自洁式空气过滤器使用维护探讨

对自洁式空气过滤器影响空气压缩机的效率的原因进行了阐述,对自洁式空气过滤器运行中的一些问题进行了分析总结,并提出了自洁式空气过滤器设计改进的方向。     

空压机入口过滤器使用实践

简要说明了自洁式空气过滤器结构原理,对车间大型空压机使用的自洁式空气过滤器状况进行了分析,并比较了过滤器实际使用中的优缺点。     

DA350—61型离心式压缩机增产节能改造

通过利用自洁式空气过滤器和三元流转子技术对DA350—61型空气压缩机进行改造，不仅延长了机组的使用寿命，而且取得了较高的经济效益。     

气动自洁式空气过滤器在螺杆压缩机上的应用

通过在轧钢空压站螺杆压缩机上增设一套气动自洁式空气过滤器，不仅提高机组排气量，延长其使用寿命，同时大大节省维护成本，经济效益明显。     

离心空压机扩压器损坏原因分析及预防

湘潭钢铁股份有限公司动力厂离心式空压机扩压器出现普遍性损坏，自洁式空气过滤器过滤精度低、工作介质不能满足设备工况要求，是导致一级扩压器叶片出现裂纹或前缘边角脱落的主要原因。为此，采取了相应的预防措施。     

莱钢3^#3200m^3高炉鼓风脱湿装置

莱钢3^#3 200 m^3高炉采用脱湿鼓风,风机进口采用自洁式空气过滤器与脱湿器直连相连的组合布置方式,降低了整个系统的阻损,脱湿工艺流程由气路系统、冷水系统、冷却水系统等部分组成。使用该装置后,降低焦比0.8 kg/t,每年多喷煤2万多t,且降低了风机耗电量,年净利润约4 800万元。     

制氧机配套自洁式过滤器的改进

简述了为钢铁企业配套空分的空分自洁式过滤器的工作原理,分析了目前存在的问题,并进行了相应的改进.     

沈鼓DH63空压机轴振问题的解决

介绍了沈鼓DH63空压机的结构和历次大修情况,对上半年出现的一二级轴振异常上升的现象进行总结分析,通过对自洁式过滤器内部进行彻底防腐解决了问题,并提出几点建议。     

浅析延长进口空压机空气过滤器芯使用寿命的方法

动力压风系统进口ZH10000离心式空压机空气过滤器芯存在使用寿命过短的情况，根据负压差报警的工作原理，从进气面积、气流速度及气压差等影响空气过滤器芯寿命的原因进行分析，并提出解决方法。     

初效过滤器在燃机进气系统上的应用

沙钢M-251S型低热值煤气燃汽轮机进气系统空气过滤器二级滤筒堵塞过快、过滤段压差增高过快,且现场粉尘太多湿度大影响燃机负荷.在空气过滤器一级过滤外应用初效过滤器,使二级三级滤筒滤毯延长更换周期降低生产成本,提高机组经济效益.     

Iatrogenic air embolism

The incidence of iatrogenic air embolism can only be estimated since many accidents are not recognized. Clinical manifestations, essentially neurological or cardiovascular disorders vary greatly. Air embolism may occur during coronary or cerebral arteriography, cardiopulmonary bypass, venous catheterism, various types of surgery or blood transfusion among other situations. Once air has entered the arterial circulation, the bubble of gas follows the blood flow until it is blocked by a smaller calibre vessel. The progressive diffusion of the air reduces the size of the embolus which then migrates on to smaller and smaller vessels. Subsequent pathological manifestations of air embolism result from mechanical obstruction leading to ischemia and inflammatory reactions to air acting as a foreign body. The sudden onset signs of neurological impairment with or without a cardiopulmonary component in patients in a high-risk situation leads to clinical diagnosis. Treatment must be started immediately although brain CT scan or echocardiography may help confirm the diagnosis. The source of the air must be immediately identified and removed and the vital functions controlled. Mechanical or facial mask ventilation with pure oxygen is indicated. Hyperbaric oxygen therapy should be instituted. Morbidity and mortality after iatrogenic air embolism is high but major improvements have been achieved with oxygen therapy. Neurological sequellae have been estimated to reach 19 to 50% of the patients. A personal controlled prospective study revealed 14% mortality after hyperbaric oxygen therapy given within 12 hours of the accident.     

It's in the air

The Powder Metal industries could not operate without a steady supply of gaseous nitrogen. But where does it come from? In this first of a series of three articles, Paul Stratton, Global Technical Manager of the Controlled Atmospheres Technology (CAT) group at BOC explains how industrial gases companies generate and supply the gases that keep your industry's processes going…     

Traumatic paramediastinal air cysts

A case of double paramediastinal air cyst is described. The diagnosis is easy if the identity is known. Spontaneous regression was always the outcome in the cases published so far. No treatment is necessary. Radiologic examination should include only films of the chest and baryum swallow. The lesion must be recognised in order to avoid unnecessary diagnostic and therapeutic measures.     

采暖系统中空气的危害及排除

如果采暖系统中存在大量的空气,热力设备和采暖系统的管道及附除就会受到腐蚀,同时也影响热水采暖系统的循环至致使散热器不能正常散热。及时及将系统内的空气排掉,会延长系统的使用寿命,并且可以减少燃料的消耗量,提高系统运行的经济性。