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工业 1.0 到 4.0 如何影响颗粒物排放和监测

Published On: 2019年9月5日

在过去的40年中,ENVEA一直处于环境监测和过程控制的前沿。并且随着工业物联网(工业4.0)的出现,ENVEA利用这个新工业时代的潜力再次提供创新解决方案。

在9月11日至12日在伯明翰NEC举行的清洁空气技术博览会上,ENVEA将展示其一系列颗粒物排放仪器及其在数据采集,存储和分析方面的先进技术,这些技术将把工业颗粒和流量监测与新的智能技术相结合。

在这一系列的文章中,我们将探讨工业化与颗粒物之间的关系,以及四个工业时代中颗粒物减排、监测和监管的兴起。

在第一篇文章中,我们将研究与颗粒物相关的工业1.0以及这个时代的进步如何影响现代发电和制造。

工业1.0

工业1.0(1760-1840) 被认为是第一次工业革命,制造业向蒸汽和水动力机械过渡,改变了农业、纺织和采矿等行业。蒸汽机设计中的效率使其可以应用到制造过程(例如铁生产)、铁路和航运的发展见证了贸易的扩张和制造产量的增长。在此期间,燃煤变得普遍。

工业1.0期间的颗粒物

尽管燃烧过程还不能像今天一样用作发电来源,但工业中煤炭使用量的增加对污染水平产生了重大影响。人们对细颗粒物的存在及其相关的健康影响知之甚少,控制排放的法规也很少。据估计,到18世纪后期,伦敦的环境PM水平已超过了300mg/m3。在此期间,污染控制的技术和法规都很有限(在英国),直到1840年代后期才颁布第一个工业排放法规。

工业 1.0 期间的技术进步

虽然在第一次工业革命期间还没有减少排放的过程,但科学的进步正在建立将成为未来技术的东西。

1824年电晕放电发现后的早期静电除尘器概念

1824年M Hohlfeld发明了一种用电晕放电从气溶胶中去除颗粒的方法,这导致Frederick Gardner Cottrell于1907年发明了静电除尘器(ESP),这是一种如今广泛用于工业过程中粉尘和气体减排的方法。

1831年Michael Faraday发明了第一台发电机。尽管其基本设计如此,这项最初的发明为我们今天所知的发电发展奠定了基础。电磁感应的发现为工业领域提供了许多创新,包括在21世纪才开始广泛应用于实际应用的无线能量传输。

2019年颗粒物排放控制

2019年,通过燃烧发电的方法呈指数级发展,但工业1.0期间开发的通过燃烧和污染物为发动机(现在的涡轮机)提供动力的方法基本上保持不变。虽然目前通过非化石燃料(如EfW和生物质)发电量大幅增长,但据估计,目前全球仍有2400多座燃煤发电站(30MW及以上)在运行。

现在,燃烧发电是排放管制最严格的行业,它采用多种减排方法来减少气体和颗粒物的排放,包括烟气脱硫和静电除尘器。由于这些减排系统的有效性,发电站通常会排放任何工业过程中非常低水平的颗粒。虽然电晕放电在效率和规模上都有了显著的进步,但电晕放电的基本原理仍然是电除尘器从气流中去除细颗粒的技术和有效性的核心,这也是电除尘器自诞生以来100多年来仍被广泛使用的原因。

颗粒物监测中的工业 4.0

由于大多数现代电站排放的颗粒物(PM)水平非常低,因此需要连续的颗粒物监测仪在非常低的水平下进行测量,并具有较高的精度和自诊断工具,以验证PM测量结果。

ProScatter 颗粒物CEMS安装

在PCME ProScatterTM范围内,ENVEA提供了一系列光散射传感器 (前散射后散射) 用于全球发电过程中的测量,特别是测量PM排放后的测量,通常小于1mg/m3 的ProScatterTM传感器是网络设备,通过多个发射点的读数提供单点数字数据记录。该数据可用于过程控制,确保向操作员发送任何过量排放的警报以避免任何过程问题的不合规和调查。

