| HH法蘭直裝差壓液位計_三閥組開(kāi)關(guān)實(shí)用特點(diǎn) |
| 信息來(lái)源： 華恒技術(shù):029-81488663 | 2021-01-18 點(diǎn)擊量： 4159 |
HH法蘭直裝差壓液位計_三閥組開(kāi)關(guān)實(shí)用特點(diǎn) 在上個(gè)世紀80年代就依托原艾默生的羅斯蒙特3051智能金屬電容傳感器技術(shù),獨立自主的集成電路生產(chǎn),提供給眾多化工生產(chǎn),水處理,熱工控制,航空海運,水電核能等各種行業(yè),壓力變送器,差壓變送器,在線(xiàn)式液位計,熱電偶,熱電阻.溫度變送器,水平儀,等高品質(zhì)的優(yōu)秀熱控儀表,
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The three valve group is to connect or cut off the positive and negative pressure chambers of the differential pressure transmitter with the pressure pipe, or to cut off or conduct the positive and negative pressure chambers. In order to equalize the pressure, the positive and negative pressure chambers are protected from too much pressure. The three valve group consists of valve body, two stop valves and one balance valve. In fact, the three valve group is widely used as a common valve. The opening sequence of the three valve group is: opening the positive pressure valve, closing the balance valve and opening the negative pressure valve. The sequence of shutdown is as follows: close negative pressure valve, open balance valve and close positive pressure valve |
HH法蘭直裝差壓液位計_三閥組開(kāi)關(guān)實(shí)用打開(kāi)的順序步驟
上一篇我們就安裝儀表接頭的方法 做了詳細介紹和說(shuō)明。 本篇文章我們簡(jiǎn)單的對 HH法蘭直裝差壓液位計_三閥組開(kāi)關(guān)實(shí)用打開(kāi)的順序步驟 進(jìn)行描述，作為專(zhuān)業(yè)的截止閥,HH法蘭直裝差壓液位計_三閥組開(kāi)關(guān)實(shí)用,儀表接頭生產(chǎn)廠(chǎng)家，讓你了解更多HH法蘭直裝差壓液位計_三閥組開(kāi)關(guān)實(shí)用打開(kāi)的順序步驟，
HH法蘭直裝差壓液位計_三閥組開(kāi)關(guān)實(shí)用是將差壓變送器的正負壓室與導壓管導通或切斷，或將正負壓室切斷或導通。為了均壓，保護正負壓室不受太大的壓力。HH法蘭直裝差壓液位計_三閥組開(kāi)關(guān)實(shí)用由閥體、二個(gè)截止閥及一個(gè)平衡閥組成。 HH法蘭直裝差壓液位計_三閥組開(kāi)關(guān)實(shí)用其實(shí)應用非常廣泛，是閥門(mén)的一種常用閥門(mén)。
HH法蘭直裝差壓液位計_三閥組開(kāi)關(guān)實(shí)用打開(kāi)的順序為：打開(kāi)正壓閥、關(guān)閉平衡閥、打開(kāi)負壓閥。停運的順序為：關(guān)閉負壓閥、打開(kāi)平衡閥、關(guān)閉正壓閥。
| 差壓變送器使用中應注意以下三點(diǎn)： （1）差壓變送器在使用前必須對其測量范圍、零點(diǎn)、漂移量、精度、靜壓誤差等進(jìn)行復核； （2）差壓變送器安裝后，開(kāi)車(chē)之前還需檢查一次各種變送器的工作壓力、工作溫度、測量范圍、漂移量等?？词欠窈蛯?shí)際情況相符，若有不符之處，則必須查明原因并糾正后才能開(kāi)車(chē)。 （3）開(kāi)啟和停用時(shí)，應避免差壓變送器承受單向受壓，對每臺差壓變送器應附帶一套三組閥件，通常把三組閥安裝在差壓變送器的上方，其中閥1和閥3分別為高壓和低壓切斷閥，閥2為平衡閥，平衡閥2在開(kāi)表和停表時(shí)，用以保護差壓變送器和便于調零位。在開(kāi)啟差壓變送器時(shí)，應先打開(kāi)平衡閥2，然后再打開(kāi)閥1和閥3，當閥1和閥3全部打開(kāi)后，再關(guān)閉閥2。在停用差壓變送器時(shí)，也應先打開(kāi)平衡閥2，然后再關(guān)閉閥1和閥3。按以上順序開(kāi)啟和停用差壓變送器，可以避免差壓變送器承受單向靜壓而過(guò)載。對于有冷凝膠或隔離液的差壓變送器，也可以避免冷凝膠或隔離液被沖跑。
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When the flow or differential pressure sensor instrument is connected to the process pipeline, the "three valve group" shall be used to: 1. When the medium is added into the pipeline from the initial state (empty), the pressure on both sides of the sensor will change suddenly. If the pressure difference is too large, the sensor of the transmitter may be damaged. To avoid this problem, close the valves a and B on both sides of the sensor and open the bypass valve C; 2. After the medium fills the pipe and approaches to stability and balance, open one of a or B to apply pressure evenly on both sides of the sensor; 3. Close valve C and open another valve in a or B, and the sensor starts to work normally; 4. The closing sequence is the reverse of the above. In addition, The 3-valve manifold has other functions, such as cleaning the pipeline after running for a period of time, and the sensor part is not affected (the pipeline is bypassed). |
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