Air circulation system and air circulation method of FPSO

Abstract

The invention discloses an air circulation system and an air circulation method of FPSO, which are used in a living building of the FPSO. The air circulation system comprises an air collection system,an air return system, an air supply system, an exhaust system and a system control device, wherein the air collection system is used for pumping fresh air from the outside; the air return system is used for carrying out mixed circulation on air in a cabin; the air supply system is used for supplying air to all positions in the cabin; the exhaust system is used for exhausting the air in the cabinto the outside; and the system control device is electrically connected with the above systems. Air pipes of all the systems are the same; an air volume value is equal to a product of the unit time, an air speed value and an air pipe section area; the system control device can continuously detect and adjust the wind speed of each system; and a sum of a fresh air volume of the air collection systemand an air return volume of the air return system is equal to an air supply volume of the air supply system, and the sum of the air supply volume of the air supply system and the air return volume ofthe air return system is smaller than the air supply volume of the air supply system so that positive pressure is formed between the cabin and the outside, outside air difficultly enters the cabin, and safety of living areas is improved.

Description

technical field [0001] The invention relates to the design planning of FPSO, in particular to an air circulation system and air circulation method of FPSO. Background technique [0002] General-purpose FPSO, as a new concept of floating production and storage unit (FPSO), has universal characteristics, so that it can be oriented to various user needs, and is suitable for multiple sea areas, multiple working conditions, and multiple systems. The characteristics of berth mode and oil transportation form. Due to its special application environment, FPSO faces a higher degree of risk, and may be polluted by surrounding toxic or flammable air. Since this ship type is a new concept ship type, there is no design method for this type of ship for reference, and the living area also reflects the individual requirements of the ship owner or operator, and does not have the characteristics that can avoid the above defects. Contents of the invention [0003] The technical problem to b...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the traditional FPSO living building in the prior art without considering the connection with the outside world, causing harmful gases from the outside world to flow into the cabin in the living building, resulting in low safety. Defects, provide an FPSO air circulation system and air circulation method

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