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高压舱舱内的空气,在使用过程中,有升压──稳压──减压的多变状态。根据理想气体状态方程:PV=GRT,当舱内气体容积不变,改变舱内气压时,舱内气温随气压变化成正比。所以当高压舱没有空调设备的条件,进行空气升压时,舱内气温可高达80℃左右。当舱内空气快速减压时,舱内气温可降到零下20℃左右。过去,当没有空调设备的高压舱,夏季给潜水减压病人治病时,在空气升压前,令舱内人员全身浸泡在水中,用此来防暑。还有在舱体内外堆放冰块降温。在舱内空气减
High-pressure cabin of air, in the course of use, there is a step-up - regulation - decompression of the changing state. According to the ideal gas equation of state: PV = GRT, when the volume of gas in the tank is unchanged, when the pressure in the tank is changed, the temperature in the tank is proportional to the pressure change. Therefore, when the high-pressure tank air conditioning equipment without the conditions for air pressure, the cabin temperature can be as high as 80 ℃. When the rapid decompression of the cabin air, the cabin temperature can be reduced to minus 20 ℃ or so. In the past, when there was no hyperbaric chamber for air-conditioning equipment to treat patients with decompression sickness in summer, before the air pressure was raised, the cabin crew were immersed in water to prevent summer heat. There are ice cubes inside and outside the cabin cooling. Less air in the cabin