【标题】Centrifugal vs. Positive Displacement Pumps & What Are Mag Drive Pumps?
【参考中译】离心机与正位移泵以及磁力驱动泵是什么？
【类型】 期刊
【作者】 HYDRAULIC INSTITUTE
【摘要】 Centrifugal pumps and positive displacement pumps have differing hydraulic designs, which results in unique application considerations that affect which type is best for an application. Centrifugal pumps utilize a rotating impeller to impart kinetic energy to the applicable fluid, and the fluid exits the impeller radially. The performance of a centrifugal pump is such that the flow rate is variable as a function of system differential pressure or total head. This means it can achieve variable flow while operating at a constant rotational speed (Image 1). Additionally, centrifugal pumps shear the liquid they are pumping; therefore, their performance is significantly affected by the liquid viscosity.
【参考中译】 离心机和正位移泵具有不同的液压设计，这导致了独特的应用考虑因素，从而影响哪种类型最适合应用。离心机泵利用旋转的推进器将动能传递给适用的流体，并且流体沿放射状离开推进器。离心机的性能是流量根据系统压差或总水压的函数而变化的。这意味着它可以在以恒定旋转速度运行的同时实现可变流量（图1）。此外，离心机会剪切它们泵送的液体;因此，它们的性能受到液体粘性的显着影响。
【来源】 Pumps & Systems 2024, vol.32, no.9
【入库时间】 2025/1/24
【标题】Dates and New Location for the 2025 Hydrogen Valve Summit and Valve Forum
【参考中译】2025年氢阀门峰会和阀门论坛的日期和新地点
【作者】 anonymous
【摘要】 The VMA is excited to announce the dates for the 2025 Hydrogen Valve Summit and Valve Forum Conference and Exhibits. Both events will take place in Orlando, Florida, at the DoubleTree by Hilton Orlando SeaWorld, and both events are open to anyone in the industry -with reduced registration rates offered for member companies. Following its resounding success in 2024, the Hydrogen Valve Summit will take place on April 8, 2025. Attendees can look forward to insightful presentations and discussions on current trends, governmental and academic perspectives, end-user applications, testing and qualifications, materials, and standards. The event concludes with a reception, will also serves as the opening activity for the Valve Forum, allowing attendees of both events the ability to meet with exhibitors.
【参考中译】 VMA很高兴宣布2025年氢阀峰会和阀门论坛会议和展览的日期。这两项活动都将在佛罗里达州奥兰多希尔顿奥兰多海洋世界DoubleTree by Hilton Orlando SeaWorld举行，这两项活动都向业内任何人开放，会员公司的注册费也有所降低。继2024年取得巨大成功后，氢阀峰会将于2025年4月8日举行。与会者可以期待就当前趋势、政府和学术观点、最终用户应用、测试和资格、材料和标准进行富有洞察力的演讲和讨论。该活动以招待会结束，也将作为Valve论坛的开幕活动，使两场活动的与会者能够与参展商会面。
【来源】 Valve Magazine 2024, vol.36, no.3
【标题】Industrial fans for moving air, gas
【参考中译】用于输送空气、天然气的工业风扇
【摘要】 Industrial fans are high-performance air-moving devices designed to move large volumes of air or other gases efficiently and effectively. They are typically larger, more powerful and more durable than the standard units found in homes and offices. These fans are engineered to handle the demands of industrial and commercial environments, including exposure to harsh conditions, high temperatures and heavy-duty use.
【参考中译】 工业风扇是高性能空气移动设备，旨在高效且有效地移动大量空气或其他气体。它们通常比家庭和办公室中的标准单元更大、更强大、更耐用。这些风扇的设计旨在满足工业和商业环境的需求，包括暴露在恶劣条件、高温和重型使用中。
【来源】 Hardware Auto & Machinery 2024, vol.8, no.10
【标题】Fertilizer Plant Uses Fogging to Boost Summer Air Compressor Output
【参考中译】化肥厂利用雾化提高夏季空压机产量
【作者】 DREW ROBB
【摘要】 This technology increases energy efficiency and production in dry climates. Evaporative cooling of the inlet air flow to gas turbines has been used successfully for several decades to boost output, especially in the warm summer months. However, this technique has not been widely used to cool the inlet air flow to air compressors. In a hot and dry climate, evaporatively cooling the inlet air flow can increase the mass flow through a compressor by 6% or more. In a humid environment such as the United States Gulf Coast, the air mass flow can be increased by 3%. Cooling the air also reduces the power consumed by the compressor.
【参考中译】 这项技术提高了干燥气候下的能源效率和产量。几十年来，燃气涡轮机入口气流的蒸发冷却已被成功用于提高产量，尤其是在温暖的夏季月份。然而，该技术尚未广泛用于冷却空气压缩机的入口气流。在炎热干燥的气候下，蒸发冷却入口气流可以将通过压缩机的质量流量增加6%或更多。在美国墨西哥湾沿岸等潮湿环境中，空气质量流量可以增加3%。冷却空气还可以减少压缩机消耗的功率。
【标题】Morrisons backs 'UK first' trials of cooler stores
【参考中译】莫里森支持“英国第一”酷店试验
【摘要】 CARBON REDUCTION: Morrisons will raise freezer temperatures from -18 deg C to -15 deg C in 10 of its stores to test how a wider switch could affect carbon reduction plans. The company said it will become the first supermarket retailer to consider a rethink of the commonly used standard to refrigerate and store food. The trial is intended to see how the retailer might reduce the energy consumption from refrigeration without compromising food safety. The current industry standard of -18 deg C has been in place for nearly a century, despite the many advancements in refrigeration technology, Morrisons added.
【参考中译】 碳减排：莫里森将将其10家商店的冰箱温度从-18摄氏度提高到-15摄氏度，以测试更广泛的转变如何影响碳减排计划。该公司表示，它将成为第一家考虑重新考虑常用食品配料和储存标准的超市零售商。该试验旨在了解零售商如何在不损害食品安全的情况下减少制冷的能源消耗。莫里森补充说，尽管制冷技术取得了很多进步，但目前-18摄氏度的行业标准已经实施了近一个世纪。
【来源】 H&V News 2024, no.Sep.
【标题】Remote Monitoring of Mixer Gearboxes & Motors via Accelerometers
【参考中译】通过加速度计远程监控搅拌机齿轮箱和电机
【作者】 PATRICK DORN
【摘要】 Accelerometers may be a benefit to remote monitoring systems. In the contemporary industrial landscape, the importance of predictive maintenance cannot be overstated. Companies are increasingly turning to advanced technologies to monitor the health of their machinery and prevent costly downtimes. Among these technologies, remote monitoring of mixer gearboxes and motors via accelerometers stands out as a particularly effective strategy. This article delves into the specifics of how accelerometer-based remote monitoring is transforming maintenance practices in industrial settings.
【参考中译】 加速度计可能对远程监控系统有利。在当代工业格局中，预测性维护的重要性怎么强调都不为过。公司越来越多地转向先进技术来监控其机器的健康状况并防止代价高昂的停工期。在这些技术中，通过加速度计远程监控搅拌机变速箱和电机是一种特别有效的策略。本文详细介绍了基于加速度计的远程监控如何改变工业环境中的维护实践。