食品药品检测常用温度类设备的量值溯源及结果确认

目的建立食品药品检测常用温度类设备的量值溯源及结果确认程序。方法针对食品药品检测常用温度类设备存在的问题,按照量值溯源依据将温度类设备分为玻璃液体温度计、机械式温湿度计、温度指示控制仪、温度箱类设备、医用热力灭菌设备温度计、箱式电阻炉六类。详细比较并归纳六类设备量值溯源依据、校准项目及方法、校准周期。结果确认的技术指标和判定方法,为温度类设备的量值溯源提供依据。结论食品药品检测常用温度类设备量值溯源及结果确认程序的建立,为食品药品检测常用温度类设备的计量提供规范管理的依据。

Study and practice of the controlling technique on heat-harm during the tunneling in Zhaolou mine

This paper proposes the cooling system type and cooling equipment type which are deep mine with high temperature during the construction,and presents auxiliary cooling measures making up duct temperature rise since compression and heat transfer temperature rise. The cooling system designed against Zhaolou mine's ground temperature and weather conditions,with its sprinkler room handling an average temperature difference up to 19.5～23.8 ℃,and the average enthalpy difference could reach 48.4～60.7 kJ/kg. At the same time,it gets a series of basic data used for mine construction during the cooling system design and equipment selection according to the measured results; using the analysis software Matlab,it obtains the change relations between the temperature of sprinkler room and fan export supply air temperature,wind casing temperature rise and fan export supply air temperature,working face temperature and supply air temperature,used for the mine cooling which has the similar conditions.