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1986年5月27日～1986年8月13日,我们对DPC-1500型电焊排烟除尘机组的样机进行了实验室和使用现场的卫生技术测定。一、测定方法 1.机组的除尘效率及烟尘排放浓度测定方法在机组前水平直管的气流稳定段上取一采样点,用JSC-Ⅲ型粉尘采样仪连接采样管进行外部等速采样,采样流量由该点的动压值决定,在机组出风口处用JSC-Ⅱ型和JSC-Ⅲ型粉尘采样仪分别连接滤膜夹进行采样,流量为25L/min。除尘机
From May 27, 1986 to August 13, 1986, we carried out laboratory and field hygienic techniques for the prototype of the DPC-1500 electric welding smoke exhaust dust removal unit. First, the determination of 1. The unit of dust removal efficiency and smoke emission concentration determination method In the unit before the horizontal straight tube air flow stability of a sampling point, with JSC-Ⅲ type dust sampler connected to the sampling tube for constant external sampling, sampling The flow rate is determined by the dynamic pressure value of this point. At the air outlet of the unit, the filter clips are connected with the JSC-Ⅱ and JSC-Ⅲ dust samplers respectively for sampling at a flow rate of 25 L / min. Dust removal machine