简介:摘要蜀河水电站在建成下闸蓄水后,都会存在不同程度的水面漂浮物及生活垃圾聚积在大坝前和河道中。漂浮物大量聚积与水电站坝前水域内,不仅会影响电站设备运行,还会污染水体的水质。漂浮物在电站机组开机后会聚积至坝前水域,机组停机后又会分散。打捞造成很大难度,船只打捞人员的安全风险和劳动强度增大。为了解决此类问题,电站成立攻坚组,研发机组进水口远方浮渣清理装置,并成功应用到日常浮渣清理工作中。有效的提升了浮渣打捞工作效率,并保障打捞工作人员安全。保护了水电站库区水质环境的同时,提升电站机组的安全稳定运行。对存在类似问题的水电站具有一定的设计及技术改造借鉴意义。
简介:摘要随着科学技术不断发展,不同行业对电量的需求不断上升,为电力企业提供了机会,得到了飞速发展,相应的电力设备和技术也不断更新。然而,在发展的同时,对环境也造成了不同程度的影响,使大气污染严重,在电厂中,发电机运行的主要原料是煤炭,煤炭在锅炉中燃烧会产生很多气体,其中包括CO2、SO2以及其他一些氮氧化物,这些烟气对人们的生命财产安全和生活环境产生了很大的影响和危害。所以,为了提高周围环境质量,保障人们的身体素质,电厂锅炉在实施时要使用设备装置进行脱销处理,减少烟气对周围环境的污染状况。本文主要分析了电厂烟气偷笑装置在锅炉运行时对其影响作用,并针对相关问题提出了解决对策。
简介: 【摘要】 目的:观察小剂量倍他乐克用于急性心肌梗死并心力衰竭的治疗效果。方法:选取 2014 年 8 月 -2015 年 11 月在笔者所在医院接受治疗的急性心肌梗死并心力衰竭患者 68 例作为研究对象,随机分为观察组和对照组,各 34 例,对照组采用常规治疗措施,观察组在对照组治疗基础上应用小剂量倍他乐克治疗方法,比较两组患者心功能指标、治疗有效率及住院指标。结果:观察组患者左室舒张末期容积( LEDV )、左室收缩末期容积( LESV )显著低于对照组,每搏心输出量( SV )和射血分数( EF )显著高于对照组,治疗有效率为 94.12% ,显著高于对照组的 76.47% ,服药时间、住院时间显著短于对照组,治疗满意度显著高于对照组,比较差异均有统计学意义( P<0.05 )。结论:小剂量倍他乐克对于急性心肌梗死并心力衰竭治疗效果显著,减少住院时间,促进心功能恢复,值得临床推广。 【关键词】 小剂量; 倍他乐克; 急性心肌梗死并心力衰竭 Objective: To observe the therapeutic effect of low dose Betaloc on acute myocardial infarction complicated with heart failure. Methods: 68 patients with acute myocardial infarction and heart failure who were treated in our hospital from August 2014 to November 2015 were selected as the research objects. They were randomly divided into observation group and control group, 34 cases in each group. The control group was treated with routine treatment measures, while the observation group was treated with low dose Betaloc on the basis of the control group. The cardiac function indexes and therapeutic effectiveness of the two groups were compared. Rate and hospitalization index. Result: The left ventricular end-diastolic volume (LED V) and left ventricular end-systolic volume (LESV) in the observation group were significantly lower than those in the control group. The stroke cardiac output (SV) and ejection fraction (EF) were significantly higher than those in the control group. The effective rate of treatment was 94.12%, significantly higher than that of the control group (76.47%), the time of taking medicine and hospitalization were significantly shorter than those in the control group, and the satisfaction of treatment was significantly higher than that in the control group The difference was statistically significant (P < 0.05). CONCLUSION: Low dose Betaloc is effective in treating acute myocardial infarction complicated with heart failure, reducing hospital stay and promoting cardiac function recovery, which is worthy of clinical promotion.