A combined supply system for tanker waste heat cargo oil heating, ballast water heating, and refrigeration

Abstract

The invention discloses a triple co-generation system for heating cargo oil and ballast water and performing refrigeration by waste heat of an oil tanker. The system comprises a waste heat boiler, a hot water pump, a generator, an expander, a compressor, a cargo oil hating coil, a condenser, an evaporator, a working medium pump, a cooling water pump, a ballast water heating coil, a first valve, a second valve, a third valve, a fourth valve, a fifth valve and a connecting pipeline, wherein the outlet of the generator is connected with the first valve and the third valve which are used for enabling the cargo oil heating coil or the expander to work respectively, the generator forms a loop together with the cargo oil heating coil through the first valve, and the outlet of the cargo oil heating coil is connected to the inlet of the generator; the outlet of the generator forms an organic Rankine cycle together with the expander, the condenser and the working medium pump through the third valve; the compressor forms a refrigeration cycle together with the condenser, the fourth valve and the evaporator. According to the system, the three functions of heating cargo oil and ballast water and performing refrigeration are realized by recovering the waste heat, and the energy-saving effect is remarkable.

Description

technical field [0001] The invention relates to the field of energy utilization, in particular to a triple supply system of waste heat cargo oil heating, ballast water heating and refrigeration of a tanker. Background technique [0002] Petroleum is the lifeblood of the national economy, and the stable and economical supply of oil products is the basis for the sustainable development of the modern economy and social stability. With the rapid development of our economy, my country's demand for oil is also growing rapidly, but the growth of domestic oil production is very slow, which is far from meeting the needs of consumption growth. The gap between supply and demand of oil can only be made up through imports. At present, oil tankers The fleet is undertaking the task of importing crude oil transportation, and the control of transportation costs is a problem that every operating company must carefully consider. In addition to the energy consumption of transportation power, th...

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Problems solved by technology

Tankers have a large demand for energy in the three aspects of cargo oil heating, loading water heat treatment, and equipment cooling operation. If the electric energy output by the diesel engine for power generation is used as the energy supply for the three aspects, there is a serious waste of energy.

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