External circulation type environmental control system

Abstract

The invention relates to the technical field of saturation diving, in particular to an external circulation type environmental control system. The external circulation type environmental control system comprises an environmental control machine and a cold and hot water unit; the environmental control machine is arranged outside a pressurized cabin of diving equipment and connected with the pressurized cabin through a pressure bearing air pipe to obtain gas in the pressurized cabin and conduct gas quality management on the gas so as to provide the gas subjected to gas quality management for thepressurized cabin; and the cold and hot water unit is arranged outside the pressurized cabin and connected with the environmental control machine through a medium water pipeline to provide medium water needed in the gas quality management process for the environmental control machine. According to the external circulation type environmental control system provided by the invention, the gas in thepressurized cabin of the diving equipment can be managed, the environmental control machine is arranged outside the pressurized cabin, and thus the comfort degree of residing of divers in the pressurized cabin can further be increased.

Description

technical field [0001] The present application relates to the technical field of saturation diving, in particular to an external circulation environment control system. Background technique [0002] Saturation diving operations are high-risk and high-intensity operations. Usually, divers live in pressurized cabins, and pressurized cabins are closed environments with small spaces and high ambient pressure, so the ambient gas is very different from the standard atmospheric environment. Therefore, how to It is particularly important to maintain the comfort of the diver's living environment so that it can rest normally. [0003] At present, helium occupies a relatively large proportion of the ambient gas used in saturation diving technology. In this environment, the surface of the human body dissipates heat faster, which directly affects the human body’s sensitivity to cold and heat. In the living cabin, the increasing humidity and harmful gas content such as carbon dioxide in ...

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Problems solved by technology

[0003] At present, helium occupies a relatively large proportion of the ambient gas used in saturation diving technology. In this environment, the surface of the human body dissipates heat faster, which directly affects the human body’s sensitivity to cold and heat. In the living cabin, the increasing humidity and harmful gas content such as carbon dioxide in the cabin will threaten the health and even life of divers, and the noise in the cabin is also an important factor that directly affects the rest quality of divers

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