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建立了隔离病房的二维简化模型,利用动态网格技术模拟了门旋转开启(向病房内开启和向病房外开启)和推拉开启两种模式下,开门过程中病房内外的压力变化和通过门框的气流流动状态。结果显示,推拉开启对门周围气流的影响最小;门向病房内开启时,门刚开启阶段引起病房内压力增大,造成病房内污染空气外泄;门向病房外开启时,靠门运动的引带作用将病房内的污染空气带出。建议采用推拉开启,对不能使用推拉门的场合,门应开向污染区域。
A two-dimensional simplified model of isolation ward was established. Dynamic grid technology was used to simulate the pressure changes both inside and outside the ward and the door frame when the door was opened (to the ward and to the ward) Of the air flow state. The results show that the push-pull open door on the impact of the smallest air flow; the door open to the ward, the door just opened the stage caused by increased pressure within the ward, resulting in ward contaminated air leaks; With the role of the ward contaminated air out. It is recommended to push and pull to open, on the occasion can not use the sliding door, the door should open to the contaminated area.