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振動(dòng)開(kāi)關(guān)及振動(dòng)變送器、傳感器VibrationTransmitter/SensorsVibrationMonitoringSolutionsCoolingtowervibrationswitches卻塔振動(dòng)開(kāi)關(guān)當(dāng)發(fā)生過(guò)度振動(dòng)時(shí)，冷卻塔振動(dòng)開(kāi)關(guān)觸發(fā)警報(bào)和/或關(guān)閉設(shè)備有多種選擇，從簡(jiǎn)單的機(jī)械開(kāi)關(guān)到“智能"開(kāi)關(guān)

詳細(xì)介紹

振動(dòng)開(kāi)關(guān)及振動(dòng)變送器、傳感器
Vibration Transmitter / Sensors Vibration Monitoring Solutions

Cooling tower vibration switches
卻塔振動(dòng)開(kāi)關(guān)

當(dāng)發(fā)生過(guò)度振動(dòng)時(shí)，冷卻塔振動(dòng)開(kāi)關(guān)觸發(fā)警報(bào)和/或關(guān)閉設(shè)備有多種選擇，從簡(jiǎn)單的機(jī)械開(kāi)關(guān)到“智能"開(kāi)關(guān)。SPX冷卻技術(shù)提供以下開(kāi)關(guān)類型，每種類型都具有不同的復(fù)雜程度，可幫助監(jiān)測(cè)和保護(hù)冷卻塔部件免受振動(dòng)的潛在破壞性影響。Cooling tower vibration switches trigger an alarm and/or shut down equipment when excessive vibration occurs. A variety of options are available, from simple mechanical switches to “smart" switches. SPX Cooling Technologies provides the following switch types, each with varying levels of sophistication, which can help monitor and protect cooling tower components from potentially destructive effects of vibration.

Mechanical Vibration Switch
機(jī)械振動(dòng)開(kāi)關(guān)

機(jī)械振動(dòng)開(kāi)關(guān)是冷卻塔振動(dòng)管理有效的選擇。然而，它往往是最不準(zhǔn)確和最不可靠的選擇。機(jī)械開(kāi)關(guān)包括一個(gè)慣性敏感機(jī)構(gòu)，當(dāng)振動(dòng)超過(guò)規(guī)定的設(shè)定值時(shí)，該機(jī)構(gòu)激活一個(gè)速動(dòng)開(kāi)關(guān)。當(dāng)開(kāi)關(guān)“跳閘"時(shí)，可以同時(shí)觸發(fā)警報(bào)并關(guān)閉設(shè)備。因?yàn)檫@些開(kāi)關(guān)不收集數(shù)據(jù)，所以它們只能在振動(dòng)事件發(fā)生時(shí)作出反應(yīng)。在許多情況下，這對(duì)于防止故障已經(jīng)太遲了；機(jī)械開(kāi)關(guān)能防止的是對(duì)風(fēng)塔的進(jìn)一步損壞。The mechanical vibration switch is the most cost-effective option for cooling tower vibration management. However, it is often the least accurate and least reliable option. The mechanical switch comprises an inertia-sensitive mechanism that activates a snap-action switch if vibration exceeds a specified set point. The switch, when “tripped," can simultaneously trigger an alert and shut down the equipment. Because these switches do not collect data, they are able only to react to a vibration event as it is occurring. In many cases this is too late to prevent a failure; the only thing the mechanical switch prevents is further damage to the tower.

Electronic Vibration Switch
電子振動(dòng)開(kāi)關(guān)

電子振動(dòng)開(kāi)關(guān)

用于冷卻塔振動(dòng)管理的電子振動(dòng)開(kāi)關(guān)比機(jī)械開(kāi)關(guān)有幾個(gè)優(yōu)點(diǎn)。電子開(kāi)關(guān)利用固態(tài)壓電晶體在振動(dòng)力變形時(shí)提供4-20毫安的電輸出。超過(guò)預(yù)設(shè)極限的振動(dòng)會(huì)觸發(fā)警報(bào)，提醒操作人員檢查冷卻塔，并在故障發(fā)生前將其關(guān)閉。如果在操作員手動(dòng)關(guān)閉風(fēng)塔之前，振動(dòng)超過(guò)第二個(gè)預(yù)設(shè)限值，則開(kāi)關(guān)觸發(fā)固態(tài)繼電器自動(dòng)關(guān)閉。機(jī)械和電子開(kāi)關(guān)通常安裝在結(jié)構(gòu)支撐梁上。另外，電子開(kāi)關(guān)還提供了一個(gè)外部加速計(jì)選項(xiàng)，當(dāng)安裝在變速箱外殼上時(shí)，可以提供更高的振動(dòng)測(cè)量精度。The electronic vibration switch for cooling tower vibration management has several advantages over a mechanical switch. The electronic switch utilizes a solid-state piezoelectric crystal to provide a 4-20mA electrical output when deformed by vibration forces. Vibration that exceeds a preset limit triggers an alarm, alerting operators to inspect the cooling tower and shut it down before failure occurs. If vibration exceeds a second preset limit before operators manually shut down the tower, the switch triggers a solid-state relay for automatic shutdown. Both the mechanical and electronic switches typically are mounted on structural support beams. Alternately, the electronic switch offers an external accelerometer option which provides superior vibration measurement accuracy when mounted on the casing of the gearbox.

