本文關鍵詞：高潔凈度正弦機構驅動截止閥門設計　出處：《液壓與氣動》2016年09期 　論文類型：期刊論文

  更多相關文章： 截止閥 高潔凈度閥門 正弦傳動機構 端面密封 鎖定機構

【摘要】：提出了一種新型快開截止閥門,該閥門適用于煤礦井下安全艙生命保障氣路控制場合[1],通過正弦機構將手柄旋轉±90°轉化成閥芯往復直線運動,控制閥芯O形圈與閥體端面間分離、接觸實現閥門開關功能,由于采用密封界面間無相對滑動設計避免了磨損,解決了填料球閥產生磨損顆粒物不可控的問題[2],保證了流路的高清潔度,傳動機構具有增力作用,減少了手柄開啟力矩。手柄鎖定機構的獨特設計具有高可靠性。利用有限元計算了O形圈接觸力與壓縮量關系,為計算旋轉扭矩提供了邊界條件。仿真了閥門流路的速度場和壓力場,得出閥門的通徑與流阻系數。該閥門與現有填料球閥相比具有潔凈度高,密封可靠,手柄開啟力矩小等優(yōu)點,為安全艙氣路控制閥門設計提供了一種新的技術途徑。
[Abstract]:A new type of quick opening valve valve is proposed. The valve is suitable for life support gas path control of underground safety cabin in coal mine. [1] by means of sinusoidal mechanism, the handle is rotated 鹵90 擄into the straight reciprocating motion of the valve core, which controls the separation between the O-ring of the valve core and the end face of the valve body, and realizes the function of valve switch by contact. The wear is avoided by using the non-relative sliding design between the sealing interfaces, and the problem of uncontrollable wear particles produced by the packing ball valve is solved. [2], the high cleanliness of the flow path is guaranteed, and the driving mechanism has the function of increasing the force. The unique design of the handle locking mechanism has high reliability. The contact force of O-ring is calculated by finite element method and the relation between the compression quantity and the contact force is calculated. The velocity field and pressure field of the valve flow path are simulated, and the diameter and flow resistance coefficient of the valve are obtained. Compared with the existing packing ball valve, the valve has high cleanliness and reliable sealing. The advantages of small opening torque of handle provide a new technical way for the design of valve in safe cabin.
【作者單位】： 中國礦業(yè)大學機電與信息工程學院;北京石油化工學院機械工程學院;
【分類號】：TH134
【正文快照】： 引言在礦井安全艙生命保障系統(tǒng)中,氧氣、氮氣輸送氣路需要手動快速開關截止閥,用于氣路切換、排放等,目前采用開關閥門多為填料球閥和旋塞閥。目前主要使用考克式填料球閥,在開關時密封界面相對旋轉90°,填料球閥存在顆粒物不可控問題,其根本原因是摩擦磨損和氣體沖蝕磨損產生

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