新型高壓水壓試管機端頭自密封裝置的研制

Research and Development of New Type Tube End Self-sealing Device for Hi-pressure Hydrostatic Testing Machine

摘要: 為保證鋼管質量,相關標準要求對鋼管進行水壓試驗。傳統(tǒng)的水壓試管機存在生產效率低,使用和維護成本高,管端存在試壓盲區(qū)等不足。介紹了一種新型高壓水壓試管機端頭密封裝置,可用于雙線管材水壓試驗設備。其突出特點是,當鋼管內充滿高壓水后,由于水壓的作用使密封圈發(fā)生變形從而起到自密封作用。該密封裝置適合于鋼管超高水壓外徑密封。

Abstract: Following applicable product specification, hydrostatic test is required for steel tubes to ensure the quality. The conventional hydro-tester is bothered with such shortcomings as rather low productivity, high operation and maintenance costs, and untested section of tube end, etc. Elaborated here in the article is a newly-developed tube end sealing device for the high-pressure hydrostatic testing machine, being applicable to the dual- line hydro-tester. The device features such a function, i.e., once the tube is fully filled with hi-pressure water, the sealing ring is deformed under the water pressure, and thus gets self-sealed. The said sealing device is suitable for tube O.D. sealing in case of testing with extra-high water pressure.