136188-01 Bently 以太網(wǎng)I/O模塊本特利內(nèi)華達(dá)公司所生產(chǎn)的監(jiān)測保護(hù)系統(tǒng)主要應(yīng)用在大型旋轉(zhuǎn)和往復(fù)式機(jī)械的本體振動等監(jiān)測保護(hù)方面，我們的空壓機(jī)和氧壓機(jī)系
統(tǒng)中都應(yīng)用了BENTLY測振系統(tǒng)，因為超速對透平機(jī)組而言是極其危險的情形之一，所以必須安裝超速保護(hù)系統(tǒng)。本特利公司為此研制
了由渦流傳感器及超速保護(hù)監(jiān)測器組成的電子超速監(jiān)測系統(tǒng)，它是完整的超速保護(hù)系統(tǒng)的一部分。我們的測振系統(tǒng)應(yīng)用有3300和3500
兩種測振，這次重點介紹23500制氧機(jī)采用的3500測振系統(tǒng).
3500監(jiān)測系統(tǒng)是當(dāng)今的機(jī)器檢測系統(tǒng)，此系統(tǒng)能夠通過多種傳感器采集數(shù)據(jù)作為一個系統(tǒng)，提供連續(xù)、在線監(jiān)測功能，適用于機(jī)械
保護(hù)應(yīng)用，它是本特利內(nèi)華達(dá)采用傳統(tǒng)框架形式的系統(tǒng)中功能強(qiáng)靈活的系統(tǒng)，具有其他系統(tǒng)所不具備的多種性能和先進(jìn)功能。

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3500監(jiān)測系統(tǒng)的設(shè)計目的如下:
●每個通道的價格比以往的監(jiān)測系統(tǒng)更低，一表多用（軸振、偏心、軸位移、加速度可以通用），減少了工廠運作成本。
體積小、重量輕，是“機(jī)電一體化”特有的產(chǎn)品
一臺收錄機(jī)大小的PLC具有相當(dāng)于1.8m高的繼電器控制柜的功能，一般節(jié)電50％以上。
由于PLC是工業(yè)控制的專用計算機(jī)，其結(jié)構(gòu)緊密、堅固、體積小巧，并由于具備很強(qiáng)的抗干擾能力，使之易于裝入機(jī)械設(shè)備內(nèi)部，因而成為實現(xiàn)“機(jī)電一體化”較理想的控制設(shè)備。
由于PLC具備了以上特點，它把微計算機(jī)技術(shù)與繼電器控制技術(shù)很好地融合在一起，zui新發(fā)展的PLC產(chǎn)品，還把直接數(shù)字控制（DDC）技術(shù)加進(jìn)去，并具有監(jiān)控計算機(jī)聯(lián)網(wǎng)的功能。因而它的應(yīng)用幾乎覆蓋了所有的工業(yè)企業(yè)，既能改造傳統(tǒng)機(jī)械產(chǎn)品成為機(jī)電一體化的新一代產(chǎn)品，又適用于生產(chǎn)過程控制，實現(xiàn)工業(yè)生產(chǎn)的優(yōu)質(zhì)、高產(chǎn)、節(jié)能與降低成本。
總之，PLC技術(shù)代表了當(dāng)前電氣控制的世界先進(jìn)水平，PLC與數(shù)控技術(shù)和工業(yè)機(jī)器人已成為機(jī)械工業(yè)自動化的三大支柱。

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136188-01 Bently Ethernet I/O module Bentley Nevada Company produced monitoring and protection system is mainly used in large rotating and reciprocating machinery body vibration monitoring and protection, our air compressor and oxygen compressor system
The BENTLY vibration measurement system is applied in all systems, because overspeed is one of the most dangerous situations for turbine units, so it is necessary to install overspeed protection system. Bentley developed it for this purpose
The electronic overspeed monitoring system is composed of eddy current sensor and overspeed protection monitor, which is a part of the complete overspeed protection system. Our vibration measurement system applications are 3300 and 3500
Two kinds of vibration measurement, this time focuses on the 23500 oxygen generator used 3500 vibration measurement system.
The 3500 monitoring system is today’s machine inspection system, which is able to collect data through a variety of sensors as a system to provide continuous, online monitoring functions, suitable for machinery
Protected applications, it is a highly functional and flexible system in the traditional framework form of Bentley Nevada system, with a variety of performance and advanced features not available in other systems.
3500 monitoring system is designed for the following purposes:
● The price of each channel is lower than the previous monitoring system, and a table is multi-purpose (shaft vibration, eccentricity, shaft displacement, acceleration can be universal), reducing the factory operating costs.
Small size, light weight, is “electromechanical integration” unique products
A PLC the size of a radio recorder has the function of a 1.8m high relay control cabinet, which generally saves more than 50% of electricity.
Because PLC is a special computer for industrial control, its structure is tight, strong, small size, and because of its strong anti-interference ability, it is easy to load into the mechanical equipment, thus becoming the ideal control equipment to achieve “mechatronics”.
Because PLC has the above characteristics, it integrates microcomputer technology and relay control technology well together, the latest development of PLC products, also adds direct digital control (DDC) technology, and has the function of monitoring computer networking. Therefore, its application covers almost all industrial enterprises, which can transform traditional mechanical products into a new generation of mechatronics products, and is suitable for production process control to achieve high quality, high yield, energy saving and cost reduction of industrial production.
In short, PLC technology represents the current world advanced level of electrical control, PLC and numerical control technology and industrial robots have become the three pillars of machinery industry automation.

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