中华航海医学与高气压医学杂志
中華航海醫學與高氣壓醫學雜誌
중화항해의학여고기압의학잡지
CHINESE JOURNAL OF NAUTICAL MEDICINE AND HYPERBARIC MEDICINE
2011年
2期
102-104
,共3页
顾靖华%方以群%袁恒荣%刘平小
顧靖華%方以群%袁恆榮%劉平小
고정화%방이군%원항영%류평소
潜水呼吸器%二氧化碳吸收剂%氢氧化锂
潛水呼吸器%二氧化碳吸收劑%氫氧化鋰
잠수호흡기%이양화탄흡수제%경양화리
Diving apparatus%Carbon dioxide absorbent%Lithium hydroxide
目的 探讨氢氧化锂吸收剂清除闭式/半闭式潜水呼吸器二氧化碳(CO2)的适用性.方法 选择1种氧氧化锂吸收剂和2种经典的钠石灰吸收剂(钠石灰1、钠石灰2),采用人工肺与国产某闭式潜水呼吸器进行无人实验.定时记录吸收剂罐内的温度及吸收剂罐出EI端气体中CO2 浓度,当CO2 浓度超过1.5%时停止试验,并记录CO2浓度达到0.5%和1.5%的准确时间(T0.5、T1.5).比较填充量、温度、CO2:达到0.5%和1.5%的时间.结果 相同吸收剂罐,氢氧化锂吸收剂的填充质量最小,为1113.5 g,明显低于经典钠石灰吸收剂的填充质量(1845.0 g和1855.5 g),对于克服呼吸器的正浮力是不利的;使用氢氧化锂吸收剂时,吸收剂罐出口端气体中CO2的T0.5和T1.5分别为(86.00±1.63)min和(119.00±2.94)min,钠石灰1的T0.5和T15分别为(55.00±0.82)min和(62.00±1.63)min,钠石灰2的T0.5和T1.5分别为(57.00±2.45)min和(65.00±1.63)min,氢氧化锂吸收剂的使用时间显著长于经典钠石灰吸收剂(P＜0.05),吸收效率好;使用氢氧化锂吸收剂时,吸收剂罐内的温度最高达到191.5℃,是钠石灰1(74.8℃)的2.56倍,是钠石灰2(83.6℃)的2.29倍.结论 本研究采用的氢氧化锂吸收剂可能不适合用作闭式/半闭式潜水呼吸器的CO2吸收剂.
目的 探討氫氧化鋰吸收劑清除閉式/半閉式潛水呼吸器二氧化碳(CO2)的適用性.方法 選擇1種氧氧化鋰吸收劑和2種經典的鈉石灰吸收劑(鈉石灰1、鈉石灰2),採用人工肺與國產某閉式潛水呼吸器進行無人實驗.定時記錄吸收劑罐內的溫度及吸收劑罐齣EI耑氣體中CO2 濃度,噹CO2 濃度超過1.5%時停止試驗,併記錄CO2濃度達到0.5%和1.5%的準確時間(T0.5、T1.5).比較填充量、溫度、CO2:達到0.5%和1.5%的時間.結果 相同吸收劑罐,氫氧化鋰吸收劑的填充質量最小,為1113.5 g,明顯低于經典鈉石灰吸收劑的填充質量(1845.0 g和1855.5 g),對于剋服呼吸器的正浮力是不利的;使用氫氧化鋰吸收劑時,吸收劑罐齣口耑氣體中CO2的T0.5和T1.5分彆為(86.00±1.63)min和(119.00±2.94)min,鈉石灰1的T0.5和T15分彆為(55.00±0.82)min和(62.00±1.63)min,鈉石灰2的T0.5和T1.5分彆為(57.00±2.45)min和(65.00±1.63)min,氫氧化鋰吸收劑的使用時間顯著長于經典鈉石灰吸收劑(P＜0.05),吸收效率好;使用氫氧化鋰吸收劑時,吸收劑罐內的溫度最高達到191.5℃,是鈉石灰1(74.8℃)的2.56倍,是鈉石灰2(83.6℃)的2.29倍.結論 本研究採用的氫氧化鋰吸收劑可能不適閤用作閉式/半閉式潛水呼吸器的CO2吸收劑.
목적 탐토경양화리흡수제청제폐식/반폐식잠수호흡기이양화탄(CO2)적괄용성.방법 선택1충양양화리흡수제화2충경전적납석회흡수제(납석회1、납석회2),채용인공폐여국산모폐식잠수호흡기진행무인실험.정시기록흡수제관내적온도급흡수제관출EI단기체중CO2 농도,당CO2 농도초과1.5%시정지시험,병기록CO2농도체도0.5%화1.5%적준학시간(T0.5、T1.5).비교전충량、온도、CO2:체도0.5%화1.5%적시간.결과 상동흡수제관,경양화리흡수제적전충질량최소,위1113.5 g,명현저우경전납석회흡수제적전충질량(1845.0 g화1855.5 g),대우극복호흡기적정부력시불리적;사용경양화리흡수제시,흡수제관출구단기체중CO2적T0.5화T1.5분별위(86.00±1.63)min화(119.00±2.94)min,납석회1적T0.5화T15분별위(55.00±0.82)min화(62.00±1.63)min,납석회2적T0.5화T1.5분별위(57.00±2.45)min화(65.00±1.63)min,경양화리흡수제적사용시간현저장우경전납석회흡수제(P＜0.05),흡수효솔호;사용경양화리흡수제시,흡수제관내적온도최고체도191.5℃,시납석회1(74.8℃)적2.56배,시납석회2(83.6℃)적2.29배.결론 본연구채용적경양화리흡수제가능불괄합용작폐식/반폐식잠수호흡기적CO2흡수제.
Objective To investigate the applicability of lithium hydroxide ( LiOH) absorbent in closed/semi-closed diving apparatus. Methods One LiOH absorbent and 2 classical sodium lime absorbents ( sodium lime 1 and sodium lime 2) were chosen to carry out unmanned experiments by using the manual lung and a closed breathing apparatus. Temperature in the canister and CO2 level at the outlet of the canister were timely monitored and recorded. When CO2 level in the inhaled gas exceeded 1.5%, the experiment was terminated, and the time when CO2 levels reached at 0. 5% and 1. 5% was recorded. The amounts of absorbents filled, temperatures and the time when CO2 levels reached at 0. 5% and 1.5% were recorded. Results The weight of the LiOH absorbent was minimal (1113. 5 g), which was obviously less than the classical absorbent, sodium lime 1 and sodium lime 2( 1845.0 g and 1855.5 g),which was a disadvantage to the positive buoyancy of the diving apparatus. With the LiOH absorbent, the time for CO2 to reach 0.5% (T0.5) and 1.5% (T1.5) was 86.00 ± 1. 63 min and 119. 00 ± 2. 94 min respectively. While for sodium lime 1, the time for T0.5 and T1.5 were 55. 00 ±0. 82min and 62. 00 ± 1. 63min and for sodium lime 2, the time for T0.5 and T1.5 were 57. 00 ± 2.45min and 65. 00 ± 1. 63min respectively. The T1.5 and T1.5 of the LiOH absorber were obviously longer than those of sodium lime 1 and sodium lime 2 (P＜0. 05). The maximum temperature in the LiOH canister was 191. 5℃,which was 2. 56 times greater than that of sodium lime 1 (74. 8℃) ,and 2. 29 times greater than that of sodium lime 2 (83. 6 ℃ ). Conclusions This kind of LiOH absorber might not be suitable to closed/semi-closed diving apparatus.
