PortableAir(翻译).doc

Portable Air-Compressor Tester便携式空气压缩机测试仪Within the operations and maintenance activities of the natural gas industry and many other industries the air compressor is often the key component of the operation. Without properly maintained and calibrated compressors, cost and productivity are at risk. However, compressor testing at the job site, away from a maintenance center, has been impossible in most situations. Recognizing the need, KeySpan Energy sponsored Gas Technology Institute (GTI) in the development of a portable air-compressor tester.在天然气工业和很多其他工业中的运行操作和维护工作中，空气压缩机是不可缺少的关键设备。没有适当的维护和校准的压缩机，成本和生产效率就存在风险。尽管这样，在大多数情况下，在工作地点的压缩机测试都是远离维护中心。考虑到需要，KeySpan Energy资助GTI进行便携式空气压缩机测试仪的开发。The portable air-compressor tester allows for rapid performance evaluations in the field.ObjectiveThe KeySpan/GTI objective is to design, fabricate, and field test a low-cost, easily portable air-compressor tester for utility and other applications. By allowing for sophisticated, but routine, testing on site, operations will be more efficient and less costly. On-site testing helps to ensure that air-powered (pneumatic) tools operate safely, reliably, and at their optimal efficiencies. Testing data could be used to make decisions on the replacement or repair of hoses, connections, compressors, or engine controls. 目的KeySpan和GTI的共同目的是为公用行业和其它应用，设计、建造和现场测试一个低成本、易于携带的空气压缩机测试仪。仪器必须满足在站点一般和特殊的需要，操作运行应该高效和廉价。站点测试帮助确认气动（空气的）工具操作的安全性、可靠性和最佳效率。测试数据被用于决定更换或修理软管、连接件、压缩机或引擎控制等。BackgroundInefficient or improperly maintained compressors and leaking hoses can lower the performance of pneumatic tools used in the field. While technology has already been developed through GTI and others to measure the effectiveness of the tools, researchers recognized the need for a system to test the air-delivery systems in the field to measure a compressors flow rate and pressure. 背景效果不好的或不合适的维护压缩机和有泄漏的软管都降低在现场使用的气动工具的作用。随着技术的发展，通过GTI和其它单位评估工具的效率，研究者认为需要一套测试现场空气传输系统的系统，以测量压缩机的流速和压力。ApproachGTI researchers designed a tester to measure the pressure and airflow output of air compressors in the field at the connection to the pneumatic tool. The portable, hardshell-suitcase-enclosed tester has been evaluated for its record-keeping abilities, accuracy, precision, reliability, ease of use, maintenance, and cost. A fully instrumented prototype was developed in 2000-01, and laboratory tested on a compressor with a conventional electronic mass flow meter and high-precision pressure gauge attached to ensure that the tester accurately measures the flow and pressure reaching the tool. The product has since been modified for full field use. The rugged, portable air-compressor tester includes all the equipment necessary for accurate compressor evaluations in the field.Features of the portable air-compressor tester include: Low cost (one-third the cost of standard electronic mass flow meters) The incorporation of all needed components in a durable, easily transportable, inexpensive kit Easy-to-read visual measurement gauges for reading pertinent performance parameters Muffler and valve arrangement for flow regulation and noise limitation Simple slide-chart calculation method A method for record taking and maintaining test results Operation without the need for batteries.With the tester, utility crews simply disconnect the air hose from the pneumatic tool, and connect the tester in its place at the upstream side of the kit. A muffler and valve arrangement is attached to the downstream side of the tester. The valve to the tester is closed, the air compressor is turned on, and the valve is opened until the pressure gauge reaches the desired value. In less than a minute, operators receive a reading of pressure and can calculate mass airflow to within about five percent accuracy. 已实现的GTI研究者设计了一个测量和气动工具现场空气压缩机出口的压力和气流。便携、硬壳小提箱关闭的测试仪已经被评估，记录协调能力、准确度、精确度、可靠性、易于使用、维护和价值。一个完全的器具模型在2000年1月已经开发，对一台带有普通电子体积流量的计量表和高精度的压力计用以保证测试仪能够测量到达工具的流量和压力。这个针对现场使用的产品已经改进。便携式空气压缩机测试仪的特点有：l 低成本（标准电子体积流量计量表的1/3）l 在一个耐用的、易于运输、廉价的工具包有所有需要的集成l 读取有关作用参数的易读测量仪l 有流量调节和控制噪音的阀门和消声器l 简单的幻灯片图表计算方式l 记录获得和保存测试结果的方式l 运行不需要电池组利用测试仪，设备操作人员只需简单的断开与气动工具连接的空气管，连接测试仪在工具包的上游位置。消声器和阀门安装在测试仪下游位置。开始连接测试仪的阀门是关闭的，空气压缩机开始运行。直到压力达到阀门开启的数值，阀门就开启了。在不到一分钟时间里，操作人员收到压力读数，能够计算误差约5%的体积流量。BenefitsThe portable air-compressor tester allows construction and maintenance crews to easily identify compressor problems and optimize operations. Through implementation of the tester, companies can: Reduce operations and maintenance costs Enhance safety Improve efficiencies Minimize compressor noise and exhaust Minimize public inconvenience Avoid repair costs Prioritize maintenance needs for tools, compressors, or components优势l 便携式空气压缩机测试仪允许使得建造和维护人员很容易确认压缩机的问题和优化操作。通过测试，压缩机能：l 降低运行和维护成本l 强化安全性能l 提高效率l 把压缩机噪音和排放减少最小l 最大可能减少公共干扰l 减少维修成本l 减少工具、压缩机和部件的维护StatusA po