城市污水处理厂鼓风机房通风设计分析

本文介绍了城市污水处理厂鼓风机房通风设计的重要性，分析了鼓风机房的进气系统及排气系统的设计要点，并介绍了肇庆污水处理厂的鼓风机房设计实例。     

远程通信机房安全监控系统在邯钢通信网中的应用

本文详细介绍了邯钢通信网远程通信机房安全监控系统的构成、功能和应用,从而为远程通信机房安全运营提供了解决方案.     

安装公司四处"抓壮丁"工人作业仅系一根麻绳

空调安装:命悬一线的监管盲区 近来,空调安装工在高空作业时不慎失足坠楼的消息不时见诸报端,引发了人们对空调安装行业的关注.     

脉冲喷吹滤筒除尘器在低尘环境中应用的可行性分析

为拓宽脉冲喷吹滤筒除尘器的应用范围,结合目前低浓度粉尘环境中特别是在空调净化系统中除尘、净化技术的发展和滤筒式除尘技术的优点,通过对脉冲喷吹滤筒除尘器在低浓度粉尘环境中的应用分析,特别是在空调净化系统中的应用分析,说明脉冲喷吹滤筒除尘器可以解决目前低浓度粉尘环境特别是空调净化系统中存在的一系列问题,对低浓度粉尘环境具有很好的除尘净化效果,且适合低浓度粉尘环境的特殊要求,在低浓度粉尘环境中应用时具有可行性和可靠性,从而进一步拓宽脉冲喷吹滤筒除尘器的应用范围。     

空调系统中温湿度与真菌污染关系的研究

良好的空气质量对人们的健康有着重要的意义。为了了解空调系统中温湿度与真菌污染的关系．利用真菌指数的方法来对其进行评价研究。结果表明环境温湿度都与真菌的生长具有显著相关性,其相关性系数分别为：r=0．912,P〈0．05;r=0．995,P〈0．05。相对湿度的变化对真菌指数的影响要大于温度的变化,减小相对湿度有助于抑制真菌的生长。     

“中国X都”的无奈

凌晨,拖着行李踏上站台,在告别了污浊的空调车厢后,我忍不住深吸一口夜晚的清凉空气,刚一张口,却觉得一股细细的灰尘夹杂着硫化物的呛人气味直奔喉头,吸也不是,呼也不是,禁不住剧烈咳嗽起来。     

医疗机构合同能源管理节能机制的实施

医疗卫生设施是公共建筑中一个重要而特殊的领域,它承担着保障广大民众健康的重任。伴随社会改革发展．我国卫生保健事业发展取得骄人成绩,各地医疗卫生均配置了大量先进诊疗设备．建立了完备的检验、分析、诊断用实验室。医疗建筑条件普遍改善．除医疗设备的用能外．空调通风系统的用能成为典型的高能耗建筑．占据了建筑总用能的40％-65％．给能源和环境带来了更重的压力。     

爱臭氧层就是爱自己

“杞人忧天”时至今日已经不再是庸人自扰。很多人认为,咱普通老百姓还能管到大气层里的事吗？其实不然,我们少开一会汽车,天热时将空调温度调高1℃,修冰箱时选择正规的修理店……,这些都可以让大气层少受一点伤害,也减少了人类患皮肤癌、白内障的机会。     

Physical characteristics of conditioned anaerobic digested sludge – A fractal, transient and dynamic rheological viewpoint

The changes in the physical characteristics of unconditioned and conditioned anaerobic digested sludge (ADS) biosolids, such as capillary suction time (CST), yield stress, average size and fractal dimensions, were investigated through a CST test, transient and dynamic rheological test and image analysis. The results showed that the optimum polymer dose range was observed when CST or its reciprocal value was employed as an indicator. There were good correlations between the yield stresses determined from both a controlled shear stress test and a strain amplitude sweep test. The yield stress and storage modulus (G′) increased as the polymer dose increased in most cases. A frequency sweep test revealed that polymer conditioning could extend the frequency sweep ranges for their elastic behaviors over viscous behaviors as well as the gel-like structure in the linear viscoelastic range. These results implied that more deformation energy was stored in this rigid structure, and that elastic behavior became increasingly dominant with the addition of the polymer in most cases. In addition, both the average sizes and two-dimensional fractal dimensions for conditioned ADS biosolids presented a similar up-climax-down variation trend as the polymer doses increased, whereas the critical polymer doses at the highest average sizes or two-dimensional fractal dimensions, were different. Correlation analysis revealed that the conditioned ADS dewaterability was not correlated with the yield stresses, while the average sizes or the two-dimensional fractal dimensions for conditioned ADS biosolids could be taken as the indication parameters for ADS dewaterability.     

电子信息系统机房的火灾危险性分析及对策研究

电子信息系统机房具有设备、设施长时间运行、电气线路多而复杂、设备运行过程温度高、作业场所易燃、可燃材料较多的特点,极易导致火灾事故的发生。本文针对电子信息系统机房的特点,对其存在的火灾危险性进行了分析,提出了预防电子信息系统机房火灾事故的具体措施。