盐业钻井大队职工培训初探

随着知识经济的到来,职工培训在组织发展中扮演着越来越重要的角色。本文针对盐业钻井大队职工培训的现状,进行了问题分析,提出了建立学习型组织、完善的培训体系和畅通的运行机制的建议,最后强调了制定培训计划应从加强培训需求性的调查研究、加强组织培训的协调性等五个方面把握。     

《固定式压力容器安全技术监察规程》中压力容器类别的划分

TSG R0004—2009《固定式压力容器安全技术监察规程》中压力容器类别划分按设计压力、容积和介质危害性三个因素确定,不再考虑容器在生产过程中的作用、材料强度等级、结构形式等因素。根据危险程度的不同,仍然划分为Ⅰ类、Ⅱ类、Ⅲ类,在不同介质分组坐标图上查取相应的类别,简单易行、科学合理、准确唯一。并将介质分为两组,一组为危险性介质;另一组为非危险性介质。按介质组别分类图确定压力容器类别,将分类图分区域可以迅速确定压力容器类别根据强化危险性原则,突出本质安全思想,笔者认为对第二组介质的类别划分有些部分不太合理,根据目前的划分方法,某些压力容器的容积相差1 L或压力相差0.01 MPa,可压力容器类别却从Ⅲ类压力容器变成了Ⅰ类压力容器,建议将这范围内的类别划分从Ⅰ类压力容器改为Ⅱ类压力容器。     

Experimental study on high viscosity fluid micro-droplet jetting system

Fluid dispensing is a method by which fluid materials(such as epoxy,adhesive,and encapsulant) are delivered in a controlled manner in electronics packaging.Fluid jetting,derived from inkjet technology,is a noncontact,data-driven fluid dispensing technology.But ideal fluid materials for packaging are usually high viscous,which is difficult to realize by traditional inkjet technology.In this paper,a mechanical micro-droplet jetting system for high viscosity fluid was proposed.It consists of dispensing valve,m...     

Mixing characterisation of full-scale membrane bioreactors: CFD modelling with experimental validation

Membrane Bioreactors (MBRs) have been successfully used in aerobic biological wastewater treatment to solve the perennial problem of effective solids-liquid separation. The optimisation of MBRs requires knowledge of the membrane fouling, biokinetics and mixing. However, research has mainly concentrated on the fouling and biokinetics (Ng and Kim, 2007). Current methods of design for a desired flow regime within MBRs are largely based on assumptions (e.g. complete mixing of tanks) and empirical techniques (e.g. specific mixing energy). However, it is difficult to predict how sludge rheology and vessel design in full-scale installations affects hydrodynamics, hence overall performance. Computational Fluid Dynamics (CFD) provides a method for prediction of how vessel features and mixing energy usage affect the hydrodynamics. In this study, a CFD model was developed which accounts for aeration, sludge rheology and geometry (i.e. bioreactor and membrane module). This MBR CFD model was then applied to two full-scale MBRs and was successfully validated against experimental results. The effect of sludge settling and rheology was found to have a minimal impact on the bulk mixing (i.e. the residence time distribution).     

同源高速宏观地质条件对勘察的指导意义

对同源高速公路地貌景观进行了分析,并针对不同地质条件下的工程地质特征进行了工作量布置前的探讨,综合研究后进行了勘察工作,合理指导了勘察与工程建设,对同类工程具有重要的指导意义。     

双机组风力机尾流互扰及阵列的数值模拟

为合理布置风力机,尽量减小风力机尾流的影响,提高风电场效率,采用Fluent 6.3软件,结合尾流理论分别对单机、2台串列、并列及错列布置的风力机进行数值模拟。通过比较单机风力机下风向流场分布和尾流模型计算结果,验证数值模拟合理性;比较单机及各种布置方式的输出功率、流场分布,对风力机间相互影响及互扰损失进行分析。结果表明:串列布置时,下风向叶轮对上风向机组发散状尾流有收敛作用,下风向机组受上游尾流影响较大,功率明显降低;并列及错列时被干扰机组受参考机组尾流挤压,但功率受影响较小。     

电厂空冷机组化学洗硅新工艺概述与应用

高效洗硅成膜剂是一种环保的专利药剂,经过数次小型试验,证明其在特定条件下,具有快速溶硅,并且可在金属表面形成一种致密长效的亮蓝色保护膜。根据某空冷机组电厂吹管及整套启动期间采用此产品进行洗硅运行中取得的数据,进行一些相应的讨论和比对。     

大惯量高压变频调速增安型三相异步电动机设计

通过对调速方式的对比,结合具体事例,介绍了设计大惯量高压变频调速增安型三相异步电动机时所考虑的主要问题、应对措施和存在的风险,并提出了合理化的建议。     

延长区块陆相页岩水基钻井液性能优化评价

延长陆相页岩气资源量丰富,勘探开发处于早期研究阶段。储层地质情况复杂,水平井钻井时常发生井塌等事故,为保持井壁稳定常使用油基钻井液,而油基钻井液又面临环境保护和高成本等压力,为此,研制出页岩水基钻井液体系PSW-1。PSW-1钻井液用0.2%聚合物BOP、2.0%提切剂TQ-1和2.0%的润滑剂ORH-1进行处理,以改善其携屑能力和润滑性。PSW-1的动切力为10 Pa、静切力为4.5 Pa/10 Pa、润滑系数为0.07。经过在4口页岩气水平井的现场应用,PSW-1钻井液能有效地悬浮、携带岩屑,大幅降低钻进时的摩阻;失水量为2.0～2.8 mL,井径扩大率仅为6.34%,有效保持井壁稳定和井下安全。为低成本、高效开发延长陆相页岩气水平井提供技术支持。