CN-122009456-A - Marine energy supply ship

CN122009456ACN 122009456 ACN122009456 ACN 122009456ACN-122009456-A

Abstract

The application provides a marine energy source supplementing ship. The system comprises an electric propulsion system, a liquid fuel storage unit, a power generation unit, a power storage unit and a control unit. The application adopts goods or goods steam in the fuel tank as power fuel to ensure the normal operation of the replenishment ship. Through the setting of control unit, acquire boats and ships real-time data, control power generation unit uses unnecessary goods steam to generate electricity to charge for the unit that charges, when satisfying the boats and ships operation, avoid in the fuel jar goods steam too much to cause the cabin to press too high, guarantee pressure stability and boats and ships safe operation. Through the setting of generating unit, replace combustion system or reliquefaction system, improve energy utilization efficiency, satisfy the normal operating of boats and ships simultaneously, realize boats and ships low carbon emission operation and energy high efficiency utilization.

Inventors

ZHOU XINYUAN
CHEN YIZHUO
HUANG ZHIYAN
ZHANG NING
ZHANG ZHUHUI
JIANG XIONGJIAN
CHEN JUNYI

Assignees

江南造船(集团)有限责任公司

Dates

Publication Date: 20260512
Application Date: 20260209

Claims (10)

1. The marine energy supply ship is characterized by comprising an electric propulsion system, a liquid fuel storage unit, a power generation unit, a power storage unit and a control unit: The power storage unit comprises a power storage device; The power generation unit is arranged in the cabin area of the ship and comprises power generation equipment, wherein the power generation equipment is electrically connected with the power storage unit and is used for charging the power storage equipment; the liquid fuel storage unit is used for placing a fuel tank, and the fuel tank is connected with the power generation equipment and provides fuel for the power generation equipment; the control unit is respectively connected with the power generation unit, the power storage unit, the liquid fuel storage unit and the electric propulsion system in a control way, the control unit comprises a plurality of control modes, and the control unit is used for acquiring real-time data of the ship and selecting a corresponding control mode according to the real-time data.
2. The marine energy tender vessel of claim 1, wherein the real-time data includes at least an amount of boil-off gas generated and an amount of actual gas consumed, and wherein the control unit compares the amount of actual gas consumed and the amount of boil-off gas generated to determine a corresponding control pattern.
3. The marine energy tender vessel of claim 2, wherein the power generation device is a dual fuel generator that can adjust a fuel gas to fuel oil ratio.
4. The marine energy tender vessel of claim 3, wherein the control modes comprise a first mode, a second mode, and a third mode; The control unit adjusts the fuel gas and fuel oil mixing proportion of the dual-fuel generator, supplements the fuel gas deficiency, and discharges the power storage device to supplement the power deficiency so as to ensure the pressure in the fuel tank to be stable; the second mode is a matching mode, namely the actual fuel gas consumption is balanced with the evaporation gas generation amount, and the dual-fuel generator operates by using natural evaporation gas; the third mode is a fuel gas excess mode, namely the generation amount of evaporated gas is larger than the actual fuel gas consumption amount, the dual-fuel generator is operated in a maximum consumption mode, and the power storage equipment is charged to consume the excess fuel gas.
5. The marine energy tender vessel of claim 4, further comprising a pressure detection unit for detecting in real time a design pressure of the fuel tank and a real-time pressure of the fuel tank and transmitting to the control unit, wherein the control unit determines to enter the third mode when a ratio of the real-time detected pressure of the fuel tank to the design pressure of the fuel tank is greater than 0.9.
6. The marine energy tender vessel of claim 1, wherein the fuel tank is a multi-layered structure comprising an inner layer, a middle layer, and an outer layer, with insulation disposed between the middle layer and the outer layer.
7. The marine energy tender vessel of claim 6, wherein the insulation is filled with an insulating material.
8. The marine energy supply vessel according to claim 6, wherein the heat insulating portion is covered with a heat insulating material, the inside is hollow, and the hollow portion is vacuum-adjustable according to the operating temperature T of the fuel tank.
9. The marine energy tender vessel of claim 8, wherein the vacuum level adjustment comprises a primary adjustment, a secondary adjustment, a tertiary adjustment, a quaternary adjustment; when the fuel tank operating temperature T is more than or equal to 0 ℃, the vacuum degree is subjected to primary regulation, no corresponding regulation content exists in the primary regulation, when the fuel tank operating temperature T is more than or equal to-55 ℃ and the fuel tank operating temperature T is less than 0 ℃, the vacuum degree is subjected to secondary regulation, the vacuum degree is less than 10Pa after the secondary regulation, when the fuel tank operating temperature T is more than or equal to-165 ℃ and the fuel tank operating temperature T is less than or equal to-55 ℃, the vacuum degree is less than 10 -2 Pa after the tertiary regulation, and when the fuel tank operating temperature T is more than or equal to-263 ℃ and the fuel tank operating temperature T is less than or equal to-165 ℃, the vacuum degree is subjected to quaternary regulation, and the vacuum degree is less than 10 -4 Pa after the quaternary regulation.
10. The marine energy supply vessel according to claim 1, wherein the liquid fuel storage unit is disposed in a middle portion of the vessel in a longitudinal direction, the electricity storage unit is disposed at a stem or stern, and is disposed at an interval between the electricity storage unit and the liquid fuel storage unit, a partition bulkhead is disposed between the electricity storage unit and the liquid fuel storage unit, a fire fighting unit is disposed on the partition bulkhead, and the fire fighting unit includes a plurality of water mist spray heads.

