?mm靈敏度為7.87?V/rnm?號(hào)、2號(hào)、3號(hào)軸承處。每個(gè)軸承處安裝兩只互成90°?,垂直于軸承,探頭與水平?方向的夾角為45°,分別測(cè)量X、Y方向上的振動(dòng)。一般渦流本特利傳感為本特利傳感器線圈直徑的三倍,因此本特利傳感器對(duì)應(yīng)的測(cè)量寬度應(yīng)為本特利傳感器直徑的三倍,而且在本特利傳感器空間24mm范圍內(nèi)不應(yīng)有其它金屬物存在,否則m的探頭,安裝間?隙電壓為-?9.75?V或1.2?mm左右。由于本特利傳感器線形電壓范圍大大超過測(cè)量范圍,許有較大的偏差,只要保段內(nèi)即可,但為了滿足故障診斷和可靠性的需要,一般要?求安裝電壓9.75土0.2?V。
1.2軸向位移、本特利高低壓差脹傳感器的安裝
軸向位移測(cè)的是推力軸軸向位移,在機(jī)組運(yùn)行過程中,使動(dòng)靜部件之間保持一定?的軸向間隙,避免汽輪機(jī)內(nèi)部轉(zhuǎn)動(dòng)部件和靜止探頭安裝在2號(hào)軸承處,分別裝于甲乙兩側(cè),探頭朝向低壓缸方向安裝探頭型號(hào)為7200敏度為3.937?V/mm，前置器供電電壓為-24V。大軸相對(duì)于汽缸的設(shè)計(jì)零點(diǎn)為止推軸承靠在工作瓦面為大軸零位。在安裝軸向位移和低壓差脹本特利傳感器前,首先要把要求安裝。軸向位移的量程范圍為-2?mm一+?2?m?V?沾化電廠汽輪機(jī)膨脹相對(duì)死點(diǎn)在2號(hào)軸承處,高壓缸轉(zhuǎn)子膨脹在以2號(hào)軸承處為相對(duì)死點(diǎn)向前箱方向膨脹,低壓缸轉(zhuǎn)子膨脹在以2軸承處為相高低壓差脹都是朝著發(fā)電機(jī)方向安裝,要使高低缸差脹測(cè)量范圍均在線形范圍之內(nèi),按照探頭線性中點(diǎn)及量程范圍-?2--10?mm定位。探頭零位的安裝電壓可按下式計(jì)算:
高壓差脹探頭零位安裝電壓:探頭線性靈敏度(0.8?V/mm)*4
低壓差脹:探頭線性中點(diǎn)(0.8?V/mm)*4
所以,高壓差脹探頭零位安裝電壓為-11.10?零位安裝電壓為-3.8V。
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主要產(chǎn)品：PLC?、DCS?系統(tǒng)備件?模塊ABB?Robots.?FANUC?Robots、KUKA?Robots、Mitsubishi?Robots、Panasonic?Robots。
Siemens(西門子)：Siemens?MOORE，?Siemens?Simatic?C1，Siemens數(shù)控系統(tǒng)等。
Bosch?Rexroth（博世力士樂）：Indramat，I/O模塊,PLC控制器,驅(qū)動(dòng)模塊等。
Invensys?Foxboro（?？怂共_）：I/A?Series系統(tǒng)，F(xiàn)BM（現(xiàn)場(chǎng)輸入/輸出模塊）順序控制、梯形邏輯控制。??
?Bosch?Rexroth(力士樂)：、HONEYWELL?TDC系列，?QCS,S9000等備件。
電子傳動(dòng)與控制，I/O模塊,PLC控制器,驅(qū)動(dòng)器GE?IC647/693/697/698系列。
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