传感器包含自动自诊断检查,可提供粉尘负荷增加和颗粒物类型变化的早期预警并能够利用这些数据管理减排系统和仪表的预防性维护。PCME ProScatterTM设备符合TUV和MCERTS QAL1,经认证范围低至0-7.5mg/m3,提供QAL2和QAL3工艺的要求,并符合美国EPA PS-11。

随着全球监管机构要求增加排放数据的透明性,PCME ProScatterTM设备可以配置为能够立即向环境经理和监管机构直接报告在线测量。

TÜV Approved Back Scatter Particulate CEM  QAL1 Forward Scatter Particulate CEM
ProScatterTM和后散射颗粒物CEMS

由于烟囱条件的变化影响可报告的PM测量,ENVEA还提供了一系列流量(速度)传感器。STACKFLOW系列使用皮托管和超声波技术提供在线流量或速度读数。

这些仪器可以与PCME ProScatterTM范围和两个设备的读数联网,以提供标准化的连续PM测量。ENVEA系统通常安装有内置冗余,利用数字数据分析、自动自诊断和通信方法(等同于工业4.0)为PM测量提供完整的环境和过程控制解决方案。

要了解有关 ENVEA 系列仪器和 IIoT 的进一步发展的更多信息,请访问我们于 9 11 12 在伯明翰 NEC举行的清洁空气技术博览会的 138 号展台

点击以下链接阅读全文:

工业 1.0 到 4.0 如何影响颗粒物排放和监测_第 1 部分-工业 1.0

工业 1.0 到 4.0 如何影响颗粒物排放和监测_第 2 部分-工业 2.0

工业 1.0 到 4.0 如何影响微粒排放和监测第 3 部分工业 3.0

工业 1.0 到 4.0 如何影响微粒排放和监测第 4 部分工业 4.0

工业 1.0 到 4.0 如何影响颗粒物排放和监测

Published On: 2019年9月5日

ENVEA have been at the forefront of environmental monitoring and process control over four decades and with the emergence of the industrial internet of things (Industry 4.0) ENVEA are yet again providing innovative solutions which harness the potential of this new industrial era.

At Clean Air Technology Expo taking place on 11-12 September at the NEC, Birmingham, ENVEA will be demonstrating its range of Particulate Emissions Instruments alongside its advancements in data capture, storage and analytics that will combine the world of industrial particulate and flow monitoring with the latest in smart technology.

In this series of articles, we will be exploring the relationship between industrialisation and particulates alongside the emergence of particulate abatement, monitoring and regulation through each of the four industrial eras.

In this first article we will be examining Industry 1.0 in relation to particulates and how advancements in this era influence modern day power generation and manufacturing.

Industry 1.0

Industry 1.0 (1760-1840) is considered to be the first industrial revolution with the transition to steam and water powered machinery in manufacturing, transforming industries such as agriculture, textiles and mining. The efficiencies made within the steam engine design enabled its use in manufacturing processes (such as Iron production) and developments in rail and shipping saw the expansion
of trade and increased manufacturing output. During this period coal burning became widespread.

Particulates during Industry 1.0

Although combustion processes were not yet able to be used as a source for power generation as today, the increased use of coal in industry had a significant impact on pollution levels. There was little understanding of the existence of fine particles and the associated health implications and little regulations controlling emissions. It has been estimated that by the late 18th century ambient PM levels were in excess of 300mg/m3 in London. During this period there was limited technology for pollution control and regulations (in the UK). The first regulation of emissions from industry would not be enacted until the late 1840’S.

Technological advancements during Industry 1.0

Whilst processes for abating emissions were not in place during the first industrial revolution, advances in science were establishing what would become the technology of the future.

Early Electrostatic Precipitator
concept following Corona discharge
discovery in 1824

The discovery of corona discharge as a method to remove particles from an aerosol was made in 1824 by M Hohlfeld. This lead to the invention of the Electrostatic Precipitator (ESP) by Frederick Gardner Cottrell in 1907, a method widely used today in dust and gas abatement from industrial processes.

