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A49Y-10中溫中壓沖量安全裝置H系列 焊接式安全閥

  • 中溫中壓沖量安全裝置H系列 焊接式安全閥
    
  • 中溫中壓沖量安全裝置（H系列）
■A49Y-10■說明    本裝置供蒸汽壓力為P=3.92MPa；t≤450℃的電站鍋爐上使用，防止鍋爐內介質壓力超過允許值，以鍋爐安全運行！鎏攸c    沖量式安全裝置為主、輔閥配套使用，具有排放能力大，調整方便，機械與電器雙重保護，安裝維護工作量小等特點！龉ぷ髟     當鍋爐內介質壓力超過允許值時，沖量安全閥首先開啟，蒸汽進入主安全閥活塞室，使主安全閥打開，對外排汽，待鍋爐內余壓排除后，沖量安全閥關閉，切斷進入主安全閥活塞室的蒸汽，主安全閥在彈簧和介質作用下處行關閉！鼋Y構簡述1、沖量安全裝置如圖所示，主要由沖量安全閥、主安全閥、截止閥、節(jié)流閥等所組成。沖量安全閥為彈簧安全閥，它主要由閥體、閥蓋、閥瓣等零件組件。通過調節(jié)彈簧來調節(jié)沖量安全閥開啟壓力，沖量安全閥還分別帶有用來開啟或關閉用的電磁鐵，機械和電器動作互不干擾。2、主安全閥如圖所示，主要由閥體、閥瓣、活塞室等零件組成。3、沖量安全閥閥座密封面采用鈷基硬質合金堆焊而成，閥瓣為不銹鋼經過熱處理。主安全閥的閥座和閥瓣密封面由鈷基硬質合金噴焊而成。4、沖量安全閥上部帶有開啟和關閉電磁鐵，關閉用電磁鐵平時可以不通電，但當閥門密封面泄漏時，可通電使閥門密封，或當機械調整回座壓力過低時，接通電源促使閥瓣回座，以獲得較高的回座壓力。5、沖量安全閥出廠前經密封試驗、靈敏性試驗。■安裝說明    1、主安全閥A49Y-10V DN150應與沖量安全閥A49Y-10V DN25配套安裝。沖量安全閥引出管與主安全閥的入口管之間應保持一段較長的距離，電接點壓力表和主安全閥入口管之間的距離不得小于5倍主安全閥入口，以免主安全閥動作時，因排汽影響電接點壓力表和沖量安全閥工作正確性。    2、沖量安全閥安裝前，應將管路沖洗干凈。    3、主安全閥與沖量安全閥必須垂直安裝。    4、主安全閥應緊固在構架上，該構架應能承受主安全閥排汽時產生的反作用力，主安全閥的排汽管應有專門的吊架，避免排汽管的質量（重量）與其它作用力作用在主安全閥上及主安全閥與排汽管之間的連接法蘭上，在排汽管制點，應考慮疏水，以免主安全閥排汽時產生水擊。    5、沖量安全閥與電磁鐵一起裝在一個專門的支架上，閥門上杠桿與電磁鐵連接要靈活，不得有卡澀現(xiàn)象。沖量閥應裝在便于維修和調試，灰塵少，空氣干燥、無振動的地方，其環(huán)境溫度不應高于70℃，相對濕度不應超過80%。    6、為了沖量安全閥動作自如，沖量安全閥的回座杠桿頭部的圓弧部分與沖量安全閥杠桿端部的距離應調到：沖量安全閥實際行程+1mm（用護罩頂部M10緊固螺釘調之）。

 

1、主安全閥 DN150；PN102、沖量安全閥 DN25；PN103、法蘭，螺栓，螺母4、節(jié)流閥 DN10；PN325、截止閥 DN32；PN326、截止閥 DN10；PN327、三通閥 DN4；PN32

A49Y-10、A49Y-10V型 DN150主安全閥

A49Y-10、A49Y-10V型 DN25沖量安全閥

■性能規(guī)范

公稱壓力
公稱通徑
試驗壓力
最大工作壓力
最大工作溫度
重量
強度
密封
10.0
150
15.0
4.0
4.0
≤450≤540
202

■主要零件材料1、主安全閥

零件名稱\材料
1
2
3
4
5
6
7
閥體
閥瓣
閥桿
閥座
彈簧
閥蓋
活塞
A49Y-10
碳鋼
碳鋼
滲氮鋼
碳鋼
彈簧鋼
碳鋼
不銹鋼
A49Y-10V
鉻鉬釩鋼
鉻鉬釩鋼
滲氮鋼
鉻鉬釩鋼
彈簧鋼
鉻鉬釩鋼
不銹鋼

2、沖量安全閥

件號
零件名稱
材料
A49Y-10
A49Y-10V
1
閥體
碳鋼
鉻鉬釩鋼
2
閥蓋
碳鋼
鉻鉬釩鋼
3
閥瓣
不銹鋼
鉻鉬釩鋼
4
閥桿
不銹鋼
不銹鋼
5
導向套
不銹鋼
不銹鋼
重量
73.6

 

 

 

鼓風機安全裝置A27TW-2Q彈簧式風機泄壓閥

茨拓閥門制造（上海）有限公司坐落于交通便利、信息發(fā)達的世界經濟大都市——上海市，是一家集工業(yè)閥門研發(fā)、設計、制造及銷售為一體的科技型制造企業(yè)，公司擁有簡潔有效的公司結構，優(yōu)良的職工隊伍，快速的市場反應能力。

鼓風機安全裝置A27TW-2Q彈簧式風機泄壓閥產品概述：

風機專用泄壓閥它具有動作靈敏、調試簡單,排量大,體積小巧,無介質排放反力等特點、能更有效地保護風機及設備的安全。

鼓風機安全裝置A27TW-2Q彈簧式風機泄壓閥采用硅膠墊子密封，壓力可調范圍：壓力0~2KG范圍內可調；泄壓速度快：三個泄壓孔；安全性高：永不生銹；適用范圍廣：適用于高溫蒸汽、空氣等介質。也可根據(jù)你的需要定做專用安全閥。羅茨風機之所以安裝安全閥主要是考慮壓力問題，一般羅茨風機的風量（流量）比較大，而選擇設備是也是主要按風量來進選擇，對于壓頭的要求比較小，主要是為了防止出口壓頭過高（原因可能是風機進口壓力波動較大），讓風機出口壓力趨于穩(wěn)定，保護系統(tǒng)。

鼓風機安全裝置A27TW-2Q彈簧式風機泄壓閥是我廠根據(jù)特定工況和參數(shù)開發(fā)與研制的系列產品，它具有動作靈敏、調試簡單、排量大、體積小巧、無介質排放反力等特點、能更有效地保護風機及設備地安全。

風機泄壓閥型號：

SVF-10，SVF-15，SVF-25，SVF-32，SVF-40，SVF-50，SVF-80，SVF-100

該公司產品分類： 其他閥門 阻火器 疏水閥 減壓閥 安全閥

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