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Vessel main engine energy-saving rotation speed measuring and selecting method and system for realizing same

A technology for ship main engine and speed measurement, which is applied in the direction of measuring device, relative volume flow measurement, liquid/fluid solid measurement, etc., to achieve the management of energy saving and consumption reduction, and the effect of energy saving and consumption reduction management

Inactive Publication Date: 2009-09-02
南京长江油运有限公司
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Problems solved by technology

[0004] Purpose of the invention: The present invention aims at the deficiency of the existing optimal fuel consumption measurement and selection method for ship voyages, and provides an energy-saving speed measurement and selection method for ship main engines that can be applied according to the different conditions of each ship for each voyage

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  • Vessel main engine energy-saving rotation speed measuring and selecting method and system for realizing same
  • Vessel main engine energy-saving rotation speed measuring and selecting method and system for realizing same
  • Vessel main engine energy-saving rotation speed measuring and selecting method and system for realizing same

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Embodiment Construction

[0025] The invention discloses a method for measuring and selecting an energy-saving rotational speed of a main engine of a ship, which comprises the following steps:

[0026] Step 1, calculate the slowest speed allowed in the voyage of the ship through the voyage distance between the departure port and the destination port and the voyage target time;

[0027] Step 2. According to the speed range of the main engine set when the ship leaves the factory and the slowest ship speed obtained in the previous step, the minimum speed of the main engine for ship sailing is obtained, so as to determine the speed range of the main engine for ship sailing. After the ship sets sail, the speed of the main engine when the ship sails at the slowest speed is the minimum speed of the main engine when the ship is sailing. Since the cargo capacity of the ship is different each time when sailing, and the amount of cargo capacity has a great influence on the speed of the main engine of the ship and...

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Abstract

The invention discloses a vessel main engine energy-saving rotation speed measuring and selecting method, which comprises the following steps that: a vessel begins sailing from the lowest rotation speed in a main engine rotation speed range, and oil consumption in a unit distance is calculated according to a sailing distance and oil consumption of the vessel; the vessel sails increasingly in the main engine rotation speed range, and rotation speeds are recorded in turn; when the vessel sails a cycle in the main engine rotation speed range, the oil consumption in the unit distance and corresponding route speeds in the full main engine rotation speed range are acquired; and the main engine rotation speed which is greater than the slowest route speed and corresponds to the lowest oil consumption in the unit distance is selected from all the data for sailing. The invention also discloses a marine main engine energy-saving rotation speed measuring and selecting system, which comprises an oil inlet pipe flowmeter, an oil return pipe flowmeter, and an oil consumption integrating meter which is electrically connected with the oil inlet pipe flowmeter and the oil return pipe flowmeter; and the oil consumption integrating meter is also electrically connected with a speed measuring device. The method and the system greatly save the oil consumption and have obvious effects.

Description

technical field [0001] The invention relates to a method for measuring and selecting a rotational speed of a main engine of a ship and a system for realizing it, in particular to a method for measuring and selecting an energy-saving rotational speed of a main engine of a ship and a system for realizing it. Background technique [0002] As we all know, the fuel-consuming equipment on ships mainly includes ship main engines, diesel generators, boilers and other equipment. Among them, the most important fuel-consuming equipment in ship navigation is the main engine. Ship fuel consumption mainly occurs when the ship’s main engine is running to provide navigation power to the ship. In theory, there is an optimal coordination point among the ship, main engine, and propeller, and the unit fuel consumption rate of the ship is optimal at this time. However, due to the influence of the specific navigation environment, such as the cargo capacity of the ship, the draft of the ship, oce...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P3/42G01F9/00
Inventor 王涛黄政汉张峰祥夏鹏九李绍球曹慧英董健
Owner 南京长江油运有限公司
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