【摘要】：目的在環(huán)控生保系統(tǒng)設(shè)計(jì)初期通過系統(tǒng)仿真的手段完成物質(zhì)流計(jì)算以及方案驗(yàn)證與評(píng)估,為后續(xù)設(shè)計(jì)提供數(shù)據(jù)支撐。方法針對(duì)一類典型的基于物化再生技術(shù)的環(huán)控生保系統(tǒng)建立了動(dòng)態(tài)過程模型,并進(jìn)行了仿真。其中,包括密閉艙大氣環(huán)境變化模型、航天員代謝過程模型、電解制氧過程模型、CO2去除過程模型、緩沖池模型(水箱、氣瓶等)以及各控制算法(壓力控制算法、電解制氧工作流程、CO2去除工作流程等)。結(jié)果仿真結(jié)果表明,當(dāng)水處理子系統(tǒng)每天生成電解水的能力應(yīng)不小于3.14 kg/d,密閉艙總壓不會(huì)小于87 Kpa,氧分壓穩(wěn)定在21至23 Kpa之間,水閉合程度不大于77%。結(jié)論仿真結(jié)果真實(shí)、準(zhǔn)確的展示了基于物化再生技術(shù)的環(huán)控生保系統(tǒng)內(nèi)物質(zhì)流動(dòng)態(tài)轉(zhuǎn)移過程以及密閉艙內(nèi)大氣總壓、氧分壓以及CO2分壓的動(dòng)態(tài)變化過程,為方案驗(yàn)證提供了有力的數(shù)據(jù)支撐。
[Abstract]:Aim in the early stage of design of EHSS, material flow calculation, scheme verification and evaluation were completed by means of system simulation to provide data support for subsequent design. Methods A dynamic process model for a class of typical environmental control and life support systems based on physicochemical regeneration technology was established and simulated. Among them, the model of atmospheric environment change in closed chamber, the model of astronaut metabolism process, the model of electrolytic oxygen production process, the model of CO2 removal process, the model of buffer tank (water tank, gas cylinder, etc.) and the control algorithms (pressure control algorithm), Electrolytic oxygen production process, CO2 removal process, etc. Results the simulation results show that when the capacity of water treatment subsystem to generate electrolytic water per day should not be less than 3.14 kg/d, the total pressure of closed chamber should not be less than 87 Kpa, oxygen partial pressure is stable in the range of 21 to 23 Kpa and the water closure degree is not greater than 77. Conclusion the simulation results show the material flow state transfer process and the dynamic change process of total atmospheric pressure, oxygen partial pressure and CO2 partial pressure in the sealed cabin based on physicochemical regeneration technology. It provides strong data support for scheme verification.
【作者單位】： 中國航天員科研訓(xùn)練中心人因工程重點(diǎn)實(shí)驗(yàn)室;
【基金】：載人航天領(lǐng)域預(yù)先研究項(xiàng)目
【分類號(hào)】：R852.82

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