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    张琦, 张旭辉, 周伟杰, 刘斌, 陈茸. 无锡市新建公共场所集中空调通风系统卫生学调查[J]. 环境卫生学杂志, 2017, 7(3): 213-217. DOI: 10.13421/j.cnki.hjwsxzz.2017.03.007
    引用本文: 张琦, 张旭辉, 周伟杰, 刘斌, 陈茸. 无锡市新建公共场所集中空调通风系统卫生学调查[J]. 环境卫生学杂志, 2017, 7(3): 213-217. DOI: 10.13421/j.cnki.hjwsxzz.2017.03.007
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    ZHANG Qi, ZHANG Xuhui, ZHOU Weijie, LIU Bin, CHEN Rong. Hygienic Investigation on the Central Air Conditioning and Ventilation System of New Public Places in Wuxi City[J]. Journal of Environmental Hygiene, 2017, 7(3): 213-217. DOI: 10.13421/j.cnki.hjwsxzz.2017.03.007
    Citation: ZHANG Qi, ZHANG Xuhui, ZHOU Weijie, LIU Bin, CHEN Rong. Hygienic Investigation on the Central Air Conditioning and Ventilation System of New Public Places in Wuxi City[J]. Journal of Environmental Hygiene, 2017, 7(3): 213-217. DOI: 10.13421/j.cnki.hjwsxzz.2017.03.007
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    无锡市新建公共场所集中空调通风系统卫生学调查

    Hygienic Investigation on the Central Air Conditioning and Ventilation System of New Public Places in Wuxi City

      摘要
    • 摘要:
      目的 探索无锡市新建公共场所集中空调通风系统卫生状况。
      方法 依据《公共场所集中空调通风系统卫生规范》、《公共场所集中空调通风系统卫生学评价规范》，通过现场调查和卫生检测于2014年—2015年对无锡市26家新建公共场所集中空调通风系统进行卫生学评价。
      结果 不同功能区使用不同类型的空调通风系统，大空间使用混合式（新风+回风）空调系统即全空气方式，小空间使用新风机组加风机盘管（或回风箱机组）即空气—水系统。所有集中空调通风系统（26/26）均安装新风初效过滤器、回风口过滤网、风口防护网，新风均直接取自室外，常见新风口位置依次为侧墙、屋顶和新风竖井。34.6%（9/26）集中空调通风系统使用风冷热泵为冷热源，65.4%（17/26）集中空调通风系统使用离心式/螺杆式冷水机组为冷源、板式换热器/蒸汽锅炉为热源。卫生制度不完整，缺乏空调通风系统定期的清洗消毒方案和应急预案。26家公共场所卫生初检平均合格率46.2%，不符合项有风管内表面的细菌总数和真菌总数、送风口的可吸入颗粒物（PM10）、细菌总数和真菌总数，经有效清洗消毒后复测检测合格率100%。
      结论 无锡市新建公共场所集中空调通风系统设计基本符合要求，但卫生制度有待完善。过半数新建场所集中空调通风系统卫生指标不达标，建议新建场所在正式营业前清洗消毒集中空调通风系统。

       

      Abstract:
      Objective To explore the hygienic status of central air conditioning and ventilation systems in new public places of Wuxi.
      Method Based on the Hygienic standard and hygienic evaluation standard for central air conditioning and ventilation system in public places(WS/T 395-2012), 26 new public places in Wuxi were investigated in 2014—2015, including field investigation and hygienic examination.
      Results Different types of air conditioning and ventilation systems were used in different functional zones. Hybrid air conditioning system, a full air mode, was used in large space; while fresh air unit and fan coil (or return box unit), an air-water mode, was used in small space. New air primary efficiency filter, return air filter and air inlet protection network were fitted in 100% (26/26) of places. Fresh air was all taken directly from outdoors. The position of new air port was set on the side wall > roof > fresh air shaft. Air-cooled heat pump was used as cold and heat source in 34.6% (9/26) of places; centrifugal/screw chiller was used as cold source and heat exchange/steam boiler was used as heat source in 65.4% (17/26) of places. The hygienic systems were not complete and lack of regular cleaning and disinfection program and contingency plan for the air conditioning and ventilation system. The mean qualified rate in the initial inspection was 46.2% in 26 public places. Unqualified indicators were total bacterial count and the total number of fungi on the inner surface of air ducts, PM10 and the total number of bacteria and fungi of air outlet. The qualified rates were 100% after effective cleaning and disinfection.
      Conclusions The design of centralized air conditioning and ventilation system in new public places was basically meeting the requirement, but the hygienic system needs to be improved. The hygienic indicators could not meet the requirement of the standard in over half of central air-conditioning systems in this study. It was recommended that to clean and disinfect the centralized air conditioning system before officially opening new public places.

       

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