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针对地下商场可能出现的污染物全面超标、局部超标等五种情况以及室内两种污染物并存的实际情况,通过数值模拟方法对复合净化器的最佳安装位置进行了研究。结果表明,应根据地下商场内的污染状况确定复合净化器的安装位置,大多数情况下宜将复合净化器安装在一次回风空调系统的回风道上,但当局部区域污染物严重超标时,宜采用在污染源附近就近设置或就近设置与回风道设置的组合方式;当复合净化器设置在污染源附近时,应根据同时并存的多种污染物的释放强度和浓度限值等因素综合确定其安装位置。
According to the five kinds of pollutants that may appear in the underground shopping malls, such as exceeding the standard completely, the partial exceeding standard, and the actual situation of the coexistence of the two indoor pollutants, the optimal installation position of the composite purifier is studied by the numerical simulation method. The results show that the location of the compound purifier should be determined according to the pollution status in the underground shopping malls. In most cases, it is advisable to install the compound purifier on the return air duct of a return air conditioning system. However, when the pollutants in the local area seriously exceed the standard, It is advisable to adopt the combination of setting near or near the return air duct in the vicinity of the pollution source; when the composite purifier is disposed in the vicinity of the pollution source, the compound purifier should be comprehensively determined according to the release strength and concentration limit of multiple pollutants coexisting Installation location.