tank and a starboard daily fuel tank, and the fuel pumps comprise a first 4 fuel pump 1 and a second fuel pump 12; the fuel bunker forms two parallel branched LU500394 replenishing fuel line systems through a fuel filter 2, the first fuel pump 1 communicates with the larboard daily fuel tank through a first electromagnetic valve 9, and the second fuel pump 12 communicates with the starboard daily fuel tank through a second electromagnetic valve 10.
[0026] Referring to Fig. 1, the first electromagnetic valve 9 and the second electromagnetic valve 10 are three-way valves, one of valve ports of the first electromagnetic valve 9 further communicates with the starboard daily fuel tank, and one of valve ports of the second electromagnetic valve 10 further communicates with the larboard daily fuel tank; only one of the first fuel pump 1 and the second fuel pump 12 operates at the same time under a common state, and the other one is in standby.
[0027] With continued reference to Fig. 1, the low liquid level alarm devices comprise a first low liquid level alarm device 4 at a high liquid level and a second low liquid level alarm device 5 at a low liquid level; the second low liquid level alarm device 5 gives an alarm to trigger an unconventional state indicating that the fuel pump corresponding to the fuel tank to be replenished is out of order, the control center sends a signal to start another fuel pump, and converts a corresponding electromagnetic valve opening to the fuel tank to be replenished.
[0028] In the invention, referring to Fig. 1, the control center is a PLC control unit arranged in an electric cabinet 13.
[0029] In the invention, referring to Fig. 1, in all branched replenishing fuel line systems, stop valves 8 are arranged in front of the fuel tanks to be replenished.
[0030] At the time of specific work, referring to Fig. 1, when the fuel level in a larboard daily fuel tank is lower than the first low liquid level alarm device 4, the fuel tank alarm device may automatically start the first fuel pump 1 through a PLC control unit, and meanwhile, control the first electromagnetic valve 9 to open a passage to the larboard daily fuel tank, in order to refuel the larboard daily fuel tank; when the fuel level rises to LU500394 the liquid level of each high liquid level alarm device 3 of the fuel tank, the alarm device operates to close the first fuel pump 1 by the PLC control unit.
[0031] When the liquid level in the fuel tank continuously decreases to a liquid level set by the second low liquid level alarm device 5 if the first fuel pump 1 is out of order and cannot be started to refuel the larboard daily fuel tank, a signal is sent; and meanwhile the PLC control units will start the second fuel pump 12, control the second electromagnetic valve 10 to open the passage to the larboard daily fuel tank and to close a passage to a starboard daily fuel tank to refuel the larboard daily fuel tank. When the fuel level reaches a set liquid level of each high liquid level alarm device 3, the high liquid level alarm device 3 stops a second fuel pump 10 through the PLC control unit.
[0032] Similarly, the refueling system of the starboard daily fuel tank is the same as the foregoing condition, that is, when the second fuel pump 10 is out of order, the first fuel pump 1 may be automatically started to refuel the starboard daily fuel tank.
[0033] Compared with the traditional manual control refueling system, the refueling system belongs to an automatic system without any operation by the crew member. When the fuel level in each daily fuel tank is lower than an alarm position set by the corresponding low liquid level alarm device, the alarm device sends a signal to start the corresponding fuel pump. When fuel is extracted from the fuel tank, the fuel enters each fuel pump, an entrance and an exit of which have a vacuum pressure gauge and a pressure gauge respectively, through a fuel filter 2 and a control valve (normally-open), passes through the stop check valves and the electromagnetic valves, and then enters the daily fuel tanks through the control valve for a bulkhead of the daily fuel tank. When the liquid level reaches the set liquid level of each high liquid level alarm device, the high liquid level alarm device 3 sends a signal to stop the corresponding fuel pump for refueling. When the fuel pump is out of order and fails to start, and the liquid level in the 6 daily fuel tank decreases constantly to the liquid level set by each low liquid level alarm LU500394 device, a signal is sent to start another fuel pump, and meanwhile, the corresponding electromagnetic valve opening is converted to the daily fuel tank for refueling.
[0034] The above is preferred invention of the present invention. Those of ordinary skilled in the art may also make various variations or improvements on this basis. These variations or improvements should fall into the protection scope of the present invention without departing from the general concept of the present invention.
7

