Design and verification of the pressure regulation module in underwater positive pressure protective suit
10.16289/j.cnki.1002-0837.2025.02013
- VernacularTitle:水下正压防护服装压力调控单元设计与验证
- Author:
Qingwei HUANG
1
;
Wanxin ZHANG
;
Dongyue LIU
;
Jialu MA
;
Shaosong LI
;
Hailong FAN
;
Hao HUANG
Author Information
1. 中国航天员科研训练中心,北京 100094;人因工程全国重点实验室,北京 100094
- Keywords:
underwater operations;
underwater positive pressure protective suit;
surface-supplied diving;
dynamic pressure control of gas supply
- From:Space Medicine & Medical Engineering
2025;36(2):159-163
- CountryChina
- Language:Chinese
-
Abstract:
Objective Maintain a sable differential pressure inside the Underwater Positive Pressure Protective Suit(UPPPS)to ensure normal breathing and safe underwater operations for the diver.Methods Utilize a pressure regulator as the UPPPS's pressure control valve to automatically maintain the differential pressure inside the suit.Results By establishing a physical model,the relationship between the steady-state differential pressure with the ventilation flow rate and the ambient pressure was obtained.(1)The ventilation flow rate is positively correlated with the steady-state differential pressure,the higher the ventilation flow rate,the greater the steady-state differential pressure.(2)At the same ventilation flow rate,the larger the ambient pressure is,the smaller the steady-state differential pressure is.Underwater unmanned and manned experiments using the UWT suit were conducted.The expermental results are in agreement with the theoretical analysis.Conclusion The performance of pressure regulator has been verified by the underwater experiments,it effectively stabilizes the differential pressure within the UPPPS.