The first electrical generator was invented in 1831 by Michael Faraday. Despite its basic design this initial invention set the foundations for the development of electrical power generation as we know it today. The discovery of electromagnetic induction has provided many innovations in Industry including wireless energy transfer which has only begun to be widely used in practical applications during the 21st century.

Particulate Emissions Control in 2019

In 2019 the methods of power generation through combustion have evolved exponentially however the methods developed during Industry 1.0 to power engines (now turbines) through combustion and the pollutants present remain broadly the same. Whilst there is now significant growth in power generation through non fossil fuels, such as EfW and Biomass, there is still estimated to be in excess of 2400 coal fired power stations (30MW and above) currently in operation globally.

Now the most tightly regulated industry for emissions, power generation through combustion employs multiple abatement methods to reduce gas and particulate emissions including flue gas desulphurisation and electrostatic precipitators. Due to the effectiveness of these abatement systems, power stations typically emit the lowest levels of particulate of any industrial process. Whilst significantly more advanced in both efficiency and scale, the basic principles of corona discharge are still central to the technology and the effectiveness of electrostatic precipitators for removing fine particles from a gas stream which is why they are still widely in use over 100 years since their inception.

Industry 4.0 in Particulate Monitoring

Due to the significantly low levels of Particulate Matter (PM) emitted from most modern power stations, continuous particulate monitors are required to measure at extremely low levels with high levels of accuracy and self diagnostic tools to verify the PM measurements.

ProScatter Particulate CEMS Installation

In the PCME ProScatterTM range, ENVEA provide a range of Light Scatter sensors (Forward Scatter and Back Scatter) used globally in power generation processes ideal for measurement after an ESP. Measuring PM emissions, often less then 1mg/m3 ProScatterTM sensors
are networked devices providing single point digital data logging from readings across multiple emission points. This data can be used to control processes ensuring any excessive emissions events are alerted to operators to avoid non-compliance and investigate any process issues.

The sensors include automated self diagnostic checks which provide early warning of both increased dust loadings and changes in particulate type as well as the ability to utilise this data to manage preventive maintenance of both abatement systems and instrumentation. PCME ProScatterTM devices are TUV and MCERTS QAL1 approved with certified measurement ranges as low as 0-7.5mg/m3 providing all the requirements for QAL2 and QAL3 processes as well as being US EPA PS-11 compliant.

With regulators globally requiring increased transparency on emissions data, PCME ProScatterTM devices can be configured to enable direct reporting of online measurement instantaneously to environmental managers and regulators.

TÜV Approved Back Scatter Particulate CEM  QAL1 Forward Scatter Particulate CEM
  ProScatterTMand Backscatter Particulate CEMS

With variations of stack conditions effecting reportable PM measurements, ENVEA also provide a range of flow (velocity) sensors. The STACKFLOW range uses both Pitot and Ultrasonic technology to provide online flow or velocity readings.

These instruments can be networked alongside the PCME ProScatterTM range and readings from both devices calculated to provide normalised continuous PM measurements. Often installed with inbuilt redundancy, ENVEA systems provide a complete environmental and process control solution for measuring PM utilising the digital data analytics, automated self diagnostics and communication methods synonymous with Industry 4.0.

To learn more about the ENVEA range of instruments and further developments towards IIoT, please visit us on Stand 138 at Clean Air Technology Expo taking place on 11-12 September at the NEC, Birmingham.

Click on the links below to read the full article:

How has Industry 1.0 to 4.0 influenced particulate emissions and monitoring_Part 1-Industry 1.0

How has Industry 1.0 to 4.0 influenced particulate emissions and monitoring_Part 2-Industry 2.0

How has Industry 1.0 to 4.0 influenced particuate emissions and monitoring Part 3 Industry 3.0

How has Industry 1.0 to 4.0 influenced particulate emissions and monitoring Part 4 Industry 4.0

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