A domestic sewage discharge system for deep saturated submersible living quarters

Abstract

The invention relates to a domestic sewage discharge system for a large-depth saturated submersible living cabin. A sewage tank is arranged below the living cabin, and an electric control box controls the upper automatic on-off valve, the lower automatic on-off valve, the exchange pipeline automatic on-off valve, the intake valve and the air release. The valve is also equipped with a diving helium recovery system and a saturated diving gas source system. The invention sets up a saturated diving air source system to pressurize the sewage tank and the living cabin together, and the toilet cover and the upper electric switch valve are designed in linkage to avoid the risk of personal injury caused by misoperation under high pressure conditions. The gas recovery system is used to recycle the gas to reduce the loss of diving gas. The electrical control box provides stable and reliable valve body opening and closing control and liquid level monitoring to prevent harmful gas accumulation and dirt overflow. The air purification device can assist in the removal of excrement. Harmful and odorous gas, improve the air environment in the cabin.

Description

technical field [0001] The invention relates to the technical field of sewage treatment equipment, in particular to a domestic sewage discharge system for a large-depth saturated submersible living cabin. Background technique [0002] Nowadays, there are only two kinds of diving techniques for humans to directly dive into the sea to engage in various operations, namely conventional diving and saturation diving. Conventional diving is also called air diving. The safe depth of this type of diving divers does not exceed 60 meters, and the working time is short, so they cannot perform continuous, heavy and long-term large-scale underwater operations. Saturation diving means that divers are exposed to high pressure environment for a long time, so that the gas in each tissue in the body is completely saturated. On this basis, as long as the ambient pressure does not change, no matter how long the exposure time is, the decompression time is equal. of. [0003] The saturation divi...

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Problems solved by technology

[0004] Among them, the living cabin is an important living place for divers, and divers can live in it for dozens of days. During this period, divers’ daily activities such as showering, washing, and flushing toilets will generate a large amount of domestic sewage, and the living cabin needs to maintain a high environmental pressure continuously. In this case, how to ensure that the daily sewage of the divers in the cabin can be discharged out of the cabin in a safe and timely manner is a major problem. In particular, when carrying out deep saturation diving, such as 1000 meters, the pressure in the living cabin can reach 10MPa. The discharge of daily sewage becomes difficult to deal with

At present, there is no saturated diving cabin sewage treatment system that can work at large depths in the world, making the sewage treatment of saturated diving cabins a thorny issue

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