“Smart" Vibration Switch
“智能"振動(dòng)開(kāi)關(guān)

“智能"振動(dòng)開(kāi)關(guān)用于冷卻塔振動(dòng)管理的“智能"振動(dòng)開(kāi)關(guān)提供了電子振動(dòng)開(kāi)關(guān)的許多優(yōu)點(diǎn)。智能開(kāi)關(guān)使用內(nèi)置壓電加速度計(jì)測(cè)量振動(dòng)。它占地面積小，外殼密封，可直接安裝在齒輪箱或軸承箱上，不需要額外的外部加速計(jì)。SPX提供的智能開(kāi)關(guān)具有工廠編程設(shè)定值、啟動(dòng)延遲和警報(bào)延遲計(jì)時(shí)器，特別針對(duì)冷卻塔振動(dòng)保護(hù)進(jìn)行了優(yōu)化。The “smart" vibration switch for cooling tower vibration management offers many of the advantages of an electronic vibration switch. The smart switch measures vibration with an imbedded piezoelectric accelerometer. Its small footprint and hermetically sealed casing allow installation directly onto the gearbox or bearing housing and does not require an additional external accelerometer. Smart switches offered by SPX feature factory-programmed set points, start-up delays, and alarm delay timers specifically optimized for cooling tower vibration protection.

	SKF振動(dòng)變送器 CMSS 420VT 傳感器和變送器一體式，直接輸出4-20mA信號(hào) SKF Loop-powered Vibration TransmitterCMSS 420VT
	SKF Machine Condition Transmitter (MCT) systems CMSS 5301 / CMSS 5302 One and two channel, complete MCT system 傳感器和變送器分開(kāi)式的，同樣輸出4-20mA信號(hào) SKF Machine Condition Transmitter (MCT) systems CMSS 5301 / CMSS 5302
	Metrix ST5484E振動(dòng)變送器產(chǎn)品特性 - 環(huán)路供電，無(wú)極性無(wú)極性(IPT)1. 連接防止接線錯(cuò)誤 - 可提供不同的安裝螺栓 - 可提供架空引線，滑槽端子及MIL接頭 - 的檢測(cè)電路 - 溫度沖擊保護(hù) - 寬頻響 - 可選高/低通濾波器 - 嵌入式機(jī)座 & 殼體張力保護(hù) - 可選動(dòng)態(tài)信號(hào)
	Metrix ST5491E速度變送器,現(xiàn)場(chǎng)顯示型4-20mA速度變送器產(chǎn)品特性 - LCD 顯示 - 環(huán)路供電 - 與速度成比例的4-20 mA 輸出 - 直接與PLC, DCS及4-20 mA監(jiān)視器連接 - 可選不同的安裝螺栓 - 的檢測(cè)電路 - 內(nèi)置溫度沖擊保護(hù) - “滑坡斜率*" 保護(hù) - 寬頻響 - 可配高/低通濾波器 - 嵌入式底座 & 殼體張力保護(hù) - 極低的交叉軸靈敏度
	Metrix速度傳感器 Metrix 5485C (375°C) 高溫型速度傳感器溫度: -54°C to 375°C 頻率響應(yīng): 15 Hz 至 2000 Hz 加速度極限: 0 至 50 g 位移極限: 1.8 mm (70 mils) pk-pk
	Bently Nevada 2300 Series Vibration Monitor
	美國(guó)本特利BENTLY傳感器，BENTLY傳感器, BENTLY電纜, BENTLY前置器, BENTLY探頭等
	GE Bently Nevada本特利 1900/65A振動(dòng)檢測(cè)器輕巧體積和多功能的結(jié)合 1900監(jiān)測(cè)器采用簡(jiǎn)單、高性價(jià)比的方式對(duì)選定的機(jī)器或監(jiān)測(cè)點(diǎn)進(jìn)行機(jī)械保護(hù)。它們?cè)谠O(shè)計(jì)上作為獨(dú)立裝置工作，或與我們的Trendmaster ? Pro在線狀態(tài)監(jiān)測(cè)系統(tǒng)協(xié)同工作。常用型號(hào)：1900/65A-01-00-01-00-00;1900/65A-00-00-01-00-00;1900/65A-01-00-03-00-00;1900/65A-01-01-01-00-00;1900/65A-01-01-03-00-00;1900/65A-00-00-03-00-00;1900/65A-00-01-01-00-00;1900/65A-01-01-03-00-01等
	GE Bently Nevada本特利 190501 Velomitor?CT低頻速度傳感器 190501 Velomitor* CT Velocity Transducer 190501 Velomitor?CT低頻速度傳感器，專為冷卻塔振動(dòng)監(jiān)測(cè)設(shè)計(jì)，轉(zhuǎn)速低至90rpm。常用型號(hào)：190501-01-00-00，190501-12-00-00，190501-10-00-01...... 190501 Velomitor* CT Velocity Transducer 190501 Velomitor?CT低頻速度傳感器，專為冷卻塔振動(dòng)監(jiān)測(cè)設(shè)計(jì)，轉(zhuǎn)速低至90rpm
	GE Bently Nevada本特利 330505低頻速度傳感器 330505低頻速度傳感器用于水力發(fā)電，檢測(cè)定子鐵芯、定子機(jī)座和軸承支撐的振動(dòng)；常用型號(hào)： 330505-01-02-02；330505-02-02-02 330505-01-02-00；330505-02-02-00 330505 Low Frequency Velocity Sensor 330505低頻速度傳感器
	Dwyer Vibration Transmitter Model VBT-1 Vibration Transmitter Specifications Housing Material:316 SS. Temperature Limit:-22 to 221°F (-30 to 105°C). Accuracy:< ±3%. Connections:M12 connector. Enclosure Rating:NEMA 6 (IP68). Electrical Rating:9.6 to 32 VDC. Mounting Orientation:Any position. Nonlinearity:< ±0.25% of span. Frequency Range:10 to 1000 Hz. Output Signal:4 to 20 mA. Repeatability:< 0.5%. Weight:0.28 lb (0.125 kg). Agency Approval:CE.