生物安全实验室空调机组冬季防冻对策探讨

详细信息    查看全文 | 推荐本文 |

英文篇名：Discussion on anti-freezing countermeasure for air conditioning unit of bio-safety laboratory 作者：谷鑫 ; 李雪柏 ; 王晓雪 ; 崔琮琪 ; 郭晓敏 ; 王欣儒 ; 谭吉宾 英文作者：GU Xin;LI Xue-bo;WANG Xiao-xue;Center of Logistics Operation Management, Chinese Center for Disease Control and Prevention; 关键词：生物安全实验室 ; 空调供暖 ; 空调机组 ; 表冷器 ; 冬季防冻 英文关键词：Biological safety laboratory(BSL);;Air conditioning heating;;Air conditioning unit;;Surface cooler reagent;;Winter anti-freezing 中文刊名：YXZB 英文刊名：China Medical Equipment 机构：中国疾病预防控制中心后勤运营管理中心; 出版日期：2018-03-15 出版单位：中国医学装备 年：2018 期：v.15;No.163 基金：中国疾控中心昌平园区实验室及工作维持运行项目(1311500000102)“实验室空调系统维护管理” 语种：中文; 页：YXZB201803038 页数：4 CN：03 ISSN：11-5211/TH 分类号：133-136

摘要

目的:分析生物安全实验室空调机组冬季冻裂的原因,提出解决对策。方法:分析实验室空调供暖系统的基本情况,针对空调设计、热媒温度、水流速、防冻报警及冷风渗透等进行深入分析,并提出改进措施。结果:通过分析,找出了产生冬季发生冻裂原因为空调机组以制冷为设计参数、热媒温度过低、水流速过低、防冻报警存在误差、新风阀密闭性差以及表冷器排水不彻底等因素。采取空调分冬夏季模式设计、保持热媒一次出水在70~90℃、定期维修保养循环泵、加装水过滤器、设置排气装置、使用保温密闭型新风阀、机组彻底排水以及设置旁通等措施后,科学有效地解决了空调机组冬季冻裂问题。结论:针对生物安全实验室空调机组冬季冻裂的问题采取有效可行的对策,能够取得较好的改进效果,提高生物安全实验室保障水平,为今后生物安全实验室空调系统的设计和管理提供可借鉴的经验。
        Objective: To analyze the causes of frost cracking of air conditioning units of biological safety laboratory in winter, and propose countermeasure for them. Methods: The basic situation of heating system of air conditioning of laboratory was analyzed. The air conditioning design, heat medium temperature, water flow speed, anti-freezing alarm and cold air infiltration were deeply analyzed, and then the relative improved measurements were proposed. Results: As the results of analysis, the reasons of frost cracking included that the refrigeration of air conditioning unit was determined as the design parameter, the temperature of heat medium was too low, water flow rate was too low, there was error existed in anti-freezing alarm, the impermeability was poor, and draining away water of surface air cooler was halfway. A series of measurements, that included winter and summer mode of air conditioning was adopted, the temperature of draining away water of heat medium was kept at 70-90℃, the circulating pump was periodically maintained, water filter was installed, air exhausting device was installed, outside air valve of airtight was adopted, completely drainage of units was applied and bypass of equipment was set, were adopted to scientifically resolve frost cracking problem of air conditioning units in winter. Conclusion: Adopt effective and feasible countermeasures to solve the problem of frost cracking for air conditioning unit of biological safety laboratory in winter. And these measurements can obtain better improved effect and enhance the guarantee level of bio-safety laboratory, and can provide referential experience for the design and management of air conditioning system in biological safety laboratory.

引文

[1]谢景欣,王欢,王建锋,等.负压二级生物安全实验室设计关键控制点分析[J].暖通空调,2013,45(5):38-42.
    [2]靳晓军,李京京,程洪亮,等.高等级生物安全实验室风险及其对策[J].生物技术通讯,2015,26(5):704-707.
    [3]刘培源,李侃,李著萱.高等级生物安全实验室全新风直流空调系统热回收方案分析[J].暖通空调,2011,41(9):31-33.
    [4]宋旭,朱彤,庄迪君,等.空调表冷器降温除湿能力图[J].暖通空调,2015,45(1):38-41.
    [5]任秀宏,郑立国.空调表冷器热工性能测试的实现及分析[J].实验室研究与探索,2012,31(7):45-48.
    [6]江满发,张明旭,尤若宁,等.手术室净化空调机组的水冷式表冷器在冬季运行中冻裂的原因分析及解决方案[J].中国医学装备,2017,14(7):150-151.
    [7]高鹏,刘忠华.北方地区暖通设备冬季防冻技术措施[J].低温建筑技术,2011(12):123-124.
    [8]刘敏,王远鹏,石靖峰,等.变频多联式空调系统再热除湿性能的实验研究[J].制冷学报,2016,37(2):101-106.
    [9]郑中平.空调机组盘管防冻技术措施[J].洁净与空调技术,2015(1):78-82.
    [10]赵侠.高等级生物安全实验室暖通消防设计探讨[J].暖通空调,2013,43(10):70-74.
    [11]高鹏,刘忠华.严寒区暖通空调设计与运行存在的问题[J].低温建筑技术,2014(6):36-38.
    [12]刘静晓,吴熙.高寒地区空调系统防冻问题浅析[J].医药工程设计,2011.32(5):44-46.
    [13]周旋.冷水机组的防冻技术研究[J].建筑节能,2013(6):21-23,32.
    [14]张彦国.生物安全实验室严密性分析[J].暖通空调,2014,44(1):97-100.
    [15]郭建辉.空调工程表冷器防冻研究[J].机电信息,2014(16):73-75.
    [16]张超甫,张丽娜.关于我国北方寒冷地区净化空调新风机组防冻研究[J].洁净与空调技术,2013(4):88-90.
    [17]李晓梅,刘士龙,孙锦,等.浅谈我院脑科手术室净化空调系统的改造[J].中国医疗设备,2015,30(4):107-109.