Claims (7)

What is claimed is: LU500394
1. An automatic refueling system for a marine fuel system, comprising a replenishing fuel line system: the replenishing fuel line system comprises liquid level meters (6), high liquid level alarm devices (3) and low liquid level alarm devices arranged in fuel tanks to be replenished; the high liquid level alarm devices (3) and the low liquid level alarm devices are respectively in a signal connection with a control center; a fuel bunker is connected to the fuel tanks to be replenished through fuel pumps and electromagnetic valves, and the electromagnetic valves and the fuel pumps are in a signal connection with the control center; and the control center controls the electromagnetic valves and the fuel pumps to be started and closed according to signals fed back by the high liquid level alarm devices (3) and the low liquid level alarm devices.
2. The automatic refueling system for the marine fuel system according to claim 1, wherein the replenishing fuel line system comprises at least N branched replenishing fuel line systems, and each branched replenishing fuel line system corresponds to one fuel tank to be replenished and has one fuel pump and one electromagnetic valve respectively.
3. The automatic refueling system for the marine fuel system according to claim 2, wherein the fuel tanks to be replenished comprise a larboard daily fuel tank and a starboard daily fuel tank, and the fuel pumps comprise a first fuel pump (1) and a second fuel pump (12); and the fuel bunker forms two parallel branched replenishing fuel line systems through a fuel filter (2), the first fuel pump (1) communicates with the larboard daily fuel tank through a first electromagnetic valve (9), and the second fuel pump (12) communicates with the starboard daily fuel tank through a second electromagnetic valve (10).
8
4. The automatic refueling system for the marine fuel system according to claim 3, LU500394 wherein the first electromagnetic valve (9) and the second electromagnetic valve (10) are three-way valves, one of valve ports of the first electromagnetic valve (9) further communicates with the starboard daily fuel tank, and one of valve ports of the second electromagnetic valve (10) further communicates with the larboard daily fuel tank; only one of the first fuel pump (1) and the second fuel pump (12) operates at the same time under a common state, and the other one is in standby.
5. The automatic refueling system for the marine fuel system according to claim 4, wherein the low liquid level alarm devices comprise a first low liquid level alarm device (4) at a high liquid level and a second low liquid level alarm device (5) at a low liquid level; the second low liquid level alarm device (5) gives an alarm to trigger an unconventional state indicating that the fuel pump corresponding to the fuel tank to be replenished is out of order, the control center sends a signal to start another fuel pump, and converts a corresponding electromagnetic valve opening to the fuel tank to be replenished.
6. The automatic refueling system for the marine fuel system according to claim 1, wherein the control center is a PLC control unit arranged in an electric cabinet (13).
7. The automatic refueling system for the marine fuel system according to claim 2, wherein in all branched replenishing fuel line systems, stop valves (8) are arranged in front of the fuel tanks to be replenished.
9
LU500394A 2021-04-20 2021-07-06 Automatic refueling system for marine fuel system LU500394B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110423724.7A CN113023656A (en) 2021-04-20 2021-04-20 Automatic filling system of ship fuel oil system

Publications (1)

Publication Number Publication Date
LU500394B1 true LU500394B1 (en) 2022-01-06

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ID=76456991

Family Applications (1)

Application Number Title Priority Date Filing Date
LU500394A LU500394B1 (en) 2021-04-20 2021-07-06 Automatic refueling system for marine fuel system

Country Status (2)

Country Link
CN (1) CN113023656A (en)
LU (1) LU500394B1 (en)

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Publication number Publication date
CN113023656A (en) 2021-06-25

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FG Patent granted

Effective date: 20220106