共查询到20条相似文献,搜索用时 140 毫秒
1.
文章介绍了过去产酸计量所采用的方法,以及该方法在产酸计量过程中带来的许多问题。通过对40kt/a硫酸装置的产酸计量改造,现已解决过去存在的问题,达到了科学、安全、准确地计量。文章注重介绍电磁流量计的工作原理及安装、计量槽改造、仪表调试、参数设定等工作。电磁流量计自2006年1月投入使用以来,因为效果显著已成功应用在硫酸生产计量中。 相似文献
2.
1计量方案的提出目前大多数水泥企业牛产环节的物料计量主要用于计量计算和配料控制,采用了各种各样的计量器具,其共同特点是使用荷重传感器元件,以此为核心构成计量控制系统,采用的是检斤计量方式。这类系统如电振机加恒速皮带秤、电子调速皮带秤等等,从理论设计来看没有 相似文献
3.
计量是保证产品质量提高的技术基础,是企业提高经济效益的有效手段。本文从建立和完善计量管理体系、加强产品计量保证和计量基础管理、更新计量管理观念等方面,阐述了计量对企业科研、生产、经营的监督、保障作用。 相似文献
4.
5.
水泥生产企业属于高耗能行业,能源消费成本占比较大,能源计量管理尤为重要;本文以我公司水泥熟料生产线为例,介绍了能源计量网络图的绘制过程。能源计量网络图便于理清能源流动方向和各级计量器具的之间的关系,更有利于建立科学、高效的能源计量管理体系。 相似文献
6.
针对企业在取得ISO10012计量检测体系认证以后,计量器具(测量设备)检定与校准的区别、比较提出采用校准方式,降低成本、简化手续,提高计量管理水平。 相似文献
7.
8.
在市场经济的今天,随着天然气工业的发展和人们对经济效益的重视,作为供、用气双方进行贸易结算依据的计量问题日益突出起来。“计量就是计钱”的观念已经深入人心。如何公正、准确的对天然气进行计量,已经成为燃气行业必须面对的一个重要问题,也成为我们燃气企业生产经营管理中一项重要的日常工作。 相似文献
9.
1引言大中型企业都有数十台动态计算秤,存在一个计量群体,在市场经济下,企业内部的控制和管理对计量专业提出了越来越严格的要求,例如,我公司全年生产水泥200万t,允许累计库存盈亏±3000t,也就是允许计量群综合误差优于015%,而生产流水线中使用的... 相似文献
10.
石油计量技术对石油工业的发展有着重要的推动作用,其发展也越来越引起人们的重视。本文主要介绍两个方面的内容,首先介绍了影响石油计量交接方式的因素和石油计量交接方式的发展情况;其次介绍了影响石油计量技术的因素和其发展情况,并且探讨了未来它们的发展趋势。 相似文献
11.
T F CHONG 《Coloration Technology》1988,18(1):47-55
In spite of the fact that the basic method of colour measurement was established more than harf a centuy ago, it is only during the last fifteen years that the application of colour measurement is particularly substantial and significant because of the advancement of computer technology, better understanding of colour science, and the revolution in equipment design. This has brought colour science from a scientific exercise in the research laboratory to a widely used industrial and commercial tool. The present state of the art of colour measurement is such that an analogy can be made to the measurement of linear dimensions at one time by the relatively crude yardstick, but now replaced by the precisely scaled micrometer. Thus with colour measurement now, colour can be measured with a precision unmatched by the human eye. To-day, both the colorant industry and colour dependent commerce (industries such as dyes, textiles, pigments, cosmetics, coatings, paper, plastics etc.) are taking advantage of such techniques since the economic advantages are quite substantial. Furthermore, the techniques involved are, to a large extent, no longer trade secrets. The literature abounds with practical theories and concepts which can be applied directly in the workplace by competent colourists. It is expected that more applications of colour measurement for similar general usage are being developed. This paper is designed to introduce the fundamental concept of colour science and various types of colour measuring instruments and their selection. The value of these colour measuring instruments for practical use in industry and commerce is discussed. Finally, the sources of the technical information and assistance are given. 相似文献
12.
ABSTRACT Occupational hygiene has always been very influential in aerosol science—and vice versa. This paper gives an historical overview of this interaction, in particular how aerosol measurement instrumentation has evolved for the measurement of workers' exposures to aerosols in the occupational setting. It shows how health-related criteria for aerosol measurement have shifted from ones based on airborne particulate mass to ones based on particle count concentration, and then back again, depending on the aerosol science knowledge that was available at the time. It also draws the distinction between instrumentation based on time weighted-average sampling and direct-reading measurement, and the factors that govern how the choice of type of measuring instrument was made in the past, the way it is made now, and the way it might be made in the future. 相似文献
13.
14.
15.
16.
17.
高等院校和科研机构等在实施科技产业化或技术转化过程中,工程公司的桥梁作用不可或缺,应得到从事科技产业化或技术转化管理部门的认同和重视。 相似文献
18.
目前,科技期刊正处于国家深化文化体制改革推动社会主义文化大发展大繁荣的大环境下,充满着挑战和机遇。论述了综合性科技期刊的现状,并提出了发展思路。指出综合性科技期刊要结合自身情况,抓住机遇,不断提高科技期刊质量,健全科技期刊市场意识,实施科技期刊创新建设,推进科技期刊体制改革,实现科技期刊社会效益和经济效益双丰收,推动科技期刊全面协调可持续发展。 相似文献
19.
20.
我国是一个缺油、少气、多煤炭的国家,有效利用有限资源,特别是合理利用煤炭资源,对保障经济的可持续发展具有积极的意义。随着科技进步的加速,现代煤化工技术得到快速发展,通过煤气化过程将固体的煤炭转化为气态的燃料或化工原料,是提高资源有效利用率的重要措施。介绍了我国主要的煤气化技术发展状况,重点分析了当今壳牌气流床煤气化技术的工艺特点。 相似文献