Description

Marine energy supply ship Technical Field The application relates to the technical field of ship energy supply, in particular to a ship energy supply ship. Background With the continuous promotion of global greenhouse gas emission reduction, the shipping industry is an important field of greenhouse gas emission, and the decarburization process is widely focused. In order to achieve the goal of zero emission of greenhouse gases in the shipping industry, improvements in the supply and replenishment technology of ship energy are needed. In the prior art, the use ratio of traditional fossil fuels is gradually reduced, and clean alternative energy sources such as LNG fuel, methanol fuel, ammonia fuel, electric power and the like are widely explored and applied, so that the method becomes a main development direction of ship energy sources. However, in the process of rapidly converting the energy of the ship into diversified clean energy, the construction of the matched energy supply infrastructure is seriously lagged, and the imperfection of core supply facilities such as a transfer facility, a filling facility and the like becomes a key bottleneck for restricting the decarburization process of the shipping industry. Particularly, due to uncertainty of selection of the type of the marine energy source in the future, enough market power is lacking in the industry for building various clean fueling facilities, so that the layout and the construction of the supply facilities cannot be matched with the speed of converting the marine energy source, and the dilemma of ship supply is further aggravated. Under the background, the marine energy supply ship is expected to be a flexible and efficient mobile filling solution, and becomes a feasible path for solving the current supply problem. The conventional refueling ship has the defects that firstly, the conventional refueling ship is single, for example, the conventional refueling ship can only be adapted to one fuel, and cannot flexibly adapt to the concurrent diversified energy requirements of various clean fuels such as LNG, methanol and ammonia, the conventional refueling ship is extremely poor in universality, secondly, the energy consumption of the conventional refueling ship is high and the cost is high, the conventional refueling ship can generate surplus boil-off gas in the transportation and refueling processes, the conventional refueling ship is additionally provided with a combustion device or a reliquefaction system for processing the fuel, the equipment energy consumption is increased, the operation cost is increased, the energy waste is caused by a combustion processing mode, thirdly, the energy utilization efficiency is low, the conventional refueling ship cannot effectively recover and convert the boil-off gas generated in the cargo transportation and refueling processes into available energy, the energy loss is serious, the core requirements of energy conservation and decarburization are not met, fourthly, the multifunctional service is lost, the conventional refueling ship can only realize the refueling function of the single fuel, the integrated refueling scheme cannot meet the integrated requirements, and the integrated refueling requirements are not met, and the integrated requirements of the integrated refueling ship cannot be further met under the condition of the integrated refueling is further limited. In summary, the existing marine energy supply ship has the defects of single supply, unreasonable evaporated gas treatment, low energy utilization rate, single function and the like, cannot adapt to the trend of diversified transformation of the marine energy, and is difficult to meet the energy supply requirement under the decarburization strategy of the shipping industry, so that development of a marine energy supply technical scheme capable of solving the technical problems is needed. Disclosure of Invention The embodiment of the application aims to provide a ship energy supply ship, which can be suitable for meeting the ship energy supply scene under the emission reduction requirement of greenhouse gases in the shipping industry. The application particularly provides a marine energy source supplementing ship, the system comprises an electric propulsion system, a liquid fuel storage unit, a power generation unit, a power storage unit and a control unit: The power storage unit comprises a power storage device; The power generation unit is arranged in the cabin area of the ship and comprises power generation equipment, wherein the power generation equipment is electrically connected with the power storage unit and is used for charging the power storage equipment; the liquid fuel storage unit is used for placing a fuel tank, and the fuel tank is connected with the power generation equipment and provides fuel for the power generation equipment; the control unit is respectively connected with the power generation unit, the power storage unit, the l