利用等速采样原理克服动压平衡型烟尘采样仪在寒冷地区不能正常工作的问题  

Use equal-speed sampling principle to resolve the question of the sampling instrument of the balanced fumes of the dynamic pressure that can't operate normally in the frigid areas

作　　者：刘洪昌 金美子 穆英杰 

机构地区：[1]北满特殊钢股份有限公司安全环保处,黑龙江齐齐哈尔161041

出　　处：《中国环境监测》2000年第1期51-52,共2页Environmental Monitoring in China

摘　　要：根据等速采样原理 ,探讨在标准状态下 ,采样体积的计算公式。当气温在 0℃以下采样时 ,略去累计流量计、流量计前压力表、流量计前温度表 ,即不再用上述仪表测得参数求算采样体积 ,实现了冬季采样又简化了设备的结构。According to the equal speed sampling principle, we obtain the calculating formula for the sampling volume in standard state. When we want to gather the sampling fumes below 0℃, we can omit the total of the flow gauge, the pressure gauge in the front of the flow gauge, the thermometer in the front of the flow gauge. That is to say we don't have to use the instruments mentioned above to measure the paramerts to calculate the sampling volume. So we realize sampling in wrinter and simplify the structure of the instruments.

关 键 词：等速采样 动压平衡 大气监测 烟尘 采样仪 

分 类 号：X831.01[环境科学与工程—环境工程]