| HH法蘭直裝差壓液位計(jì)_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： 8683 |
HH法蘭直裝差壓液位計(jì)_三閥組開(kāi)關(guān)實(shí)用特點(diǎn) 在上個(gè)世紀(jì)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(dú)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(yùn),水電核能等各種行業(yè),壓力變送器,差壓變送器,在線式液位計(jì),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(jì)_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(xì)介紹和說(shuō)明。 本篇文章我們簡(jiǎn)單的對(duì) HH法蘭直裝差壓液位計(jì)_三閥組開(kāi)關(guān)實(shí)用打開(kāi)的順序步驟 進(jìn)行描述，作為專業(yè)的截止閥,HH法蘭直裝差壓液位計(jì)_三閥組開(kāi)關(guān)實(shí)用,儀表接頭生產(chǎn)廠家，讓你了解更多HH法蘭直裝差壓液位計(jì)_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(jì)_三閥組開(kāi)關(guān)實(shí)用是將差壓變送器的正負(fù)壓室與導(dǎo)壓管導(dǎo)通或切斷，或?qū)⒄?fù)壓室切斷或?qū)?。為了均壓，保護(hù)正負(fù)壓室不受太大的壓力。HH法蘭直裝差壓液位計(jì)_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(jì)_三閥組開(kāi)關(guān)實(shí)用其實(shí)應(yīng)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(jì)_三閥組開(kāi)關(guān)實(shí)用打開(kāi)的順序?yàn)椋捍蜷_(kāi)正壓閥、關(guān)閉平衡閥、打開(kāi)負(fù)壓閥。停運(yùn)的順序?yàn)椋宏P(guān)閉負(fù)壓閥、打開(kāi)平衡閥、關(guān)閉正壓閥。
| 差壓變送器使用中應(yīng)注意以下三點(diǎn)： （1）差壓變送器在使用前必須對(duì)其測(cè)量范圍、零點(diǎn)、漂移量、精度、靜壓誤差等進(jìn)行復(fù)核； （2）差壓變送器安裝后，開(kāi)車之前還需檢查一次各種變送器的工作壓力、工作溫度、測(cè)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。 （3）開(kāi)啟和停用時(shí)，應(yīng)避免差壓變送器承受單向受壓，對(duì)每臺(tái)差壓變送器應(yīng)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(hù)差壓變送器和便于調(diào)零位。在開(kāi)啟差壓變送器時(shí)，應(yīng)先打開(kāi)平衡閥2，然后再打開(kāi)閥1和閥3，當(dāng)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(yīng)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(duì)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). |
西安華恒儀表自動(dòng)化儀表生產(chǎn)廠家，作為西部主要的工業(yè)自動(dòng)化過(guò)程控制儀表的制造商，擁有核心的自主傳感器和智能電路板兩項(xiàng)自主研發(fā)生產(chǎn)技術(shù)，不僅核心所有產(chǎn)品的核心部件技術(shù)完全自主-自控，華恒儀表自動(dòng)化儀表生產(chǎn)的壓力變送器，差壓儀表測(cè)量變送器，在線是液位計(jì)，熱電偶，熱電阻，差壓變送器，精度也在不斷的提高，自主設(shè)計(jì)生產(chǎn)的金屬電容式傳感器和硅原理傳感器，精度均由0.2級(jí)提高到0.1級(jí)，作為壓力，差壓儀表測(cè)量，液位，測(cè)量在西部主要的供應(yīng)生產(chǎn)商，微新疆，青海，甘肅，寧夏，等地區(qū)，眾多項(xiàng)目提供獨(dú)立設(shè)計(jì),提供產(chǎn)品高效優(yōu)質(zhì),性能穩(wěn)定,測(cè)量精度高,價(jià)格適中的巨大優(yōu)勢(shì)的自動(dòng)化過(guò)程儀表.
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