Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/2898
標題: 球閥之金屬球墊設計與量測
Design and measurements of metal seated ball valves
作者: 莊文嘉
Jhuang, Wun-Jia
關鍵字: 球閥;ball valve;金屬球墊;洩漏實驗;熱應變;metal seat;leakage test;thermal strain
出版社: 機械工程學系所
引用: 1. 金屬工業研究發展中心, 工業用閥產業研發聯盟結案報告,http://network.stars.org.tw/Default.aspx, 2011. 2. 蔡啟源,張祐誠,應用AVAQUS於球閥組裝應力分析技術報告,財團法人車輛研究測試中心, 2010. 3. 許嘉元,金屬密封塑性變形研究,國立臺灣大學機械工程學研究所碩士論文,2000. 4. Freedonia Group Inc., http://www.marketresearch.com/Freedonia-Group-Inc-v1247/, Industrial valves, 2011. 5. Fliteney, B., “The number of seal patents continues to increase,” Sealing Technology, Issue 4, April 2009, pp. 6-10. 6. Fliteney, B., “Patents review – what did they cover in 2010?” Sealing Technology, Issue 6, June 2011, pp. 9-12. 7. Tsai, C. C., Chang, C. Y., and Tseng , C. H., “Optimal design of metal seated ball valve mechanism,” Structural and Multidisciplinary Optimization, Vol. 26, 2004, pp. 249-255. 8. 張鎖龍,龐明軍,裴峻峰,殷舜時,鄧學風,“20吋通徑中壓球閥的設計和三維數值模擬,” 化工進展,Vol. 24, No. 11, 2005, pp. 1296-1300. 9. CRANE Energy Flow Solutions, http://www.cranevalve.com/, 2011. 10. Tyco Valves and Control, http://www.ktm-valves.com/, 2011. 11. Flowserve, http://www.flowserve.com/, 2011. 12. Chern, M. J., and Wang, C. C., “Control of volumetric flow-rate of ball valve using V-port”, Journal of Fluids Engineering, Vol. 126, 2004, pp. 471-481. 13. Chern, M. J., Wang, C. C., Ma, C. H., “Performance test and flow visualization of ball valve,” Experimental Thermal and Fluid Science, Vol. 31, 2007, pp. 505-512. 14. 徐志誠,球閥使用不同特性擋板的流體控制及孔蝕問題探討,國立中央大學碩士論文,2010. 15. Kimura, T., Tanaka, T., Fujimoto, K., and Ogawa, K., “Hydrodynamic characteristics of a butterfly valve-prediction of pressure loss characteristics,” ISA Trans., Vol. 34, 1995, pp. 319-326. 16. 鄭崑鳳,Studying the Characteristics of Energy Loss Coefficient of Butterfly Valve in Small Opening,國立成功大學水利及海洋工程研究所碩士論文 2006. 17. 邱俊瑋,雙偏心碟閥之金屬密封設計與驗證,國立彰化師範大學機電工程學系研究所碩士論文, 2012. 18. American Petroleum Institute美國石油協會, Control Valve Capacity Test Procedures,http://www.api.org/, 1996. 19. 春明股份有限公司, www.springming.com/, 2013. 20. Leffler, B., "Stainless - stainless steels and their properties," pp. 37, 1994. 21. 中鼎公司管線部材料組,不鏽鋼材料選用準則,pp. 4-21, 2008。 22. National Instruments美商國家儀器中心,技術資料,http://taiwan.ni.com/, 2013. 23. AK Steel Corporation, 316 Stainless Steels Data Sheet, http://www.aksteel.com/, 2013. 24. 鍾官榮,吳嘉哲,雙偏心碟閥之金屬密封設計與分析,國科會產學合作計畫成果報告,NSC 99 – 2622 – E – 018 - 002 - CC3, 2011. 25. 美國機械工程協會, Standards of Pipes and Fittings,https://www.asme.org/, 2013. 26. 展林企業股份有限公司, Mass Flow Meter F-TLF series, http://www.fayininstrument.com.tw/, 2013. 27. 國立中興大學物理系,熱電效應裝置,http://www.phys.nchu.edu.tw/, 2013. 28. 三聯科技股份有限公司,應變規的原理和構,http://www.sanlien.com, 2013. 29.三聯科技股份有限公司,高溫應變規KHCM使用說明,http://www.sanlien.com, 2013.
摘要: 
本研究設計製作二吋金屬球墊球閥,並建置配合球閥管路之洩漏測試設備,提供最高溫度至450 ℃及最大壓力至720 psig之測試環境。金屬球墊球閥之設計係以合作企業目前生產之鐵氟龍球墊球閥構造及尺寸為基礎,同時參考其他廠牌之金屬球墊設計,配置波型彈簧及石墨墊圈,用以加強上下游金屬球墊與鋼球之緊密配合。本研究研發之二吋金屬球墊球閥經洩漏實驗重複測試顯示,於常溫至450 ℃條件下能夠成受最高的氣體壓力為400 psig。測試實驗亦顯示,在這高溫與高壓範圍,開啟與關閉球閥的扭力矩仍保持在30 kgf-cm內。本研究同時建置偵測球墊、鋼球及側蓋接觸間隙之洩漏的位置的設備,並發現在300 psig 及常溫下,氣體僅由鋼球與球墊之密合處洩漏,而洩漏的原因仍需進一步探討。有關金屬球墊熱應變之分析與實驗,一致說明熱膨脹之等向性,並建議球墊與側蓋間的裕度為0.25 mm,以適應加熱至450 ℃時之操作環境。本研發成果將有助於進一步設計不同尺寸之金屬球墊球閥及執行相關的洩漏與其他性能測試實驗。

This study carried out detailed design and manufacture of prototype of a 2-in metal-seated ball valve. Leakage test apparatus was setup to examine the ball valve subjected to the temperatures ranging from room temperature to 450℃ and the pressures up to 720 psig. The structure and dimensions of the newly designed metal-seated are based on the one with PTFE soft ball seats that is currently manufactured by the cooperated company of the present project. A wave spring and a graphite washer are implemented in the 2-in metal-seated ball valve to apply preloaded force to the clearance between the ball and the metal seats. The leakage tests using nitrogen gas indicated that this 2-in metal-seated ball valve can be operated at temperatures up to 450℃ and pressures as high as 400 psig without leakage. However, obvious leaking clearance was found between the metal seat and the ball in the leakage tests performed for the primary contact components of the metal-seated ball valve and further study is needed to clarify the major causes of the problem. Thermal expansion measurements together with the simulations and analyses for the metal seats showed an isotropic nature in the range within 450℃ and suggested an appropriate allowance between the metal seats and the side cover.
URI: http://hdl.handle.net/11455/2898
其他識別: U0005-1608201310192300
Appears in Collections:機械工程學系所

Show full item record
 
TAIR Related Article

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.