高壓截止閥PJ61Y_熱風爐系統_截止閥
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- 服務熱線:0577-67999989
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- 請求信息 : 2023-02-20 10:23:20 HTTP/1.1 GET : http://www.cqsenpu.com/product/globe_valve/002-001499.html
- 運行時間 : 0.480008s [ 吞吐率:2.08req/s ] 內存消耗:5,650.00kb 文件加載:241
- 查詢信息 : 229 queries
- 緩存信息 : 0 reads,1 writes
- 會話信息 : SESSION_ID=aedb2c24d84c59ba316fd5c16442fa6e
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熱風爐系統是一種冶金的專業術語。其換熱原理采用外熱強制內流,熱效率比普通熱風爐提高一倍以上,節能50%。換熱管垂直,燃燒煙煤不堵塞煙道,清除積碳方便。爐子和爐條是空氣冷卻的,不會熔化爐子和爐條。熱風爐的工作原理是煤、油等燃料在燃燒爐內燃燒,熱風爐內的水加熱到一定溫度,然后變成蒸汽,通過管道送到對岸,加熱空氣,縮短衣物烘干時間,或者利用熱能發電。歐拉姆高壓截止閥針對熱風爐系統提供解決方案,擁有行業領先技術,密封性能更好,便捷輕松。
高壓截止閥的啟閉部分為塞狀閥瓣,密封面為平面或圓錐形,閥瓣沿流體中心線直線運動。高壓截止閥閥桿的運動形式有升降桿式(閥桿上下運動,手輪不上下運動)和升降旋轉桿式(手輪隨閥桿上下運動,螺母套在閥體上)。高壓截止閥只適用于全開和全關,不允許調節和節流。
高壓截止閥是一種強制密封閥,所以當閥門關閉時,必須向閥瓣施加壓力,以迫使密封面不泄漏。當介質從閥瓣下面進入閥門時,操作力需要克服的阻力是閥桿與填料之間的摩擦力和介質壓力產生的推力。關閥的力要大于開閥的力,所以閥桿的直徑要大一些,否則閥桿會彎曲。近年來,自密封閥出現以來,截止閥的介質流向從閥瓣上方變為閥腔內。此時,在介質壓力的作用下,閉閥力較小,但開閥力較大,可相應減小閥桿直徑。同時,在介質的作用下,這種閥門也是緊密的。我國的“三合一”閥門曾規定截止閥的流向應為自上而下。
結構比閘閥簡單,制造與維修都較方便。密封面不易磨損及擦傷,密封性好,啟閉時閥瓣與閥體密封面之間無相對滑動,因而磨損與擦傷均不嚴重,密封性能好,使用壽命長。
截止閥的閥桿軸線與閥座密封面垂直。閥桿開啟或關閉行程相對較短,并具有很好的切斷動作,使得這種閥門十分適合作為介質的切斷或調節及節流使用。
閥瓣對焊硬質合金耐沖刷能力強。壓力自密封設計,介質的壓力起伏波動對密封性 能無影響。
1、設計制造按BS5352、MSS SP-118;
2、承插口尺寸按ANSI B16.11;JB/T1751
3、螺紋端尺寸按ANSI B1.20.1;JB/T7306
4、對焊端尺寸按ANSI B16.25;JB/T12224
5、法蘭端尺寸按 ANSI B16.5;JB79
6、閥門檢查和試驗API 598; GB/T13927; JB/T9092
結構特征 螺栓連接閥蓋(B.B)和明桿支架(OS & Y) 焊接閥蓋(W.B)和明桿支架(OS & Y)