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目的:设计一种应用自携式电源加热的保暖潜水服，解决潜水员水下低温保暖问题。方法:采用防水、保暖和加热综合技术设计电热干式保暖潜水服，潜水服包括防水层、加热保暖层和水下电池组。结果:无人实验和人体试验结果表明，潜水服具有水密、3.155克罗(CLO)保暖能力、电加热能力，可保障潜水员在(10±2)℃水温环境下维持体心温度35.8℃以上5 h。结论:电热干式保暖潜水服可水下加热保暖，解决高压低水温环境下工作的低温问题，为潜水员提供水下所需热能，使潜水员在水下保持正常体温，有助于提高水下作业能力。“,”Objective:To design an electrically-heated dry diving suit with a portable power supply for divers to keep warm in a low temperature underwater environment.Methods:To synthesize the technological solutions of waterproofing, thermal insulation, and electrical heating, to design an electrically-heated dry diving suit with a waterproof layer, a heating and thermal insulation layer, and an underwater lithium battery pack.Results:The results of both unmanned and manned testing showed that the electrically-heated dry diving suit with water tight, thermal protection with CLO value of 3.155, and electrically heating could, ensure that divers maintain their core body temperature above 35.8℃ over 5 h in (10±2)℃ underwater environments.Conclusion:The electrically-heated dry diving suit can electrically generate heat and keep divers warm underwater, prevent hypothermia of divers and maintain their normal body temperature in a high pressure and cold environment, so as to improve their underwater operation capability.